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A6211 Datasheet Buck Regulator LED Driver

Manufacturer: Allegro MicroSystems

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General Description

The A6211 is a single IC switching regulator that provides constant-current output to drive high-power LEDs.

It integrates a high-side N-channel DMOS switch for DC-to-DC step- down (buck) conversion.

A true average current is output using a cycle-by-cycle, controlled on-time method.

Overview

A6211 Constant-Current 3-Ampere PWM Dimmable Buck Regulator LED.

Key Features

  • Supply voltage 6 to 48 V.
  • True average output current control.
  • 3 A maximum output over operating temperature range.
  • Cycle-by-cycle current limit.
  • Integrated MOSFET switch.
  • Dimming via direct logic input or power supply voltage.
  • Internal control loop compensation.
  • Undervoltage lockout (UVLO) and thermal shutdown protection.
  • Low power shutdown (1 µA typical).
  • Robust protection against:.
  • Adjacent pin.

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