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AAT2805 - Dual High Efficiency Charge Pump

General Description

The AAT2805 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 120mA.

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.
  • AS2Cwire Brightness Control.
  • Tri-Mode Charge Pump.
  • Maximum 30mA 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 AAT2805
Manufacturer AAT
File Size 581.65 KB
Description Dual High Efficiency Charge Pump
Datasheet download datasheet AAT2805 Datasheet

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Other Datasheets by AAT

Part Number Description
AAT2801 Multi-Mode Charge Pump
AAT2803 Six-Channel White LED Backlight Charge Pump
AAT2820 Triple-Output Charge Pump Regulator
AAT2856 High Current Charge Pump
AAT2315 Step-Down Converter

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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AAT2805 Dual High Efficiency Charge Pump for White LED and Flash Applications General Description The AAT2805 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 120mA. 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.