Allegro MicroSystems

A6211 LED Driver

Allegro’s A6211 is a constant-current, 3 A, PWM dimmable buck regulator LED driver

Image of Allegro MicroSystems' A6211 LED DriverThe A6211 is a switching buck regulator LED driver that provides constant-current output to drive high-power LEDs. With a wide input supply voltage from 6 V to 48 V, Allegro's A6211 device integrates a high-side N-channel MOSFET switch for DC-to-DC stepdown (buck) conversion. A true average current is output using a cycle-by-cycle, controlled on-time method. This new device has significant fault protection advantages including design techniques to address pin-pin shorts, pin-ground shorts and open and shorted external components. The A6211 is designed for the consumer, industrial, and architectural lighting markets in addition to light bars for scanners and multi-function printers.

Features
  • Supply voltage from 6 V to 48 V
  • True average output-current control
  • 3.0 A (max.) 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 (typ.)]
Applications
  • General illumination
  • Scanners and multi-function printers (light bars)
  • Architectural lighting
  • Industrial lighting
  • Display case lighting / MR16

A6211

ImagineManufacturer Part NumberDescriereComutatoare interneNumăr de ieșiriAvailable QuantityPreț
IC LED DRIVER RGLTR PWM 3A 8SOICA6211GLJTR-TIC LED DRIVER RGLTR PWM 3A 8SOICDa164087 - Immediate$3.84Vedeți detalii

Evaluation Board

ImagineManufacturer Part NumberDescriereIeșiri și tipTensiune - IeșireAvailable QuantityPreț
EVAL BOARD FOR A6211APEK6211GLJ-01-T-DKEVAL BOARD FOR A62111 ieșire neizolată–1 - Immediate$434.65Vedeți detalii
Published: 2013-07-02

Related Articles and Blogs

Single-Stage PFC LED Drivers Simplify T8 Lamp Replacements Determining T8 LED tube replacements based on isolated or non-isolated design, output voltage requirements, power level & dimming.

Related Product Training Modules

A6211 LED Driver Allegro’s A6211 constant-current, 3 A, PWM dimmable, buck regulator LED driver is a thermally efficient, minimized solution.