MURATA POWER SOLUTIONS OKL-T/6-W5N-C

OKL-T/6-W5 Series www.murata-ps.com Programmable Output 6-Amp iLGA SMT PoLs T Typical unit ypical unit FEATURES PRODUCT OVERVIEW The OKL-T/6-W5 series are non-isolated effi cient Point of Load (PoL) module features ■ 2.4-5.5Vdc input voltage range Point-of-Load (PoL) DC/DC power converters for programmable output voltage and On/Off control. ■ Programmable output voltage from 0.6-3.3Vdc embedded applications. Featuring inspectable Land These converters also include under voltage lock ■ High power conversion effi ciency at 93.5% Grid Array (LGA) format, the OKL-T/6-W5 measures out (UVLO), output short circuit protection, over- ■ Inspectable Land Grid Array only 0.48 x 0.48 x 0.283 inches max. (12.2 x 12.2 current and over temperature protections. x 7.2 mm max.). An optional sequence/tracking feature allows ■ Drives up to 300 µF ceramic capacitive loads The wide input range is 2.4 to 5.5 Volts DC. power sequencing of PoL’s. These units are certi- ■ On/Off control The maximum output current is 6 Amps. Based fi ed to all standard UL/EN/IEC 60950-1 safety ■ Optional Sequence/Tracking operation on fi xed-frequency synchronous buck converter certifi cations (2nd Edition) and RoHS-6 hazardous ■ Outstanding thermal derating performance switching topology, the high power conversion substance compliance. ■ Over temperature and over current protection ■ Certifi ed to UL/EN/IEC 60950-1 safety, 2nd Edition ■ RoHS-6 hazardous substance compliance Connection Diagram +Vin +Vout • Switching F1 On/Off Sense Control • Filters Controller • Current Sense External Trim DC Power Reference and Open = On Source Error Amplifier Closed = Off (Positive On/Off) Common Common Sequence/Tracking (OKL2 Models) Figure 1. OKL-T/6-W5 Note: Murata Power Solutions strongly recommends an external input fuse, F1. See specifi cations. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 1 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Package–Pinout P83 On/ Efficiency Seq/ Model Number Regulation (max.) Off Vout Iout (Amps, Power R/N (mV p-p) Vin nom. Range Iin, no load Iin, full load Case C83 Track Logic (Volts) ➀ max.) (Watts) Max. ➃ (Volts) (Volts) (mA) ➄ (Amps) ➁ inches (mm) Line Load Min. Typ. 0.48x0.48x0.283 max OKL-T/6-W5P-C 0.6-3.3 6 19.8 25 ±0.35% ±0.35% 5 2.4-5.5 25 4.24 91.5% 93.5% Pos. no (12.2x12.2x7.2) max 0.48x0.48x0.283 max OKL-T/6-W5N-C 0.6-3.3 6 19.8 25 ±0.35% ±0.35% 5 2.4-5.5 25 4.24 91.5% 93.5% Neg. no (12.2x12.2x7.2) max 0.48x0.48x0.283 max OKL2-T/6-W5P-C 0.6-3.3 6 19.8 25 ±0.35% ±0.35% 5 2.4-5.5 25 4.24 91.5% 93.5% Pos. yes (12.2x12.2x7.2) max 0.48x0.48x0.283 max OKL2-T/6-W5N-C 0.6-3.3 6 19.8 25 ±0.35% ±0.35% 5 2.4-5.5 25 4.24 91.5% 93.5% Neg. yes (12.2x12.2x7.2) max I/O caps are necessary for our test equipment and may not be needed for your application. ➀ The output range (50% load) is limited by Vin. See detailed specs for full conditions. ➂ Use adequate ground plane and copper thickness adjacent to the converter. ➁ All specifications are at nominal line voltage, Vout=nominal (3.3V for W5 models) and full load, +25 deg.C. unless otherwise noted.  Ripple and Noise (R/N) are shown at Vout=1V. See specs for details. Output capacitors are 10 µF ceramic. Input cap is 22 µF. See detailed specifications. ➄ No load input current is shown at Vout = 3.3V. PART NUMBER STRUCTURE OK L 2 - T / 6 - W5 N - C Non-isolated PoL LGA Surface Mount Sequence/tracking RoHS Hazardous Blank = Not installed Substance Compliance 2 = Installed C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder) Trimmable Output Voltage Range On/Off Logic 0.6-3.3Vdc P = Positive Logic N = Negative Logic Maximum Rated Output Input Voltage Range Current in Amps 2.4-5.5Vdc Product Label Because of the small size of these products, the product label contains a Model Number Product Code OKL-T/6-W5P-C L01006 character-reduced code to indicate the model number and manufacturing date OKL-T/6-W5N-C L00006 code. Not all items on the label are always used. Please note that the label OKL2-T/6-W5P-C L21006 differs from the product photograph. Here is the layout of the label: OKL2-T/6-W5N-C L20006 The manufacturing date code is four characters: XXXXXX Product code First character – Last digit of manufacturing year, example 2009 Mfg. date