AAT2803 - AAT

AAT2803 Six-Channel White LED Backlight Charge Pump

The AAT2803 is a dual charge pump designed to support both white LED backlight and flash applications for systems operating with lithium-ion/polymer batteries. The backlight charge pump is capable of driving up to six LEDs at a total of 180mA. The current sinks may be operated in group or in parallel for driving higher current LEDs. To maximize power efficie.

Features

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• ChargePump™
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• VIN Range: 2.7V to 5.5V Dual Charge Pump: — Flash: Charge Pump Doubler — Backlight: Tri-Mode Charge Pump Backlight Charge Pump: — Programmable Current With Single GPIO — 16 Current Steps — 15/20/30mA Max Current — Four Low Current Settings — Individual Main/Sub-Group Control — Low IQ (50μA) for Low-Current Mode — Drives Six Channels of LEDs Flash Charge Pump: — Regulated VOUT_FL 4.5/5.0 Volts — Up to 300mA of Current for Flash 1MHz Constant Switching Frequency Independent Backlight/Flash Control Built-In Thermal Protection Built-In Auto-Disable for Open Cir.