Datasheet

ADP8866 Data Sheet
Rev. A | Page 2 of 52
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Operating Circuit ................................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Maximum Temperature Ranges ................................................. 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 11
Power Stage.................................................................................. 12
Operating Modes ........................................................................ 13
LED Groups................................................................................. 14
Output Current Settings ............................................................ 14
Output Current Range Selection .............................................. 14
PWM Dimming .......................................................................... 14
Automated Fade-in and Fade-Out ........................................... 14
CABC Fade Disable.................................................................... 15
Independent Sink Control (ISC) .............................................. 15
Advanced Blinking Controls .................................................... 16
Short-Circuit Protection (SCP) Mode ..................................... 17
Overvoltage Protection (OVP) ................................................. 17
Thermal Shutdown (TSD)/Overtemperature Protection ..... 17
Interrupts ..................................................................................... 19
Backlight Off Interrupt .............................................................. 19
Independent Sink Off Interrupt ............................................... 19
Applications Information .............................................................. 20
Layout Guidelines....................................................................... 20
I
2
C Programming and Digital Control ........................................ 21
Register Descriptions ..................................................................... 22
Backlight Register Descriptions ............................................... 29
Independent Sink Register Descriptions ................................. 34
Outline Dimensions ....................................................................... 50
Ordering Guide .......................................................................... 50
REVISION HISTORY
1/14—Rev. 0 to Rev. A
Changes to Figure 40 and Figure 41 ............................................. 21
3/11—Revision 0: Initial Version