Description
of pins
Pin No.Pin name
1
FB
2
VCMP
3
VDET
4
IS
5
ICMP
6
GND
7
OUT
8
VCC
Pin Function
Voltage Feedback Input
1
Voltage Loop Compensation
2
AC Voltage Input
1
Current Sense Input
Current Loop Compensation
2
Ground
Output
Power Supply
1
Notes)
1 connect the capacitor.
2 connect capacitor and the resistor.
Features
- Unique switching frequency diffusion function incorporated.
- Selectable switching frequency : Diffuse or Fix (120 kHz, 130 kHz).
- High-precision over current protection : 0.5V ± 5%.
- No audible noise at startup by dynamic OVP circuit.
- Low current consumption by high voltage CMOS process
Operating : 2mA (typ. ).
- Enabled to drive power MOSFET directly. Output peak current, source : 1.5A, sink : 1.5A.
- Open/short protection at feedback (FB) pin.
- Under-voltage lo.