The A8906CLB is a bidirectional three-phase brushless dc motor controller/driver. The three half-bridge outputs are low on-resistance n-channel DMOS devices capable of driving up to 1 A. The A8906CLB provides complete, reliable, self-contained back-EMF sensing motor startup and running algorithms. A programmable digital frequency-locked loop speed control circuit together with the linear current control circuitry provides precise speed control. The device features low standby current, low voltage noise, low EMI and high reliability.
The A8906CLB is a bidirectional three-phase brushless DC motor controller/driver fabricated in Allegro's BCD process. It features low on-resistance n-channel DMOS outputs capable of driving up to 1 A and provides complete, reliable self-contained back-EMF sensing for motor startup and running algorithms.
The device includes a programmable digital frequency-locked loop speed control circuit together with linear current control circuitry for precise motor speed regulation. A serial port allows users to program various features such as speed control parameters, rotational direction, startup current limit, sleep mode, and diagnostic modes.
| Logic Supply Voltage | 4.5 V to 5.5 V |
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The device can drive up to 1 A.
Yes, it provides complete self-contained back-EMF sensing for motor startup and running algorithms.
Rotational direction is controlled via serial port bit D2.