Search tips
Showing 144 results View by: Thread Post Sort by

  • DRV8811: Hardware failure: the driver does not work anymore, short-circuit from the B2 or B1 pins to ground

    Part Number: DRV8811 Tool/software: The driver works driving a little step motor in full-step mode, the max current is configured to be <500 mA using sense resistors of 0.4 Ohm and Vref 1.55 V, Vcc is 3.3V. We experienced similar failures (shortcircuit…
    • Answered

  • DRV8811: DRV8811 Chip Failure

    Resolved
    Part Number: DRV8811 Hi, We are having a DRV8811 based PCB that driving a stepper motor which is used to control valve movement. Recently we are seeing some PCB failures. After some debugging and it is found the DRV8811 has been failed due to some…
    • Resolved
    • Answered

  • DRV8811: DRV8811 - COIL A stops working during operation

    Resolved
    Part Number: DRV8811 With the supply chain issues, we have been buying what we can get in the market. we have been having field issues regarding with this driver and reading through the forum I ran across a discussion that sounds exactly what we are seeing…
    • Resolved

  • DRV8811: DRV8811

    TI Thinks Resolved
    Part Number: DRV8811 Hi Sir, Customer asked if DRV8811 has similar data as below, DRV8811 will replace Allergo but need data as below, Thanks, Ian.

  • DRV8811: peak current difference between AOUT and BOUT

    Part Number: DRV8811 HI Expert, My customer find the peak current on both AOUT and BOUT. 1. Could you please let me know the reason of this peak current? 2. Also, could you please let me know the reason of difference peak current between AOUT…

  • DRV8811: UVLO Minimum value

    TI Thinks Resolved
    Part Number: DRV8811 Hi Expert, VM UVLO for rising is 6.7V(typ) and 8.0V(max) from datasheet. Could you please let me know the VM UVLO value for falling ? Is it same value? Also, please let me know the minimum value. (There is no problem with…

  • DRV8811: Different current between AOUT and BOUT

    Part Number: DRV8811 Hi expert, Could please give me your advice for root cause of the following difference between AOUT and BOUT current. -In the waveform, the current is insufficient on the High current side, and it should be 0A on the Low…
    • Answered

  • DRV8818EVM: replace DRV8818 with DRV8811

    Resolved
    Part Number: DRV8818EVM Other Parts Discussed in Thread: DRV8811EVM , DRV8811 , , DRV8818 Hi team, My customer needs DRV8811EVM for evaluation, but cannot find any stock from TI or disty. Can we use DRV8818EVM? It seems possible if we replace DRV8818…
    • Resolved
    • Answered

  • DRV8811: Indexer

    Resolved
    Part Number: DRV8811 Hi Expert, The step angle of the step#2 for 1/8step is 11.325 in datasheet table2 . Is it typo? I think, it is 11.25 from around values. Also, which is correct actual behavior? 1) Actually, outputs will be set Aout=98…
    • Resolved
    • Answered

  • DRV8811: DRV8811 Unstable Holding Current

    Resolved
    Part Number: DRV8811 Other Parts Discussed in Thread: DRV8880 Hello, Above is a shot of the issue with my motor driver. It is a snapshot of two current probes across a coil. Using an FFT sound analyzer on my phone, I hear 850Hz which matches…
    • Resolved

Didn't find what you are looking for? Post a new question.