UWE-100-120W Series www.murata-ps.com Wide Input, Isolated Eighth-Brick DC-DC Converters The UWE Series "Eighth-Brick" DC-DC Converters are high-current isolated power modules designed for use in high-density system boards. Typical units FEATURES PRODUCT OVERVIEW Industry-standard through-hole eighth-brick package Wide input range of 18-75Vdc or 9-36Vdc (12Vout only) Fixed outputs from 3.3, 5 and 12 Volts DC up to 120 Watts Synchronous rectification yields very high efficiency and low power dissipation Operating temperature range from -40°C to +85˚C with derating Up to 2250 Volt DC isolation The UWE series open frame DC-DC converters deliver up to 120 Watts in an industry-standard “eighth-brick” through-hole package. This format can plug directly into quarter-brick pin outs. Several standard fixed-output voltages from 3.3 Vdc to 12 Vdc assure compatibility in embedded equipment, CPU cards and instrument subsystems. The extended 4-to-1 input voltage range is ideal for battery-powered, telecom or portable applications. Very high efficiency means no fans or temperature deratings in many applications. An optional baseplate extends operation into most conceivable environments. The synchronous rectifier design uses the maximum available duty cycle for greatest efficiency and low power dissipation. These devices deliver low output noise, tight line/load regulation, stable no-load operation and fast load step response. All Outstanding thermal performance and derating Extensive self-protection, over temperature and overload features On/Off control, trim and remote sense functions Certified to UL/EN/IEC 60950-1, CAN/CSA-C22.2 No. 60950-1, 2nd Edition, safety approvals and EN55022/CISPR22 standards Pre-bias operation for startup protection units are precision assembled in a highly automated facility with ISO-traceable manufacturing quality standards. Isolation of 2250 Volts assures safety and fully differential (floating) operation for greatest application flexibility. On-board Sense terminals compensate for load line voltage errors at high output currents. Outputs are trimmable within ±10% of nominal voltage. A wealth of protection features prevents damage to both the converter and outside circuits. Inputs are protected from under voltage and outputs feature short circuit protection, over current and over temperature shut down. Overloads automatically recover using the “hiccup” technique upon fault removal. The UWE is certified to standard safety and EMI/RFI approvals. All units meet RoHS-6 hazardous materials compliance. +VOUT +VIN SWITCH DRIVE VOLTAGE REGULATOR SS +SENSE −VOUT PWM –VIN −SENSE ON/OFF CONTROL ISOLATION REFERENCE AMPLIFIER, TRIM AND FEEDBACK TRIM Typical topology is shown. Figure 1. Simplified Block Diagram For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 1 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters SPECIFICATION SUMMARY AND ORDERING GUIDE ➁➂ Output Input R/N (mVp-p) Regulation (%) Efficiency IIN, min IIN, full VIN Nom. Range load load Min. (V) (V) (mA) (A) Dimensions VOUT (V) ➃ IOUT (A) Power (W) Typ. Max. Line Load 3.3 30 99 90 125 ±0.2 ±0.2 48 18-75 90 2.30 88% 89.5% 2.3x0.9x0.39 58.42x22.86x9.91 UWE-5/20-Q48-C 5 20 100 75 110 ±0.1 ±0.2 48 18-75 100 2.30 89% 90.5% 2.3x0.9x0.39 58.42x22.86x9.91 UWE-12/10-Q48-C 12 10 120 115 200 ±0.15 ±0.075 48 18-75 110 2.732 90% 91.5% 2.3x0.9x0.39 58.42x22.86x9.91 UWE-12/10-Q12-C 12 10 120 115 200 ±0.15 ±0.075 12 9-36 260 10.95 89.5% 91.3% 2.3x0.9x0.34 58.42x22.86x8.64 Root Model UWE-3.3/30-Q48-C Please refer to the part number structure for additonal ordering model numbers and options. All specifications are typical at nominal line voltage, nominal output voltage and full load, +25°C Typ. Case (Inches) Case (mm) I/O caps are necessary for our test equipment. The values and number of capacitors may be modified depending on the application. unless otherwise noted. See detailed specifications. External capacitors used for testing: with appropriate voltage and current ratings, output capacitors are 1 μF in parallel with 10 μF. Input cap is 33 μF. All caps are low ESR types. Contact Murata Power Solutions for details. PART NUMBER STRUCTURE U W E - 12 / 10 - Q48 N B LX - C RoHS Hazardous Materials Compliance C=RoHS-6, standard (does not claim EU RoHS exemption 7b–lead in solder) Unipolar, Single-Output Wide Input Range Eighth-Brick Package Nominal Output Voltage Maximum Rated Output Current in Amps Pin Length Option Blank = Standard pin length 0.19 inches (4.8mm) L1 = Pin length 0.110 inches (2.79mm)* L2 = Pin length 0.145 inches (3.68mm)* Baseplate (optional) Blank = No baseplate B = Baseplate installed On/Off Control Logic Option N = Negative logic P = Positive logic Input Voltage Range Q48 = 18-75 Volts Q12 = 9-36 Volts (12Vout only) *Minimum order quantity is required. Samples available with standard pin length only. Note: Some model number combinations may not be available. See website or contact your local Murata sales representative. Customer Configured Part Numbers: 1. UWE-31311-C (special version of the UWE-12/10-Q48NB-C) a. Includes conformal coating b. Isolation tested to 2,828Vdc Input-to-Output per IEEE 1613 c. Pin length of 0.180 inches ±0.02 (4.6mm ±0.508) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 2 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-3.3/30-Q48 ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power CONDITIONS AND COMMENTS ➀ Full power operation Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin MINIMUM TYPICAL/NOMINAL MAXIMUM 80 UNITS Vdc 100 Vdc 2250 Vdc Vdc Vdc W None 0 0 15 99.99 Current-limited, no damage, 0 30 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT CONDITIONS AND COMMENTS ➀ ➂ Operating voltage range 18 48 75 Vdc Recommended External Fuse Fast blow 12 A Start-up threshold, Turn On Rising input voltage 16.5 17 17.9 Vdc Undervoltage shutdown, Turn Off Falling input voltage 15.5 16.5 17.5 Vdc Turn-On/Turn-Off Hysteresis 0.86 1.05 1.25 Vdc Overvoltage shutdown NA Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type Pi-type Input current Full Load Conditions Vin = nominal 2.304 2.367 A Low Line Vin = minimum 6.145 6.349 A Inrush Transient 0.1 A2-Sec. Short Circuit Input Current 150 200 mA No Load Input Current Iout = minimum, unit=ON 90 125 mA Standby Mode Input Current (Off, UV, OT) 4 8 mA no filtering 500 700 mA, P-P Reflected (back) ripple current ➁ Measured at input with specified filter 50 70 mA, P-P Reflected (back) ripple current ➁ Pre-biased startup Monotonic GENERAL AND SAFETY Vin=24V, full load 89 90 % Efficiency Vin=min. to max. 87.5 89 % Vin=48V, full load 88 89.5 % Isolation Isolation Voltage, input to output No baseplate 2250 Vdc Isolation Voltage, input to output With baseplate 2250 Vdc Isolation Voltage, input to baseplate With baseplate 1500 Vdc Isolation Voltage, output to baseplate With baseplate 750 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1000 pF Certified to UL-60950-1, CSA-C22.2 No.60950-1, Safety Yes IEC/EN60950-1, 2nd edition (pending) Per Telcordia SR332, issue 1, class 3, ground Calculated MTBF TBD Hours x 103 fixed, Tambient=+40C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 195 215 235 KHz Startup Time Power on, Vout regulated 20 30 mS Startup Time Remote ON to Vout regulated 10 20 mS 50-75-50% load step, settling time to within Dynamic Load Response 50 200 μSec 2% of Vout. Dynamic Load Peak