YMDX Rev. Revision level Second character – Month code (1 through 9 = Jan-Sep; code O, N, D = Oct, Nov, Dec) Figure 2. Label Artwork Layout Third character – Day code (1 through 9 = 1 to 9, 10 = 0 and 11 through 31 = A through Z) The label contains three rows of information: Fourth character – Manufacturing information First row – Murata Power Solutions logo Second row – Model number product code (see table) Third row – Manufacturing date code and revision level www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 2 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs Performance and Functional Specifications See Note 1 Dynamic Characteristics Input Dynamic Load Response 50μSec max. to within ±2% of final value Input Voltage Range See Ordering Guide and Note 7. Isolation Not isolated (50-100% load step, di/dt=1A/μSec) (Note 1) Peak Deviation ±350 mV Start-Up Voltage 2.05 V Start-Up Time 6 mSec for Vout=nominal (Vin On) Undervoltage Shutdown (see Note 15) 1.92 V 6 mSec for Vout=nominal (Remote On/Off) (Vin on or On/Off to Vout regulated) Overvoltage Shutdown None ± 100 kHz Switching Frequency 600 KHz Reflected (Back) Ripple Current (Note 2) TBD mA pk-pk Internal Input Filter Type Capacitive Environmental Recommended External Fuse TBD Calculated MTBF (hours) OKL Models OKL2 Models Reverse Polarity Protection None, Install external fuse Telecordia method (4a) 5,573,000 5,341,000 Input Current: (hours) Calculated MTBF Full Load Conditions See Ordering Guide 4,383,000 MIL-HDBK-217N2 method (4b) 4,221,000 2 Inrush Transient A Sec. TBD Operating Temperature Range (Ambient, all output ranges) Shutdown Mode (Off, UV, OT) 1 mA See derating curves -40 to +85 °C. with derating (Note 9) Output in Short Circuit 10 mA Storage Temperature Range -55 to +125 °C. Low Line (Vin=Vmin) 4.68 A (Vout = 3.3V) Thermal Protection/Shutdown Included in PWM Remote On/Off Control (Note 5) MSL Rating 2 Negative Logic ON = Open pin or -0.2V to Vin -1.6V max. OFF = Vin -0.8V min. to +Vin max. Relative Humidity To 85%/+85 °C., non-condensing Positive Logic ON = Open pin (internally pulled up) or +1.2V to +Vin max. Physical OFF = -0.3V to +0.3V max. or ground Outline Dimensions See Mechanical Specifications Current TBD Weight 0.06 ounces (1.6 grams) Tracking/Sequencing (optional) See technical note on page 15 Plating Thickness Gold overplate 1.18µ" (0.03µm) Slew Rate 2 Volts per millisecond, max. on Nickel subplate 118.1µ" (3.0µm) Tracking accuracy, rising input Vout = ±100 mV of Sequence In Tracking accuracy, falling input Vout = ±100 mV of Sequence In Safety Certified to UL/cUL 60950-1, CSA- C22.2 No. 60950-1, IEC/EN 60950-1, Output 2nd Edition Output Power 20.2W max. Restriction of Hazardous Substances RoHS-6 (does not claim EU RoHS exemption Output Voltage Range See Ordering Guide 7b–lead in solder) Minimum Loading No minimum load Absolute Maximum Ratings Accuracy (50% load, untrimmed) ±2 % of Vnominal Input Voltage (Continuous or transient) 0 V. to +6 Volts max. Voltage Output Range (Note 13) See Ordering Guide On/Off Control 0 V. min. to +Vin max. Overvoltage Protection (Note 16) None Input Reverse Polarity Protection None, Install external fuse Temperature Coefficient TBD Output Current (Note 7) Current-limited. Devices can withstand a Ripple/Noise (20 MHz bandwidth) See Ordering Guide and note 8 sustained short circuit without damage. The outputs are not intended to accept Line/Load Regulation See Ordering Guide and note 10 appreciable reverse current. Efficiency See Ordering Guide Storage Temperature -55 to +125 °C. Maximum Capacitive Loading (Note 14) Lead Temperature See soldering specifications Cap-ESR=0.001 to 0.01 Ohms 300 μF Cap-ESR >0.01 Ohms TBD Absolute maximums are stress ratings. Exposure of devices to greater than any of any of these conditions may adversely affect long-term reliability. Proper operation Current Limit Inception (Note 6) under conditions other than those listed in the Performance/Functional Specifications (98% of Vout setting, after warm up) 12 Amps Table is not implied nor recommended. Short Circuit Mode Short Circuit Current Output 10 mA Specification Notes: Protection Method Hiccup autorecovery upon overload (1) Specifications are typical at +25 °C, Vin=nominal (+5V), Vout=nominal (+3.3V), full