MURATA POWER SOLUTIONS SPM25-050-D48-C

MURATA www.murata-ps.com SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters Output (V) Current (A) Nominal Input (V) 3.3 7.575 Typical unit 55 D48 = 36-75V (48V nom) 12 2.1 FEATURES PRODUCT OVERVIEW  2:1 Input voltage range ( D48 = 36-75V) The SPM25 series isolated DC-DC converters where isolated output voltages are required. These represent the next generation in Industrial Potted converters offer a feature/option set including:  1˝ x 1˝ x 0.41˝ dimensions. Module Technology. Featuring a full 25-Watt output through-hole mounting, positive or negative logic  Adjustable Vout (+10% to -10%) in one square inch of board area, the SPM25 (remote on/off), over-current & over-temperature  High effi ciency series isolated DC-DC converter family offers protection, under-voltage lockout. The input voltage effi cient regulated DC power for printed circuit range covers the standard Industrial requirements  Positive & negative logic, remote on/off control board mounting. The 1˝ x 1˝ x 0.41˝ (25.4 x 25.4 x with a regulated output voltage and power rating option 10.41 mm) converter accepts a 2:1 input voltage up to 25W.  Monotonic startup into pre-bias output conditions range of 36 to 75 Volts (D48), ideal for industrial Modules provide voltage isolation (basic  Continuous short circuit protection applications. insulation) from input to output of up to 1600V. The  Over-temperature protection Intended target markets include transportation, Operating ambient temperature range is -40°C to  medical systems, electronic test equipment, indus- +85°C.The module delivers full output power to Over-voltage protection trial processing equipment, industrial applications +70°C with no airfl ow. These parts are ideal for  Low output ripple and noise where power modules must meet rugged envi- applications that do not require any heat sinking or  Strong thermal derating characteristics ronmental requirements, high power density, and forced air cooling.  Operational temperature range –40°C to +85°C  1600V I/O isolation  Packaged in a fi ve-sided EMI shielding metal package with non-conductive base  Certifi ed to UL 60950-1, CAN/CSA-C22.2 No. 60950-1, IEC60950-1 safety approvals, 2nd edition, with AM1 F1 +Vin (1) *TPMBUJPO +Vout (3) Barrier t
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Trim (4) MPHJD -Vin (2) -Vout (5) Figure 1. Connection Diagram Typical topology is shown. Murata Power Solutions recommends an external fuse. (pending) For full details go to www.murata-ps.com/rohs REG.-Nr. D806 www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr P operly and r age 1 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters ➀ ➂ PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input R/N (mVp-p) Regulation (Max.) IIN, Effi ciency Dimensions IOUT Total VIN IIN, no full VOUT (A, Power Nom. Range load load Root Models ➀ (V) max) (W) Typ. ➁ Max. Line Load (V) (V) (mA) (A) Min. Typ. Case (inches) Case (mm) SPM25-033-D48 3.3 7.575 25 50 80 ±0.1% ±0.2% 48 36-75 75 0.58 87% 89.5% 1.0" x 1.0" x 0.41" 25.4 x 25.4 x 10.41 SPM25-050-D48 5 5 25 50 80 ±0.1% ±0.2% 48 36-75 30 0.57 88.3% 91.0% 1.0" x 1.0" x 0.41" 25.4 x 25.4 x 10.41 SPM25-120-D48 12 2.1 25.2 65 120 ±0.1% ±0.125% 48 36-75 20 0.6 85.0% 87% 1.0" x 1.0" x 0.41" 25.4 x 25.4 x 10.41 Notes: ➀ Please refer to the part number structure for additional options and complete order- ➂ All specifi cations are at nominal line voltage and full load, +25 °C. unless otherwise ing part numbers. noted. See detailed specifi cations for full conditions. ➁ Ripple and Noise is shown at 20 MHz bandwidth. Output capacitors are 1 μF in parallel with 10 μF. The input cap is 4.7 μF (SPM25- 120-D48) and 22 μF (SPM25-033-D48, SPM25-050-D48), low ESR. PART NUMBER STRUCTURE SPM25- 050 - D48 P Lx - C Single Output Potted Module RoHS-6 Hazardous Substance Compliance 25-Watt Series (Does not claim EU RoHS exemption 7b, lead in solder) Nominal Output Voltage Pin Length Option (through-hole only) in Tenths of a Volt Blank = Std. pin length 0.15˝ (3.8mm) (033=3.3V, 050 = 5V, 120 = 12V) L1 = 0.110˝ (2.79mm)➀ On/Off Control Logic Input Voltage Range Blank = No On/Off & no Trim D48 = 36-75 Vdc P = Positive N = Negative ➀ Special quantity order is required; samples available with standard pin length only. ➁ Some model number combinations may not be available. See website or contact your local Murata sales representative. www.murata-ps.com/support MDC_SPM25.A04 Page 2 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS – MODEL SPM25-033-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 1600 Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 25.25 W Output Current Current-limited, no damage, short-circuit protected 0.7575 7.575 A 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 Specifi cations Table is not implied or recommended. INPUT 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 Internal Filter Type LC Input current Full Load Input Current Vin = nominal 0.58 0.6 A Low Line Input Current Vin = minimum 0.79 0.81 A 2 Inrush Transient 0.05 A -Sec. Short Circuit Input Current 50 100 mA No Load Input Current Iout = minimum, unit = ON 75 