Deviation same as above ±500 mV FEATURES AND OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state ON = Pin grounded or external voltage 0 1 V Negative Logic, OFF state OFF = Pin open or external voltage 3.5 15 V Control Current open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 3.5 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.8 V Control Current open collector/drain 1 2 mA Base Plate "B" suffix Output Current www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 3 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-3.3/30-Q48 (CONT.) OUTPUT Total Output Power Voltage Nominal Output Voltage Settling Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading MECHANICAL (THROUGH HOLE MODELS) Outline Dimensions (Please refer to outline drawing) Weight (without baseplate) 0 99 99.99 W 3.267 -1 -10 3.3 3.8 3.333 1 10 4.5 Vdc % of Vset. % of Vnom. Vdc 0 30 30 A 33 35 44 A Hiccup technique, autorecovery within ±1% of Vout 5 10 A Output shorted to ground, no damage Continuous 125 % of Vout % of Vout mV pk-pk % of Vout./°C μF No trim At 50% load User-adjustable (see trim formulas) Via magnetic feedback No minimum load 98% of Vnom., after warmup Hiccup current limiting Vin=min. to max., Vout=nom., nom load Iout=min. to max 5 Hz- 20 MHz BW At all outputs Low ESR 0 Through Hole Pin Material TH Pin Plating Metal and Thickness Baseplate Material ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Operating Base Plate Temp Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Radiated, EN55022/CISPR22 RoHS rating Notes Diameter of pins standard Nickel subplate Gold overplate See derating Vin = Zero (no power) No derating required Measured at hotspot External filter is required ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, airflow of 300lfm for extended operation time. All models are tested and specified with external parallel 1 μF and 10 μF output capacitors. A 33μF external input capacitor with appropriate voltage and current rating is used. All capacitors are low-ESR types wired close to the converter. The values and number of capacitors may be modified depending on the application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. 10,000 2.3x.9x.39 58.42x22.86x9.91 0.7 20 12.9 36.5 0.062 & 0.04 1.575 & 1.016 Copper alloy 50 5 Aluminum LxWxH Weight (with baseplate) Through Hole Pin Diameter ±0.2 ±0.2 90 0.02 4700 -40 -55 -40 135 140 B B RoHS-6 Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches 85 125 100 150 °C °C °C Class Class ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. Please be aware of small details that may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. ➅ If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external input fuse in series with the +VIN input. Use approximately twice the full input current rating with nominal input voltage. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 4 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-3.3/30-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Line and Load 95 13 91 87 Dissipation (Watts) 11 Efficiency (%) 83 79 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 75 71 67 63 9 7 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 5 3 59 1 55 1 2 3 4 5 6 7 8 9 2 10 4 6 8 10 31 30 30 29 29 28 28 27 27 26 26 Output Current (Amps) Output Current (Amps) 31 25 0.33 m/s (65 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) 22 21 20 18 20 22 24 26 28 30 0.33 m/s (65 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) 25 24 23 22 21 20 19 19 18 18 17 17 16 30 35 40 45 50 55 60 65 70 75 80 16 85 30 35 40 45 Ambient Temperature (°C) 30 29 29 28 28 27 27 26 26 Output Current (Amps) 31 30 25 24 0.33 m/s (65 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) 22 21 20 55 60 65 70 75 80 85 80 85 Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 3 to Pin 1, with baseplate) 31 23 50 Ambient Temperature (°C) Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 3 to Pin 1, no baseplate) Output Current (Amps) 16 Maximum Current Temperature Derating @sea level (VIN = 24V, air flow from Pin 3 to Pin 1, with baseplate) Maximum Current Temperature Derating @ sea level (VIN = 24V, air flow from Pin 3 to Pin 1, no baseplate) 23 14 Load Current (Amps) Load Current (Amps) 24 12 25 0.33 m/s (65 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) 24 23 22 21 20 19 19 18 18 17 17 16 16 30 35 40 45 50 55 60 Ambient Temperature (°C) 65 70 75 80 85 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 5 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-3.3/30-Q48 Startup Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=30A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=30A, Cout=10000μF, Ta=+25°C) Trace1=Vin, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Enable, race2=Vout. On/Off Enable Delay (Vin=48V, Iout=30A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=30A, Cout=10000μF, Ta=+25°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 6 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-3.3/30-Q48 Stepload Transient Response (Vin=48V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF , Slew rate: 10A/uS at Ta=+25°C) Stepload Transient Response (Vin=48V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF || 10000μF , Slew rate: 10A/uS at Ta=+25°C) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=0A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=30A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Thermal image with hot spot at 23.5A current with 25°C ambient temperature. Natural convection is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q14 and Copper are the hot spots. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 7 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-5/20-Q48-C ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power CONDITIONS AND COMMENTS ➀ Full power operation Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin MINIMUM TYPICAL/NOMINAL MAXIMUM 80 UNITS Vdc 100 Vdc 2250 Vdc Vdc Vdc W None 0 0 15 101 Current-limited, no damage, 0 20 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT CONDITIONS AND COMMENTS ➀ ➂ Operating voltage range 18 48 75 Vdc Recommended External Fuse Fast blow 10 A Start-up threshold, Turn On Rising input voltage 17 17.5 17 Vdc Undervoltage shutdown, Turn Off : @10A load Falling input voltage 15.5 16 17.5 Vdc Turn-On/Turn-Off Hysteresis 1 1.5 Vdc Overvoltage shutdown NA Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type L-C-type Input current Full Load Conditions Vin = nominal 2.30 2.36 A Low Line Vin = minimum 6.11 6.27 A Inrush Transient 0.1 A2-Sec. Short Circuit Input Current 250 350 mA No Load Input Current Iout = minimum, unit=ON 100 135 mA Standby Mode Input Current (Off, UV, OT) 5 10 mA no filtering 500 600 mA, P-P Reflected (back) ripple current ➁ Measured at input with specified filter 30 40 mA, P-P Reflected (back) ripple current ➁ Pre-biased startup Monotonic GENERAL AND SAFETY Vin=24V, full load 90.5 92 % Efficiency Vin=min. to max. 89.5 91 % Vin=48V, full load 89 90.5 % Isolation Isolation Voltage, input to output No baseplate 2250 Vdc Isolation Voltage, input to output With baseplate 2250 Vdc Isolation Voltage, input to baseplate With baseplate 1500 Vdc Isolation Voltage, output to baseplate With baseplate 750 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1000 pF Certified to UL-60950-1, CSA-C22.2 No.60950-1, Safety Yes IEC/EN60950-1, 