MURATA POWER SOLUTIONS ULS-3.3/8-D48P-C

ULS 30-Watt Series www.murata-ps.com Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FEATURES n Small footprint DC/DC converter, ideal for embedded applications n 1.30" x 0.90" x 0.36" open frame package Typical units n Industry standard DOSA "brick" format and pinout with surface mount option n 2:1 Input Voltage Range (36V-75V, D48) PRODUCT OVERVIEW n 2250 Volt Basic input/output isolation The world of “brick” DC/DC converters has seen using CPU’s, ASIC’s, programmable logic and (48V models) a steady size reduction. The ULS series makes an- FPGA’s. No minimum load is required. For systems n Up to 30 Watts total output power with other dramatic size shrink down to a “sixteenth- requiring controlled startup/shutdown, an external overtemperature shutdown brick” width (0.91 inches) while still retaining up remote On/Off control may use a switch, transistor to 30 Watt output and full 2250 Volt DC isolation. or digital logic. n High efficiency synchronous rectifier forward The PC-board mount converter family accepts Many self-protection features on the ULS series topology 36 to 75 Volts DC inputs and delivers fixed outputs avoid both converter and external circuit hazards. n Stable no-load operation with no required regulated to within ±0.125%. The ULS converters These include input undervoltage lockout and external components are ideal for datacom and telecom applications, overtemperature shutdown. The outputs current cell phone towers, data centers, server farms and limit using the “hiccup” autorestart technique and n Operating temperature range -40 to +85°C network repeaters. the outputs may be short-circuited indefinitely. with derating ULS outputs may be trimmed within -20% to Additional features include output overvoltage and n Certified to UL/EN/IEC 60950-1, CAN/CSA +10% of nominal output while delivering fast set- reverse conduction elimination. C22.2 No. 60950-1, EN60950-1 safety tling to current step loads and no adverse effects The synchronous rectifier forward topology approvals, 2nd Edition from higher capacitive loads. Excellent ripple and yields high efficiency for minimal heat buildup and n Extensive self-protection shut down features noise specifications assure compatibility to circuits “no fan” operation. F1 +Vin (1) Isolation +Vout (8) Barrier • Switching +Sense (7)* External • Filters On/Off DC Control Controller Power • Current Sense (2) and Power Source Transfer -Sense (5)* Open = On Reference and Closed = Off Error Amplifier (Positive Trim (6) logic) -Vin (3) -Vout (4) *Sense is included on the ULS-3.3/8-D48 and ULS-5/6-D48 only. Figure 1. Simplified Block Diagram Typical topology is shown For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_ULS-30W_C09 Page 1 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters  PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Efficiency Root Model  R/N (mV pk-pk) Regulation (max.) ➂ Case (inches) Vout Iout Power Vin Nom. Range Iin, no load Iin, full (V) (A, max.) (W) (V) (V) (mA) load (A) Typ. Max. Line Load Min. Typ. ULS-3.3/8-D48 3.3 8 26.5 90 130 ±0.1% ±0.1% 48 36-75 75 0.58 89% 90% 1.30x0.90x0.36 ULS-5/6-D48 5 6 30 75 100 ±0.125% ±0.1% 48 36-75 20 0.69 89% 91% 1.30x0.90x0.36 ULS-12/2.5-D48 12 2.5 30 130 150 ±0.125% ±0.125% 48 36-75 25 0.71 86% 87.7% 1.30x0.90x0.36 ULS-15/2-D48 15 2 30 115 125 ±0.125% ±0.125% 48 36-75 25 0.70 87.5% 89% 1.30x0.90x0.36   Please refer to the Part Number Structure when ordering. Regulation specifications describe output voltage deviations from a nominal/midpoint value to either  All specifications are typical at nominal line voltage and full load, +25°C unless otherwise noted. See extreme (50% load step). detailed specifications. Output capacitors are 1 μF ceramic multilayer in parallel with 10 μF electrolytic. I/O caps are necessary for our test equipment and may not be needed for your application. PART NUMBER STRUCTURE ULS - 12 / 2.5 - D48 N M Lx - C RoHS Hazardous Substance Compliance (does not claim EU RoHS exemption 7b–lead in solder) C = RoHS-6 Sixteenth Brick Series Pin Length Option (Thru-hole only) Blank = Standard pin length 0.180˝ (4.6mm) L1 = 0.110˝ (2.79mm) ➀ L2 = 0.145˝ (3.68mm) ➀ Nominal Output Voltage: SMT Version Blank = Through-hole mount, no SMT Maximum Rated Output Current M = Surface mount (MSL Rating 2) ➁ Current in Amps On/Off Control Logic: Input Voltage Range: N = Negative D48 = 36-75 Volts (48V nominal) P = Positive ➀ Special quantity order is required; samples available with standard pin length only. ➁ SMT (M) versions not available in sample quantities. ➂ Some model number combinations may not be available. See website or contact your local Murata sales representative. www.murata-ps.com/support MDC_ULS-30W_C09 Page 2 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-3.3/8-D48 ABSOLUTE MAXIMUM RATINGS Conditions ➀ Minimum Typical/Nominal Maximum Units Input Voltage, Continuous 0 80 Vdc Input Voltage, Transient 100 mS max. duration 100 Vdc Isolation Voltage Input to output, continuous 2250 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 26.66 W Current-limited, no damage, short-circuit Output Current 0 8 A protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions ➀ ➂ Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 1.5 A Start-up threshold Rising input voltage 34 35.2 36 Vdc Undervoltage shutdown Falling input voltage 32 34 35.2 Vdc Turn-On/Turn-Off Hysteresis 1.5 Vdc Overvoltage shutdown None Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type LC Input current Full Load Conditions Vin = nominal 0.58 0.63 A Low Line Vin = minimum 0.77 0.83 A 2 Inrush Transient 0.05 A -Sec. Output in Short Circuit 50 100 mA No Load Iout = minimum, unit = ON 75 100 mA Shut-Down Input Current (Off, UV, OT) 1 2 mA Measured at input with specified filter 30 mA, p-p Reflected (back) ripple current ➁ GENERAL and SAFETY Efficiency Vin = 48V, full load 89 90 % Vin = min., full load 89.5 90.5 % Isolation Isolation Voltage Input to output, continuous 2250 Vdc Insulation Safety Rating basic Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF Certified to UL-60950-1, CSA-C22.2 No. 60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF 2 Hours x 10 fixed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 320 350 380 KHz Startup Time Power on to Vout regulated 50 mS Startup Time Remote ON to Vout regulated 50 mS 50-75-50% load step, settling time to within Dynamic Load Response 100 150 µSec 2% of Vout Dynamic Load Peak Deviation same as above ±30 ±100 mV FEATURES and OPTIONS Remote On/Off Control ➄ “N” suffix: Negative Logic, ON state ON = Ground pin or external voltage -0.7 1.2 V Negative Logic, OFF state OFF = Pin open or external voltage 10 15 V Control Current Open collector/drain 1 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 10 15 V Positive Logic, OFF state OFF = Ground pin or external voltage -0.7 1.2 V Control Current Open collector/drain 1 mA SMT Mounting "M" suffix www.murata-ps.com/support MDC_ULS-30W_C09 Page 3 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-3.3/8-D48 (CONT.) OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 2.61 25 26.66 W Voltage Nominal Output Voltage No trim 3.2674 3.3 3.333 Vdc Setting Accuracy At 50% load, no trim -1 1 % of Vnom Output Voltage Range User-adjustable -10 10 % of Vnom. Overvoltage Protection Via magnetic feedback 4.2 5 5.7 Vdc Current Output Current Range 0.8 8 8 A Minimum Load Current Limit Inception 98% of Vnom., after warmup 8.5 10 11.3 A Short Circuit Hiccup technique, autorecovery within ±1.25% Short Circuit Current 0.3 mA of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation ➅ Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.1 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.1 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 90 130 mV pk-pk Temperature Coefficient At all outputs ±0.02 % of Vout./°C Maximum Capacitive Loading Low ESR, resistive load only 2000 μF MECHANICAL (Through Hole Models) Conditions ➀ ➂ Outline Dimensions 1.30x0.90x0.36 Inches (Please refer to outline drawing) LxWxH 33.02x22.86x9.144 mm Weight 0.58 Ounces 16.4 Grams Through Hole Pin Diameter 0.04 & 0.062 Inches 1.016 & 1.575 mm Through Hole Pin Material Copper alloy TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches Gold overplate 5 µ-inches ENVIRONMENTAL Operating Ambient Temperature Range With Derating -40 85 °C Operating Case Temperature Range No derating, full power, 200lfm, Vertical mount -40 70 °C Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 110 115 120 °C Electromagnetic Interference External filter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class Relative humidity, non-condensing To +85°C 10 90 %RH Altitude must derate -1%/1000 feet -500 10,000 feet -152 3048 meters RoHS rating ➃ RoHS-6 Performance Specification Notes ➀ Unless otherwise noted, all specifications are typical at nominal input voltage, nominal output voltage ➂ All models are stable and regulate to specification under no load. and full load. General conditions are +25° Celsius ambient temperature, near sea level altitude, ➃ Reduction of Hazardous Substances (RoHS) compliance is to RoHS-6 (six substances restricted natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF including lead). See specifications. multi-layer ceramic output capacitors. The external input capacitor is 22 μF ceramic. All capacitors ➄ The Remote On/Off Control is referred to -Vin. are low-ESR types wired close to the converter. These capacitors are necessary for our test equip- ➅ Regulation specifications describe the output voltage changes as the line voltage or load current is ment and may not be needed in the user's application. varied from its nominal or midpoint value to either extreme. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus = 220 μF/100V, Cin = 33 μF/100V and Lbus = 12 μH. www.murata-ps.com/support MDC_ULS-30W_C09 Page 4 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TYPICAL PERFORMANCE CURVES, ULS-3.3/8-D48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating at Sea Level (Vin = 36-75V, airflow is from pin 1 to pin 3) 92 8 90 0.33 to 2.0 m/s (65 to 400 LFM) 88 7 86 6 84 82 5 80 4 78 76 VIN = 75V 3 74 VIN = 60V 2 72 VIN = 48V 70 VIN = 36V 1 68 0 66 30 35 40 45 50 55 60 65 70 75 80 85 64 Ambient Temperature (ºC) 0.00 0.81 1.61 2.41 3.21 4.01 4.81 5.61 6.41 7.21 8.01 Load Current (Amps) INFRARED THERMAL IMAGE, ULS-3.3/8-D48 Thermal image with hot spot at full load current with 25°C ambient temperature. Natural convention is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q7 max temp=120°C/IPC9592 guidelines. (+Vin) (+Vout) (-Vin) (-Vout) www.murata-ps.com/support MDC_ULS-30W_C09 Page 5 of 30 Efficiency (%) Output Current (Amps) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-3.3/8-D48 On/Off Enable Delay (Vin=36V, vout=nom, Iout=8A, Cload =1uF || 10uF, Ta=+25°C, On/Off Enable Delay (Vin=75V, vout=nom, Iout=8A, Cload =1uF || 10uF, Ta=+25°C, ScopeBW=20Mhz) Trace 1= Enable, Trace 3= Vout. ScopeBW=20Mhz) Trace 1= Enable, Trace 3= Vout. Startup Delay (Vin=48V, Vout=nom, Iout=8A, Cload= 1uF || 10 uF, Ta=+25°C, Startup Delay (Vin=48V, Vout=nom, Iout=8A, Cload= 1uF || 10 uF & 2000uF, Ta=+25°C, ScopeBW=20Mhz) Trace 1= Vin, Trace3, Vout. ScopeBW=20Mhz) Trace 1= Vin, Trace3, Vout. www.murata-ps.com/support MDC_ULS-30W_C09 Page 6 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-3.3/8-D48 Step Load Transient Response (Vin=48V, Vout=nom, Iout=50-100-50% of full load, Step Load Transient Response (Vin=48V, Vout=nom, Iout=50-75-50% of full load, Cload= 1uF || 10uF, Ta=+25°C, ScopeBW=20Mhz) Cload= 1uF || 10uF, Ta=+25°C, ScopeBW=20Mhz) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=8A, Cload= 1uF || 10uF, Ta=+25°C, ScopeBW=20Mhz) www.murata-ps.com/support MDC_ULS-30W_C09 Page 7 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-5/6-D48 ABSOLUTE MAXIMUM RATINGS Conditions ➀ Minimum Typical/Nominal Maximum Units Input Voltage, Continuous 0 80 Vdc Input Voltage, Transient 100 mS max. duration 100 Vdc Isolation Voltage Input to output, continuous 2250 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 30.3 W Current-limited, no damage, short-circuit Output Current 0 6 A protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions ➀ ➂ Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 2 A Start-up threshold Rising input voltage 32.5 35 35.9 Vdc Undervoltage shutdown Falling input voltage 31 33.5 34 Vdc Turn-On/Turn-Off Hysteresis 1.62 1.67 1.72 Vdc Overvoltage shutdown None Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type LC Input current Full Load Conditions Vin = nominal 0.69 0.71 A Low Line Vin = minimum 0.92 0.95 A 2 Inrush Transient 0.05 A -Sec. Output in Short Circuit 10 100 mA No Load Iout = minimum, unit = ON 20 60 mA Shut-Down Input Current (Off, UV, OT) 1 3 mA Measured at input with specified filter 30 mA, p-p Reflected (back) ripple current ➁ GENERAL and SAFETY Efficiency Vin = 48V, full load 89 91 % Vin = min., full load 89 91 % Isolation Isolation Voltage Input to output, continuous 2250 Vdc Insulation Safety Rating basic Isolation Resistance 10 MΩ Isolation Capacitance 3300 pF Certified to UL-60950-1, CSA-C22.2 No. 60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF TBD Hours x 10 fixed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 325 355 385 KHz Startup Time Power on to Vout regulated 10 40 mS Startup Time Remote ON to Vout regulated 10 40 mS 50-75-50% load step, settling time to within Dynamic Load Response 75 100 µSec 1% of Vout Dynamic Load Peak Deviation same as above ±150 mV FEATURES and OPTIONS Remote On/Off Control ➄ “N” suffix: Negative Logic, ON state ON = Ground pin or external voltage -0.1 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 2.5 15 V Control Current Open collector/drain 1 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 10 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.7 V Control Current Open collector/drain 1 mA SMT Mounting “M” suffix www.murata-ps.com/support MDC_ULS-30W_C09 Page 8 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-5/6-D48 (CONT.) OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power 