DRV8703DQRHBRQ1

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PMIC - Motor Drivers, Controllers is an important part of electronic system design. Recently, some new products such as DRV8703DQRHBRQ1 have been developed to improve the performance of motor-driver system. This article explains the application field and working principle of DRV8703DQRHBRQ1.

Application field of DRV8703DQRHBRQ1

DRV8703DQRHBRQ1 is a fully integrated, high performance, three-phase motor-driver for sinusoidal motor control applications. It is suitable for applications on personnel mobility and industrial tools, such as BLDC motor control, brushed DC and stepper motor control. Its flexible configuration and wide supply range make it an ideal choice for many applications. DRV8703DQRHBRQ1’s integrated voltage protection, over-current protection, under-voltage lockout and over temperature protection can protect motors and control circuits from any damage.

Working principle of DRV8703DQRHBRQ1

DRV8703DQRHBRQ1 operates using a three-phase synchronous rectification technique. Three independent high-reverse-current MOSFET driver channels are combined with three low side current sensing channels to realize a sophisticated synchronous rectification technique. DRV8703DQRHBRQ1 also utilizes a low pass filter feature for improved motor control and noise minimization. It also includes integrated voltage protection, over-current protection, under-voltage lockout and over temperature protection. The system’s integrated PLL (phase-locked loop) technology provides the desired power factor.

The DRV8703DQRHBRQ1 controllers are developed in IDT’s 65 mnm MOSFETs. The high efficiency and low stand-by current provided by these components allows it to generate operating frequencies of up to 2 MHz. In addition, the integrated PLL with its wide operating frequency range allows the device to remain locked even when the motor is stopped. This feature provides protection against any possible stall-lock.

The DRV8703DQRHBRQ1 system provides high electromagnetic compatibility with its EMI filter circuit and integrated bootstrap circuitry. The integrated bootstrap circuitry provides the necessary high-side drive to the gate of the power MOSFETs. This eliminates the need for an external bootstrap capacitor, thus reducing the number of external components required.

In summary, DRV8703DQRHBRQ1 is a highly advanced and high-performance motor-driver for sinusoidal motor control applications on personnel mobility and industrial tools. Its high efficiency and low stand-by current make it an ideal choice for many applications. With its integrated voltage protection, over-current protection, under-voltage lockout and over temperature protection, it is well-suited for a variety of motor-driver applications. In addition, the integrated PLL and wide operating frequency ranges offered by the system allow it to remain locked even when the motor is stopped. Finally, its EMI filter circuit and integrated bootstrap circuitry provide the necessary high-side drive to the gate of the power MOSFETs and reduce the number of external components required.

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