Datasheet

ADP8860
Rev. 0 | Page 2 of 52
TABLE OF CONTENTS
Features .............................................................................................. 1
Applicat ions ....................................................................................... 1
General Description ......................................................................... 1
Typical Operating Circuit ................................................................ 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
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C Timing Diagram ..................................................................... 5
Absolute Maximum Ratings ............................................................ 6
Maximum Temperature Ranges ................................................. 6
Thermal Resistance ...................................................................... 6
ESD Caution .................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Power Stage.................................................................................. 13
Operating Modes ........................................................................ 14
Backlight Operating Levels ....................................................... 16
Backlight Maximum and Dim Settings ................................... 17
Automated Fade In and Fade Out ............................................ 17
Backlight Turn On/Turn Off/Dim ........................................... 17
Automatic Dim and Turn Off Timers ..................................... 18
Fade Override ............................................................................. 19
Ambient Light Sensing .............................................................. 19
Automatic Backlight Adjustment ............................................. 20
Independent Sink Control ........................................................ 20
Short-Circuit Protection Mode ................................................ 21
Overvoltage Protection .............................................................. 21
Thermal Shutdown/Overtemperature Protection ................. 21
Inter rupts ..................................................................................... 23
Applications Information .............................................................. 24
Layout Guidelines....................................................................... 24
Example Circuits ........................................................................ 25
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2
C Programming and Digital Control ........................................ 26
Backlight Register Descriptions ............................................... 30
Independent Sink Register Descriptions ................................. 37
Comparator Register Descriptions .......................................... 45
Outline Dimensions ....................................................................... 49
Ordering Guide .......................................................................... 50
REVISION HISTORY
5/09—Revision 0: Initial Version