0 30 30.3 W Voltage Nominal Output Voltage No trim 4.95 5 5.05 Vdc Setting Accuracy At 50% load, no trim -1 1 % of Vnom Output Voltage Range User-adjustable -10 10 % of Vnom. Overvoltage Protection Via magnetic feedback 6 6.5 7.2 Vdc Current Output Current Range 0 6 6 A Minimum Load Current Limit Inception 98% of Vnom., after warmup 6.5 7.5 8.25 A Short Circuit Hiccup technique, autorecovery within ±1.25% Short Circuit Current 0.3 A of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation ➅ Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.125 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.1 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 75 100 mV pk-pk Temperature Coefficient At all outputs ±0.02 % of Vout./°C Maximum Capacitive Loading Low ESR, resistive load only 2000 μF MECHANICAL (Through Hole Models) Conditions ➀ ➂ Outline Dimensions 1.30x0.90x0.36 Inches (Please refer to outline drawing) LxWxH 33.02x22.86x9.144 mm Weight 0.58 Ounces 16.4 Grams Through Hole Pin Diameter 0.04 & 0.062 Inches 1.016 & 1.575 mm Through Hole Pin Material Copper alloy TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches Gold overplate 5 µ-inches ENVIRONMENTAL Operating Ambient Temperature Range With Derating -40 85 °C Operating Case Temperature Range No derating, full power, 200lfm, Vertical mount -40 70 °C Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 110 115 120 °C Electromagnetic Interference External filter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class RoHS rating ➃ RoHS-6 Performance Specification Notes ➀ Unless otherwise noted, all specifications are typical at nominal input voltage, nominal output voltage ➂ All models are stable and regulate to specification under no load. and full load. General conditions are +25° Celsius ambient temperature, near sea level altitude, ➃ Reduction of Hazardous Substances (RoHS) compliance is to RoHS-6 (six substances restricted natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF including lead). See specifications. multi-layer ceramic output capacitors. The external input capacitor is 22 μF ceramic. All capacitors ➄ The Remote On/Off Control is referred to -Vin. are low-ESR types wired close to the converter. These capacitors are necessary for our test equip- ➅ Regulation specifications describe the output voltage changes as the line voltage or load current is ment and may not be needed in the user's application. varied from its nominal or midpoint value to either extreme. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus = 220 μF/100V, Cin = 33 μF/100V and Lbus = 12 μH. www.murata-ps.com/support MDC_ULS-30W_C09 Page 9 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TYPICAL PERFORMANCE CURVES, ULS-5/6-D48 Efficiency vs. Line Voltage and Load Current @ 25°C Maximum Current Temperature Derating at Sea Level (Vin = 36-75V, airflow is from pin 3 to pin 1) 91 7 90 89 6 88 0.33 to 2.0 m/s (65 to 400 LFM) 87 5 86 VIN = 75V 85 4 VIN = 60V 84 VIN = 48V 3 83 VIN = 36V 82 81 2 80 79 1 78 0 77 30 35 40 45 50 55 60 65 70 75 80 85 76 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Ambient Temperature (ºC) Load Current (Amps) Power Dissipation vs. Load Current @ 25°C Current Limit 5.5 3.5 5 4.5 3.0 4 2.5 3.5 3 VIN = 75V 2.0 2.5 VIN = 75V VIN = 60V 2 VIN = 60V 1.5 VIN = 36V VIN = 48V 1.5 VIN = 48V VIN = 36V 1.0 1 0.5 0.5 0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0 7.2 7.4 7.6 7.8 8.0 8.2 Load Current (Amps) Output Load Current (Amps) INFRARED THERMAL IMAGE, ULS-5/6-D48 Thermal image with hot spot at full current with 25°C ambient temperature. Natural convention is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q7 max temp=120°C/IPC9592 guidelines. 91.5°C 90 (+Vin) (+Vout) Q6: 81.3 T1: 78.1 Q7: 82.9 80 R4: 80.1 R20: 82.3 70 60 50 (-Vin) (-Vout) 47.9°C www.murata-ps.com/support MDC_ULS-30W_C09 Page 10 of 30 Loss (Watts) Efficiency (%) Output Current (Amps) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-5/6-D48 Startup Delay (Vin=48V, Iout=6A, Cload=0, Ta=+25°C) Trace1=Vin, Trace4=Vout. Startup Delay (Vin=48V, Iout=6A, Cload=2200uF, Ta=+25°C) Trace1=Vin, Trace4=Vout On/Off Enable Delay (Vin=48V, Iout=6A, Cload=0, Ta=+25°C) On/Off Enable Delay (Vin=48V, Iout=6A, Cload=2000uF, Ta=+25°C) Trace1=Enable, Trace4=Vout Trace1=Enable, Trace4=Vout www.murata-ps.com/support MDC_ULS-30W_C09 Page 11 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-5/6-D48 Output Ripple and Noise (Vin=48V, Iout=0A, Cload= 1uF || 10uf, Ta=+25°C) Output Ripple and Noise (Vin=48V, Iout=6A, Cload= 1uF || 10uf, Ta=+25°C) Step Load Transient Response (Vin=48V, Iout=50-75-50% of Imax, Cload= 1uf || 10uF, Ta=+25°C) www.murata-ps.com/support MDC_ULS-30W_C09 Page 12 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-12/2.5-D48 ABSOLUTE MAXIMUM RATINGS Conditions ➀ Minimum Typical/Nominal Maximum Units Input Voltage, Continuous 0 80 Vdc Input Voltage, Transient 100 mS max. duration 100 Vdc Isolation Voltage Input to output, continuous 2250 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 30 W Current-limited, no damage, short-circuit Output Current 0 2.5 A protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions ➀ ➂ Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 2 A Start-up threshold Rising input voltage 32.5 33.5 35.5 Vdc Undervoltage shutdown Falling input voltage 31 32 33 Vdc Turn-On/Turn-Off Hysteresis 1.40 1.46 1.52 Vdc Overvoltage shutdown None Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type Capacitive Input current Full Load Conditions Vin = nominal 0.71 0.73 A Low Line Vin = minimum 0.95 0.97 A 2 Inrush Transient 0.05 A -Sec. Output in Short Circuit 100 200 mA No Load Iout = minimum, unit = ON 25 50 mA Shut-Down Input Current (Off, UV, OT) 5 10 mA Measured at input with specified filter 15 30 mA, p-p Reflected (back) ripple current ➁ GENERAL and SAFETY Efficiency Vin = 48V, full load 86.0 87.7 % Vin = min., full load 85.5 87.5 % Isolation Isolation Voltage Input to output, continuous 2250 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1600 pF Certified to UL-60950-1, CSA-C22.2 No. 60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF 3 Hours x 10 fixed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 260 285 310 KHz Startup Time Power on to Vout regulated 30 mS Startup Time Remote ON to Vout regulated 30 mS 50-75-50% load step, settling time to within Dynamic Load Response 200 300 µSec 1% of Vout Dynamic Load Peak Deviation same as above ±250 ±300 mV FEATURES and OPTIONS Remote On/Off Control ➄ “N” suffix: Negative Logic, ON state ON = Ground pin or external voltage -0.1 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 2.5 15 V Control Current Open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 10 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.7 V Control Current Open collector/drain 1 2 mA SMT Mounting "M" suffix www.murata-ps.com/support MDC_ULS-30W_C09 Page 13 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-12/2.5-D48 (CONT.) OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 0 30 30 W Voltage Nominal Output Voltage