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Frequent questions

  • [FAQ] Common MCx Schematic and Layout Q/A

    In this E2E FAQ we will cover frequently asked questions about MCx devices in schematic and layout stages of design. 1. How should I configure the Thermal Vias on the BLDC motor driver device? A common equation we use for the thermal resistance…

  • [FAQ] Common MCx faults and how to handle them

    In this FAQ we will cover some common faults that are triggered and how to resolve them by tuning the settings available on the MCx devices (with example pictures from the GUI). 1. MPET IPD Faults A common fault we see with customers are MPET faults…

  • [FAQ] DRV8316: How does the VREF/ILIM pin work?

    Part Number: DRV8316 How to put the device in current limiting mode or current sense amplification mode? The VREF/ILIM pin and the PWM mode the device is in determine if the device will be in in current limiting mode or current sense amplification…

  • [FAQ] DRV8714-Q1: [FAQ] DRV8705/6-Q1, DRV8714/18-Q1 Offline diagonastic

    Part Number: DRV8714-Q1 Other Parts Discussed in Thread: DRV8706-Q1 , DRV8705-Q1 , DRV8718-Q1 DRV8705-Q1, DRV8706-Q1, DRV8714-Q1, DRV8718-Q1 Above automotive gate driver family has offline diagnostic function. Procedure of offline diagnostic is shown…

  • [FAQ] How to Convert 3 CSA Outputs to One with BLDC Integrated FET Drivers

    Other Parts Discussed in Thread: DRV8311HEVM When it comes to designing your system, sometimes you may find that there is a limited amount of ADC channels available on your MCU. One way that you can reduce the number of needed ADC channels is by converting…

  • [FAQ] MCF8316A: Fast deceleration using active braking in MCF8316A and MCF8315A

    Part Number: MCF8316A Other Parts Discussed in Thread: MCF8315A , Abstract Sensorless Brushless DC (BLDC) motors are widely used in industrial and medical applications such as vacuum cleaners, pumps, CPAP blowers etc. Decelerating a BLDC motor in…

  • [FAQ] What are motor parameters, why are they needed, and how do I measure them?

    Other Parts Discussed in Thread: MCF8316A Importance of Motor Parameters When driving a sensorless 3-phase BLDC motor with field-oriented control (FOC), the control algorithm uses the motor parameters to create a mathematical model representation of…

  • [FAQ] Sensorless BLDC Trap and Field Oriented Control (FOC) Motor Stop Options

    Other Parts Discussed in Thread: MCF8316A Brushless DC motors are widely used across market sectors and the industry is attempting to move from sensored to sensorless solutions for applications that don’t need the tight position control offered by sensored…

  • [FAQ] When Do I Need to Reconfigure My Motor Driver’s Register Settings?

    Register settings in TI motor drivers allow you to configure specific settings to optimize motor driver performance for your particular application. Whether it is adjustable IDRIVE, dead time, or setting the overcurrent trip threshold, register settings…

  • [FAQ] Do I Still Need the Buck Components if I am Not Using the Buck of the DRV8316?

    Other Parts Discussed in Thread: DRV8316 The DRV8316 comes with an integrated buck that can support up to 200mA of current and can be used as a 3.3V or a 5V rail in a motor driver system. In some systems, however, the buck may not be needed. If this is…

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