100 mA Shut-Down Input Current (Off, UV, OT) 1 2 mA Refl ected (back) ripple current ➁ Measured at input with specifi ed fi lter 30 mA, p-p GENERAL and SAFETY Vin = 48V, full load 87 89.5 % Effi ciency Vin = min., full load 86.5 57.5 % Isolation Isolation Voltage Input to output, continuous 1600 Vdc Insulation Safety Rating basic Isolation Resistance 10 MΩ Isolation Capacitance 1000 pF Certifi ed to UL-60950-1, CSA-C22.2 No. 60950- Safety Yes 1, IEC60950-1, 2nd edition, with AM1 Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF TBD Hours x 10 fi xed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 300 330 360 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 180 250 μSec 2% of Vout Dynamic Load Peak Deviation same as above ±30 ±100 mV FEATURES and OPTIONS Remote On/Off Control ➂ “N” suffi x Negative Logic, ON state ON = Ground pin or external voltage -0.7 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 10 15 V Control Current Open collector/drain 1 mA “P” suffi x 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 0.7 V Control Current Open collector/drain 1 mA www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr P operly and r age 3 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS (CONT.) – MODEL SPM25-033-D48 OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 0.0 25 25.25 W Voltage Nominal Output Voltage No trim 3.267 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 0.7575 7.575 7.575 A Current Limit Inception 98% of Vnom., after warmup 8 10 11.3 A Short Circuit Hiccup technique, autorecovery within Short Circuit Current 0.3 A ±1.25% of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.1 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.2 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 50 80 mV pk-pk Temperature Coeffi cient At all outputs ±0.02 % of Vnom./°C Maximum Capacitive Loading Low ESR, resistive load only 2000 μF MECHANICAL Outline Dimensions 1" x 1" x 0.41" Inches (Please refer to outline drawing) WxLxH 25.4 x 25.4 x 10.41 mm mm Weight 0.69 Ounces 19.56 Grams Through Hole Pin Diameter 0.04 Inches 1.016 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 See derating -40 85 °C Operating Case Temperature Range No derating -40 105 °C Case Material Tin plated steel with black powder coat Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 110 115 120 °C Electromagnetic Interference External fi lter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class RoHS rating RoHS-6 Notes ➀ Unless otherwise noted, all specifi cations are at nominal input voltage, nominal out- ➁ Input (back) ripple current is tested and specifi ed over 5 Hz to 20 MHz bandwidth. put voltage and full load. General conditions are +25˚ Celsius ambient temperature, Input fi ltering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. near sea level altitude, natural convection airfl ow. All models are tested and specifi ed ➂ The Remote On/Off Control is referred to -Vin. with external parallel 1 μF and 10 μF output capacitors. The external input capacitor is 22 μF. All capacitors are low-ESR types wired close to the converter. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr P operly and r age 4 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-033-D48 Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation 92 4.00 90 88 3.50 86 3.00 84 82 2.50 80 78 VIN = 36V 2.00 76 VIN = 48V 74 VIN = 60V 1.50 72 VIN = 75V 70 1.00 68 66 0.50 64 0.82 1.65 2.49 3.32 4.16 5.00 5.83 6.66 7.50 7.575 62 0.82 1.65 2.49 3.32 4.16 5.0 5.83 6.66 7.50 7.575 Output Load Current (Amps) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 36 (air fl ow from J1 to J3 on PCB) Vin = 48 (air fl ow from J1 to J3 on PCB) 8 8 7 7 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 6 6 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); Natural Convection 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 5 5 Natural Convection 4 4 3 3 2 2 1 1 0 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 (°C) Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 60 (air fl ow from J1 to J3 on PCB) Vin = 75 (air fl ow from J1 to J3 on PCB) 8 8 7 7 6 6 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) Natural Convection 5 Natural Convection 5 4 4 3 3 2 2 1 1 0 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 (°C) Ambient Temperature (°C) www.murata-ps.com/support MDC_SPM25.A04 Page 5 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Output Current (Amps) Output Current (Amps) Output Current (Amps) Output Current (Amps) Power Dissipation (Watts) MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-033-D48 Start-up Delay(Vin=48V, Iout=7.5A, Ta=+25°C) Ch1=Vin, Ch4=Vout Enable Start-up Delay(Vin=48V, Iout=7.5A, Ta=+25°C) Ch1=Enable, Ch4=Vout Output Ripple and Noise (Vin = 48V, Io = 0A, Cload = 1μF || 10μF, Ta = +25°C) Output Ripple and Noise (Vin = 48V, Io = 7.5A, Cload = 1μF || 10μF, Ta = +25°C) Step Load Transient Response(Vin=48V, Vout=nom, Iout=50 to 100% of full load, Cout=1μF || 10μF) v www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 6 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS – MODEL SPM25-050-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 