Fuji Electric FA5533
PFC / PWM Combination
| Part No. | FA5533 |
|---|---|
| Datasheet | FA5533 Download |
| Manufacturer |  Fuji Electric |
| Description | PFC / PWM Combination |
| Buy | Stock & Price |
FEATURES
FEATURES
●Critical mode Power Factor Correction and PWM are combined : suitable for smaller power supply●Internal start-up circuit with 500V rating and low frequency operation achieves 340mW input at no load when PFC stops.
● Small Output Capacitance : Linearly reduced frequency for light load makes small ripple voltage.
● PFC stops below half load ( only for FA5533 )
●Vcc rating 28V allows no series regulator for PW M_ FB LV BlockDiagram Diagram Block COMP MUL underdevelopment development under PFC_ IS ZCD AC LIGHT_ LOAD ZCD ERR PFC_ FB + MUL R TIMER R 1shot Overvoltage detection OVP LV OVP S + - R Q RESTART UVLO PFC_ REG_ OK LIGHT_ LOAD UVLO_ AC PFC_ OUT PFC section UVLO_ AC + UVLO_ AC LIGHT_ LOAD UVLO_ VCC VCC START off + LV - - + PFC_ REG_ OK VH Common section REG_ PFC on - AC detect ACD PW M_ REG_ OK REG_ PW M on PWM section PW M_ REG Q VCO OSC FOSC PW M_ DELAY Dma PW M T Q CLR 1shot T S R Q auxiliary winding to clamp Vcc voltage.
●Adjustable Soft Start time
●Auto-Restar...
