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AAT2806 - Dual High Efficiency Charge Pump

General Description

The AAT2806 is a dual charge pump designed to support both the white LED backlight and flash applications for systems operating with lithium-ion/polymer batteries.

The backlight charge pump is capable of driving up to four LEDs at a total of 80mA.

Key Features

  • ChargePump™.
  • VIN Range: 2.7V to 5.5V Dual Charge Pump to Support Backlight and Flash LEDs Backlight Charge Pump:.
  • Regulated Current.
  • Four Current Sink Inputs.
  • S2Cwire Brightness Control.
  • Tri-Mode Charge Pump.
  • Maximum 20mA of Current Per Input.
  • Low IQ (50µA) in Light Load Mode Flash Charge Pump:.
  • Regulated Output Voltage.
  • Up to 250mA.

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Datasheet Details

Part number AAT2806
Manufacturer ANALOGIC TECH
File Size 504.17 KB
Description Dual High Efficiency Charge Pump
Datasheet download datasheet AAT2806 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AAT2806 Dual High Efficiency Charge Pump for White LED and Flash Applications General Description The AAT2806 is a dual charge pump designed to support both the white LED backlight and flash applications for systems operating with lithium-ion/polymer batteries. The backlight charge pump is capable of driving up to four LEDs at a total of 80mA. The current sinks may be operated individually or in parallel for driving higher current LEDs. To maximize power efficiency, the charge pump operates in 1X, 1.5X, or 2X mode, where the mode of operation is automatically selected by comparing the forward voltage of each LED with the input voltage.