FA5533
FA5533 is PFC / PWM Combination manufactured by Fuji Electric.
PFC / PWM bination IC FA5533/34
Features
Features
- Critical mode Power Factor Correction and PWM are bined : 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
..
BlockDiagram Diagram Block
MUL underdevelopment development under
PFC_ IS
LIGHT_ LOAD
PFC_ FB
+
R TIMER R
1shot
Overvoltage detection
OVP LV
+
-...