No trim 11.88 12.00 12.12 Vdc Setting Accuracy At 50% load, no trim -1 +1 % of Vnom Output Voltage Range User-adjustable -20 +10 % of Vnom. Overvoltage Protection Via magnetic feedback 13.3 15 18 Vdc Current Output Current Range 0.0 2.5 2.5 A Minimum Load No minimum load Current Limit Inception 98% of Vnom., after warmup 3.3 3.5 4.5 A Short Circuit Hiccup technique, autorecovery within ±1.25% Short Circuit Current 40 mA of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation ➅ Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.125 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.125 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 130 150 mV pk-pk Temperature Coefficient At all outputs ±0.02 % of Vout./°C Maximum Capacitive Loading Low ESR, resistive load only 0 2200 μF MECHANICAL (Through Hole Models) Conditions ➀ ➂ Outline Dimensions 1.30x0.90x0.36 Inches (Please refer to outline drawing) LxWxH 33.02x22.86x9.144 mm Weight 0.58 Ounces 16.4 Grams Through Hole Pin Diameter 0.04 & 0.062 Inches 1.016 & 1.575 mm Through Hole Pin Material Copper alloy TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches Gold overplate 5 µ-inches ENVIRONMENTAL Operating Ambient Temperature Range With Derating -40 85 °C Operating Case Temperature Range No derating, full power -40 105 °C Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 115 125 130 °C Electromagnetic Interference External filter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class Relative humidity, non-condensing To +85°C 10 90 %RH Altitude must derate -1%/1000 feet -500 10,000 feet -152 3048 meters RoHS rating ➃ RoHS-6 Performance Specification Notes ➀ Unless otherwise noted, all specifications are typical at nominal input voltage, nominal output voltage ➂ All models are stable and regulate to specification under no load. and full load. General conditions are +25° Celsius ambient temperature, near sea level altitude, ➃ Reduction of Hazardous Substances (RoHS) compliance is to RoHS-6 (six substances restricted natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF including lead). See specifications. multi-layer ceramic output capacitors. The external input capacitor is 22 μF ceramic. All capacitors ➄ The Remote On/Off Control is referred to -Vin. are low-ESR types wired close to the converter. These capacitors are necessary for our test equip- ➅ Regulation specifications describe the output voltage changes as the line voltage or load current is ment and may not be needed in the user's application. varied from its nominal or midpoint value to either extreme. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus = 220 μF/100V, Cin = 33 μF/100V and Lbus = 12 μH. www.murata-ps.com/support MDC_ULS-30W_C09 Page 14 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TYPICAL PERFORMANCE CURVES, ULS-12/2.5-D48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C 89 4.5 4.0 87 3.5 85 3.0 83 2.5 81 2.0 VIN = 75V IN = 60V V 79 VIN = 75V 1.5 VIN = 48V VIN = 60V VIN = 36V 77 VIN = 48V 1.0 VIN = 36V 75 0.5 0.25 0.48 0.70 0.93 1.15 1.38 1.60 1.83 2.05 2.28 2.50 0.3 0.5 0.7 0.9 1.2 1.4 1.6 1.8 2.1 2.3 2.5 Load Current (Amps) Load Current (Amps) Maximum Current Temperature Derating at Sea Level Maximum Current Temperature Derating at Sea Level (Vin = 36V, 48V, and 75V, airflow is from pin 3 to pin 1) (Vin = 60V, airflow is from pin 3 to pin 1) 3.0 3.0 2.5 2.5 0.33 to 2.0 m/s (65 to 400 LFM) 0.33 m/s (65 LFM) 0.5 to 2.0 m/s (100 to 400 LFM) 2.0 2.0 30 35 40 45 50 55 60 65 70 75 80 85 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Ambient Temperature (ºC) INFRARED THERMAL IMAGE, ULS-12/2.5-D48 Thermal image with hot spot at full load current with 25 °C ambient temperature. Natural convention is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q6 max Temp=120 °C/IPC9592 guidelines. 99.5°C (+Vin) (+Vout) L1: 77.3 80 T1: 79.4 CR17: 94.3 60 Q6: 94.7 R6: 92.4 42.4°C (-Vin) (-Vout) www.murata-ps.com/support MDC_ULS-30W_C09 Page 15 of 30 Efficiency (%) Output Current (Amps) Loss (Watts) Output Current (Amps) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-12/2.5-D48 On/Off Enable Delay (Vin = 48V, Vout = nom., Iout = 2.5A, Cload = 0 µF, Ta = +25°C., Power On Startup Delay (Vin = 48V, Vout = nom., Iout = 2.5A, Cload = 0 µF, Ta = +25°C., ScopeBW = 20MHz) Trace 1 = Enable, Trace 4 = Vout ScopeBW = 20MHz) Trace 1 = Vin, Trace 4 = Vout Step Load Transient Response (Vin = 48V, Vout = nom., Iout = 50-75-50% of full load, Output Ripple and Noise (Vin = 48V, Vout = nom., Iout = no load, Cload = 1 µF ceramic || Cload = 1 µF ceramic || 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) Output Ripple and Noise (Vin = 48V, Vout = nom., Iout = 2.5A, Cload = 1 µF ceramic || 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) www.murata-ps.com/support MDC_ULS-30W_C09 Page 16 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-15/2-D48 ABSOLUTE MAXIMUM RATINGS Conditions ➀ Minimum Typical/Nominal Maximum Units Input Voltage, Continuous 0 80 Vdc Input Voltage, Transient 100 mS max. duration 100 Vdc Isolation Voltage Input to output, continuous 2250 Vdc Input Reverse Polarity None, install external fuse None Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 30 W Current-limited, no damage, short-circuit Output Current 0 2 A protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Conditions ➀ ➂ Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 2 A Start-up threshold Rising input voltage 32.5 33.5 35.5 Vdc Undervoltage shutdown Falling input voltage 31 32 33 Vdc Turn-On/Turn-Off Hysteresis 1.42 1.48 1.52 Vdc Overvoltage shutdown None Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type Capacitive Input current Full Load Conditions Vin = nominal 0.7 0.714 A Low Line Vin = minimum 0.94 0.95 A 2 Inrush Transient 0.05 A -Sec. Output in Short Circuit 100 200 mA No Load Iout = minimum, unit = ON 25 50 mA Shut-Down Input Current (Off, UV, OT) 5 10 mA Measured at input with specified filter 15 30 mA, p-p Reflected (back) ripple current ➁ GENERAL and SAFETY Efficiency Vin = 48V, full load 87.5 89.0 % Vin = min., full load 87.5 89.0 % Isolation Isolation Voltage Input to output, continuous 2250 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1600 pF Certified to UL-60950-1, CSA-C22.2 No.60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF 3 Hours x 10 fixed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 280 290 310 KHz Startup Time Power on to Vout regulated 30 mS Startup Time Remote ON to Vout regulated 30 mS 50-75-50% load step, settling time to within Dynamic Load Response 200 300 µSec 1% of Vout Dynamic Load Peak Deviation same as above ±250 ±300 mV FEATURES and OPTIONS Remote On/Off Control ➄ “N” suffix: Negative Logic, ON state ON = Ground pin or external voltage -0.1 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 2.5 15 V Control Current Open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 10 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.7 V Control Current Open collector/drain 1 2 mA SMT Mounting "M" suffix www.murata-ps.com/support MDC_ULS-30W_C09 Page 17 