Linear Current Regulators Drive Automotive Lighting

Linear Current Regulators Drive Automotive Lighting
Allegro MicroSystems Inc.

The AEC-Q100 qualified A6274 and A6284 adjustable linear current regulators for driving automotive LED arrays integrate an optional pre-regulator gate drive to dynamically and linearly control an external P-channel MOSFET. This extends the output power capability of a linear LED driver by moving most of the power losses to an external power FET, eliminating the need for dc/dc switching, an inductor and a diode. The ICs sink up to 60 mA (A6274) or 120 mA (A6284) from each of six LED pins, and are configurable in parallel to drive higher current strings up to 720 mA. Both devices are available in 20-lead, eTSSOPs with exposed pads. Price for the A6274 is $0.95 each/1,000 and the A6284 costs $1.23, each/1,000. For more details and datasheets, go to

Allegro MicroSystems
Worcester, MA

Contact Info

Company: Allegro MicroSystems Inc.
Country: United States (USA)
Phone number: 508-853-5000
Fax: 508-853-7895

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