iW3631

Two-Stage, Flickerless™ 0-10V Dimmable Digital

Off-Line LED Driver with High PF and Low THD

Rev. 1.1

Product Summary

© 2017 Dialog Semiconductor

www.dialog-semiconductor.com

2 of 7

23-January-2017

Figure 3.1 : iW3631 Analog Dimming Simplified Schematic with

Internal (-00) or External (-01) Sensing

AC Input

1

14

iW3631

10

11

12

13

5

8

9

7

6

4

3

2

AGND

PGND

ASU

RTN

Boost

Converter

Flyback

Converter

-01

13

5

DIM

AC Input

1

14

iW3631

10

11

12

13

5

8

9

7

6

4

3

2

AGND

PGND

ASU

RTN

Boost

Converter

Flyback

Converter

-01

13

5

DIM

0-10V input

Figure 3.2 : iW3631 0-10V Dimming Simplified Schematic with

Internal (-00) or External (-01) Sensing