AAT3340 Datasheet PDF (High Efficiency 1x/1.5x Charge Pump)

AAT3340 - High Efficiency 1x/1.5x Charge Pump

Description

The AAT3340 is a low-noise, constant-frequency charge pump DC/DC converter that uses a dual-mode load switch (1x) and fractional (1.5x) conversion to maximize efficiency for white LED applications.

The AAT3340 is capable of driving 4 white LEDs at a total of 80mA from a single 2.7V to 5.5V input.

Features

Dual-Mode (1x/1.5x) Charge Pump.
Drives up to 4-Channel Backlight LEDs.
32-Level Programmable Backlight Current (linear, inverting).
Single-wire S2Cwire Control.
Built-in Thermal Protection.
Automatic Soft Start.
-40°C to +85°C Temperature Range.
TSOPJW-12 and TDFN33-12 Packages.

Datasheet Details

Part number	AAT3340
Manufacturer	Skyworks
File Size	1.40 MB
Description	High Efficiency 1x/1.5x Charge Pump
Datasheet	AAT3340 Datasheet
Additional preview pages of the AAT3340 datasheet.

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Full PDF Text Transcription

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General Description The AAT3340 is a low-noise, constant-frequency charge pump DC/DC converter that uses a dual-mode load switch (1x) and fractional (1.5x) conversion to maximize efficiency for white LED applications. The AAT3340 is capable of driving 4 white LEDs at a total of 80mA from a single 2.7V to 5.5V input. The current sinks may be operated individually or in parallel while driving higher-current LEDs. A low external parts count (two 1µF flying capacitors and two small 1µF capacitors at VIN and VOUT) makes the AAT3340 ideal for small battery-powered applications. Skyworks' Simple Serial Control (S2Cwire) digital interface is used to enable, disable and set current to one of 32 levels for the LEDs. The AAT3340 is equipped with built-in short-circuit and over-temperature protection.

Published: Jun 28, 2019 |