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  • DRV8428: FS current and smart tune

    Resolved
    Part Number: DRV8428 Hi team, My customer is considering to use the DRV8428P. Could you pleae help with the questions below? 1). The recommended full scale current is described 1A(max) in the d/s. Is it possible to use it for a current of about 1.2 A? …
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  • DRV8428: Fixed high for nSLEEP pin

    Resolved
    Part Number: DRV8428 Hi team, Could you give me comment on following customer question? nSLEEP can't be tied to DVDD, but other external 5V DCDC can be connected to fix the logic high. Is it correct? Q1. Can nSLEEP be directly connected to 5V DCDC…
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    • Answered

  • DRV8428: what is the leakage current at Vref pin?

    Resolved
    Part Number: DRV8428 What is the leakage current at Vref pin? My customer needs to determine the values of the voltage divider and the capacitor for PWM control. Without knowing the leakage current it is difficult to determine those components, despite…
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  • DRV8428: EVM : Sin waveform

    TI Thinks Resolved
    Part Number: DRV8428 Hi, This is requirement which is continued from e2e.ti.com/.../3583042 Customer evaluates the sin wave with changing DECAY/TOFF. It looks like the wave with 249kohm is closest to pure sin wave. But it still has flat at zero cross.…
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  • DRV8428: Reversal each 128 steps

    Resolved
    Part Number: DRV8428 Hello Guys, Good day. Our customer is driving a PKP213D05 Oriental Motor with minimal load. 128 microstepping and 10us pulse length. He can repeatably do 360 degrees with no lost steps. Yet when he slowmo, he sees a brief reversal…
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  • DRV8428: Is there a way to know the indexer state?

    Resolved
    Part Number: DRV8428 I need to know the state ot the indexer to be able to control the position of the motor shaft angle. Is the state for example set to 1 when enabling the device (EN/nFAULT going from 0 to 1)? I coildn't find any info about this in…
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  • DRV8428: Motor oscillation

    Resolved
    Part Number: DRV8428 Motor oscillates instead of maintaining DIR and driver and motor get hot. DIR scopes constant during step pulsing I have: VRef 1.27v (R = 100K) SLEEP and EN/FAULT tied together VM = 24v tried all HI LO HIZ settings for M0 M1 used…
    • Resolved

  • DRV8428: How to set the VREF voltage based on motor characteristics?

    TI Thinks Resolved
    Part Number: DRV8428 Hi, My motor parameter is as below. How can I know what Vref and Itrip setting based on my motor parameter? thanks. Alpha

  • DRV8428: What is the recommended bulk capacitance for 16.5V input, 600mA to the motor?

    TI Thinks Resolved
    Part Number: DRV8428 What is the minimum capacitance that should be used for this application? One challenge they have is height limitation, it only allows for 4mm height components. Are there any other suggestions other than electrolytic caps?

  • DRV8424: DRV8424 FW and layout question

    Part Number: DRV8424 Other Parts Discussed in Thread: DRV8428 , , DRV8425 Hi Expert, My customer have swing machine and use competitor A4985. Now we have opportunity to replace by our DRV8428. My customer is asking that if change solution from A4985 to…

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