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters FUNCTIONAL SPECIFICATIONS, ULS-15/2-D48 (CONT.) OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 0 30 30 W Voltage Nominal Output Voltage No trim 14.85 15.00 15.15 Vdc Setting Accuracy At 50% load, no trim -1 +1 % of Vnom Output Voltage Range User-adjustable -20 +10 % of Vnom. Overvoltage Protection Via magnetic feedback 18 19 20 Vdc Current Output Current Range 0.0 2.0 2.0 A Minimum Load No minimum load Current Limit Inception 98% of Vnom., after warmup 2.45 3.0 3.45 A Short Circuit Hiccup technique, autorecovery within ±1.25% Short Circuit Current 0.6 A of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation ➅ Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.125 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.125 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 115 125 mV pk-pk Temperature Coefficient At all outputs ±0.02 % of Vout./°C Maximum Capacitive Loading Low ESR, resistive load only 0 2200 μF MECHANICAL (Through Hole Models) Conditions ➀ ➂ Outline Dimensions 1.30x0.90x0.36 Inches (Please refer to outline drawing) LxWxH 33.02x22.86x9.144 mm Weight 0.58 Ounces 16.4 Grams Through Hole Pin Diameter 0.04 & 0.062 Inches 1.016 & 1.575 mm Through Hole Pin Material Copper alloy TH Pin Plating Metal and Thickness Nickel subplate 50 µ-inches Gold overplate 5 µ-inches ENVIRONMENTAL Operating Ambient Temperature Range With Derating -40 85 °C Operating Case Temperature Range No derating, full power -40 105 °C Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 115 125 130 °C Electromagnetic Interference External filter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class Relative humidity, non-condensing To +85°C 10 90 %RH Altitude must derate -1%/1000 feet -500 10,000 feet -152 3048 meters RoHS rating ➃ RoHS-6 Performance Specification Notes ➀ Unless otherwise noted, all specifications are typical at nominal input voltage, nominal output voltage ➂ All models are stable and regulate to specification under no load. and full load. General conditions are +25° Celsius ambient temperature, near sea level altitude, ➃ Reduction of Hazardous Substances (RoHS) compliance is to RoHS-6 (six substances restricted natural convection airflow. All models are tested and specified with external parallel 1 μF and 10 μF including lead). See specifications. multi-layer ceramic output capacitors. The external input capacitor is 22 μF ceramic. All capacitors ➄ The Remote On/Off Control is referred to -Vin. are low-ESR types wired close to the converter. These capacitors are necessary for our test equip- ➅ Regulation specifications describe the output voltage changes as the line voltage or load current is ment and may not be needed in the user's application. varied from its nominal or midpoint value to either extreme. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus = 220 μF/100V, Cin = 33 μF/100V and Lbus = 12 μH. www.murata-ps.com/support MDC_ULS-30W_C09 Page 18 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TYPICAL PERFORMANCE CURVES, ULS-15/2-D48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Load Current @ 25°C 91 3.5 89 3.0 87 2.5 85 VIN = 75V 83 2.0 VIN = 60V VIN = 75V 81 VIN = 48V VIN = 60V 1.5 VIN = 36V VIN = 48V 79 VIN = 36V 1.0 77 0.5 75 0.2 0.4 0.6 0.7 0.9 1.1 1.3 1.5 1.6 1.8 2.0 0.21 0.39 0.57 0.75 0.93 1.11 1.29 1.47 1.65 1.83 2.01 Load Current (Amps) Load Current (Amps) Maximum Current Temperature Derating at Sea Level (Vin = 36V, 48V, 60V, and 75V, airflow is from pin 3 to pin 1) 2.5 2.0 0.33 to 2.0 m/s (65 to 400 LFM) 1.5 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) INFRARED THERMAL IMAGE, ULS-15/2-D48 Thermal image with hot spot at full load current with 25 °C ambient temperature. Natural convention is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q6 max Temp=120 °C/IPC9592 guidelines. 80.6°C 80 (+Vin) (+Vout) 70 T1: 62 60 Q6: 75 R6: 73 50 (-Vin) (-Vout) 45.7°C www.murata-ps.com/support MDC_ULS-30W_C09 Page 19 of 30 Efficiency (%) Output Current (Amps) Loss (Watts) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters OSCILLOGRAMS, ULS-15/2-D48 On/Off Enable Delay (Vin = 48V, Vout = nom., Iout = 2A, Cload = 0 µF, Ta = +25°C., Power On Startup Delay (Vin = 48V, Vout = nom., Iout = 2A, Cload = 0 µF, Ta = +25°C., ScopeBW = 20MHz) Trace 1 = Enable, Trace 4 = Vout ScopeBW = 20MHz) Trace 1 = Vin, Trace 4 = Vout Step Load Transient Response (Vin = 48V, Vout = nom., Iout = 50-75-50% of full load, Output Ripple and Noise (Vin = 48V, Vout = nom., Iout = no load, Cload = 1 µF ceramic || Cload = 1 µF ceramic || 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) Output Ripple and Noise (Vin = 48V, Vout = nom., Iout = 2A, Cload = 1 µF ceramic || 10µF tantalum, Ta = +25°C., ScopeBW = 20MHz) www.murata-ps.com/support MDC_ULS-30W_C09 Page 20 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters MECHANICAL SPECIFICATIONS, THROUGH-HOLE MOUNT SIDE VIEW END VIEW 0.36 (9.144) 0.18 (4.572) 00.060 @ MATERIAL: 0.010 MIN PINS 4 & 8 .040 PINS: COPPER ALLOY CLEARANCE .062 PINS: COPPER ALLOY FINISH: (ALL PINS) 0.040 @ GOLD (5u"MIN) OVER NICKEL (50u" MIN) PINS 1-3, 5-7 BOTTOM PIN VIEW PIN #3 1.30 PIN (33.02) #8 1.100 PIN (27.94) #4 ISOMETRIC VIEW 3 4 INPUT/OUTPUT CONNECTIONS P75 5* 0.300 Pin Function Pin Function 0.150 (7.62) 0.90 (3.81) 6 C 3 -Vin 4 -Vout (22.86) 0.150 L 2 (3.81) 0.300 5 (-)Sense 7* (7.62) 2 On/Off Control 6 Trim 8 1 7 (+)Sense 1 +Vin 8 +Vout 0.550 *Sense is included on the ULS-3.3/8-D48 and (13.97) ULS-5/6-D48 only. C L The 0.18-inch pin length is shown. Please refer to the part number structure for alternate pin lengths. Pin material: Copper alloy. Plating: Gold over nickel Recommended Footprint (View Through Converter) Please note that some competitive units may use differ- FINISHED HOLE SIZES Top View ent pin numbering or alternate outline views; however, all @ PINS 1-3, 5-7 (PER IPC-D-275, LEVEL C) units are plugin-compatible. (PRI) (SEC) .048-.062 1.100 It is recommended that no parts be placed beneath (27.94) 0.150 the converter. (3.80) 8 1 0.46 Dimensions are in inches (mm shown for ref. only). 0.300 7* (11.7) (7.62) 2 0.92 6 C C L L (23.4) Third Angle Projection 0.300 5* (7.62) 3 4 0.150 (3.80) 0.55 0.100 MIN (14.0) ANNULAR RING C Tolerances (unless otherwise specified): L FINISHED HOLE SIZES FOR ALL PIN @ PINS 4 & 8 .XX ± 0.02 (0.5) SHOULDERS 1.32 (PER IPC-D-275, LEVEL C) .XXX ± 0.010 (0.25) (33.5) .070-.084 Angles ± 2˚ Components are shown for reference only. It is recommended that no parts be placed beneath converter www.murata-ps.com/support MDC_ULS-30W_C09 Page 21 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters MECHANICAL SPECIFICATIONS, SURFACE MOUNT (MSL RATING 2) SIDE VIEW END VIEW 0.36 .36 (9.144) 0.010 MIN 0.062 TYP CLEARANCE MATERIAL: (ALL PINS) 0.125 SMT CONTACTS: COPPER ALLOY REF FINISH: (ALL PINS) GOLD (5u"MIN) OVER NICKEL (50u" MIN) BOTTOM PIN VIEW 1.30 (33.02) 1.100 (27.94) PIN 3 4 #8 0.300 5* (7.62) 0.150 0.90 PIN (3.81) 6 (22.86) C 0.150 #4 L ISOMETRIC VIEW 2 0.300 (3.81) (7.62) 7* 8 1 INPUT/OUTPUT CONNECTIONS P75 Pin Function Pin Function 0.550 (13.97) 3 -Vin 4 -Vout 5 (-)Sense C L 2 On/Off Control 6 Trim 7 (+)Sense 1 +Vin 8 +Vout Recommended Footprint Please note that some competitive units may use (View Through Converter) different pin numbering or alternate outline views; Top View however, all units are plugin-compatible. (PRI) (SEC) It is recommended that no parts be placed 1.100 beneath the converter. (27.94) 0.150 (3.80) Sense is included on the ULS-3.3/8-D48 and 8 1 ULS-5/6-D48 only. 0.46 7* 0.300 (11.7) (7.62) 2 0.92 6 C C L L Dimensions are in inches (mm shown for ref. only). (23.4) 0.300 5* (7.62) Third Angle Projection 3 4 0.150 (3.80) 0.55 (14.0) 0.070 MIN PAD C L (6 or 8 PLS 1.32 Tolerances (unless otherwise specified): AS REQUIRED) (33.5) .