2nd edition (pending) Per Telcordia SR332, issue 1, class 3, ground Calculated MTBF TBD Hours x 103 fixed, Tambient=+40C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 200 225 250 KHz Startup Time Power on, Vout regulated 20 30 mS Startup Time Remote ON to Vout regulated 20 30 mS 50-75-50% load step, settling time to within Dynamic Load Response 100 200 μSec 2% of Vout. Dynamic Load Peak Deviation same as above ±450 mV FEATURES AND OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state ON = Pin grounded or external voltage 0 0.8 V Negative Logic, OFF state OFF = Pin open or external voltage 3.5 15 V Control Current open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 5 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.8 V Control Current open collector/drain 1 2 mA Base Plate "B" suffix Output Current www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 8 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-5/20-Q48-C (CONT.) OUTPUT Total Output Power Voltage Nominal Output Voltage Settling Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading MECHANICAL (THROUGH HOLE MODELS) Outline Dimensions (Please refer to outline drawing) Weight (without baseplate) 0 100 101 W 4.95 -1 -10 5 6.5 5.05 1 10 7 Vdc % of Vset. % of Vnom. Vdc 0 20 20 A 23 27 32 A Hiccup technique, autorecovery within ±1% of Vout 1.5 2.5 A Output shorted to ground, no damage Continuous 110 % of Vout % of Vout mV pk-pk % of Vout./°C μF No trim At 50% load User-adjustable (see trim formulas) Via magnetic feedback No minimum load 98% of Vnom., after warmup Hiccup current limiting Vin=min. to max., Vout=nom., nom load Iout=min. to max 5 Hz- 20 MHz BW At all outputs Low ESR ±0.1 ±0.2 75 0.02 0 2.3x.9x.39 58.42x22.86x9.91 0.7 20 12.9 36.5 0.062 & 0.04 1.575 & 1.016 Copper alloy 50 5 Aluminum LxWxH Weight (with baseplate) Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Baseplate Material ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Operating Base Plate Temp Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Radiated, EN55022/CISPR22 RoHS rating Notes Diameter of pins standard Nickel subplate Gold overplate See derating Vin = Zero (no power) No derating required Measured at hotspot External filter is required ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, airflow of 300lfm for extended operation time. All models are tested and specified with external parallel 1 μF and 10 μF output capacitors. A 33μF external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. 10,000 -40 -55 -40 135 140 B B RoHS-6 Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches 85 125 105 150 °C °C °C Class Class ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. Please be aware of small details that may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. ➅ If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external input fuse in series with the +VIN input. Use approximately twice the full input current rating with nominal input voltage. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 9 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-5/20-Q48-C Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Line and Load 95 15 91 13 Dissipation (Watts) 87 Efficiency (%) 83 79 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 75 71 67 63 11 9 7 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 5 3 59 1 55 2 4 6 8 10 12 14 16 18 2 20 4 6 8 10 12 14 16 18 20 Load Current (Amps) Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 1 to Pin 3, with baseplate) Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 1 to Pin 3, no baseplate) 21 21 20 20 19 19 Output Current (Amps) Output Current (Amps) 18 17 16 0.33 m/s (65 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) 15 14 13 18 17 0.33 m/s (65 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) 16 15 12 14 11 10 13 30 35 40 45 50 55 60 Ambient Temperature (°C) 65 70 75 80 85 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 10 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-5/20-Q48-C Startup Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=20A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=20A, Cout=10000μF, Ta=+25°C) Trace1=Vin, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=20A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=20A, Cout=10000μF, Ta=+25°C) Trace1=Enable, Trace2=Vout. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 11 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-5/20-Q48-C Stepload Transient Response (Vin=48V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF , Slew rate: 10A/uS at Ta=+25°C) Stepload Transient Response (Vin=48V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF ||10000μF , Slew rate: 10A/uS at Ta=+25°C) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=0A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=20A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Thermal image with hot spot at 17A current with 25°C ambient temperature. Natural convection is used with no forced airflow. Identifiable and recommended maximum value to be verifi ed in application. Vin=48V, Q14 is the hot spot. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 12 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-12/10-Q48 ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power CONDITIONS AND COMMENTS ➀ Full power operation Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin MINIMUM TYPICAL/NOMINAL MAXIMUM 80 UNITS Vdc 100 Vdc 2250 Vdc Vdc Vdc W None 0 0 15 121.2 Current-limited, no damage, 0 10 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT CONDITIONS AND COMMENTS ➀ ➂ Operating voltage range 18 48 75 Vdc Recommended External Fuse Fast blow A 15 ➅ Start-up threshold, Turn On Rising input voltage 17 17.5 17.9 Vdc Undervoltage shutdown, Turn Off Falling input voltage 16 16.45 17.5 Vdc Turn-On/Turn-Off Hysteresis 0.81 0.86 Vdc Overvoltage shutdown NA Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type Pi-type Input current Full Load Conditions Vin = nominal 2.732 2.806 A Low Line Vin = minimum 7.286 7.481 A Inrush Transient 0.1 A2-Sec. Output in Short Circuit 100 150 mA No Load Input Current (Iout @ min) Iout = minimum, unit=ON 110 150 mA Shut-Down Mode Input Current 4 8 mA no filtering 400 500 mA, P-P Reflected (back) ripple current ➁ Measured at input with specified filter 40 50 mA, P-P Reflected (back) ripple current ➁ Pre-biased startup Monotonic GENERAL AND SAFETY Vin=24V, full load 90.5 92.5 % Efficiency Vin=min. 90 91.5 % Vin=48V, full load 90 91.5 % Isolation Isolation Voltage, input to output No baseplate 2250 Vdc Isolation Voltage, input to output With baseplate 2250 Vdc Isolation Voltage, input to baseplate With baseplate 1500 Vdc Isolation Voltage, output to baseplate With baseplate 500 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1000 pF Certified to UL-60950-1, CSA-C22.2 No.60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground Calculated MTBF 3.1 Hours x 106 fixed, Tambient=+25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 200 220 240 KHz Startup Time Power on to Vout regulated 30 40 mS Startup Time Remote ON to Vout regulated 20 30 mS 50-75-50% load step, settling time to within Dynamic Load Response 100 200 μSec ±2% of Vout Dynamic Load Peak Deviation same as above ±650 mV FEATURES AND OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state ON = Pin grounded or external voltage 1 1 V Negative