1600 Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 25.25 W Output Current Current-limited, no damage, short-circuit protected 0 5 A 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 Specifi cations Table is not implied or recommended. INPUT Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 1.5 A Start-up threshold Rising input voltage 33 34 35 Vdc Undervoltage shutdown Falling input voltage 31.5 32.5 34.5 Vdc Turn-On/Turn-Off Hysteresis 1.5 Vdc Internal Filter Type LC Input current Full Load Input Current Vin = nominal 0.57 0.6 A Low Line Input Current Vin = minimum 0.76 0.79 A 2 Inrush Transient 0.05 A -Sec. Short Circuit Input Current 50 100 mA No Load Input Current Iout = minimum, unit=ON 30 50 mA Shut-Down Input Current (Off, UV, OT) 1 3 mA Refl ected (back) ripple current ➁ Measured at input with specifi ed fi lter 30 mA, p-p Pre-biased startup External output voltage < Vset Monotonic GENERAL and SAFETY Vin = 48V, full load 88.3 91 % Effi ciency Vin = min., full load 88.5 91 % Isolation Isolation Voltage Input to output, continuous 1600 Vdc Insulation Safety Rating basic Isolation Resistance 10 MΩ Isolation Capacitance 2000 pF Certifi ed to UL-60950-1, CSA-C22.2 No. 60950- Safety Yes 1, IEC60950-1, 2nd edition, with AM1 Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF 4.5 Hours x 10 fi xed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 300 330 360 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 50 100 μSec 1% of Vout Dynamic Load Peak Deviation same as above ±75 ±125 mV FEATURES and OPTIONS Remote On/Off Control ➂ “N” suffi x Negative Logic, ON state ON = Ground pin or external voltage -0.7 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 10 15 V Control Current Open collector/drain 1 mA “P” suffi x 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 0.7 V Control Current Open collector/drain 1 mA www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr P operly and r age 7 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS (CONT.) – MODEL SPM25-050-D48 OUTPUT Conditions ➀ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 0.0 25 25.25 W Voltage Nominal Output Voltage No trim 4.95 5 5.05 Vdc Setting Accuracy At 50% load, no trim -1 1 % of Vset Output Voltage Range User-adjustable -10 10 % of Vnom Overvoltage Protection Via magnetic feedback 6 6.5 7.5 Vdc Current Output Current Range 055 A Minimum Load No minimum load % of Iout Current Limit Inception 98% of Vnom., after warmup 5.3 7.05 8.3 A Short Circuit Hiccup technique, autorecovery within Short Circuit Current 0.3 A ±1.25% of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.1 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.2 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 50 80 mV pk-pk Temperature Coeffi cient At all outputs ±0.02 % of Vnom./°C Maximum Capacitive Loading Low ESR, resistive load only 2000 μF MECHANICAL Outline Dimensions 1" x 1" x 0.41" Inches (Please refer to outline drawing) WxLxH 25.4 x 25.4 x 10.41 mm mm Weight 0.69 Ounces 19.56 Grams Through Hole Pin Diameter 0.04 Inches 1.016 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 See derating -40 85 °C Operating Case Temperature Range No derating -40 105 °C Case Material Tin plated steel with black powder coat Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 110 115 120 °C Electromagnetic Interference External fi lter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class RoHS rating RoHS-6 ESD (Electrostatic Discharge) Designed to meet EN61000-4-2 Perf. Criteria A Notes ➀ Unless otherwise noted, all specifi cations are at nominal input voltage, nominal out- ➁ Input (back) ripple current is tested and specifi ed over 5 Hz to 20 MHz bandwidth. put voltage and full load. General conditions are +25˚ Celsius ambient temperature, Input fi ltering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. near sea level altitude, natural convection airfl ow. All models are tested and specifi ed ➂ The Remote On/Off Control is referred to -Vin. with external parallel 1 μF and 10 μF output capacitors. The external input capacitor is 22 μF. All capacitors are low-ESR types wired close to the converter. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr P operly and r age 8 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-050-D48 Effi ciency vs. Line Voltage and Load Current @ 25°C 92 88 84 VIN = 36V 80 VIN = 48V VIN = 60V 76 VIN = 75V 72 68 64 60 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Load Current (Amps) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 36 (air fl ow from J1 to J2 on PCB) Vin = 48 (air fl ow from J1 to J2 on PCB) 6 6 5 5 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 4 4 Natural Convection Natural Convection 3 3 2 2 1 1 0 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 (°C) Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 60 (air fl ow from J1 to J2 on PCB) Vin = 75 (air fl ow from J1 to J2 on PCB) 6 6 5 5 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 4 4 Natural Convection Natural Convection 3 3 2 2 1 1 0 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 (°C) Ambient Temperature (°C) www.murata-ps.com/support MDC_SPM25.A04 Page 