LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER

AP1680

Preliminary Datasheet

2

BCD Semiconductor Manufacturing Limited

Apr. 2011 Rev. 1. 0

Pin Configuration

Figure 2. Pin Configuration of AP1680 (Top View)

1

2

34

5

Pin 1 Dot by Marking

6

CS

OUT

VCC

GND

FB

GND

K6 Package

(SOT-23-6)

Pin Description

Pin Number

Pin Name

Function

1

OUT

This pin drives the base of external power NPN switch

2, 5

GND

Ground

3

VCC

Supply voltage

4

CS

The primary current sense

6

FB

The voltage feedback from the auxiliary winding