ADP1653

Rev. B | Page 2 of 24

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Typical Operating Circuit................................................................ 1

PCB Layout........................................................................................ 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

I2C Timing Specifications............................................................ 5

Absolute Maximum Ratings............................................................ 6

Thermal Resistance ...................................................................... 6

Boundary Condition .................................................................... 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ..............................................9

Theory of Operation ...................................................................... 13

White LED Driver ...................................................................... 13

2-Bit Logic Interface Mode (INTF = 1)................................... 14

I2C Interface Mode (INTF = 0)................................................. 14

Turning on the Flash and Watchdog Timer ........................... 15

Safety Features ............................................................................ 16

Applications Information .............................................................. 17

Flash Current Foldback During Transmit Pulse .................... 17

External Component Selection ................................................ 18

PCB Layout ................................................................................. 20

Outline Dimensions ....................................................................... 22

Ordering Guide .......................................................................... 22

REVISION HISTORY

9/07—Rev. A to Rev. B

Changes to Table 1............................................................................ 3

Changes to Table 5............................................................................ 7

Changes to Safety Features Section .............................................. 16

Inserted Table 9 and Table 10........................................................ 18

Inserted Table 11 and Table 12...................................................... 19

1/07—Revision A: Initial Version