9 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Output Current (Amps) Output Current (Amps) Efficiency (%) Output Current (Amps) Output Current (Amps) MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-050-D48 Start-up Delay (Vin = 48V, Iout = 5A, Ta = +25°C) Ch1 = Vin, Ch4 = Vout Enable Start-up Delay (Vin = 48V, Iout = 5A, Ta = +25°C) Ch1 = Enable, Ch4 = Vout Output Ripple and Noise (Vin = 48V, Io = 5A, Cload = 1μF || 10μF, Ta = +25°C) Step Load Transient Response (Vin = 48V, Vout = nom, Iout = 100 to 50% of full load 1μF || 10μF) www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 10 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS – MODEL SPM25-120-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 1600 Vdc On/Off Remote Control Power on, referred to -Vin 0 15 Vdc Output Power 0 25.45 W Output Current Current-limited, no damage, short-circuit protected 0 5 A 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 Specifi cations Table is not implied or recommended. INPUT Operating voltage range 36 48 75 Vdc Recommended External Fuse Fast blow 1.5 A Start-up threshold Rising input voltage 32.8 34 35 Vdc Undervoltage shutdown Falling input voltage 32 33.5 35 Vdc Turn-On/Turn-Off Hysteresis 1.5 Vdc Internal Filter Type C Input current Full Load Input Current Vin = nominal 0.603 0.624 A Low Line Input Current Vin = minimum 0.809 0.842 A 2 Inrush Transient 0.05 A -Sec. Short Circuit Input Current 50 100 mA No Load Input Current Iout = minimum, unit=ON 20 35 mA Shut-Down Input Current (Off, UV, OT) 1 2 mA Refl ected (back) ripple current ➁ Measured at input with specifi ed fi lter 30 mA, p-p Pre-biased startup External output voltage < Vset Monotonic GENERAL and SAFETY Vin = 48V, full load 85 87 % Effi ciency Vin = min., full load 86.5 % Isolation Isolation Voltage Input to output, continuous 1600 Vdc Insulation Safety Rating basic Isolation Resistance 10 MΩ Isolation Capacitance 1700 pF Certifi ed to UL-60950-1, CSA-C22.2 No. 60950- Safety Yes 1, IEC60950-1, 2nd edition, with AM1 Per Telcordia SR332, issue 1, class 3, ground 6 Calculated MTBF 5.9 Hours x 10 fi xed, Tambient = +25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 295 325 355 KHz Startup Time Power on to Vout regulated 10 50 mS Startup Time Remote ON to Vout regulated 10 50 mS 50-75-50% load step, settling time to within Dynamic Load Response 100 150 μSec 1% of Vout Dynamic Load Peak Deviation same as above ±250 ±350 mV FEATURES and OPTIONS Remote On/Off Control ➂ “N” suffi x Negative Logic, ON state ON = Ground pin or external voltage -0.7 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 10 15 V Control Current Open collector/drain 1 mA “P” suffi x 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 0.7 V Control Current Open collector/drain 1 mA www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr Paoperly and r ge 11 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters FUNCTIONAL SPECIFICATIONS (CONT.) – MODEL SPM25-120-D48 OUTPUT Conditions ➀ ➂ Minimum Typical/Nominal Maximum Units Total Output Power See Derating 0.0 25.2 25.45 W Voltage Nominal Output Voltage No trim 11.88 12 12.12 Vdc Setting Accuracy At 50% load, no trim -1 1 % of Vset Output Voltage Range User-adjustable -10 10 % of Vnom Overvoltage Protection Via magnetic feedback 14 19 22 Vdc Current Output Current Range 0 2.1 2.1 A Minimum Load No minimum load % of Iout Current Limit Inception 98% of Vnom., after warmup 2.3 3 3.4 A Short Circuit Hiccup technique, autorecovery within Short Circuit Current 0.1 A ±1.25% of Vout Short Circuit Duration (remove short for Output shorted to ground, no damage Continuous recovery) Short circuit protection method Current limiting Regulation Line Regulation Vin = min. to max., Vout = nom., Iout = nom. ±0.1 % of Vout Load Regulation Iout = min. to max., Vin = 48V ±0.125 % of Vout Ripple and Noise 5 Hz- 20 MHz BW 65 120 mV pk-pk Temperature Coeffi cient At all outputs ±0.02 % of Vnom./°C Maximum Capacitive Loading Low ESR, resistive load only 470 μF MECHANICAL Outline Dimensions 1" x 1" x 0.41" Inches (Please refer to outline drawing) WxLxH 25.4 x 25.4 x 10.41 mm mm Weight 0.69 Ounces 19.56 Grams Through Hole Pin Diameter 0.04 Inches 1.016 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 See derating -40 85 °C Operating Case Temperature Range No derating -40 105 °C Case Material Tin plated steel with black powder coat Storage Temperature Vin = Zero (no power) -55 125 °C Thermal Protection/Shutdown Measured in center 110 115 120 °C Electromagnetic Interference External fi lter is required Conducted, EN55022/CISPR22 B Class Radiated, EN55022/CISPR22 B Class RoHS rating RoHS-6 Notes ➀ Unless otherwise noted, all specifi cations are at nominal input voltage, nominal out- ➁ Input (back) ripple current is tested and specifi ed over 5 Hz to 20 MHz bandwidth. put voltage and full load. General conditions are +25˚ Celsius ambient temperature, Input fi ltering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. near sea level altitude, natural convection airfl ow. All models are tested and specifi ed ➂ The Remote On/Off Control is referred to -Vin. with external parallel 1 μF and 10 μF output capacitors. The external input capacitor is 4.7 μF. All capacitors are low-ESR types wired close to the converter. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensur MDC_SPM25.A04 e a product will work pr Paoperly and r ge 12 of 20 eliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-120-D48 Effi ciency vs. Line Voltage and Load Current @ 25°C Power Dissipation 4.40 88 86 3.90 84 3.40 82 2.90 VIN = 36V 80 VIN = 48V 2.40 VIN = 36V VIN = 60V 78 VIN = 48V VIN = 75V 1.90 76 VIN = 60V 1.40 VIN = 75V 74 0.90 72 70 0.40 0.18 0.37 0.56 0.75 0.94 1.13 1.32 1.51 1.70 1.89 2.1 0.2 0.4 0.6 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 Load Current (Amps) Output Load Current (Amps) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 36 (air fl ow from J1 to J2 on PCB) Vin = 48 (air fl ow from J1 to J2 on PCB) 3 3 2 2 1.0 m/s (200 LFM); 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 0.5 m/s (100 LFM) Natural Convection Natural Convection 1 1 0 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 (°C) Ambient Temperature (°C) Maximum Current Temperature Derating at sea level Maximum Current Temperature Derating at sea level Vin = 60 (air fl ow from J1 to J2 on PCB) Vin = 75 (air fl ow from J1 to J2 on PCB) 3 3 2 2 1.0 m/s (200 LFM); 0.5 m/s (100 LFM); 1.0 m/s (200 LFM); 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 1.5 m/s (300 LFM); 2.0 m/s (400 LFM) 0.5 m/s (100 LFM) Natural Convection Natural Convection 1 1 0 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 (°C) Ambient Temperature (°C) www.murata-ps.com/support MDC_SPM25.A04 Page 13 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Output Current (Amps) Output Current (Amps) Efficiency (%) Output Current (Amps) Output Current (Amps) Power Dissipation (Watts) MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters TYPICAL PERFORMANCE DATA, SPM25-120-D48 Start-up Delay (Vin = 48V, Iout = 2.1A, Ta = +25°C) Ch1 = Vin, Ch4 = Vout Enable Start-up Delay (Vin = 48V, Iout = 2.1A, Ta = +25°C) Ch1 = Enable, Ch4 = Vout Output Ripple and Noise (Vin = 48V, Io = 2.1A, Cload = 1μF || 10μF, Ta = +25°C) Step Load Transient Response (Vin = 48V, Vout = nom, Iout = 100 to 50% of full load 1μF || 10μF) www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 14 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters MECHANICAL SPECIFICATIONS BOTTOM VIEW SIDE VIEW 0.800 0.41 (20.32) (10.41) 3 1 0.800 4 1.00 (25.4) 2 C L 0.500 (20.32) 0.400 0.300 (12.7) (10.16) (7.62) 6 5 0.400 (10.16) 0.02 (0.508) REF C L 0.15 4x 0.060-0.100 (3.81) x 0.015-0.025 HIGH NON-METALLIC STANDOFFS (DIMPLES) INSULATING HEADER END VIEW PIN #1 ISOMETRIC VIEW 6 5 (FOR REF ONLY) 2 4 INPUT/OUTPUT CONNECTIONS PIN #1 1 INDICATOR SPM Function Pin (Single Output) 3 1 +Vin Dimensions are in inches (mm shown for ref. only). 2 -Vin TOP VIEW Third Angle Projection 3 +Vout MATERIAL: 4 Output Trim* .040 PINS: COPPER ALLOY 5 -Vout 6 On/Off Control* FINISH: (ALL PINS) * The Output Trim and On/Off Control GOLD (5μ"MIN) OVER NICKEL (50μ" MIN) pins are optional. Also, the Remote Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) On/Off can be provided with either .XXX ± 0.010 (0.25) positive (P suffi x) or negative Angles ± 1˚ (N suffi x) logic. Please see the Part Number Structure on Page 2. Components are shown for reference only. www.murata-ps.com/support MDC_SPM25.A04 Page 15 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters RECOMMENDED FOOTPRINT (VIEW THROUGH CONVERTER) TOP VIEW 0.800 (20.32) 0.400 (10.16) 65 0.100 1.02 (25.91) MIN 0.400 0.275 COURTYARD (10.16) (6.99) 2 4 0.55 0.800 C C L L (13.97) (20.32) 1 0.51 (12.95) 0.100 3 0.51 4x 0.100 'LANDING (12.95) FINISHED HOLE SIZES C L ZONES' FOR NON-METALLIC @ PINS 1 THRU 6 STANDOFFS (PER IPC-D-275, LEVEL C) 1.02 (25.91) MIN (KEEP FREE OF COMPS) 0.048-0.062 COURTYARD STANDARD PACKAGING EACH STATIC DISSIPATIVE PLASTIC TUBE HOLDS 16 CONVERTERS 21.88 0.91 (23.11) REF (555.75) REF 16 UNITS PER TUBE 6 TUBES PER CARTON 1.16 (29.46) REF www.murata-ps.com/support MDC_SPM25.A04 Page 16 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters Because of the switching nature of DC/DC converters, the input of these TECHNICAL NOTES converters must be driven from a source with both low AC impedance and Input Fusing adequate DC input regulation. Performance will degrade with increasing input Certain applications and/or safety agencies may require fuses at the inputs of inductance. Excessive input inductance may inhibit operation. The DC input power conversion components. Fuses should also be used when there is the regulation specifi es that the input voltage, once operating, must never degrade possibility of sustained input voltage reversal which is not current-limited. For below the Shut-Down Threshold under all load conditions. Be sure to use greatest safety, we recommend a fast blow fuse installed in the ungrounded adequate trace sizes and mount components close to the converter. input supply line. I/O Filtering, Input Ripple Current and Output Noise The installer must observe all relevant safety standards and regulations. For All models in this converter series are tested and specifi ed for input refl ected safety