Automotive

BLCD motor controller helps cut BoM

11th November 2021
Mick Elliott

Designed for battery cooling fans and HVAC systems in EV and hybrid vehicles, Allegro's A89307 BLCD motor controller is in stock at Digi-Key.

It offers ultra-low noise and vibration by using a field oriented control (FOC) algorithm to drive continuous sinusoidal current to the load, helping automakers reduce noise and improve battery life.

The A89307 includes a hardware-based algorithm, which requires no external sensors or software development; the user simply selects parameters using a simple GUI interface and loads them into the IC’s on-chip E2EPROM.

With only five external components, the A89307 helps designers lower material costs by reducing BOM components and facilitating very small system footprints for in-motor PCBs.

The A89307 is available in a small 5 mm x 5 mm 28L wettable flank QFN package. Its fully integrated algorithm can even eliminate the need for a separate microprocessor.

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