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  • DRV8704: Thermal pad connection issue

    TI Thinks Resolved
    Part Number: DRV8704 Hi, Thermal pad solder issue. When the steel plate thickness is 0.12mm, the opening size is 2.9*4.7mm. The height will be due to the large opening area, and the solder paste in the middle will be about 107um lower than the thickness…

  • DRV8704: Under voltage (undershoot) on the switching node

    TI Thinks Resolved
    Part Number: DRV8704 Hi I'm currently using an DRV8704 to drive a linear motor actuator, When I'm measuring MOT0A vs GND, I can see a negative voltage of -8.7V, it’s quick, around 10ns. I’ve tried to remove it by adding 2 Schottky diode…

  • DRV8704: drv8704

    TI Thinks Resolved
    Part Number: DRV8704 DRV8704 Dear Sir/Madam, We use the DRV8704 in multiple products. The DRV8704 controls MOSFETS in an H-bridge configuration for brushed DC motor control purposes (PWM 18kHz). Sometimes the DRV8704 produces a gate driver fault. We…
    • Answered

  • DRV8704: full system simulation tool

    Resolved
    Part Number: DRV8704 What is our approach for simulating a full system, motor driver AND motor? What are the tools and software recommended? Thank you!
    • Resolved

  • DRV8704: SPI configurations for when driving two motors independently

    Part Number: DRV8704 While the 8704 is capable of driving two motors it seems to feature a single SPI register for TORQUE, ENBL, OCPTH, and others. Is there a way to circumvent the limitation of having a single parameter for both motors, for instance, torque…

  • RE: DRV8704: DRV8704-FAULT

    Pandiyan, Thank you for the confirmation. Regards, Ryan
    • Answered

  • DRV8704: DRV8704: Predriver Fault issue

    Resolved
    Part Number: DRV8704 Hi all. Cant get DRV8704 work. Immediately after I turn anu motor on Im getting a predriver fault error Configuration: ConfigRegisters.CTRL.bits.ENBL = 1; ConfigRegisters.CTRL.bits.ISGAIN = drv8704_isgain_5; ConfigRegisters…
    • Resolved

  • RE: DRV8704: Pre-Driver Fault (PDF) on High Power motor

    Hi Grzegorz Thanks so much for your suggestions I have changed DECAYMOD to Force Slow Decay. It still triggered the fault. Grzegorz Pelikan said: With 1.5mOhm current sense resistors current regulation should kick in at around 45A for 40V/V not 15A. Yes…

  • DRV8704: Weird Gate driver behaviour

    TI Thinks Resolved
    Part Number: DRV8704 After resolving my Predriver fault I faced another issue. Contstanly getting xOCP overcurrent protection flag. Started to dig a bit and here is what I found: These are waveforms from each gate of one bridge, after xIN1 set high. It…
    • Answered

  • DRV8704: Work temperature

    Resolved
    Part Number: DRV8704 Hi, I need a clarification about the work temperature of the DRV8704DCPR (Dual H-BridgePWM Gate Driver) : The datasheet reports: 1) Operating ambient temperature range: -40°C < Ta < +85°C 2) Operating virtual junction…
    • Resolved

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