agency approvals, install the converter in compliance with the end-user ripple current and output noise using designated external input/output compo- safety standard. nents, circuits and layout as shown in the fi gures below. External input capaci- Input Under-Voltage Shutdown and Start-Up Threshold tors (CIN in the fi gure) serve primarily as energy storage elements, minimizing line voltage variations caused by transient IR drops in the input conductors. Under normal start-up conditions, converters will not begin to regulate properly Users should select input capacitors for bulk capacitance (at appropriate until the rising input voltage exceeds and remains at the Start-Up Threshold frequencies), low ESR and high RMS ripple current ratings. In the fi gure below, Voltage (see Specifi cations). Once operating, converters will not turn off until the CBUS and LBUS components simulate a typical DC voltage bus. Your specifi c the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent system confi guration may require additional considerations. Please note that the restart will not occur until the input voltage rises again above the Start-Up values of CIN, LBUS and CBUS may vary according to the specifi c converter model. Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. TO Users should be aware however of input sources near the Under-Voltage CURRENT OSCILLOSCOPE PROBE Shutdown whose voltage decays as input current is consumed (such as capacitor 1 +VIN inputs), the converter shuts off and then restarts as the external capacitor re- LBUS + charges. Such situations could oscillate. To prevent this, make sure the operating – VIN input voltage is well above the UV Shutdown voltage AT ALL TIMES. CBUS CIN + – Start-Up Delay 2 −VIN Assuming that the output current is set at the rated maximum, the Vin to Vout Start- Up Delay (see Specifi cations) is the time interval between the point when the rising CIN = 33μF, ESR < 700mΩ @ 100kHz CBUS = 220μF, ESR < 100mΩ @ 100kHz input voltage crosses the Start-Up Threshold and the fully loaded regulated output LBUS = 12μH voltage enters and remains within its specifi ed regulation band. Actual measured times will vary with input source impedance, external input capacitance, input volt- Figure 2. Measuring Input Ripple Current age slew rate and fi nal value of the input voltage as it appears at the converter. In critical applications, output ripple and noise (also referred to as periodic These converters include a soft start circuit to moderate the duty cycle of the and random deviations or PARD) may be reduced by adding fi lter elements PWM controller at power up, thereby limiting the input inrush current. such as multiple external capacitors. Be sure to calculate component tempera- The On/Off Remote Control interval from inception to VOUT regulated as- ture rise from refl ected AC current dissipated inside capacitor ESR. sumes that the converter already has its input voltage stabilized above the Floating Outputs Start-Up Threshold before the On command. The interval is measured from the Since these are isolated DC/DC converters, their outputs are “fl oating” with On command until the output enters and remains within its specifi ed regulation respect to their input. The essential feature of such isolation is ideal ZERO band. The specifi cation assumes that the output is fully loaded at maximum CURRENT FLOW between input and output. Real-world converters however do rated current. exhibit tiny leakage currents between input and output (see Specifi cations). Input Source Impedance These leakages consist of both an AC stray capacitance coupling component These converters will operate to specifi cations without external components, and a DC leakage resistance. When using the isolation feature, do not allow assuming that the source voltage has very low impedance and reasonable in- the isolation voltage to exceed specifi cations. Otherwise the converter may put voltage regulation. Since real-world voltage sources have fi nite impedance, be damaged. Designers will normally use the negative output (-Output) as performance is improved by adding external fi lter components. Sometimes only the ground return of the load circuit. You can however use the positive output a small ceramic capacitor is suffi cient. Since it is diffi cult to totally characterize (+Output) as the ground return to effectively reverse the output polarity. all applications, some experimentation may be needed. Note that external input capacitors must accept high speed switching currents. www.murata-ps.com/support MDC_SPM25.A04 Page 17 of 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters most applications. Sometimes it is possible to estimate the effective airfl ow if you thoroughly understand the enclosure geometry, entry/exit orifi ce areas and the fan fl owrate specifi cations. +VOUT CAUTION: If you exceed these Derating guidelines, the converter may have RLOAD an unplanned Over Temperature shut down. Also, these graphs are all collected C1 SCOPE C2 near Sea Level altitude. Be sure to reduce the derating for higher altitude. −VOUT Output Overvoltage Protection (OVP) This converter monitors