3-Phase Brushless DC Motor Controller/Driver With Back EMF Sensing

The A8904 is a 3-phase brushless DC Motor Controller driver designed for applications where accurate control of high-speed motors is required. The three half-bridge outputs are low on-resistance, N-channel DMOS devices capable of driving up to 1.2 A. The A8904 provides complete, reliable, self-contained back EMF sensing, motor start-up, and running algorithms. A programmable digital frequency-locked loop speed control circuit together with the linear current control circuitry provides precise motor speed regulation.
A serial port allows the user to program various features and modes of operation, such as the speed control parameters, start-up current limit, sleep mode, direction, and diagnostic modes.
By Allegro MicroSystems, Inc.
A8904 's PackagesA8904 's pdf datasheet

A8904 Pinout, Pinouts
A8904 pinout,Pin out
This is one package pinout of A8904,If you need more pinouts please download A8904's pdf datasheet.

A8904 Application circuits
A8904 circuits
This is one application circuit of A8904,If you need more circuits,please download A8904's pdf datasheet.

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