The MCF8329 is a 4.5V to 60V, three-phase brushless-DC gate driver IC with code-free sensorless field oriented control (FOC) for motor drive applications. The MCF8329 integrates a charge pump and uses bootstrap architecture to drive three high-side and three low-side N-channel MOSFETs with up to 1A peak source and 2A peak sink current. The MCF8329 also integrates a trickle charge pump to support 100% PWM duty cycle.

The internal sensorless FOC algorithm register configuration can be stored in non-volatile EEPROM enabling the device to operate stand-alone once the algorithm has been configured. Motor current is sensed using an integrated current sense amplifier supporting a single external shunt resistor. The device can receive a speed command through a PWM input, analog voltage, variable frequency square wave, or I2C command. There are a large number of protection features integrated into the MCF8329, intended to protect the device, motor, and system against fault events.