its output voltage for an over-voltage condition using an on-board electronic comparator. The signal is optically coupled to the pri- C1 = 1μF mary side PWM controller. If the output exceeds OVP limits, the sensing circuit C2 = 10μF will power down the unit, and the output voltage will decrease. After a time-out LOAD 2-3 INCHES (51-76mm) FROM MODULE period, the PWM will automatically attempt to restart, causing the output volt- Figure 3. Measuring Output Ripple and Noise (PARD) age to ramp up to its rated value. It is not necessary to power down and reset the converter for this automatic OVP-recovery restart. Minimum Output Loading Requirements If the fault condition persists and the output voltage climbs to excessive These converters employ a synchronous rectifi er design topology. All models levels, the OVP circuitry will initiate another shutdown cycle. This on/off cycling regulate within specifi cation and are stable from 0% load to full load conditions, is referred to as “hiccup” mode. unless otherwise specifi ed. Operation under no load will not damage the con- verter but might, however, slightly increase regulation, output ripple, and noise. Output Current Limiting As soon as the output current increases to approximately its overcurrent limit, Thermal Shutdown the DC/DC converter will enter a current-limiting mode. The output voltage will To protect against thermal over-stress, these converters include thermal shut- decrease proportionally with increases in output current, thereby maintaining a down circuitry. If environmental conditions cause the temperature of the DC/ somewhat constant power output. This is commonly referred to as power limiting. DC’s to rise above the Operating Temperature Range up to the shutdown tem- Current limiting inception is defi ned as the point at which full power falls perature, an on-board electronic temperature sensor will power down the unit. below the rated tolerance. See the Performance/Functional Specifi cations. When the temperature decreases below the turn-on threshold, the converter Note particularly that the output current may briefl y rise above its rated value. will automatically restart. There is a small amount of hysteresis to prevent This enhances reliability and continued operation of your application. If the rapid on/off cycling. CAUTION: If you operate too close to the thermal limits, the output current is too high, the converter will enter the short circuit condition. converter may shut down suddenly without warning. Be sure to thoroughly test your application to avoid unplanned thermal shutdown. Output Short Circuit Condition Temperature Derating Curves 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 The graphs in the performance data section illustrate typical operation under a magnetically coupled voltage used to develop PWM bias voltage will also drop, variety of conditions. The Derating curves show the maximum continuous ambient thereby shutting down the PWM controller. Following a time-out period, the air temperature and decreasing maximum output current which is acceptable under PWM will restart, causing the output voltage to begin rising to its appropriate increasing forced airfl ow measured in Linear Feet per Minute (“LFM”). Note that value. If the short-circuit condition persists, another shutdown cycle will initi- these are AVERAGE measurements. The converter will accept brief increases in tem- ate. This on/off cycling is called “hiccup mode.” The hiccup cycling reduces the perature and/or current or reduced airfl ow as long as the average is not exceeded. average output current, thereby preventing excessive internal temperatures. Note that the temperatures are of the ambient airfl ow, not the converter it- self which is obviously running at higher temperature than the outside air. Also Trimming the Output Voltage note that “natural convection” is defi ned as very low fl ow rates which are not The Trim input to the converter allows the user to adjust the output voltage over using fan-forced airfl ow. Depending on the application, “natural convection” is the rated trim range (please refer to the Specifi cations). In the trim equations usually about 30-65 LFM but is not equal to still air (0 LFM). and circuit diagrams that follow, trim adjustments use a single fi xed resistor connected between the Trim input and either Vout pin. Trimming resistors should Murata Power Solutions makes Characterization measurements in a closed have a low temperature coeffi cient (±100 ppm/°C or less) and be mounted close cycle wind tunnel with calibrated airfl ow. We use both thermocouples and an to the converter. Keep leads short. If the trim function is not used, leave the trim infrared camera system to observe thermal performance. As a practical matter, unconnected. With no trim, the converter will exhibit its specifi ed output voltage it is quite diffi cult to insert an anemometer to precisely measure airfl ow in accuracy. