Data Sheet

Single Stage Primary Side Regulation PFC Controller For LED Driver

AP1682

Dec. 2011

Rev. 1. 1

BCD Semiconductor Manufacturing Limited

2

Pin Configuration

M Package

(SOIC-8)

Figure 2. Pin Configuration of AP1682 (Top View)

Pin Description

Pin Number

Pin Name

Function

1

NC

No connection

2

VS

The rectified input voltage sensing pin. The pin is detecting the

instantaneous rectified sine waveform of input voltage

3

VPK

The rectified input voltage peak value sensing pin. The pin is detecting

the rectified sine waveform peak value of input voltage

4

CS

Primary current sensing

5

FB

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

6

GND

Ground. Current return for gate driver and control circuits of the IC

7

OUT

Gate driver output

8

VCC

Supply voltage of gate driver and control circuits of the IC

1

2

3

4

8

7

6

5

NC

VS

VPK

CS

FB

GND

OUT

VCC