MPD-8071-S Specification 8071-032811 SPECIFICATION FOR SWITCHING POWER SUPPLY M/N: MPD-8071-S Revision History th Mar. 28 2011 REV. Updated safety approvals status. MPD-8071-S Specification 8071-032811 1.0 INTRODUCTIONS The MPD-8071-S is a 72Watts triple outputs switching power supply, specially designed for microprocessor-based applications. DC input from 10V to 30V. 2.0 INPUT SPECIFICATIONS 2.1 Input Voltage This power supply can operate continuously from +10VDC to +30VDC, normal line is +24VDC. 2.2 Input current The maximum input current is 13A at 10VDC. 2.3 Inrush current The maximum inrush current will not exceed 25A at 12VDC input from a cold start, with exclusion of EMI capacitors. 3.0 OUTPUT SPECIFICATIONS 3.1 The load range Output Min. load Rated load Peak load Voltage accuracy +5V 0A 10A 14A 5.00V to 5.10V +12V 0A 1.5 A 3A 11.20V to 13.0V - 12V 0A 0.3 A -10.8V to -13.0V At factory, all outputs in 60% rated load conditions; the +5V output is set to between 5.00V and 5.10V, and the other outputs are checked to be within the specified voltage accuracy range. When input is 24V at ambient temperature 25ºC, peak load can keep 10 sec. but only for one of the output. As for the other outputs, they will be at rated load. 3.2 Ripple & Noise The peak-to-peak ripple and noise for +5V is less than 50mV, for the other are less than 100mV. Measuring is done by 15MHz band- width limited oscilloscope and terminated each output with a 0.47uF capacitor at rated loading, nominal line. 3.3 Line regulation The line regulation for each output is less than +-2% while measuring at rated loading and +-10% of input +12V and +24V changing. 3.4 Load regulation The load regulation for +5V is less than +/-3% for –12V is less than +8% / -3%, for +12V is less than + /- 5%, measuring is done by changing the measured output loading +/-40% from 60% rated load, and keep other outputs at 60% rated load and normal line. Proprietary Information 1 Magic Power Technology Co., Ltd. MPD-8071-S Specification 8071-032811 4.0 General features 4.1 Efficiency The efficiency is higher than 70% while measuring at DC 24V and rated load. 4.2 Protection For some reason the power supply fails to control itself, the build-in over voltage protection circuit will shut down the outputs to prevent damage to external circuits. The trip point of crowbar circuit is around 5.7V to 7.0V. The power supply will go into hiccup mode against short circuit or over load conditions, and will auto-recovery while fault conditions moved. The O.C.P. of +5V is 20A max. 5.0 ENVIRONMENT SPECIFICATIONS 5.1 Operating temperature 0℃ to 50℃ The continuously output is 70W with 42CFM forced air required. The continuously output is 50W with no fan. 5.2 Storage temperature -40℃ to 85℃ 5.3 Altitude Will operate properly at any altitude between 0 to 10000ft. 5.4 Humidity 10% to 90% Non-condensing. 6.0 INTERNATIONAL STANDARDS 6.1 Safety standards Designed to meet the following standards: UL 1950 CAN/CSA C22.2 No. 950-95 EN 60950-1: 2006+A11 6.2 EMI standards Designed to meet the following radiated limits: FCC docket 20780 curve ―B‖ EN 55022 class ‖B‖ 6.3 EMS standards Designed to meet the following standards: IEC-801-2 8KV air discharge IEC-801-3 3V/M IEC-801-4 2KV Proprietary Information 2 Magic Power Technology Co., Ltd. MPD-8071-S Specification 8071-032811 7.0 MECHANICAL SPECIFICATION 7.1 Dimensions Dimensions shown in mm as above; Tolerance specified is + -0.4mm. 7.2 Connectors TB1—DC input : 3 positions terminal block TB2—DC output : Molex 5273-08A or equivalent. TB3—for FAN use only : Molex 5045-02A or equivalent. 7.3 DC output pin assignment Pin 1. +5V 5. GND 2. +5V 6. GND 3. +5V 7. +12V 4. GND 8. -12V Proprietary Information 3 Magic Power Technology Co., Ltd.