Logic, OFF state OFF = Pin open or external voltage 3.5 15 V Control Current open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 3.5 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.8 V Control Current open collector/drain 1 2 mA Base Plate "B" suffix Output Current www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 13 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-12/10-Q48 (CONT.) OUTPUT Total Output Power Voltage Nominal Output Voltage Setting Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading MECHANICAL (THROUGH HOLE MODELS) Outline Dimensions (Please refer to outline drawing) Weight (without baseplate) 0 120 121.2 W 11.88 -1 -10 12 15 12.12 1 10 16 Vdc % of Vset. % of Vnom. Vdc 0 10 10 A 11.5 12.5 14 A Hiccup technique, autorecovery within ±1% of Vout 1 2 A Output shorted to ground, no damage Continuous 200 % of Vout % of Vout mV pk-pk % of Vout./°C μF No trim At 50% load User-adjustable Via magnetic feedback No minimum load 98% of Vnom., after warmup Hiccup current limiting Vin=min. to max., Vout=nom., nom load Iout=min. to max 5 Hz- 20 MHz BW At all outputs Low ESR 0 2.3x.9x.39 58.42x22.86x9.91 0.7 20 12.9 36.5 0.062 & 0.04 1.575 & 1.016 Copper alloy 50 5 Aluminum LxWxH Weight (with baseplate) Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Baseplate Material ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Operating Base Plate Temp Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Radiated, EN55022/CISPR22 RoHS rating Notes Diameter of pins standard Nickel subplate Gold overplate See derating curves Vin = Zero (no power) No derating required Measured at hotspot External filter is required ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, airflow rate of 300lfm for extended operation time. All models are tested and specified with external parallel 1 μF and 10 μF output capacitors. A 33μF external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. ±0.15 ±0.075 115 0.02 4700 -40 -55 -40 135 140 B B RoHS-6 Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches 85 125 100 150 °C °C °C Class Class ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. Please be aware of small details that may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. ➅ If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external input fuse in series with the +VIN input. Use approximately twice the full input current rating with nominal input voltage. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 14 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q48 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Line and Load 95 13 91 87 Dissipation (Watts) 11 Efficiency (%) 83 79 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 75 71 67 63 9 7 Vin = 18V Vin = 24V Vin = 36V Vin = 48V Vin = 60V Vin = 75V 5 3 59 1 55 1 2 3 4 5 6 7 8 9 1 10 2 3 4 Load Current (Amps) 10 9 9 Output Current (Amps) 11 10 Output Current (Amps) 11 8 0.33 m/s (65 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) 6 5 7 8 9 10 8 0.33 m/s (65 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) 7 6 5 4 4 3 30 35 40 45 50 55 60 65 70 75 80 3 85 30 35 40 45 Ambient Temperature (°C) 10 10 9 9 Output Current (Amps) 11 0.33 m/s (65 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) 7 55 60 65 70 75 80 85 80 85 Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 1 to Pin 3, with baseplate) 11 8 50 Ambient Temperature (°C) Maximum Current Temperature Derating @sea level (VIN = 48V, air flow from Pin 1 to Pin 3, no baseplate) Output Current (Amps) 6 Maximum Current Temperature Derating @sea level (VIN = 24V, air flow from Pin 1 to Pin 3, with baseplate) Maximum Current Temperature Derating @ sea level (VIN = 24V, air flow from Pin 1 to Pin 3, no baseplate) 7 5 Load Current (Amps) 6 8 6 5 5 4 4 3 0.33 m/s (65 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) 7 3 30 35 40 45 50 55 60 Ambient Temperature (°C) 65 70 75 80 85 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 15 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q48 Startup Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=10A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=48V, Iout=10A, Cout=4700μF, Ta=+25°C) Trace1=Vin, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=10A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=48V, Iout=10A, Cout=4700μF, Ta=+25°C) Trace1=Enable, Trace2=Vout. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 16 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q48 Stepload Transient Response (Vin=48V, Iout=50-100-50% of Iout, Cload= 1μF || 10μF, Slew rate: 5A/uS at Ta=+25°C) Stepload Transient Response (Vin=48V, Iout=50-100-50% of Iout, Cload= 1μF || 10μF || 4700μF, Slew rate: 5A/uS at Ta=+25°C) Stepload Transient Response (Vin=48V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF || 4700μF, Slew rate: 5A/uS at Ta=+25°C) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=0A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=10A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz)) Output Ripple and Noise (Vin=48V, Vout=nom, Iout=10A, Cout=1F || 10μF || 4700μF, Ta=+25°C, ScopeBW=20Mhz)) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 17 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q48 Thermal image with hot spot at 8.24A current with 25°C ambient temperature. Natural convection is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=48V, Q14 is the hot spot. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 18 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-12/10-Q12 ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Input Voltage, Transient Isolation Voltage Input Reverse Polarity On/Off Remote Control Output Power CONDITIONS AND COMMENTS ➀ Full power operation Operating or non-operating, 100 mS max. duration Input to output None, install external fuse Power on or off, referred to -Vin MINIMUM TYPICAL/NOMINAL MAXIMUM 36 UNITS Vdc 50 Vdc 15 121.2 Vdc Vdc Vdc W None 0 0 Current-limited, no damage, 0 10 A short-circuit protected Storage Temperature Range Vin = Zero (no power) -55 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT CONDITIONS AND COMMENTS ➀ ➂ Operating voltage range 9 12 36 Vdc Recommended External Fuse Fast blow 20 A Start-up threshold, Turn On Rising input voltage 9.5 10 10.5 Vdc Undervoltage shutdown, Turn Off Falling input voltage 7.5 8 8.9 Vdc Turn-On/Turn-Off Hysteresis 1 2 Vdc Overvoltage shutdown NA Vdc Reverse Polarity Protection None, install external fuse None Vdc Internal Filter Type Pi-type Input current Full Load Conditions Vin = nominal 10.95 11.29 A Low Line Vin = minimum 14.73 15.13 A Inrush Transient 0.1 A2-Sec. Output in Short Circuit 100 150 mA No Load Input Current (Iout @ min) Iout = minimum, unit=ON 260 340 mA Shut-Down Mode Input Current 5 8 mA no filtering 200 250 mA, P-P Reflected (back) ripple current ➁ Measured at input with specified filter 20 30 mA, P-P Reflected (back) ripple current ➁ Pre-biased startup Monotonic GENERAL AND SAFETY Vin=12V, full load 89.5 91.3 % Efficiency Vin=min. 89 90.5 % Vin=24V, full load 89.5 91.4 % Isolation Isolation Voltage, input to output No baseplate 2250 Vdc Isolation Voltage, input to output With baseplate 2250 Vdc Isolation Voltage, input to baseplate With baseplate 1500 Vdc Isolation Voltage, output to baseplate With baseplate 750 Vdc Insulation Safety Rating basic Isolation Resistance 100 MΩ Isolation Capacitance 1000 