iW1677

Low-Power Off-Line Digital Green-Mode PWM Controller

Rev. 2.0

Datasheet

© 2016 Dialog Semiconductor

www.dialog-semiconductor.com

3 of 16

3-June-2016

4 Pinout Description

Pin No.

Pin Name

Type

Pin Description

1

Power Input

Power supply for control logic.

2

Analog Input

Auxiliary voltage sense (used for primary regulation).

3

ASU

Output

Control signal for active start-up device (BJT or Depletion NFET).

4

Analog Input

Primary current sense. Used for cycle-by-cycle peak current control and limit.

5

GND

Ground

Ground.

6

OUTPUT

Output

Base drive for BJT.

Figure 4.1 : 6-Pin SOT23 Package

iW1677

ASU

OUTPUT

GND

1

2

3

6

4

5