A6211GLJTR-T
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A6211GLJTR-T

  • Category:Driver chip
  • Product Name:3 Ampere constant current PWM dimmable buck regulator LED driver
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:8-lead SOIC
  • Stock Status:There is stock
  • Stock Quantity:89030
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on the A6211GLJTR-T
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  • Product introduction

It is a single IC chipSwitching regulators, which provides a constant current output to drive high-power LEDs. It integrates a high-side N-channel DMOS switch for DC-to-DC step-down conversion. The true average current is output by a cycle-by-cycle, controlled on-time method.

An external current sense resistor allows the user to select the output current. The output voltage is automatically adjusted to drive different numbers of LEDs within a single string. This guarantees optimal system efficiency.

LED dimming is accomplished by enabling a direct logic input pulse-width modulation (PWM) signal at the enable pin.

The device is available in a small 8-pin narrow SOIC package (suffix LJ) and is fitted with an exposed heat sink for enhanced heat dissipation. It is packaged as a lead (PB) free product and features 100% matte tin leadframe plating.

  • Supply voltage 6 to 48 V
  • True average output current control
  • The maximum output over the 3.0 operating temperature range is 3.0 A
  • Cycle-by-cycle current limit
  • Integrated MOSFET switch
  • Dimming via direct logic input or supply voltage
  • Internal control loop compensation
  • Undervoltage lockout (UVLO) and thermal shutdown
  • protection
  • Low power shutdown (1 μA typical)
  • Provides robust protection against the following failures:
    • Adjacent pin-to-pin shorts
    • Pin to ground short circuit
    • Component open/short faults

 

andA6211GLJTR-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
A6211GLJTR-T Allegro 15+ 8-lead SOIC 3 Ampere constant current PWM dimmable buck regulator LED driver

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