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AAT2801 - Multi-Mode Charge Pump

Description

The AAT2801 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family.

It has a dual charge pump architecture designed to support both the white LED backlight and flash applications for systems operating with Lithium-Ion batteries.

Features

  • ChargePump™ VIN Range: 2.7V to 5.5V Dual Charge Pump.
  • Flash: Charge Pump Doubler.
  • Backlight: Tri-Mode Charge Pump Drives Low-VF and High-VF LEDs Up to Four 30mA Outputs 32-Position Logarithmic Scale with Digital Control Low Noise Constant Frequency Operation 1MHz Switching Frequency AutoBias Technology Regulated 4.5/5.0 Volts VOUT_FLASH U.

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Datasheet Details

Part number AAT2801
Manufacturer AAT
File Size 772.15 KB
Description Multi-Mode Charge Pump
Datasheet download datasheet AAT2801 Datasheet

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Full PDF Text Transcription

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Multi-Mode Charge Pump for White LED Backlight and Flash Applications General Description The AAT2801 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It has a dual charge pump architecture designed to support both the white LED backlight and flash applications for systems operating with Lithium-Ion batteries. The backlight charge pump provides power required to drive up to four LEDs. To maximize power efficiency, it automatically selects 1X, 1.5X, or 2X mode. The device produces current levels up to 30mA on each of its four current source outputs. AnalogicTech's Simple Serial Control™ (S2Cwire™) interface is used to enable, disable, and set the LED drive current with a 32-level logarithmic scale LED brightness control.
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