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  • DRV8838: The motor current is negative

    TI Thinks Resolved
    Part Number: DRV8838 The customer is using DRV8838 to drive a brushed motor. But the motor current will decrease to negative value. And the speed of motor is very high. Could you please why the current is negative?

  • DRV8838: FW control and PWM control loop attention

    Part Number: DRV8838 There is a game controller project in which DRV8838 will be used. The customer want to know: Is there anything to pay attention to when designing the control loop？ and the FW control? Thanks

  • DRV8838: Schematic review

    TI Thinks Resolved
    Part Number: DRV8838 Dear Team, There is a good news that we DIN DRV8838 in customer's new project. Could you help to review the schematic? Many Thanks Jimmy
    • Answered

  • RE: DRV8838: Motor not rotating in reverse direction

    Resolved
    Yes i have ordered DRV8838, here is the link from where i had ordered it : lcsc.com/.../Motor-Drivers_Texas-Instruments-DRV8838DSGR_C86667.html
    • Answered

  • DRV8838: Do I need Protect "MCU IC" PWM Output Pin ?

    Resolved
    Part Number: DRV8838 Hello: I want to use CC2652 generate PWM to control "DRV8838 H-Bridge Driver" and I noticed document about layout don't have protection circuit. My question, if i want to do it right, do I need add some Protect for CC2652…
    • Resolved

  • DRV8838: Data Transfer using isolator transformer

    TI Thinks Resolved
    Part Number: DRV8838 Other Parts Discussed in Thread: DRV8837 Hello Can I use DRV8838 or DRV8837 for transmitting digital data in low frequency like 2400bps using isolator transformer ? I need to change the polarity of the primary winding repetitively…
    • Answered

  • DRV8838: Through-hole options

    Resolved
    Part Number: DRV8838 I currently have a DRV8838 single channel H-bridge breakout from Pololu as seen here . I am in the prototype stage at the moment and building my circuits on breadboards/perfboard. I searched DigiKey but could not find a through-hole…
    • Resolved
    • Answered

  • DRV8838: PH/EN interface question based on datasheet

    Resolved
    Part Number: DRV8838 In the DRV8838 datasheet , they list the following block diagram for the DRV8838 motor controller: My question is regarding the EN/PH components in the diagram. My interpretation is that EN and PH have internal pull down resistors…
    • Resolved

  • CCS/DRV8838: how can I know the speed of the motor?

    TI Thinks Resolved
    Part Number: DRV8838 Other Parts Discussed in Thread: DRV8837 Tool/software: Code Composer Studio Hello, I want to use PID to make sure the speed of the motors can maintain at the same value, but I don't know how to get the speed of the DRV8838 and…
    • Answered

  • DRV8838: How to generate biphasic current pulses

    Resolved
    Part Number: DRV8838 Hello, I am in dire need of help! I am trying to use DRV8838 motor drive to generate the following biphasic current pulse. Arduino pwm can provide EN and PH input to the DRV8838. Note that is a "CURRENT pulse" and not a voltage pulse…
    • Resolved

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