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A6284 - Linear Current Regulator/Controller

Download the A6284 datasheet PDF. This datasheet also covers the A6274 variant, as both devices belong to the same linear current regulator/controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The A6274 and A6284 are programmable linear current regulator ICs for driving automotive LED arrays.

The LED current is programmed by external resistors.

These devices sink up to 60 mA (A6274) or 120 mA (A6284), from each of six LED pins, to drive strings of high-brightness LEDs.

Key Features

  • Six LED current sinks rated up to 60 mA (A6274) or 120 mA (A6284).
  • Total LED drive current.
  • up to 360 mA or 720 mA.
  • Wide input voltage range of 5 to 42 V for start/stop, cold- crank, and load-dump requirements.
  • Low-dropout voltage.
  • drives two series WLEDs from 7 V input.
  • Gate driver for external ballast P-MOSFET.
  • LEDs combined in two groups with separate ENx and ISETx.
  • LED current level set by external reference resist.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A6274-AllegroMicroSystems.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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A6211 Buck Regulator LED Driver Allegro
A6213 PWM Dimmable Buck Regulator LED Driver Allegro

Other Datasheets by Allegro MicroSystems

Part Number Description
A6284-1 Linear Current Regulator/Controller
A6280 3-Channel Constant-Current LED Driver
A6281 3-Channel Constant Current LED Driver
A6282 16-Channel Constant-Current LED Driver
A6285 16-Channel Constant-Current Latched LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A6274, A6274-1 A6284, A6284-1 Linear Current Regulator and Controller for Automotive LED Arrays FEATURES AND BENEFITS • Six LED current sinks rated up to 60 mA (A6274) or 120 mA (A6284) • Total LED drive current—up to 360 mA or 720 mA • Wide input voltage range of 5 to 42 V for start/stop, cold- crank, and load-dump requirements • Low-dropout voltage—drives two series WLEDs from 7 V input • Gate driver for external ballast P-MOSFET • LEDs combined in two groups with separate ENx and ISETx • LED current level set by external reference resistors • Internal or external PWM dimming • Controlled output drivers slew during PWM for lower EMI • Fault detection features: LED string open, LED pin short-to-ground, single LED short, VOUT short-toground, VIN overvoltage, and thermal protection • Input