FA5530 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Quasi-Resonant IC

Quasi-Resonant IC FA5530/31/32
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• Internal start-up circuit with 500V rating and low
frequency operation achieves 140mW input at no load.
• Small Output Capacitance : Linearly reduced
ZCD
frequency for lighter load causes small ripple voltage.
•Suitable for Low Noise and High Efficiency about 90%
•Line-up of 3 types for maximum frequency and OLP
5530: 65kHz max.,16Vmax.-VCC,Auto-restart OLP _IS
5531:130kHz max.,28Vmax.-VCC,Auto-restart OLP
5532:130kHz max.,28Vmax.-VCC,Timer-Latched OLP
•High ability of driving Power MOSFET ( High / Low FB
side : 17 ohm / 3.5 ohm ) : available to 200W output
•Vcc rating 28V allows no series regulator for
auxiliary winding to clamp Vcc voltage for FA5531/32.
•1ms Fixed Soft Start time
•Timer Latched Over-Voltage Protection of 16V/28V Vcc
•8 pins package ( DIP/SO )
Valley
detection
Time out
(5µs)
5V
Reset
50uA
Max. fsw
Blanking
Variable
max.130kHz
5V
1 shot
(380ns)
CLR
Start up
VH
management Start up
Logic
Current
VCC
5V Reg.
Check
5V Reg.
UVLO
Internal
supply
9.85V/9.1V
20kΩ
125k
Current
comparator
SQ
R
Driver
OUT
125k
1V
Disable
Soft start
(1ms)
0.4V
Overload
3.3V
ZCD
OVP 2
Timer
190ms
1510ms
Reset
8V
VCC
OVP 1
28V
Timer
latch
(48µs)
GND
Usage : Notebook PC, LCD Monitor, LCD-TV etc.