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. It is recommended that no parts be placed beneath converter www.murata-ps.com/support MDC_ULS-30W_C09 Page 22 of 30 R0.31 (8.00) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters SHIPPING TRAYS AND BOXES, THROUGH-HOLE MOUNT 4.50 (114.3) ±.25 Closed height 32 units per tray 11.00 (279.4) ±.25 10.50 (266.7) ±.25 4 trays per box Each static dissipative polyethylene foam tray accommodates 32 converters in a 4 x 8 array. SHIPPING TRAY DIMENSIONS Material: Low density, closed cell polyethylene anti-static foam 9.84 0.87 (250.00) (22.00) 0.59 4-C 0.26 (15.00) (6.5) Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Components are shown for reference only. 0.51 1.34 1.97 0.31 (13.00) (34.00) (50.00) (8.00) www.murata-ps.com/support MDC_ULS-30W_C09 Page 23 of 30 9.84 (250.00) 0.47 (12.00) 0.91 0.24 (23.00) (6.00) ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TAPE AND REEL INFORMATION (MSL RATING 2) Feed (Unwind) Direction ---- 0.14 (3.556) 0.069 Pin #1 Round Holes (1.75) 0.85 (21.59) 1.732 (44.00) 1.26 Oblong Holes (32.0) 0.354 (9.00) MAX PITCH PICKUP NOZZLE Top Cover Tape 13.00 (330.20) TAPE AND REEL (200 UNITS PER REEL) 4.00 .512 (101.60) (13.00) 1.73 CORE (44.0) REF Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Components are shown for reference only. www.murata-ps.com/support MDC_ULS-30W_C09 Page 24 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters TECHNICAL NOTES Input Fusing I/O Filtering, Input Ripple Current, and Output Noise Certain applications and/or safety agencies may require the installation of All models in the ULS Series are tested/specified for input reflected ripple fuses at the inputs of power conversion components. Fuses should also be current and output noise using the specified external input/output components/ used if the possibility of sustained, non-current-limited, input-voltage polarity circuits and layout as shown in the following two figures. External input capaci- reversals exists. For DATEL ULS series DC/DC converters, we recommend the tors (CIN in Figure 2) serve primarily as energy-storage elements, minimiz- use of a fast blow fuse, installed in the ungrounded input supply line with a ing line voltage variations caused by transient IR drops in conductors from typical value about twice the maximum input current, calculated at low line backplane to the DC/DC. Input caps should be selected for bulk capacitance with the converter’s minimum efficiency. (at appropriate frequencies), low ESR, and high rms-ripple-current ratings. The switching nature of DC/DC converters requires that dc voltage sources have All relevant national and international safety standards and regulations must low ac impedance as highly inductive source impedance can affect system sta- be observed by the installer. For system safety agency approvals, the convert- bility. In Figure 2, CBUS and LBUS simulate a typical dc voltage bus. Your specific ers must be installed in compliance with the requirements of the end- use system configuration may necessitate additional considerations. safety standard, i.e. IEC/EN/UL60950-1. TO Input Reverse-Polarity Protection CURRENT OSCILLOSCOPE PROBE If the input voltage polarity is accidentally reversed, an internal diode will +VIN become forward biased and likely draw excessive current from the power LBUS source. If this source is not current limited or the circuit appropriately fused, it + could cause permanent damage to the converter. VIN CBUS CIN – Input Under-Voltage Shutdown and Start-Up Threshold –VIN Under normal start-up conditions, devices will not begin to regulate properly until the ramping-up input voltage exceeds the Start-Up Threshold Voltage. CIN = 33µF, ESR < 700mΩ @ 100kHz CBUS = 220µF, ESR < 100mΩ @ 100kHz Once operating, devices will not turn off until the input voltage drops below the LBUS = 12µH Under-Voltage Shutdown limit. Subsequent re-start will not occur until the input is brought back up to the Start-Up Threshold. This built in hysteresis prevents Figure 2. Measuring Input Ripple Current any unstable on/off situations from occurring at a single input voltage. In critical applications, output ripple/noise (also referred to as periodic and Start-Up Time random deviations or PARD) may be reduced below specified limits using filter- ing techniques, the simplest of which is the installation of additional external The VIN to VOUT Start-Up Time is the time interval between the point at which output capacitors. They function as true filter elements and should be selected the ramping input voltage crosses the Start-Up Threshold and the fully loaded for bulk capacitance, low ESR and appropriate frequency response. output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capaci- All external capacitors should have appropriate voltage ratings and be tance, and the slew rate and final value of the input voltage as it appears at the located as close to the converter as possible. Temperature variations for all converter. The ULS Series implements a soft start circuit to limit the duty cycle relevant parameters should also be taken carefully into consideration. The most of its PWM controller at power up, thereby limiting the input inrush current. effective combination of external I/O capacitors will be a function of line voltage and source impedance, as well as particular load and layout conditions. The On/Off Control to VOUT start-up time assumes the converter has its nominal input voltage applied but is turned off via the On/Off Control pin. The Floating Outputs specification defines the interval between the point at which the converter is Since these are isolated DC/DC converters, their outputs are “floating” with turned on (released) and the fully loaded output voltage enters and remains respect to their input. Designers will normally use the –Output as the ground/ within its specified accuracy band. Similar to the VIN to VOUT start-up, the On/Off return of the load circuit. You can however, use the +Output as ground/return to Control to VOUT start-up time is also governed by the internal soft start circuitry effectively reverse the output polarity. and external load capacitance. The difference in start up time from VIN to VOUT and from On/Off Control to VOUT is therefore insignificant. Minimum Output