pF Certified to UL-60950-1, CSA-C22.2 No.60950-1, Safety Yes IEC/EN60950-1, 2nd edition Per Telcordia SR332, issue 1, class 3, ground Calculated MTBF TBC Hours x 106 fixed, Tambient=+25°C DYNAMIC CHARACTERISTICS Fixed Switching Frequency 200 220 240 KHz Startup Time Power on to Vout regulated 25 40 mS Startup Time Remote ON to Vout regulated 25 40 mS 50-75-50% load step, settling time to within Dynamic Load Response 50 100 μSec ±2% of Vout Dynamic Load Peak Deviation same as above ±110 ±200 mV FEATURES AND OPTIONS Remote On/Off Control ➃ “N” suffix: Negative Logic, ON state ON = Pin grounded or external voltage 0 1 V Negative Logic, OFF state OFF = Pin open or external voltage 3.5 15 V Control Current open collector/drain 1 2 mA “P” suffix: Positive Logic, ON state ON = Pin open or external voltage 3.5 15 V Positive Logic, OFF state OFF = Ground pin or external voltage 0 0.8 V Control Current open collector/drain 1 2 mA Base Plate "B" suffix Output Current www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 19 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters FUNCTIONAL SPECIFICATIONS, UWE-12/10-Q12 (CONT.) OUTPUT Total Output Power Voltage Nominal Output Voltage Setting Accuracy Output Voltage Range Overvoltage Protection Current Output Current Range Minimum Load Current Limit Inception Short Circuit Short Circuit Current Short Circuit Duration (remove short for recovery) Short circuit protection method Regulation Line Regulation Load Regulation Ripple and Noise ➁ Temperature Coefficient Maximum Capacitive Loading MECHANICAL (THROUGH HOLE MODELS) Outline Dimensions (Please refer to outline drawing) Weight (without baseplate) 0 120 121.2 W 11.88 -1 -10 12 12.12 1 10 16 Vdc % of Vset. % of Vnom. Vdc 10 A 13.5 15.5 A Hiccup technique, autorecovery within ±1% of Vout 1 2 A Output shorted to ground, no damage Continuous 200 % of Vout % of Vout mV pk-pk % of Vout./°C μF No trim At 50% load User-adjustable Via magnetic feedback 15 0 No minimum load 98% of Vnom., after warmup 11.5 Hiccup current limiting Vin=min. to max., Vout=nom., nom load Iout=min. to max 5 Hz- 20 MHz BW At all outputs Low ESR 0 2.3x.9x0.34 58.42x22.86x8.64 0.7 20 12.9 36.5 0.062 & 0.04 1.575 & 1.016 Copper alloy 50 5 Aluminum LxWxH Weight (with baseplate) Through Hole Pin Diameter Through Hole Pin Material TH Pin Plating Metal and Thickness Baseplate Material ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature Operating Base Plate Temp Thermal Protection/Shutdown Electromagnetic Interference Conducted, EN55022/CISPR22 Radiated, EN55022/CISPR22 RoHS rating Notes Diameter of pins standard Nickel subplate Gold overplate See derating curves Vin = Zero (no power) No derating required Measured at hotspot External filter is required ➀ Unless otherwise noted, all specifications are at nominal input voltage, nominal output voltage and full load. General conditions are +25˚ Celsius ambient temperature, near sea level altitude, airflow rate of 300lfm for extended operation time. All models are tested and specified with external parallel 1 μF and 10 μF output capacitors. A 33μF external input capacitor is used. All capacitors are low-ESR types wired close to the converter. These capacitors are necessary for our test equipment and may not be needed in the user’s application. ➁ Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is Cbus=220 μF, Cin=33 μF and Lbus=12 μH. ➂ All models are stable and regulate to specification under no load. ➃ The Remote On/Off Control is referred to -Vin. For external transistor control, use open collector logic or equivalent. ±0.15 ±0.075 115 0.02 4700 -40 -55 -40 135 140 B B RoHS-6 Inches mm Ounces Grams Ounces Grams Inches mm μ-inches μ-inches 85 125 100 150 °C °C °C Class Class ➄ NOTICE—Please use only this customer data sheet as product documentation when laying out your printed circuit boards and applying this product into your application. Do NOT use other materials as official documentation such as advertisements, product announcements, or website graphics. We strive to have all technical data in this customer data sheet highly accurate and complete. This customer data sheet is revision-controlled and dated. The latest customer data sheet revision is normally on our website (www.murata-ps.com) for products which are fully released to Manufacturing. Please be especially careful using any data sheets labeled “Preliminary” since data may change without notice. Please be aware of small details that may affect your application and PC board layouts. Study the Mechanical Outline drawings, Input/Output Connection table and all footnotes very carefully. Please contact Murata Power Solutions if you have any questions. ➅ If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external input fuse in series with the +VIN input. Use approximately twice the full input current rating with nominal input voltage. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 20 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q12 Efficiency vs. Line Voltage and Load Current @ 25°C Power Dissipation vs. Line and Load 15 95 Dissipation (Watts) 90 Efficiency (%) 85 Vin = 9V Vin = 12V Vin = 18V Vin = 24V Vin = 30V Vin = 36V 80 75 10 Vin = 9V Vin = 12V Vin = 18V Vin = 24V Vin = 30V Vin = 36V 5 70 65 0 1 2 3 4 5 6 7 8 9 10 1 2 3 4 11 10 10 9 9 Output Current (Amps) Output Current (Amps) 11 8 0.33 m/s (65 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) 6 7 8 9 10 0.33 m/s (65 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) 8 7 6 5 30 35 40 45 50 55 60 65 70 75 80 5 85 30 35 40 45 Ambient Temperature (°C) 10 10 9 9 Output Current (Amps) 11 0.33 m/s (65 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) 7 55 60 65 70 75 80 85 80 85 Maximum Current Temperature Derating @sea level (VIN = 12V, air flow from Pin 1 to Pin 3, with baseplate) 11 8 50 Ambient Temperature (°C) Maximum Current Temperature Derating @ sea level (VIN = 12V, air flow from Pin 1 to Pin 3, no baseplate) Output Current (Amps) 6 Maximum Current Temperature Derating @sea level (VIN = 9V, air flow from Pin 1 to Pin 3, with baseplate) Maximum Current Temperature Derating @ sea level (VIN = 9V, air flow from Pin 1 to Pin 3, no baseplate) 7 5 Load Current (Amps) Load Current (Amps) 6 0.33 m/s (65 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) 8 7 6 5 30 35 40 45 50 55 60 Ambient Temperature (°C) 65 70 75 80 85 5 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 21 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q12 Maximum Current Temperature Derating @sea level (VIN = 18V, air flow from Pin 1 to Pin 3, with baseplate) 11 11 10 10 9 Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating @ sea level (VIN = 18V, air flow from Pin 1 to Pin 3, no baseplate) 0.33 m/s (65 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) 8 7 6 9 0.33 m/s (65 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) 8 7 6 5 30 35 40 45 50 55 60 65 70 75 80 5 85 30 35 40 45 Ambient Temperature (°C) 11 11 10 10 9 Output Current (Amps) Output Current (Amps) 60 65 70 75 80 85 80 85 80 85 Maximum Current Temperature Derating @sea level (VIN = 24V, air flow from Pin 1 to Pin 3, with baseplate) 0.33 m/s (65 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) 7 6 9 0.33 m/s (65 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) 8 7 6 5 30 35 40 45 50 55 60 65 70 75 80 5 85 30 35 40 45 Ambient Temperature (°C) 50 55 60 65 