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  • DRV8834: Controlling trip current with xVREF under indexer mode

    Resolved
    Part Number: DRV8834 Hi team, When driving stepping motor with DRV8834 in indexer mode, is it supported to control Ifs with xVREF? My customer wants to use it to actively control the trip current depending on motor's driving or stopping state. However…
    • Resolved
    • Answered

  • DRV8834: The stepper motor voltage issue

    Resolved
    Part Number: DRV8834 Hi team, As per Table 6 in Section 9.2.2.1 of the datasheet, can the DRV8834 only drive a stepper motor at 6V? If a 10-V stepper motor is to be driven, can VM be applied at 10 V? Or what kind of circuit should be added? Could you…
    • Resolved
    • Answered

  • DRV8834: Facing production issues. Question regarding a missing part

    Resolved
    Part Number: DRV8834 Hi, I have a project which is in production right now. Our company has not worked on the design but we are building production units for this project. One of the recent issues which came up was a component getting knocked off while…
    • Resolved
    • Answered

  • DRV8834: IC recommendation for stepper motor

    Resolved
    Part Number: DRV8834 Hi Team, Hi Team, Can you help recommend IC for stepper motor? Thanks. Requirements are as follows: 1. Output interface: one I2C. 2. Motor control mode: constant voltage bipolar 3. Motor channel: 1 channel 4. Power supply voltage: within…
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    • Answered

  • DRV8834: About Current sense amplifier gain(AISENSE)

    Resolved
    Part Number: DRV8834 Hi Team, Could you please let us know Min and Max value of AISENSE at TA=-40 ℃ to 85 ℃ ? Because, we would like to know the error of ITRIP without error of xVREF and RISENSE. Regards, Hide
    • Resolved
    • Answered

  • DRV8834: Motor voltage clamping

    Resolved
    Part Number: DRV8834 Hi, I'm using DRV8834 to drive a small stepper motor to open/close an air vent. If a user manually opens the vent, we think the backdrive may be causing a small number of field failures as the energy from the manually rotated motor…
    • Resolved

  • DRV8834: AVREF and BVREF voltage in indexer mode

    TI Thinks Resolved
    Part Number: DRV8834 Hi team, Here's an issue from the customer may need your help: When using the DRV8834 to control the stepper motor, the indexer mode of 8834 is required (16 microsteps are used simultaneously). In addition, the peak of the output…

  • DRV8834: Discrepancy in datasheet

    TI Thinks Resolved
    Part Number: DRV8834 Other Parts Discussed in Thread: DRV8843 , , TCA6416A Hi team, Can you have a look at the following customer inquiry, please? In a test setup we are currently using the DRV8843 to control a stepper motor. I noticed contradictory information…

  • DRV8834: Can DRV8834 support different stepper motor resolution output?

    TI Thinks Resolved
    Part Number: DRV8834 Hi All, Our smart glasses project needs to use a stepping motor to achieve diopter adjustment and interpupillary distance adjustment functions. The specific parameter requirements are as follows: 1) D iopter adjustment: 3.6V input,…

  • DRV8834: Stepper driver 1-phase excitation

    TI Thinks Resolved
    Part Number: DRV8834 Hi Team, May I ask for help? Our customer have a concern as shown below: "Are there any TI stepper motor drivers that has 1-phase excitation mode when running in full-step mode? All I have found are only supporting 2-phase excitation…

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