load, external caps and removal. (Note 17) natural convection unless otherwise indicated. Extended tests at full power must supply substantial forced airflow. Short Circuit Duration Continuous, no damage All models are tested and specified with external 10μF ceramic output capacitors and a 22 μF external (output shorted to ground) input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test Prebias Startup Converter will start up if the external equipment and may not be required to achieve specified performance in your applications. However, Murata output voltage is less than Vnominal. Power Solutions recommends installation of these capacitors. All models are stable and regulate within spec under no-load conditions. (2) Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is Cin=2 x 100 μF ceramic, Cbus=1000 μF electrolytic, Lbus=1 μH. (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the Derating curve. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 3 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs Specification Notes, Cont.: (4a) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fixed (12) Maximum PC board temperature is measured with the sensor in the center of the converter. conditions, Tpcboard=+25 ˚C, full output load, natural air convection. (13) Do not exceed maximum power specifications when adjusting the output trim. (4b) Mean Time Before Failure is calculated using the MIL-HDBK-217N2 method, ground benign, +25ºC., full output (14) The maximum output capacitive loads depend on the the Equivalent Series Resistance (ESR) of the external load, natural convection. output capacitor and, to a lesser extent, the distance and series impedance to the load. Larger caps will reduce (5) The On/Off Control Input should use either a switch or an open collector/open drain transistor referenced to output noise but may change the transient response. Newer ceramic caps with very low ESR may require lower -Input Common. A logic gate may also be used by applying appropriate external voltages which do not exceed capacitor values to avoid instability. Thoroughly test your capacitors in the application. Please refer to the Output +Vin. Capacitive Load Application Note. (6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting. (15) Do not allow the input voltage to degrade lower than the input undervoltage shutdown voltage at all times. Otherwise, you risk having the converter turn off. The undervoltage shutdown is not latching and will attempt to (7) Please observe the voltage input and output specifications in the Voltage Range Graph on page 17. recover when the input is brought back into normal operating range. (8) Output noise may be further reduced by adding an external filter. At zero output current, the output may contain (16) The outputs are not intended to sink appreciable reverse current. low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load. (17) “Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition still exists, the restart current will be removed and then tried again. This short current (9) All models are fully operational and meet published specifications, including “cold start” at –40˚ C. pulse prevents overheating and damaging the converter. Once the fault is removed, the converter immediately (10) Regulation specifications describe the deviation as the line input voltage or output load current is varied from a recovers normal operation. nominal midpoint value to either extreme. (11) Other input or output voltage ranges will be reviewed under scheduled quantity special order. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 4 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 3.3V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 3.3V). 100 7 6 Natural convection 5 4 95 3 VIN = 4V VIN = 5V 2 VIN = 5.5V 1 90 0 1 2 3 4 5 6 0 Load Current (Amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=3.3V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=3.3V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=3.3V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=3.3V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 5 of 17 Efficiency (%) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 2.5V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 2.5V). 