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  • RE: DRV8840: OCP time tolarence

    Hi Joyce, Do you have any updates on your side? I have verified that the tocp is on the order of 3 us and the Iocp is 6A. This was done by putting a 3-ohm resistor on the output and I have captured the current waveform below: Best, Keerthi

  • DRV8840: OCP doesn’t work at the condition of 6A and 8ms

    Part Number: DRV8840 Dear Specialists, My customer is encountering the same situation. I would be grateful if you could advise. --- According to the related thread, the conditions for an overcurrent event are commented as current >6A 3.75us±30%.…
    • Answered

  • DRV8840: DRV8840 Has No Output

    Resolved
    Part Number: DRV8840 Hi I use DRV8840PWP on my design. But i have no voltage at the output. You can see my sch below. - I see 3v3 correctly at the nSleep, nReset, Phase and Enable pins. ( As i apply ) - I se 3v3 correctly at the V3P3OUT. - I see about…
    • Resolved

  • DRV8840: volt ampere characteristic curve

    TI Thinks Resolved
    Part Number: DRV8840 HI Teams: What equipment and fixtures are required for testing the volt ampere characteristic curve of DRV8840?
    • Answered

  • DRV8840: DRV8840PWP Current Control

    Resolved
    Part Number: DRV8840 Hello I want to use DRV8840PWP on my project. However i do not want to use Current set inputs pins of DRV8840PWP. ( I0-I1-I2-I3-I4 / 23-24-25-26-27 ). I will not use current regulation. So i tied ISENSE pin to GND and VREF pin to V3P3. …
    • Resolved
    • Answered

  • DRV8840: The State of nFAULT while nRESET is Low

    Resolved
    Part Number: DRV8840 Dear Specialists, The customer is considering DRV8840 and has questions. I would be grateful if you could advise. • What is the state of nFAULT while nRESET is low? Is it in a high impedance state? • If the error condition persists…
    • Resolved

  • DRV8840: DRV8840 : Can I change directions without DEAD TIME during motor operation?

    Part Number: DRV8840 DRV8840 : Can I change directions without DEAD TIME during motor operation?

  • DRV8840: abnormal heat of chip occurs

    TI Thinks Resolved
    Part Number: DRV8840 Hi team, Here's an issue from the customer may need your help: The device outputs and connects 104 capacitors on OUT1, OUT2, drives at 25 KHz, 80% duty cycle, circuit around 1A. Why the chip would have abnormal heat condition…

  • 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: 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

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