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HOLTEK launches BD66FM6445A/52A with built-in P/N Gate-driver BLDC motor MCU

Nov 13 2023 2023-11 Power Holt Integrated Circuits Inc.
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Holtek launched a new generation of DC motor dedicated SoC Flash MCU BD66FM6445A/BD66FM6452A, integrating MCU, LDO, three-phase 36V P/N GIT-driver, VDC bus voltage detection and zero standby power consumption circuit, which can reduce the number of parts and cost. In zero standby power consumption mode, the power consumption is only 2μA, which is ideal for lithium batteries or products requiring PCBA miniaturization.

     Holtek launched a new generation of DC motor dedicated SoC Flash MCU BD66FM6445A/BD66FM6452A, integrating MCU, LDO, three-phase 36V P/N GIT-driver, VDC bus voltage detection and zero standby power consumption circuit, which can reduce the number of parts and cost. In zero standby power consumption mode, the power consumption is only 2μA, which is ideal for lithium batteries or products requiring PCBA miniaturization. BD66FM6452A further built in the functions of the charging IC, with OPA reverse amplification, ±1% reference voltage source and hardware subsidy UL certification function, to achieve a lithium battery charging + motor drive two-in-one solution, very suitable for use in molding guns, small power tools.


     BD66FM6445A/BD66FM6452A has 4K×16/8K×16 Flash ROM, 512×8/2K×8 RAM and internal system frequency of 20MHz, with 11/9 channels 12-bit ADC, And configure 2 groups of 16-bit Timer, 2 groups of 10-bit Timer and high-speed UART, also for BLDC control to provide 16-bit speed monitoring Timer, 3-pass props Dead-time complementary 10-bit PWM output, hardware quickly turn off PWM protection mechanism.


     Three built-in comparators can be used for Hall Element or Sensorless rotor position detection, and the anti-electromotive force noise suppression filter circuit is configured to make the square wave Sensorless more stable to start or low speed. The hardware Cycle-by-Cycle current protection control function can directly set the output current limit, so that the motor can continue to operate at the maximum protective current. The BD66FM6445A/BD66FM6452A is available in a 32QFN(4mm×4mm) package, matching the best pin package for product applications.

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