ADP8863ACPZ-R7 datasheet(2/48 Pages) AD

2 / 48 page

ADP8863

Rev. 0 | Page 2 of 48

TABLE OF CONTENTS

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

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

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

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

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

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

I2C Timing Diagram .................................................................... 4

Absolute Maximum Ratings............................................................ 5

Maximum Temperature Ranges ................................................. 5

Thermal Resistance ...................................................................... 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Typical Performance Characteristics ............................................. 7

Theory of Operation ...................................................................... 11

Power Stage.................................................................................. 12

Operating Modes........................................................................ 13

LED Groupings ........................................................................... 14

LED Current Settings................................................................. 14

Automated Fade In and Fade Out ............................................ 14

Independent Sink Control......................................................... 15

RGB Color Generation .............................................................. 15

Automated RGB Color Fades ................................................... 15

Backlight Operating Levels ....................................................... 16

Backlight Turn On/Turn Off/Dim ........................................... 16

Automatic Dim and Turn Off Timers ..................................... 16

Fade Override ............................................................................. 17

Ambient Light Sensing .............................................................. 17

Automatic Backlight Adjustment............................................. 18

Using the ADP8863 to Drive Additional LEDs...................... 19

Operating LEDs from Alternative Supplies ............................ 20

Short-Circuit Protection Mode ................................................ 21

Overvoltage Protection.............................................................. 21

Thermal Shutdown/Overtemperature Protection ................. 21

Interrupts..................................................................................... 21

Applications Information .............................................................. 23

Layout Guidelines....................................................................... 23

I2C Programming and Digital Control ........................................ 24

Backlight Register Descriptions ............................................... 29

Independent Sink Register Descriptions................................. 36

Comparator Register Descriptions .......................................... 44

Outline Dimensions ....................................................................... 48

Ordering Guide .......................................................................... 48

REVISION HISTORY

4/10—Revision 0: Initial Version

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