iW1812

Off-Line Digital Green-Mode PWM Controller

Integrated with Power BJT and OTP

Rev. 1.2

Datasheet

© 2016 Dialog Semiconductor

www.dialog-semiconductor.com

3 of 17

26-September-2016

4 Pinout Description

Pin Number

Pin Name

Type

Pin Description

1

C

BJT Collector Collector of internal bipolar junction transistor (BJT).

2

C

BJT Collector Collector of internal BJT.

4

Power Input Power supply for control logic.

5

GND

Ground

Ground.

6

Analog Input Auxiliary voltage sense (used for primary-side regulation).

7

Analog Input Primary current sense. Used for cycle-by-cycle peak current control

and current limit.

8

E

BJT Emitter Emitter of internal BJT (pin 7 and pin 8 must be shorted externally on

the PCB).

Figure 4.1 : 7-Lead SOIC Package

iW1812

C

C

E

GND

8

6

4

1

2

5

7