• Part: A6274
  • Description: Linear Current Regulator/Controller
  • Manufacturer: Allegro MicroSystems
  • Size: 920.72 KB
A6274 Datasheet (PDF) Download
Allegro MicroSystems
A6274

Description

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

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 bined 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
  • Input supply and temperature-based derating

Applications

  • DRL/position