70 75 Ambient Temperature (°C) Maximum Current Temperature Derating @ sea level (VIN = 36V, air flow from Pin 1 to Pin 3, no baseplate) Maximum Current Temperature Derating @sea level (VIN = 36V, air flow from Pin 1 to Pin 3, with baseplate) 11 11 10 10 9 9 8 8 0.33 m/s (65 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) 7 6 5 Output Current (Amps) Output Current (Amps) 55 Ambient Temperature (°C) Maximum Current Temperature Derating @ sea level (VIN = 24V, air flow from Pin 1 to Pin 3, no baseplate) 8 50 4 3 0.33 m/s (65 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) 7 6 5 4 3 2 2 1 1 0 30 35 40 45 50 55 60 Ambient Temperature (°C) 65 70 75 80 85 0 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (°C) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 22 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q12 Startup Delay (Vin=12V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=12V, Iout=10A, Cout=0, Ta=+25°C) Trace1=Vin, Trace2=Vout. Startup Delay (Vin=12V, Iout=10A, Cout=5000μF, Ta=+25°C) Trace1=Vin, Trace2=Vout. On/Off Enable Delay (Vin=12V, Iout=0A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=12V, Iout=10A, Cout=0, Ta=+25°C) Trace1=Enable, Trace2=Vout. On/Off Enable Delay (Vin=12V, Iout=10A, Cout=5000μF, Ta=+25°C) Trace1=Enable, Trace2=Vout. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 23 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q12 Stepload Transient Response (Vin=12V, Iout=50-100-50% of Iout, Cload= 1μF || 10μF, Slew rate: 5A/uS at Ta=+25°C) Stepload Transient Response (Vin=12V, Iout=50-100-50% of Iout, Cload= 1μF || 10μF || 5000μF, Slew rate: 5A/uS at Ta=+25°C) Stepload Transient Response (Vin=12V, Iout=50-75-50% of Iout, Cload= 1μF || 10μF || 5000μF, Slew rate: 5A/uS at Ta=+25°C) Output Ripple and Noise (Vin=12V, Vout=nom, Iout=0A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz) Output Ripple and Noise (Vin=12V, Vout=nom, Iout=10A, Cout=1F || 10μF, Ta=+25°C, ScopeBW=20Mhz)) Output Ripple and Noise (Vin=12V, Vout=nom, Iout=10A, Cout=1F || 10μF || 5000μF, Ta=+25°C, ScopeBW=20Mhz)) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 24 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters PERFORMANCE DATA, UWE-12/10-Q12 Thermal image with hot spot at 8.66A current with 25°C ambient temperature. Natural convection is used with no forced airflow. Identifiable and recommended maximum value to be verified in application. Vin=12V, Q6 is the hot spot. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 25 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters MECHANICAL SPECIFICATIONS—NO BASEPLATE 2.30 (58.4) TOP VIEW ISOMETRIC VIEW 0.90 (22.9) 0.071 (1.8)±.002 STANDOFF AT EACH 0.040 (1.02) PIN MTG PLANE 0.126 (3.17) SIDE VIEW 0.010 (0.254) MIN (HIGHEST COMP TO MTG PLANE) END VIEW Q12 = 0.39 0.34 (9.91) (8.64) 0.125 (3.175) REF 0.19 (4.83) 0.040 (1.02) ±.002 AT PINS 1-3, 5-7 0.062 (1.57) ±.002 AT PINS 4 & 8 DOSA-Compatible I/O Connections 0.15 (3.8) 2.000 (50.80) PIN 3 BOTTOM VIEW 0.600 (15.24) 0.300 0.45 (7.62) (11.43) Pin +Vin PIN 4 2 On/Off Control* PIN 5 3 –Vin 4 –Vout 5 –Sense 0.150 (3.81) 0.150 (3.81) PIN 2 PIN 1 Function 1 PIN 6 PIN 7 PIN 8 MATERIAL: .040 PINS: C26000 BRASS, 3/4 HARD .062 PINS: C10200 COPPER ALLOY, FULL HARD 0.600 (15.24) REF 6 Trim 7 +Sense 8 +Vout * The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) logic. Connect each sense input to its respective Vout if sense is not connected at a remote load. FINISH: (ALL PINS) GOLD (5 MICROINCHES MIN) OVER NICKEL (50 MICROINCHES MIN) Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 26 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters MECHANICAL SPECIFICATIONS (continued)—BASEPLATE INSTALLED See Note 1. Note 1. The (2) M3 holes are not installed on the baseplate of the UWE-12/10-Q12xB-C. Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 27 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters SHIPPING TRAYS AND BOXES Anti-static foam Label Label SHIPPING TRAY UWE modules are supplied in a 21-piece (3-by-7) shipping tray. The tray is an anti-static closed-cell polyethylene foam. Dimensions are shown below. 0.910 (23.1) TYP 9.920 (252) +0.000 -0.062 0.455 (11.6) TYP 0.735 (18.7) 9.920 (252) +0.000 -0.062 0.625 (15.9) TYP 2.400 (61) TYP Dimensions in inches (mm) 1.300 (33.0) TYP 1.06 (26.9) 0.25 R TYP 0.25 CHAMFER TYP (4-PL) 7.800 (198.1) www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 28 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters TECHNICAL NOTES Input Fusing Certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. Fuses should also be used if the possibility of sustained, non-current-limited, input-voltage polarity reversals exist. For MPS UWE DC-DC Converters, you should use fast-blow type fuses, installed in the ungrounded input supply line. Refer to the specifications for fuse values. All relevant national and international safety standards and regulations must be observed by the installer. For system safety agency approvals, the converters must be installed in compliance with the requirements of the end-use safety standard, e.g., IEC/EN/UL60950-1. Fuse +VIN +VIN +VO RLOAD –VIN –VIN –VO Figure 2. Input Fusing Input Undervoltage Shutdown and Start-Up Threshold Under normal start-up conditions, devices will not begin to regulate until the ramping-up input voltage exceeds the Start-Up Threshold Voltage. Once operating, devices will not turn off until the input voltage drops below the Undervoltage Shutdown limit. Subsequent re-start will not occur until the input is brought back up to the Start-Up Threshold. This built in hysteresis prevents any unstable on/off situations from occurring at a single input voltage. Start-Up Time The VIN to VOUT Start-Up Time is the interval of time between the point at which the ramping input voltage crosses the Start-Up Threshold and the fully loaded output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input/output capacitance, and load. The UWE Series implements a soft start circuit that limits the duty cycle of its PWM controller at power up, thereby limiting the input inrush current. Input Source Impedance UWE converters must be driven from a low ac-impedance input source. The DC-DC’s performance and stability can be compromised by the use of highly inductive source impedances. For optimum performance, components should be mounted close to the DC-DC converter. If the application has a high source impedance, low VIN models can benefit from increased external input capacitance. I/O Filtering, Input Ripple Current, and Output Noise All models in the UWE Converters are tested/specified for input reflected ripple current and output noise using the specified external input/output components/ circuits and layout as shown in the following two figures. External input capacitors (CIN in Figure 3) serve primarily as energy-storage elements, minimizing line voltage variations caused by transient IR drops in conductors from backplane to the DC-DC. Input caps should be selected for bulk capacitance (at appropriate frequencies), low ESR, and high rms-ripple-current ratings. The switching nature of DC-DC converters requires that dc voltage sources have low ac impedance as highly inductive source impedance can affect system stability. In Figure 3, CBUS and LBUS simulate a typical dc voltage bus. Your specific system configuration may necessitate additional considerations. In