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 18 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt DC-DC Converters There are two CAUTIONs to observe for the Trim input: There are two CAUTIONs for the On/Off Control: CAUTION: To avoid unplanned power down cycles, do not exceed EITHER the CAUTION: While it is possible to control the On/Off with external logic if you maximum output voltage OR the maximum output power when setting the trim. carefully observe the voltage levels, the preferred circuit is either an open If the output voltage is excessive, the OVP circuit may inadvertantly shut down drain/open collector transistor or a relay (which can thereupon be controlled by the converter. If the maximum power is exceeded, the converter may enter logic). The On/Off prefers to be set at approx. +15V (open pin) for the ON state, current limiting. If the power is exceeded for an extended period, the converter assuming positive logic. may overheat and encounter overtemperature shut down. CAUTION: Do not apply voltages to the On/Off pin when there is no input CAUTION: Be careful of external electrical noise. The Trim input is a senstive power voltage. Otherwise the converter may be permanently damaged. input to the converter’s feedback control loop. Excessive electrical noise may cause instability or oscillation. Keep external connections short to the Trim input. Use shielding if needed. +VOUT +VIN Trim Equations Trim Up Trim Down ON/OFF TRIM LOAD SPM25-033-D48 CONTROL RTRIM DOWN 12775 5110 x (Vo –2.5) – 2050 RT (Ω) = – 2050 RT (Ω) = UP DOWN 3.3 – VO VO – 3.3 −VIN −VOUT SPM25-050-D48 12775 5110 x (Vo –2.5) – 2050 RT (Ω) = – 2050 RT (Ω) = Figure 4. Trim adjustments to decrease Output Voltage using a Fixed Resistor UP DOWN 5 – VO VO – 5 SPM25-120-D48 +VOUT +VIN 10000 (Vo-2.5) 25000 – 5110 – 5110 RT (Ω) = RT (Ω) = UP DOWN VO – 12 12 – VO ON/OFF TRIM LOAD between Trim and +Vout> Where Vo = Desired output voltage. Adjustment accuracy is subject to resis- tor tolerances and factory-adjusted output accuracy. Mount trim resistor close −VIN −VOUT to converter. Use short leads. Remote On/Off Control Figure 5. Trim adjustments to increase Output Voltage using a Fixed Resistor On the input side, a remote On/Off Control can be specifi ed with either positive or negative logic as follows: +VCC Positive: Models equipped with Positive Logic are enabled when the On/Off pin is left open or is pulled high to +15VDC with respect to –VIN. An internal bias current causes the open pin to rise to +VIN. Positive-logic devices are disabled ON/OFF CONTROL when the On/Off is grounded or brought to within a low voltage (see Specifi ca- tions) with respect to –VIN. -VIN Negative: Models with negative logic are on (enabled) when the On/Off is grounded or brought to within a low voltage (see Specifi cations) with respect to –VIN. The device is off (disabled) when the On/Off is left open or is pulled high to +15VDC Max. with respect to –VIN. Figure 6. Driving the On/Off Control Pin (suggested circuit) Dynamic control of the On/Off function should be able to sink the specifi ed signal current when brought low and withstand specifi ed voltage when brought high. Be aware too that there is a fi nite time in milliseconds (see Specifi cations) between the time of On/Off Control activation and stable, regulated output. This time will vary slightly with output load type and current and input conditions. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 19 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om MURATA SPM25 Series SPM25 SERIES 25 Watt Ultra-Wide 4:1 Input Range DC-DC Converter Single Output Potted Metal Package Measures: 1.00 x 1.00 x 0.41” Isolated 25-Watt 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 airfl ow and heat dissipation analysis of power products. IR Transparent The system includes a precision low fl ow-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 10˝ X10˝ host carrier board for realistic heat absorption and spreading. Both longitudinal and trans- Heating verse airfl ow studies are possible by rotation of this carrier element board since there are often signifi cant differences in the heat Precision dissipation in the two airfl ow directions. The combination of low-rate adjustable airfl ow, 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 airfl ow turbulence. Such turbu- temperature lence infl uences 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 7. Vertical Wind Tunnel that power supplies are tested in real-world conditions. Soldering Guidelines Murata Power Solutions recommends the specifi cations below when installing these converters. These specifi cations vary depending on the solder type. Exceeding these specifi ca- tions may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production environment may 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: For Sn/Pb based solders: Maximum Preheat Temperature 115° C. Maximum Preheat Temperature 105° C. Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 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. Specifi cations are subject to change without notice. © 2015 Murata Power Solutions, Inc. www.murata-ps.com/support Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. MDC_SPM25.A04 Page 20 of 20 Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/murata-spm25-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om