100 7 6 Natural convection 5 95 4 VIN = 3V VIN = 5V 3 90 VIN = 5.5V 2 1 85 0 1 2 3 4 5 6 0 Load Current (Amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=2.5V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=2.5V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=2.5V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=2.5V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 6 of 17 Efficiency (%) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 1.8V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 1.8V). 100 100 7 6 95 95 Natural convection 5 4 90 90 3 V VIN IN = 2.4V = 2.4V 85 85 V VIN IN = 5V = 5V 2 V VIN IN = 5.5V = 5.5V 1 80 80 0 0 1 1 2 2 3 3 4 4 5 5 6 6 0 Load Load C Cu ur rr re en nt t ( (A Am mp ps s) ) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=1.8V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=1.8V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=1.8V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=1.8V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 7 of 17 E Ef ffi fic ciie en nc cy y ( (% %) ) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 1.5V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 1.5V). 100 7 6 95 Natural convection 5 90 4 VIN = 2.4V 85 VIN = 5V 3 VIN = 5.5V 2 80 1 75 0 1 2 3 4 5 6 0 Load Current (Amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=1.5V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=1.5V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=1.5V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=1.5V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 8 of 17 Efficiency (%) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 1.2V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 1.2V). 100 7 6 95 Natural convection 5 90 4 85 VIN = 2.4V VIN = 5V 3 80 VIN = 5.5V 2 75 1 70 0 1 2 3 4 5 6 0 Load Current (Amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=1.2V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=1.2V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=1.2V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=1.2V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 9 of 17 Efficiency (%) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs PERFORMANCE DATA, OKL-T/6-W5 Effi ciency vs. Line Voltage and Load Current @ +25°C (Vout = 1.0V) Maximum Current Temperature Derating at Sea Level (Vin= 5V, Vout = 1.0V). 100 7 6 95 Natural convection 5 90 4 85 VIN = 2.4V 3 80 VIN = 5V VIN = 5.5V 2 75 1 70 0 1 2 3 4 5 6 0 Load Current (Amps) 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Ambient Temperature (ºC) Output Ripple and Noise (Vin=5V, Vout=1.0V, Iout=6A, ScopeBW=20MHz) On/Off Enable Startup (Vin=5V, Vout=1.0V, Iout=6A, Cload=0) Trace 4=Enable, Trace2=Vout Step Load Transient Response (Vin=5V, Vout=1.0V, Iout=6A to 3A) Step Load Transient Response (Vin=5V, Vout=1.0V, Iout=3A to 6A) Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. Trace 2=Vout, 200 mV/div. Trace 4=Iout, 5A/div. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 10 of 17 Efficiency (%) Output Current (Amps) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs MECHANICAL SPECIFICATIONS Top View INPUT/OUTPUT CONNECTIONS 0.043 (1.09) 0.48 NOM. PCB Pin Function (12.19) THK 1 On/Off Control* Bottom View 2 Vin 3 Ground 4 Vout 5 Sense 6 Trim 0.48 7 Ground (12.19) 8 No Connection 9 Sequence/Tracking** 10 No Connection 11 No Connection Side View 12 No Connection *The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) logic. **OKL2 models only 0.283 SOLDER PAD NOTES: (7.2) [1] To avoid incorrect contacts with exposed via’s and plated through holes on the bottom of the converter, do not have any max. exposed copper around the unit aside from our recommended footprint. Except for connections to the pads, keep all external circuits away from the board edges. End View [2] Do not connect any additional components between the Trim pin and Vout or between the Trim and Sense pins. Use only the specified connections. Recommended Footprint Bottom View -through the Board- 12.7 0.50 0.070-0.080 [1.78-2.03mm] 4.57 x 0.180 0.160-0.170 [4.06-4.32mm] 3.43 3 PLACES 0.135 1.14 1.27 0.045 0.050 (14 PLS) 4 3 2 2 3 4 0.420 (10.67) Vin Gnd Gnd Vin 0.375 (9.53) 4.57 3.43 12.40 0.180 0.135 1 0.488 5 5 12.7 Sense On/Off Sense On/Off 0.240 (6.10) 1 C L 0.50 2.29 11 10 NC 0.090 11 NC 4.57 0.150 (3.81) 10 0.180 Trim Gnd NC Seq 6 NC Gnd NC Trim1 NC 6 0.060 (1.52) 9 9 Seq 0 12 7 8 8 7 12 2.29 0.040-0.050 [1.02-1.27mm] 0.090 SQUARE PAD (9 PLS) Dimensions are in inches (mm shown for ref. only). 