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  • DRV8840: Stalling current

    Part Number: DRV8840 Hello, I have some concerns about my circuit with DRV8840 driver. In design I don't have any MCU, only logic based on simple circuits and gates. M otor is BDC combined with gearhead (~200:1). So I'm using chopping current to limit…

  • DRV8840: help check SCH

    Part Number: DRV8840 1. The DRV8840 chip has no voltage output, and the power supply voltage is 24V 2. This has never happened before 3. Tested that each control port signal is normal 4. There are about 10 broken pieces

  • DRV8840: IT' S POSSIBLE USE THIS PART IN PARALLEL FOR REACH 10A ?

    TI Thinks Resolved
    Part Number: DRV8840 Other Parts Discussed in Thread: DRV8873 , DRV8243-Q1 , DRV8244-Q1 , DRV8245-Q1 I ask if it' s possible to connect together n°2 driver DRV8840 in parallel to reach a double current, so 10amps instead of 5amps? thanks

  • DRV8840: Schematic review

    Part Number: DRV8840 Hi, Could you please help review the schematic as attachment? I'd really appreciate your kindly help. Thanks. Kevin Xiong

  • DRV8840: When the motor is commutating, high pulsed current is present before entering the chopping current platform

    Part Number: DRV8840 Hi team, Here's an issue from the customer may need your help: In slow decay mode, high and low (no PWM) motor commutation occurs when the motor current is pulsed high before entering the chopping current platform, but no high…
    • Answered

  • DRV8840: Shoot-through protection

    Resolved
    Part Number: DRV8840 Hi team, Does DRV8840 have shoot-through protection circuit for H-bridge? If you have any explanatory materials on this, could you let me know? Also, if you have dead time information, could you let me know? Regards, Yamaguchi
    • Resolved
    • Answered

  • DRV8840: Is there an order to input to each pin?

    Resolved
    Part Number: DRV8840 Hi team, I received a question about DRV8840 from my customer. Is there an input order for each pin? For example, if a voltage within the absolute maximum ratings is applied to the input pins when VM is not applied, does it cause malfunction…
    • Resolved

  • RE: DRV8840: A big overshoot is observed at DRV8840 ISEN pin.

    Hi Rick, Thank you for your strong help. The customer confirmed that similar overshoot (about 1300mV) were generated between ISEN terminal and GND terminal of DRV8840 package not sense resistor terminals. Also they monitored the current which flowed from…
    • Answered

  • DRV8840: DRV8840 VCP Cap Value

    Resolved
    Part Number: DRV8840 Hello Team, I'd like to confirm about DRV8840. In the DS, VCP cap value is recommended as a 16V ceramic cap. I'm assuming that VCP-VM voltage is around 10V. Therefore 16V is recommended with margin? Thank you, Kauzki Kita…
    • Resolved

  • DRV8840: DRV8840 pharse input max frequency

    TI Thinks Resolved
    Part Number: DRV8840 Hi I want to use DRV8840 to control LED when out1 out2 are H,L ,it turns on red when out1 out2 are L,H ,it turns on green the logic is control by pharse pin but what is the max frequency the phase pin can receive the change the out1…

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