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A6271 - Automotive High-Current LED Controller

Allegro MicroSystems

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Datasheet Details

Part number: A6271
Manufacturer: Allegro MicroSystems
File Size: 0.97 MB
Datasheet: A6271-AllegroMicroSystems.pdf
Description: Automotive High-Current LED Controller

A6271 Product details

Description

The A6271 is a DC-DC converter controller, providing a programmable constant-current output for driving high-power LEDs in series.

Features

Automotive AEC-Q100 qualified.
Constant-current LED drive.
4.2 to 50 V supply.
53.3 V maximum LED string voltage.
Boost, buck-boost, and buck switching converters.
Programmable switching frequency 70 to 700 kHz.
PWM-controlled PMOS driver allows accurate LED current control at low duty cycles.
Dimming via external PWM, internal PWM and/or analog dimming.
Frequency dither scheme for effective spread spectrum to redu.

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Published: Oct 23, 2019 |