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高压隔离型/非隔离型电源参考设计
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High Voltage Isolated/Non-Isolated
Power Supply Reference Designs
Simple, low cost, dual output flyback converter using a MAX50520 50% duty cycle current
mode controller.
Specification:
Vin = +19.2V
Iout = 10mA to 45mA / output
Pout = 832mW nominal
Frequency = 275kHz fixed.
Efficiency ≥60%
Output Ripple ≤50mV pp
Brown-out hold time = 1ms from 19.2V
Input protection = reverse polarity.
Output Dynamic = <300mV for 700mA current step.
Output short circuit protection = yes
Height = 5.1mm, 2.5mm.
Operating Temperature = 0°C to +70°C no cooling, still air.
Isolation = 1500V primary-secondary; 500V secondary-to-secondary.
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