Loading Requirements ULS converters employ a synchronous-rectifier design topology and all models Input Source Impedance regulate within spec and are stable under no-load to full load conditions. The input of ULS converters must be driven from a low ac-impedance source. Operation under no-load conditions however might slightly increase the output The DC/DC’s performance and stability can be compromised by the use of ripple and noise. highly inductive source impedances. The input circuit shown in Figure 2 is a practical solution that can be used to minimize the effects of inductance in the input traces. For optimum performance, components should be mounted close to the DC/DC converter. www.murata-ps.com/support MDC_ULS-30W_C09 Page 25 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters Short Circuit Condition When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low, the mag- +VOUT netically coupled voltage used to develop primary side voltages will also drop, thereby shutting down the PWM controller. Following a time-out period, the RLOAD SCOPE C1 C2 PWM will restart causing the output voltage to begin ramping to their appropri- ate value. If the short-circuit condition persists, another shutdown cycle will be –VOUT initiated. This on/off cycling is referred to as “hiccup” mode. The hiccup cycling reduces the average output current, thereby preventing internal temperatures from rising to excessive levels. The ULS Series is capable of enduring an C1 = 1µF indefinite short circuit output condition. C2 = 10µF LOAD 2-3 INCHES (51-76mm) FROM MODULE On/Off Control Figure 3. Measuring Output Ripple/Noise (PARD) The input-side, remote On/Off Control function can be ordered to operate with either logic type: Thermal Shutdown The ULS converters are equipped with thermal-shutdown circuitry. If environ- Positive ("P" suffix) logic models are enabled when the on/off pin is mental conditions cause the temperature of the DC/DC converter to rise above left open (or is pulled high, applying +10V to +15V with respect to –Input). the designed operating temperature, a precision temperature sensor will power Positive-logic devices are disabled when the on/off pin is pulled low (0 to 0.7V down the unit. When the internal temperature decreases below the threshold with respect to –Input). of the temperature sensor, the unit will self start. See Performance/Functional Negative (“N” suffix) logic devices are off when pin is left open (or pulled Specifications. high, applying +2.5V to +15V), and on when pin is pulled low (-0.1 to 0.8V) Output Over-Voltage Protection with respect to –Input as shown in Figure 4. The ULS output voltage is monitored for an over-voltage condition using a com- Dynamic control of the remote on/off function is best accomplished with a parator. The signal is optically coupled to the primary side and if the output volt- mechanical relay or an open-collector/open-drain drive circuit (optically isolated age rises to a level which could be damaging to the load, the sensing circuitry if appropriate). The drive circuit should be able to sink appropriate current (see will power down the PWM controller causing the output voltage to decrease. Performance Specifications) when activated and withstand appropriate voltage Following a time-out period the PWM will restart, causing the output voltage when deactivated. Applying an external voltage to pin 2 when no input power is to ramp to its appropriate value. If the fault condition persists, and the output applied to the converter can cause permanent damage to the converter. voltage again climbs to excessive levels, the over-voltage circuitry will initiate another shutdown cycle. This on/off cycling is referred to as “hiccup” mode. +VIN +Vcc Current Limiting 13V CIRCUIT As soon as the output current increases to approximately 130% of its rated value, the DC/DC converter will go into a current-limiting mode. In this condi- O N /O F F tion, the output voltage will decrease proportionately with increases in output C O N TR O L 5V CIRCUIT current, thereby maintaining somewhat constant power dissipation. This is commonly referred to as power limiting. Current limit inception is defined as the point at which the full-power output voltage falls below the specified –VIN tolerance. See Performance/Functional Specifications. If the load current, being drawn from the converter, is significant enough, the unit will go into a short Figure 4. Driving the Negative Logic On/Off Control Pin (simplified circuit) circuit condition as described below. +VOUT +VOUT –VIN –VIN RTRIM DOWN ON/OFF ON/OFF TRIM LOAD TRIM LOAD CONTROL CONTROL RTRIM UP +VIN +VIN –VOUT –VOUT Figure 5. Trim Connections To Increase Output Voltages. Figure 6. Trim Connections To Decrease Output Voltages. If units have sense pins, Connect trim to + Sense pin. If units have sense pins, connect Trim to (-) Sense pins. www.murata-ps.com/support MDC_ULS-30W_C09 Page 26 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters Remote Sense (ULS-3.3/8-D48 and ULS-5/6-D48 models only) Note: The Sense and VOUT lines are internally connected through low-value Trim Equations resistors. Nevertheless, if the sense function is not used for remote regula- tion the user should connect the +Sense to +VOUT and –Sense to –VOUT at Trim Down the DC/DC converter pins. ULS series converters employ a sense feature to 511 RT (kΩ) = – 10.22 provide point of use regulation, thereby overcoming moderate IR drops in PCB DOWN Δ% conductors or cabling. The remote sense lines carry very little current and VNOM – VDES Where Δ% = |( × 100 )| therefore require minimal cross-sectional-area conductors. The sense lines, VNOM which are capacitively coupled to their respective output lines, are used by the feedback control-loop to regulate the output. As such, they are not low Trim Up impedance points and must be treated with care in layouts and cabling. Sense lines on a PCB should be run adjacent to dc signals, preferably ground. 5.11 × VNOM × (100 + Δ%) 511 – – 10.22 RT (kΩ) = UP 1.225 × Δ% Δ% [VOUT(+)-VOUT(–)] – [Sense(+)-Sense(–)] ≤ 10%VOUT In cables and discrete wiring applications, twisted pair or other techniques Note: “Δ%” is always a positive value. should be used. Output over-voltage protection is monitored at the output volt- “VNOM” is the nominal, rated output voltage. “VDES” is the desired, changed output voltage. age pin, not the Sense pin. Therefore, excessive voltage differences between VOUT and Sense in conjunction with trim adjustment of the output voltage can cause the over-voltage protection circuitry to activate (see Performance Speci- fications for over-voltage limits). Power derating is based on maximum output current and voltage at the converter’s output pins. Use of trim and sense func- tions can cause output voltages to increase, thereby increasing output power beyond the converter’s specified rating, or cause output voltages to climb into the output over-voltage region. Therefore, the designer must ensure: (VOUT at pins) x (IOUT) ≤ rated output power Contact and PCB resistance losses