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Product description

Product model

Design & development

  • CMS6431

    Widely used in electric tools such as lithium-ion spanners and lithium-ion drills.

    Datasheet >

    The CMS6431 is a dedicated driver chip for brush motors. The transistors of this driver circuit are based on BCD process. The circuit has built-in multiple functions such as KEY detection, LDO, undervoltage protection, thermal shutdown and LDO overcurrent protection, which can effectively prevent the circuit from burning due to improper operation.

    The CMS6431 supports zero standby power consumption. The internal circuitry is started by the KEY when the voltage is detected. It is then maintained by the signal EN, and once the signal EN is shut off for approximately 16ms, the circuitry re-enters standby mode.


    Features

    >  Zero standby power consumption

    >   Supply voltage operating range: 5.5V~33V

    >   Built-in over temperature protection

    >   Built-in undervoltage protection

    >   Built-in LDO output short-to-ground protection

    >   Built-in dead time of power transistors 60ns

    >   Built-in 5V LDO for 30mA continuous output capability

    >   Output drive capability +670mA/-780mA@21V

    >   The input and output are in phase. The input has a built-in pull-down resistor of 100K and the output has a built-in pull-down resistor of 10K.

    >   The bus voltage detects the sub-voltage of 1/10

  • Product model

    Part Number Package Temp Voltage IO+/IO- Input Logic Type of drive power transistors Output channel Built-in LDO VBAT(UV+/UV-) LDO current LDO current limit 温度保护
    CMS6431 SSOP10 -40~+125 5.5~33 +0.67A/-0.78A LIN NMOS 1 5V±2% 4.9V/4.7V 30mA 120mA

  • Design & development

    Documentation
    Name Version Describe Download
    CMS6431 user manual V1.0.0

    It introduces the CMS6431 product overview, pin distribution, system block diagram, performance indicators, typical application circuit diagram, package information, etc.


    Download >

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