A4964KEVTR-J

电机驱动器/控制器, 三相DC无刷, 5.5V至50V, 9.5V/10mA/1输出, QFN-36

The A4964 is a three-phase, sensorless, brushless DC BLDC motor controller for use with external N-channel power MOSFETs and is specifically designed for automotive applications. It is designed to provide the motor control functions in a system where a small microcontroller provides the communication interface to a central ECU and intelligent fault and status handling. The A4964 provides the supply and watchdog for the microcontroller and the high-voltage interfaces between the microcontroller and the central ECU and ignition switch. The A4964 can also operate as an independent singlechip remote motor controller.

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Three-phase sensorless BLDC motor control FET driver

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Three-phase sinusoidal drive with soft start

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Sensorless start-up and commutation

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Windmill detection and synchronization

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Bootstrap gate drive for N-channel MOSFET bridge

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Programmable control modes: speed, voltage, current

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Peak current limiting

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Control via SPI or PWM

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Programmable gate drive for slew rate control