due to IR drops +VOUT +VIN IOUT +SENSE Sense Current ON/OFF TRIM LOAD CONTROL Sense Return –SENSE IOUT Return –VIN –VOUT Contact and PCB resistance losses due to IR drops Figure 7. Remote Sense Circuit Configuration www.murata-ps.com/support MDC_ULS-30W_C09 Page 27 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters Trimming by Using an External Voltage Source 1. The easiest way to trim the output using an external voltage source is to +VOUT +VIN drive the Trim pin directly from a variable source. The following equation can External be used to calculate the voltage at the Trim pin. +SENSE source + Vo ON/OFF TRIM LOAD − 1.24 Vtrim = 2 x 1.24 x – CONTROL Vonominal –SENSE Vo is the output voltage you want; Vonominal is the nominal output voltage; Vtrim is the voltage that should appear at the trim pin. –VIN –VOUT 2. If the purpose of trimming is to compensate voltage drop of power path from converter to the Load, you may separately connect the sense pin directly Figure 8. Trimming with an external source to the load. It’s much easier than real time adjusting trim voltage. 3. CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the maximum output voltage OR the maximum output power when setting the trim. If the output voltage is excessive, the OVP circuit may shut down the converter. If the maximum power is exceeded, the converter may enter current limiting. If the power is exceeded for an extended period, the converter may overheat and encounter overtemperature shut down. Be careful of external electrical noise. The Trim input is a sensitive input to the converter’s feedback control loop. Excessive electrical noise may cause instability or oscillation. Through-hole Soldering Guidelines SMT Reflow Soldering Guidelines Murata Power Solutions recommends the TH soldering specifications below when install- The surface-mount reflow solder profile shown below is suitable for SAC305 type lead- ing these converters. These specifications vary depending on the solder type. Exceeding free solders. This graph should be used only as a guideline. Many other factors influence these specifications may cause damage to the product. Your production environment may the success of SMT reflow soldering. Since your production environment may differ, please thoroughly review these guidelines with your process engineers. differ; therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: Maximum Preheat Temperature 115° C. Maximum Pot Temperature 270° C. Maximum Solder Dwell Time 7 seconds For Sn/Pb based solders: Maximum Preheat Temperature 105° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 6 seconds www.murata-ps.com/support MDC_ULS-30W_C09 Page 28 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters Emissions Performance [4] Conducted Emissions Test Results Murata Power Solutions measures its products for radio frequency emissions against the EN 55022 and CISPR 22 standards. Passive resistance loads are employed and the output is set to the maximum voltage. If you set up your own emissions testing, make sure the output load is rated at continuous power while doing the tests. The recommended external input and output capacitors (if required) are included. Please refer to the fundamental switching frequency. All of this information is listed in the Product Specifications. An external discrete filter is installed and the circuit diagram is shown below. Test Card Resistive Load C4 L2 UUT V+ DC Source Resistive Load inside a metal Black Vin+ Vout+ C1 C2 C3 C6 container L1 Graph 1. ULS-3.3/8-D48N-C conducted emissions performance, Peak Detection Mode, CISPR/EN55022, Class B, full load at 48Vin V- Vin- Vout- C5 Figure 9. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Reference Part Number Description Vendor L1 PE-62913 1mH, 6A Pulse L2 NC 4.7uH, 3.6A Murata Ceramic Capacitor C1, C2 VZ Series (3.2uf) = 2.2ufd/1ufd in Panasonic parallel, 100V Qty 2 - Electrolytic Capacitor C3 VZ Series Panasonic 22ufd, 100V C4, C5 Unknown 3.3nF, 1500V Unknown Electrolytic Capacitor 33ufd, C6 VZ Series Panasonic 100V Graph 2. ULS-12/2.5-D48N-C conducted emissions performance, Peak Detection Mode, [2] Conducted Emissions Test Equipment Used CISPR/EN55022, Class B, full load at 48Vin Rohde & Schwarz EMI Test Receiver (9KHz – 1000MHz) ESPC Rohde & Schwarz Software ESPC-1 Ver. 2.20 HP11947A Transient Limiter (Agilent) OHMITE 25W – Resistor combinations DC Source Programmable DC Power Supply Model 62012P-100-50 [3] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter components and/or shielding. Emissions performance will depend on the user’s PC board layout, the chassis shielding environment and choice of external components. Please refer to Application Note GEAN-02 for further discussion. Since many factors affect both the amplitude and spectra of emissions, we recommend using an engineer who is experienced at emissions suppression. Graph 3. ULS-15/2-D48P-C conducted emissions performance, Peak Detection Mode, CISPR/EN55022, Class B, full load at 48Vin www.murata-ps.com/support MDC_ULS-30W_C09 Page 29 of 30 ULS 30-Watt Series Sixteenth-brick DOSA-Compatible, Isolated DC/DC Converters Vertical Wind Tunnel Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and heat dissipation analysis of power products. IR Transparent The system includes a precision low flow-rate anemometer, optical window Variable variable speed fan, power supply input and load controls, Unit under speed fan temperature gauges, and adjustable heating element. test (UUT) The IR camera monitors the thermal performance of the IR Video Unit Under Test (UUT) under static steady-state conditions. A Camera special optical port is used which is transparent to infrared wavelengths. Both through-hole and surface mount converters are soldered down to a host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse Heating airflow studies are possible by rotation of this carrier board element since there are often significant differences in the heat Precision dissipation in the two airflow directions. The combination of low-rate adjustable airflow, adjustable ambient heat, and adjustable anemometer Input/Output currents and voltages mean that a very wide 3” below UUT range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent Ambient to the UUT by minimizing airflow turbulence. Such turbu- temperature lence influences the effective heat transfer characteristics sensor and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly Airflow causing uneven overheating. collimator Both sides of the UUT are studied since there are different thermal gradients on each side. The adjustable heating element and fan, built-in temperature gauges, and no-contact IR camera mean Figure 10. Vertical Wind Tunnel that power supplies are tested in real-world conditions. This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 129 Flanders Road, Westborough, MA 01581 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 14001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2018 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_ULS-30W_C09 Page 30 of 30