MEGMEET MMP260-4.6U Switch Power Supply 4.6V 50A

The power supply unit consists of input stage, PFC stage, DC/DC stage, and control circuit. Input
stage includes surge protect circuit, EMC circuit, soft-start-up circuit, etc. This circuits help to meet
EMC regular of EN55022 etc. DC/DC stage delivers a desired output voltage. Control circuit carries
out many functions as OVP, OLP, OTP, loop control.
Main components functions are described as below:
 G2- input rectifier
 EC8- Input Capacitor
 Q1- PFC Mosfet
 D9- PFC Output Diode
 EC8- PFC Output Capacitor
 Q2&Q3- DC/DC Mosfet
 Q4&Q6- DC/DC Output Synchronic-Rectifiers
 EC1- Output Capacitor
 U- Isolated Opt couple for feedback control

Input Electrical Characteristics
Input voltage range: 90Vac to 264Vac
Normal voltage range :100Vac to 240Vac
Frequency range: 47Hz-63Hz
Max input ac current: 3.5A max at full load condition
Inrush current (cold state): 80Atyp peak@220Vac
Efficiency (full load): 87%min@220Vac
Leakage Current :Less Than 1 mA, @ 220Vac input
Normal output power: 230W
Input Fuse: T5AH/250Vac
Power Factor: >0.95 @ full Load 220Vac input

 Output Electrical Characteristics:

 Output Voltage & Current Regulation

Output Voltage : +4.6V

Regulation: ±5%

Min. current: 0A

Rated:  50A

Note:* The testing of peak current shall be performed under the peak current
pulse width within 100ms conditions