4.57 2.29 0.180 0.090 Third Angle Projection C Copper Pads L Plating Thickness: 12.40 No Exposed Gold overplate 1.18µ" (0.03µm) 0.488 Copper on Nickel subplate 118.1µ" (3.0µm) Permitted Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Figure 3. OKL-T/6-W5 Mechanical Outline Components are shown for reference only. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 11 of 17 0 0.060 (1.52) Vout 0.150 (3.81) 0.195 (4.95) 0.240 (6.10) 0.330 (8.38) 0.375 (9.53) 0.420 (10.67) Vout1 L00103 YMDX Rev. L00103 YMDX Rev. L00103 YMDX Rev. OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs TAPE AND REEL INFORMATION (MSL RATING 2) Tape Detail 7.40±0.1 Round 2.00±0.1 0.40±0.05 Sprocket +0.1 ø1.50 -0 16.00±0.1 4.00±0.1 Holes B’ B Vacuum Pickup A A’ Pulling direction Point in Center 12.60±0.1 (7.0º) Notes 1) The radius (R) is 0.3mm max. 2) Cumulative tolerance of 10 pitches of the sprocket hole is ±0.2mm. A-A’ SECTION Reel Detail Reel diameter 330.2 Start of pocket tape A End of modules C B Start of Start of modules cover tape in pockets Reel Information (400 units per reel) Hub diameter 13.00 Inner diameter 101.6 Key Description Length (mm) All dimensions are in millimeters. A Tape trailer (no modules) 800 ±40 B Pocket tape length before modules 200 min. C Cover tape length before pocket tape 240 ±40 www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 12 of 17 11.50±0.1 1.75±0.1 +0.3 24.00 -0.1 12.60±0.1 (7.0º) B-B’ SECTION OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs TECHNICAL NOTES Start-Up Delay Assuming that the output current is set at the rated maximum, the Vin to Output Voltage Adustment Vout Start-Up Delay (see Specifications) is the time interval between the The output voltage may be adjusted over a limited range by connecting an point when the rising input voltage crosses the Start-Up Threshold and the external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim resis- fully loaded regulated output voltage enters and remains within its specified tor must be a 1/10 Watt precision metal film type, ±0.5% accuracy or better regulation band. Actual measured times will vary with input source imped- with low temperature coefficient, ±100 ppm/ C. or better. Mount the resistor ° ance, external input capacitance, input voltage slew rate and final value of close to the converter with very short leads or use a surface mount trim resistor. the input voltage as it appears at the converter. In the table below, the calculated resistance is given. Do not exceed the These converters include a soft start circuit to moderate the duty cycle of specified limits of the output voltage or the converter’s maximum power rating the PWM controller at power up, thereby limiting the input inrush current. when applying these resistors. Also, avoid high noise at the Trim input. However, to prevent instability, you should never connect any capacitors to Trim. The On/Off Remote Control interval from inception to Vout regulated assumes that the converter already has its input voltage stabilized above Resistor Trim Equation, OKL-T/6-W5 models: the Start-Up Threshold before the On command. The interval is measured 1.2 ___________ RTRIM (KW) = from the On command until the output enters and remains within its VOUT – 0.6 specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. Output Voltage Calculated Rtrim (KΩ) Recommended Input Filtering 3.3 V. 0.444 The user must assure that the input source has low AC impedance to 2.5 V. 0.632 provide dynamic stability and that the input supply has little or no inductive 1.8 V. 1.0 content, including long distributed wiring to a remote power supply. The converter will operate with no additional external capacitance if these 1.5 V. 1.333 conditions are met. 1.2 V. 2.0 1.0 V. 3.0 For best performance, we recommend installing a low-ESR capacitor immediately adjacent to the converter’s input terminals. The capacitor 0.6 V. ∞ (open) should be a ceramic type such as the Murata GRM32 series or a polymer Do not connect any additional components between the Vtrim pin and Vout type. Initial suggested capacitor values are 10 to 22 µF, rated at twice the or between the Trim and Sense pins. Use only the specified connections as expected maximum input voltage. Make sure that the input terminals do recommended per this data sheet. not go below the undervoltage shutdown voltage at all times. More input bulk capacitance may be added in parallel (either electrolytic or tantalum) Input Fusing if needed. Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there Recommended Output Filtering is the possibility of sustained input voltage reversal which is not current- The converter will achieve its rated output ripple and noise with no limited. For greatest safety, we recommend a fast blow fuse installed in the additional external capacitor. However, the user may install more exter- ungrounded input supply line. nal output capacitance to reduce the ripple even further or for improved dynamic response. Again, use low-ESR ceramic (Murata GRM32 series) The installer must observe all relevant safety standards and regulations. or polymer capacitors. Initial values of 10 to 47 µF may be tried, either For safety agency approvals, install the converter in compliance with the single or multiple capacitors in parallel. Mount these close to the converter. end-user safety standard. Measure the output ripple under your load conditions. Input Under-Voltage Shutdown and Start-Up Threshold Use only as much capacitance as required to achieve your ripple and Under normal start-up conditions, converters will not begin to regulate noise objectives. Excessive capacitance can make step load recovery properly until the rising input voltage exceeds and remains at the Start-Up sluggish or possibly introduce instability. Do not exceed the maximum rated Threshold Voltage (see Specifications). Once operating, converters will not output capacitance listed in the specifications. turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again Input Ripple Current and Output Noise above the Start-Up Threshold. This built-in hysteresis prevents any unstable All models in this converter series are tested and specified for input on/off operation at a single input voltage. reflected ripple current and output noise using designated external input/ output components, circuits and layout as shown in the figures below. The Users should be aware however of input sources near the Under-Voltage Cbus and Lbus components simulate a typical DC voltage bus. Please note Shutdown whose voltage decays as input current is consumed (such as that the values of Cin, Lbus and Cbus will vary according to the specific capacitor inputs), the converter shuts off and then restarts as the external converter model. capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 13 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs TO CURRENT OSCILLOSCOPE PROBE +VIN +VOUT LBUS + – VIN CBUS CIN RLOAD C1 SCOPE C2 + – -VIN -VOUT CIN = 2 x 100µF, ESR < 700mΩ @ 100kHz CBUS = 1000µF, ESR < 100mΩ @ 100kHz LBUS = 1µH C1 = 1µF Figure 4. Measuring Input Ripple Current C2 = 10µF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 5. Measuring Output Ripple and Noise (PARD) Minimum Output Loading Requirements Output Voltage Sequencing All models regulate within specification and are stable under no load to full The OKL modules include a sequencing feature that enables users to load conditions. Operation under no load might however slightly increase implement various types of output voltage sequencing in their applications. output ripple and noise. This is accomplished via an additional sequencing pin. When not using the Thermal Shutdown sequencing feature, either tie the sequence pin to Vin or leave it uncon- To prevent many over temperature problems and damage, these converters nected. include thermal shutdown circuitry. If environmental conditions cause the When an analog voltage is applied to the sequence pin, the output temperature of the DC/DC’s to rise above the Operating Temperature Range voltage tracks this voltage until the output reaches the set-point voltage. up to the shutdown temperature, an on-board electronic temperature The final value of the sequence voltage must be set higher than the set- sensor will power