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A8511 Datasheet 4-Channel x 150 mA WLED/RGB Driver

Manufacturer: Allegro MicroSystems

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General Description

The A8511 is a multioutput WLED/RGB driver for backlight-ing medium-size displays.

It is a fully integrated high-brightness (HB) LED driver solution that does not require external power devices to complete the backlighting design criteria.

The A8511 integrates FETs for a boost converter as well as four 150 mA current sinks, offering a complete integrated solution at HB LED current levels.

Overview

A8511 2 MHz, 4 Channel × 150 mA WLED/RGB Driver with Output Disconnect.

Key Features

  • Four LED sinks rated for 150 mA each (600 mA total).
  • Boost converter with integrated 40 V DMOS switch and OVP.
  • load-dump protection.
  • 600 kHz to 2.2 MHz switching frequency.
  • ability to operate above the AM band.
  • Internal bias supply for single-supply operation (VIN= 6.8 to 21 V).
  • 3.5 µA shutdown current.
  • limits battery drain.
  • Active current sharing between LED strings for 0.8% current matching and 0.7% accuracy.
  • PWM dimming with LED PWM dut.

More Datasheets from Allegro MicroSystems

Part Number Description
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A8503 WLED/RGB Driver