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ADD5211 - White LED Driver

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General Description

The ADD5211 is a 4 channel, white LED driver for backlight applications based on high efficiency, current mode, step-up converter technology.

Overview

Preliminary Technical Data.

Key Features

  • White LED driver based on an inductive boost controller Wide input voltage range: 4.5 V to 40 V Adaptive output voltage to minimize power dissipation Adjustable operating frequency: 200 kHz to 1.2 MHz Programmable UVLO Programmable soft start time for boost converter Programmable external MOSFET switching rising/falling time Drives up to 4 LED current sinks with internal MOSFETs Brightness control with PWM input Adjustable LED current: 40 mA up to 200 mA Headroom control to maximize efficiency L.

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