down the unit. When the temperature decreases below point voltage of the module. The output voltage follows the voltage on the the turn-on threshold, the converter will automatically restart. There is a sequence pin on a one-to-one volt basis. By connecting multiple modules small amount of hysteresis to prevent rapid on/off cycling. together, multiple modules can track their output voltages to the voltage CAUTION: If you operate too close to the thermal limits, the converter applied on the sequence pin. may shut down suddenly without warning. Be sure to thoroughly test your For proper voltage sequencing, first, input voltage is applied to the application to avoid unplanned thermal shutdown. module. The On/Off pin of the module is left unconnected (or tied to GND Temperature Derating Curves for negative logic modules or tied to Vin for positive logic modules) so that the module is ON by default. After applying input voltage to the module, The graphs in this data sheet illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air a minimum 10msec delay is required before applying voltage on the sequence pin. During this time, a voltage of 50mV (± 20 mV) is maintained temperature and decreasing maximum output current which is accept- able under increasing forced airflow measured in Linear Feet per Minute on the sequence pin. This delay gives the module enough time to complete its internal powerup soft-start cycle. During the delay time, the sequence (“LFM”). Note that these are AVERAGE measurements. The converter will accept brief increases in current or reduced airflow as long as the average pin should be held close to ground (nominally 50mV ± 20 mV). This is re- quired to keep the internal opamp out of saturation thus preventing output is not exceeded. overshoot during the start of the sequencing ramp. By selecting resistor R1 Note that the temperatures are of the ambient airflow, not the converter according to the following equation itself which is obviously running at higher temperature than the outside 23500 air. Also note that very low flow rates (below about 25 LFM) are similar to R1 = ———— ohms, Vin – 0.05 “natural convection”, that is, not using fan-forced airflow. the voltage at the sequencing pin will be 50mV when the sequencing Murata Power Solutions makes Characterization measurements in a signal is at zero. See figure 6 for R1 connection for the sequencing signal to closed cycle wind tunnel with calibrated airflow. We use both thermo- the SEQ pin. couples and an infrared camera system to observe thermal performance. http://www.murata-ps.com/datasheet/?http:// CAUTION: These graphs are all collected at slightly above Sea Level www.murata-ps.com/data/apnotes/dcan-61.pdf Click here to view Application Note DCAN-61 altitude. Be sure to reduce the derating for higher density altitude. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 14 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs Output Current Limiting Output Capacitive Load Current limiting inception is defined as the point at which full power falls These converters do not require external capacitance added to achieve below the rated tolerance. See the Performance/Functional Specifica- rated specifications. Users should only consider adding capacitance to tions. Note particularly that the output current may briefly rise above its reduce switching noise and/or to handle spike current load steps. Install rated value in normal operation as long as the average output power is only enough capacitance to achieve noise objectives. Excess external not exceeded. This enhances reliability and continued operation of your capacitance may cause regulation problems, degraded transient response application. If the output current is too high, the converter will enter the and possible oscillation or instability. short circuit condition. Output 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 (approximately 98% of nominal output voltage for most models), the mag- netically coupled voltage used to develop PWM bias voltage will also drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart, causing the output voltage to begin rising to its appropri- ate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode”. The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage. The “hiccup” system differs from older latching short circuit systems OKL -T +Vin because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed. Remote On/Off Control 470K The OKL Series power modules can be specified with either a positive or nega- + tive logic type. See Figures 7 and 8 for On/Off circuit control. In the positive logic on/off option the unit turns on during a logic high on the On/Off pin and turns off OUT R1 during a logic low. In a negative logic on/off option, the unit turns off during logic – high and on during logic low. The On/Off signal should always be reference to SEQ 10K ground. For positive or negative option, leaving then On/Off pin disconnected SEQ Control Voltage will turn the unit on when input voltage is present. Positive—Units are enabled when the on/off pin is left open or is pulled GND high to +Vin. The On/Off circuit control is shown in figure 7. When the Figure 6. Sequencing Signal Interface of Module external transistor Q1 is in the off state, the internal PWM enable pin is pull high causing the unit to turn on. When Q1 is turn on, the On/Off pin is pulled low and the units is off. Rp should be around 20K ohms. OKL N Module Negative—Units are enabled when the ON/Off is open or brought to within a low voltage (see specifications) with respect to –Vin. The unit is off when the ON/Off is pulled high with respect to –Vin (see specifications). The +Vin +Vin On/Off circuitry is shown in figure 8. The On/Off pin should be pulled high PWM E with an external pull-up resistor (20K ohms). When Q1 is in the off state, Rp the On/Off pin is pulled high, transistor Q3 is turn on and the unit is off. To On/Off Q3 turn on the unit, Q1 is turn on, pulling the On/Off pin low and turning Q3 off GND resulting on the unit being on. Q1 Dynamic control of the On/Off function should be able to sink the speci- fied signal current when brought low and withstand appropriate voltage when brought high. Be aware too that there is a finite time in milliseconds (see specifications) between the time of On/Off Control activation and GND GND stable, regulated output. This time will vary slightly with output load type BOM  Rp  20K and current and input conditions. BOM  Q1  Q SMT MOS P 30V Figure 7. On/Off Circuit Control for Using Negative On/Off Logic www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 15 of 17 OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs Voltage Range Graph Soldering Guidelines Please observe the limits below for voltage input and output ranges. These Murata Power Solutions recommends the specifications below when installing these limits apply at all output currents. converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ 6 therefore please thoroughly review these guidelines with your process engineers. 5 4 Reflow Solder Operations for surface-mount products (SMT) Vin=2.4V / Vout=1.8V For Sn/Ag/Cu based solders: 3 Preheat Temperature Less than 1 ºC. per second Time over Liquidus 45 to 75 seconds 2 Maximum Peak Temperature 260 ºC. 1 Upper Limit Cooling Rate Less than 3 ºC. per second Lower Limit For Sn/Pb based solders: 0 Preheat Temperature Less than 1 ºC. per second 0.5 1 1.5 2 2.5 3 3.5 Output Voltage (V) Time over Liquidus 60 to 75 seconds Maximum Peak Temperature 235 ºC. Cooling Rate Less than 3 ºC. per second Recommended Lead-free Solder Reflow Profile Peak Temp. 250 235-260° C 200 Reflow Zone 150 Soaking Zone time above 217° C 45-75 sec 120 sec max 100 <1.5° C/sec High trace = normal upper limit Preheating Zone Low trace = normal lower limit 50 240 sec max 0 0 30 60 90 120 150 180 210 240 270 300 Time (sec) www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 16 of 17 Input Voltage (V) Temperature (°C) OKL-T/6-W5 Series Programmable Output 6-Amp iLGA SMT PoLs 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 host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse Heating airfl ow studies are possible by rotation of this carrier board element 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 that power supplies are tested in real-world conditions. Figure 8. Vertical Wind Tunnel 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. © 2017 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_OKL-T/6-W5 Series.C03 Page 17 of 17