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  • 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…
    • Resolved
    • 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: 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…

  • 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: Issues about driving stepper motors in indexer mode.

    TI Thinks Resolved
    Part Number: DRV8834 Other Parts Discussed in Thread: DRV8434 Hi team, Stepper motor specifications: 2-phase, 1.8 degrees, 4.9 V nominal, 0.7 A nominal, 7 ohm phase resistance, Phase inductance of 5 mh. The customer intends to use 32 microsteps for control…

  • DRV8834: An issue with the external DAC on the xVREF pin of the chip

    TI Thinks Resolved
    Part Number: DRV8834 Other Parts Discussed in Thread: DAC60502 , Hi team, Is it possible to dynamically adjust the current maximum of the 8834 by connecting the two analogue outputs of the DAC60502 chip directly to the AVREF and BVREF pins of the DRV8834…

  • DRV8834: Enable Causing Bad Output Coil Waveforms

    Part Number: DRV8834 Hello, I am using a 5v bipolar stepper motor with the drv8834. config is in indexer mode (permanently tied, not GPIO controlled) m pins selected for full steps (permanently tied, not GPIO controlled) Sleep pin connected to logic high…

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