Data Sheet
Single Stage Primary Side Regulation PFC Controller For LED Driver
AP1682
Pin Configuration
M Package
(SOIC-8)
NC
VS
VPK
CS
1
2
3
4
8
7
6
5
VCC
OUT
GND
FB
Figure 2. Pin Configuration of AP1682 (Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
NC
VS
VPK
CS
FB
GND
OUT
VCC
No connection
Function
The rectified input voltage sensing pin. The pin is detecting the
instantaneous rectified sine waveform of input voltage
The rectified input voltage peak value sensing pin. The pin is detecting
the rectified sine waveform peak value of input voltage
Primary current sensing
This pin captures the feedback voltage from the auxiliary winding. FB
voltage is used to control no load output voltage and determine
acceleration stop point at start-up phase
Ground. Current return for gate driver and control circuits of the IC
Gate driver output
Supply voltage of gate driver and control circuits of the IC
Dec. 2011
Rev. 1. 1
2
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
