AP3768 Datasheet, PDF (2/10 Pages) BCD Semiconductor Manufacturing Limited – LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER

Preliminary Datasheet
LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
Pin Configuration
AP3768
M Package
(SOIC-8)
CS 1
VCC 2
OUT ₃
GND 4
8 BIAS
7 CPR
6 FB
5 CPC
Figure 2. Pin Configuration of AP3768 (Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
CS
VCC
OUT
GND
CPC
FB
CPR
BIAS
Function
The primary current sense
Supply voltage
This pin drives the base of external power NPN switch
Ground
This pin connects a capacitor for output cable compensation
The voltage feedback from the auxiliary winding
Connects a resistor to FB pin for adjustable output cable compensation
This pin sets the bias current inside AP3768 with an external resistor to GND
Aug. 2010 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
2