DRV8702DQRHBRQ1

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PMIC - Motor Drivers, Controllers

The DRV8702DQRHBRQ1 is a general-purpose low-side, high-efficiency driver for a variety of small motor applications. It integrates a high-side synchronous driver, a low-side PNP driver, and a low on-resistance driver along with programmable current sensing and active current matching, enabling use in various applications such as automotive and industrial motor control. Compared to previous generations, the DRV8702DQRHBRQ1 features higher efficiency, supporting motor power dissipation up to 20A and peak current pulse of up to 24A.

The DRV8702DQRHBRQ1 is an integrated three-phase brushless DC motor driver and controller that uses external MOSFETs to drive small brushed and brushless DC motors. It is a low-power device with an input voltage range of 4.5V to 32V and an input current up to 8A. The output voltage is adjustable up to Vref of 7.5V. The integrated analog current sense amplifier allows for the motor torque to be adjusted across a wide range and ensures a smooth start-up and efficient operation of the motor.

The DRV8702DQRHBRQ1 utilizes a value-added protection feature set including over-temperature shutdown, under-voltage lockout, and fault reporting, making it suitable for reliable operation in a wide range of applications. The device comes with a phase-shifted, open-loop control scheme that optimizes the DRV8702DQRHBRQ1’s maximum power efficiency. The phase shift algorithm is adjustable for a wide range of motor parameters.

Moreover, the motor control can be further improved with FOC (field-oriented control). FOC helps to adjust motor torque and speed accurately resonant with application requirements. FOC provides absolute position sensing of the rotor and maintains the magnetic flux in the motors output undistorted. The DRV8702DQRHBRQ1 can support up to four independent position sensor inputs and provide seven internal current feedback control modes.

The DRV8702DQRHBRQ1 integrates a dedicated fault reporting output that provides information about any fault conditions with the device, such as over-current, under voltage, over temperature, etc. The fault reporting feature can also be used for system diagnostics or for measuring motor temperature. Flexible fault management strategies are also available, including retry and on/off switching.

Overall, the DRV8702DQRHBRQ1 has a wide range of application fields, ranging from industrial and automotive applications such as HVAC, fans, pumps and blowers, to audio and vision equipment, power tools and robotics, and other mobile and home appliance applications.

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