ADP8863 Analog Devices, ADP8863 Datasheet - Page 2

• Manufacturer Part Number: ADP8863
• Description: Charge Pump, 7-Channel Fun Lighting LED Driver
• Manufacturer: Analog Devices

Specifications of ADP8863

• Vin Range: 2.5 to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead LFCSP,20-Lead WLCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 60mA
• Brightness Control: I2C
• Peak Efficiency (%): 89%
• Switching Frequency: 1.32MHz
• Over Volt Protection (v): 5V

ADP8863
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Operating Circuit ................................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 11
REVISION HISTORY
6/10—Rev. 0 to Rev. A
Changes to Features Section and General Description Section . 1
Changes to Thermal Resistance Section and Table 3 ................... 5
Added Figure 4; Renumbered Sequentially .................................. 6
Changes to Table 4 ............................................................................ 6
Updated Outline Dimensions ....................................................... 48
Changes to Ordering Guide .......................................................... 49
4/10—Revision 0: Initial Version
I
Maximum Temperature Ranges ................................................. 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
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
2
C Timing Diagram .................................................................... 4
Rev. A | Page 2 of 52
Applications Information .............................................................. 23
I
Outline Dimensions ....................................................................... 48
2
C Programming and Digital Control ........................................ 24
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
Layout Guidelines....................................................................... 23
Backlight Register Descriptions ............................................... 29
Independent Sink Register Descriptions ................................. 36
Comparator Register Descriptions .......................................... 44
Ordering Guide .......................................................................... 49