critical applications, output ripple/noise (also referred to as periodic and random deviations or PARD) may be reduced below specified limits using filtering techniques, the simplest of which is the installation of additional external output capacitors. These output caps function as true filter elements and should be selected for bulk capacitance, low ESR and appropriate frequency response. All external capacitors should have appropriate voltage and current ratings, and be located as close to the converter as possible. Temperature variations for all relevant parameters should also be taken carefully into consideration. The most effective combination of external I/O capacitors will be a function of line voltage and source impedance, as well as particular load and layout conditions. TO OSCILLOSCOPE CURRENT PROBE + VIN +VIN LBUS CBUS CIN – The On/Off Control to VOUT start-up time assumes the converter has its nominal input voltage applied but is turned off via the On/Off Control pin. The specification defines the interval between the point at which the converter is turned on and the fully loaded output voltage enters and remains within its specified accuracy band. Similar to the VIN to VOUT start-up, the On/Off Control to VOUT start-up time is also governed by the internal soft start circuitry and external load capacitance. –VIN CIN = 33μF, ESR < 700mΩ @ 100kHz CBUS = 220μF, ESR < 100mΩ @ 100kHz LBUS = 12μH Figure 3. Measuring Input Ripple Current The difference in start up time from VIN to VOUT and from On/Off Control to VOUT is therefore insignificant. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 29 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters +SENSE +VOUT C1 C2 SCOPE RLOAD –VOUT –SENSE C1 = 1μF C2 = 10μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 4. Measuring Output Ripple/Noise (PARD) Floating Outputs Since these are isolated DC-DC converters, their outputs are "floating" with respect to their inputs. Designers will normally use the –Output as the ground/ return of the load circuit. You can, however, use the +Output as ground/return to effectively reverse the output polarity. Minimum Output Loading Requirements UWE converters employ a synchronous-rectifier design topology and all models regulate within spec and are stable under no-load to full load conditions. Operation under no-load conditions however might slightly increase the output ripple and noise. Thermal Shutdown These UWE converters are equipped with thermal-shutdown circuitry. If environmental conditions cause the internal temperature of the DC-DC converter to rise above the designed operating temperature, a precision temperature sensor will power down the unit. When the internal temperature decreases below the threshold of the temperature sensor, the unit will self start. See Performance/ Functional Specifications. Output Overvoltage Protection UWE output voltages are monitored for an overvoltage condition via magnetic feedback. The signal is coupled to the primary side and if the output voltage rises to a level which could be damaging to the load, the sensing circuitry will power down the PWM controller causing the output voltages to decrease. Following a time-out period the PWM will restart, causing the output voltages to ramp to their appropriate values. If the fault condition persists, and the output voltages again climb to excessive levels, the overvoltage circuitry will initiate another shutdown cycle. This on/off cycling is referred to as "hiccup" mode. Current Limiting As soon as the output current increases to substantially above its rated value, the DC-DC converter will go into a current-limiting mode. In this condition, the output voltage will decrease proportionately with increases in output current, thereby maintaining somewhat constant power dissipation. This is commonly referred to as power limiting. Current limit inception is defined as the point at which the full-power output voltage falls below the specified tolerance. See Performance/Functional Specifications. If the load current, being drawn from the converter, is significant enough, the unit will go into a short circuit condition as specified under "Performance." Short Circuit Condition When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low, the magnetically coupled voltage used to develop primary side voltages will also drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart causing the output voltages to begin ramping to their appropriate values. If the short-circuit condition persists, another shutdown cycle will be initiated. This on/off cycling is referred to as "hiccup" mode. The hiccup cycling reduces the average output current, thereby preventing internal temperatures from rising to excessive levels. The UWE is capable of enduring an indefinite short circuit output condition. Features and Options On/Off Control The input-side, remote On/Off Control function can be ordered to operate with either logic type: Positive-logic models (“P" part-number suffix) are enabled when the On/Off Control is left open or is pulled high, as per Figure 5. Positive-logic devices are disabled when the On/Off Control is pulled low. Negative-logic devices (“N” suffix) are off when the On/Off Control is open (or pulled high), and on when the On/Off Control is pulled low with respect to –VIN (see Figure 5). Dynamic control of the remote on/off function is facilitated with a mechanical relay or an open-collector/open-drain drive circuit (optically isolated if appropriate). The drive circuit should be able to sink appropriate current (see Performance Specs) when activated and withstand appropriate voltage when deactivated. + Vcc ON/OFF CONTROL CONTROL -VIN Figure 5. Driving the Logic On/Off Control Pin Trimming Output Voltage UWE converters have a trim capability that allows users to adjust the output voltages. Adjustments to the output voltages can be accomplished via a trim pot (Figure 6) or a single fixed resistor as shown in Figures 7 and 8. A single fixed resistor can increase or decrease the output voltage depending on its connection. The resistor should be located close to the converter and have a TCR less than 100ppm/°C to minimize sensitivity to changes in temperature. If the trim function is not used, leave the trim pin floating. