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AAT2842

Skyworks Solutions
Part Number AAT2842
Manufacturer Skyworks Solutions
Description High Current Charge Pump
Published Nov 30, 2018
Detailed Description DATA SHEET AAT2842 High Current Charge Pump with S2CwireTM Control and Dual LDO for Backlight and Flash General Descri...
Datasheet PDF File AAT2842 PDF File

AAT2842
AAT2842

Overview
DATA SHEET AAT2842 High Current Charge Pump with S2CwireTM Control and Dual LDO for Backlight and Flash General Description The AAT2842 is a highly integrated charge pump with dual linear regulators optimized for systems operating with lithium-ion/polymer batteries.
The charge pump provides power for both white LED backlight/keypad and flash.
Up to four backlight LEDs can be driven at up to 30mA each and keypad LEDs can be driven using lower currents set by the S2Cwire interface.
In addition, up to four flash LEDs can be driven with up to 600mA total.
Two separate S2Cwire™ (Simple Serial Control™) serial digital interfaces are used to enable, disable, and set the current to one of 16 levels for both backlight and flash LEDs.
Backlight/keypad and flash current settings are also controlled through external resistors for increased versatility with reduced accuracy and matching.
Backlight/ keypad current matching is 1% for uniform display brightness, and flash current matching is 4% ...


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