D1U2-D-400-12-HA4C DC/DC Front End Power Supply www.murata-ps.com PRODUCT OVERVIEW The D1U2-D-400-12-HA4C is a 400 watt, DC input, isolated front end power supply with a 12V main output and a 5V (15W) standby. It features active current sharing for 2 supplies operated in parallel. The supply may be hot plugged, it recovers from overtemperature faults, and has status LEDs on the front panel in addition to logic and PSMI status signals. The supply comes in a low profile 1U package and has >8W/cubic inch power density, making it ideal for delivering reliable, efficient power to servers, workstations, storage systems and other 12V distributed power systems. ORDERING GUIDE Power Output Power Output Main Standby Part Number Airflow High Line AC Low Line AC Output Output FEATURES D1U2-D-400-12-HA4C 400W 400W 12 5V Back to front n 400W output power INPUT CHARACTERISTICS n 12V main output Parameter Conditions Min. Nom. Max. Units n 5V standby output of 15W Voltage Operating Range -40 -48 -72 Turn-on Input Voltage Ramp up -43 -43.5 -44 Vdc n 1U sized dimensions 2.15x13.67x1.58 Turn-off Input Voltage Ramp down -38.5 -39 -39.5 Maximum current at Vin=-40Vdc 400W 15 A n 8.6 Watts per cubic inch density DC Inrush Current Cold start between 0 to 200msec 30 Apk n Efficiency 83% at full load, 48Vdc and 35% load 80 Efficiency (-40Vdc to -72Vdc) 50C 50% load 80 % including fan load 100% load 83 n N+1 redundancy capable, including hot plugging (2 in parallel) OUTPUT VOLTAGE CHARACTERISTICS n Active current sharing on 12V main output, Output Parameter Conditions Min. Typ. Max. Units Voltage ORing FET Voltage Set Point Accuracy 12.0 Vdc n Overvoltage, overcurrent, Line and Load Regulation 11.8 12.2 1 overtemperature protection 12V Ripple Voltage & Noise 20MHz Bandwidth 120 mV p-p Output Current 0 33.3 A n Internal cooling fan (variable speed) Load Capacitance 0 15,000 F 2 Voltage Set Point Accuracy 5.0 n PSMI and SMbus / I C interface with Vdc Line and Load Regulation 4.85 5.15 bicolor LED status indicators 1 5VSB Ripple Voltage & Noise 20MHz Bandwidth 50 mV p-p Output Current 0 3 A n RoHS compliant Load Capacitance 0 500 F 1 Ripple and noise are measured with 0.1 uF of ceramic capacitance and 10 uF of tantalum capacitance on each of the power supply outputs. A short coaxial cable with 50ohm scope termination is used. CB Test Certificate and Test Report For full details go to For full details go to www.murata-ps.com/rohs www.murata-ps.com/rohs www.murata-ps.com/support CPS D1U2-D-400-12-HA4C.A02.D4 Page 1 of 6D1U2-D-400-12-HA4C DC/DC Front End Power Supply OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Output Rise Monotonicity No voltage excursion Start-up Time DC ramp up 1.5 2.0 s 12V, 30-70% load step, 1A/s di/dt 3 Transient Response 5VSB, 30-70% load step, 0.1A/s di/dt 3 % Current sharing accuracy (up to 2 in parallel) At 100% load 10 Hot Swap Transients All outputs within regulation Hold-up Time 8 ms ENVIRONMENTAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Storage Temperature Range -40 70 C Operating Temperature Range 0 50 Operating Humidity Noncondensing 10 90 % Storage Humidity 5 95 Altitude (without derating at 55C) 3,000 m Shock 30G non operating Sinusoidal Vibration 0.5G, 5 500 Hz MTBF Calculated per Telcordia SR332M1C1 25C 300K hrs CSA/UL 60950-1-07-2nd Ed. IEC 60950-1:2005 (2nd Edition) Safety Approvals EN 60950-1:2006 +A11 CE Marking per LV DIRECTIVE 2006/95/EC Input Fuse Power Supply has internal 20A/125V fast blow fuses on both DC lines Material Flammability UL 94V-0 Switching Frequency 200KHz for Main Output Converter Weight 2.01lbs (0.912kg) PROTECTION CHARACTERISTICS Output Parameter Conditions Min. Typ. Max. Units Voltage Overtemperature (intake) Autorestart 65 70 75 C Overvoltage Latching 14.0 14.5 V 12V Overcurrent Hiccup 115 130 % Overvoltage Latching 5.7 5.9 V 5VSB Overcurrent Autorecovery 4.4 6.0 A ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Input to Output - Reinforced 3000 Vrms Insulation Safety Rating / Test Voltage Input to Chassis - Basic 1500 Vrms Isolation Output to Chassis 500 Vrms Material Flammability UL 94V-0 CONTROL SIGNALS Condition LED Status Standby - ON Main output - OFF DC PRESENT Blinking green Standby - ON Main output - ON Solid green Main/standby output overcurrent, undervoltage, overvoltage warning Blinking yellow FAN FAULT overtemperature stand-by overcurrent, undervoltage Yellow www.murata-ps.com/support CPS D1U2-D-400-12-HA4C.A02.D4 Page 2 of 6