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 30 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters Trim Equations +VOUT +VIN Trim Up +SENSE ON/OFF CONTROL Trim Down 3.3 Volt Output 1MΩ 5-20 TURNS TRIM LOAD RT UP (kΩ) = –SENSE 13.3(VO – 1.226) –10.2 VO – 3.3 RTDOWN (kΩ) = 16.31 –10.2 3.3 – VO 5 Volt Output –VIN –VOUT RT UP (kΩ) = Figure 6. Trim Connections Using a Trimpot 20.4(VO – 1.226) –10.2 VO – 5 RTDOWN (kΩ) = 25.01 5 – VO –10.2 12 Volt Output +VIN +VOUT RT UP (kΩ) = 49.6(VO – 1.226) VO – 12 –10.2 RTDOWN (kΩ) = 60.45 12 – VO –10.2 +SENSE ON/OFF CONTROL TRIM LOAD R1 –SENSE –VIN –VOUT Figure 7. Trim Connections to Increase Output Voltages Using a Fixed Resistor +VIN +VOUT +SENSE ON/OFF CONTROL TRIM Trim adjustments greater than the specified range can have an adverse affect on the converter's performance and are not recommended. Excessive voltage differences between VOUT and Sense, in conjunction with trim adjustment of the output voltage, can cause the overvoltage protection circuitry to activate (see Performance Specifications for overvoltage limits). Power derating is based on maximum output current and voltage at the converter’s output pins. Use of trim and sense functions can cause output voltages to increase, thereby increasing output power beyond the converter's specified rating or cause output voltages to climb into the output overvoltage region. Therefore: LOAD R2 –SENSE –VIN A single resistor connected from the Trim to the +Output, or +Sense where applicable, will increase the output voltage in this configuration. A resistor connected from the Trim to the –Output, or –Sense where applicable, will decrease the output voltage in this configuration. (VOUT at pins) x (IOUT) <= rated output power Note: Resistor values are in k. Adjustment accuracy is subject to resistor tolerances and factory-adjusted output accuracy. VO = desired output voltage. –VOUT Figure 8. Trim Connections to Decrease Output Voltages www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 31 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters Remote Sense Note The Sense and VOUT lines are internally connected through low value resistors. Nevertheless, if the sense function is not used for remote regulation the user should connect the +Sense to +VOUT and –Sense to –VOUT at the DC-DC converter pins. UWE series converters have a sense feature to provide point of use regulation, thereby overcoming moderate IR drops in pcb conductors or cabling. The remote sense lines carry very little current and therefore require minimal cross-sectional-area conductors. The sense lines are used by the feedback control-loop to regulate the output. As such, they are not low impedance points and must be treated with care in layouts and cabling. Sense lines on a pcb should be run adjacent to dc signals, preferably ground. In cables and discrete wiring applications, twisted pair or other techniques should be implemented. Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. 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: Maximum Preheat Temperature Maximum Pot Temperature Maximum Solder Dwell Time For Sn/Pb based solders: Maximum Preheat Temperature Maximum Pot Temperature Maximum Solder Dwell Time 115° C. 270° C. 7 seconds 105° C. 250° C. 6 seconds UWE series converters will compensate for drops between the output voltage at the DC-DC and the sense voltage at the DC-DC provided that: [VOUT(+) –VOUT(–)] –[Sense(+) –Sense (–)] 5% VOUT Output overvoltage protection is monitored at the output voltage pin, not the Sense pin. Therefore, excessive voltage differences between VOUT and Sense in conjunction with trim adjustment of the output voltage can cause the overvoltage protection circuitry to activate (see Performance Specifications for overvoltage limits). Power derating is based on maximum output current and voltage at the converter’s output pins. Use of trim and sense functions can cause output voltages to increase thereby increasing output power beyond the UWE’s specified rating or cause output voltages to climb into the output overvoltage region. Also, the use of Trim Up and Sense combined may not exceed +10% of VOUT. Therefore, the designer must ensure: (VOUT at pins) x (IOUT) rated output power Contact and PCB resistance losses due to IR drops +VOUT +VIN IOUT +SENSE Sense Current ON/OFF CONTROL TRIM LOAD Sense Return –SENSE IOUT Return –VIN –VOUT Contact and PCB resistance losses due to IR drops Figure 9. Remote Sense Circuit Configuration www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 32 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters Emissions Performance The sample was tested in accordance with CISPR/EN55022 requirements. Class B limits were applied for this test. The EUT was supplied with 48Vdc (nominal) and was loaded to the maximum rating 120 Watts. The noise was measured on the return side of supply. The following EMI filter components were employed. UWE EMI 120W Test Card 48Vdc in, 12Vout, 10Amps Conducted Emissions Test Results (UWE-12/10-Q48) Resistive Load UUT V+ Black C16 C8 C8 C8 C8 L3 C8 C8 C7 Vin + Vout + Vin - Vout - L1 C17 V- Resistive Load inside a metal container Figure 10. Conducted Emissions Test Circuit [1] Conducted Emissions Parts List Graph 1. Conducted emissions performance, CISPR 22, Class B, full load REFERENCE PART NUMBER DESCRIPTION VENDOR L1 PE-62913 1mH, 6A Pulse L3 500μh,10A, MPS 500μh,10A Murata C1, C2, C8 2.2μFd Murata C7 VZ Series Qty 2 - Electrolytic Capacitor 22μFd, 100V Panasonic C16, C17 .22μFd Unknown [2] Conducted Emissions Test Equipment Used Rohde & Schwarz EMI Test Receiver (9KHz – 1000MHz) ESPC Rohde & Schwarz Software ESPC-1 Ver. 2.20 HP11947A Transient Limiter (Agilent) OHMITE 25W – Resistor combinations DC Source Programmable DC Power Supply Model 62012P-100-50[3] [4] Layout Recommendations Most applications can use the filtering which is already installed inside the converter or with the addition of the recommended external capacitors. For greater emissions suppression, consider additional filter components and/or shielding. Emissions performance will depend on the user’s PC board layout, the chassis shielding environment and choice of external components. Please refer to Application Note GEAN02 for further discussion. Since many factors affect both the amplitude and spectra of emissions, we recommend using an engineer who is experienced at emissions suppression. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 33 of 34 UWE-100-120W Series Wide Input, Isolated Eighth-Brick DC-DC Converters Vertical Wind Tunnel IR Transparent optical window Unit under test (UUT) Variable speed fan IR Video Camera Murata Power Solutions employs a computer controlled custom-designed closed loop vertical wind tunnel, infrared video camera system, and test instrumentation for accurate airflow and temperature distribution measurements of power products. The system includes a precision low flow-rate anemometer, variable speed fan, power supply input and load controls, temperature gauges, and adjustable heating element. The IR camera monitors the thermal performance of the Unit Under Test (UUT) under static steady-state conditions. A special optical port is used which is transparent to infrared wavelengths. Heating element Precision low-rate anemometer 3” below UUT Ambient temperature sensor Airflow collimator Figure 11. Vertical Wind Tunnel Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Both through-hole and surface mount converters are soldered down to a 10" x 10" host carrier board for realistic heat absorption and spreading. Both longitudinal and transverse airflow studies are possible by rotation of this carrier board since there are often significant differences in the heat dissipation in the two airflow directions. The combination of adjustable airflow, adjustable ambient heat, and adjustable Input/Output currents and voltages mean that a very wide range of measurement conditions can be studied. The collimator reduces the amount of turbulence adjacent to the UUT by minimizing airflow turbulence. Such turbulence influences the effective heat transfer characteristics and gives false readings. Excess turbulence removes more heat from some surfaces and less heat from others, possibly causing uneven overheating. 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. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2016 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_UWE-100-120W.C01 Page 34 of 34