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  • DRV8434A-Q1: DRV8434A device fault diagnosis

    Part Number: DRV8434A-Q1 Other Parts Discussed in Thread: DRV8434A Dear Team, Could you please provide us with the internal resistance values and their associated tolerances? This data is crucial for dimensioning the external circuits for faults differentiation…

  • DRV8434A-Q1: Improper Current regulation of DRV8434A-Q1

    Part Number: DRV8434A-Q1 Other Parts Discussed in Thread: DRV8434A , Dear TI team, we are doing measurement with the DRV8434A device with NEMA17 PR42HS40-1504 stepper motor. current regualtion is set 830mA. Full step mode control. we observed…

  • DRV8434A-Q1: DRV8434A-Q1 Input EMI Filter design automotive application

    Part Number: DRV8434A-Q1 Other Parts Discussed in Thread: DRV8000-Q1EVM Dear TI Team, We are concerned that the high slew rate of the output stage, which is fixed at 240V/us, may present challenges in passing EMI tests. We are following the layout guide…
    • Answered

  • DRV8434: DRV8434 vs DRV8434A Silicon Die

    Resolved
    Part Number: DRV8434 Hello, I would like to inquire if the DRV8434RGER and DRV8434ARGER share the same silicon die to determine whether external radiation test results conducted by the NASA Space Radiation Laboratory on the DRV8434 can be considered…
    • Resolved

  • DRV8434A: DRV8434A

    TI Thinks Resolved
    Part Number: DRV8434A Tool/software: We have set the micro-stepping to 1/16 and adjusted the Vref to 1.2V. Then the stall detection has improved. We are able to achieve close to 85-90% stall detection. Thanks for the support.
    • Answered

  • DRV8434A: Space rated stepper motor drivers

    Resolved
    Part Number: DRV8434A Other Parts Discussed in Thread: DRV8351-SEP Hello, Could I ask you if there are any planned space rated stepper motor drivers? I can find DRV8351-SEP: 40V Three-Phase BLDC Gate Driver, but I cannot find any space rated stepper…
    • Resolved

  • DRV8434A: DRV8434A - Stall detection not consistent

    Part Number: DRV8434A Tool/software: Hi, I am using the "drv8434apwpr" in one of the design. Have a question on the stall detection. The stall detection is not consistent. Initially, we had set the motor drive in "TorqueCount Mode" and checking the…

  • DRV8434A-Q1: HTSSOP package availability

    Part Number: DRV8434A-Q1 Other Parts Discussed in Thread: DRV8434-Q1 , DRV8889-Q1 Dear Team. we require suggestion for pinpointing the following failure on the device''s output pins(AOUTx and Boutx). Short to battery, Short to ground and Open load…
    • Answered

  • DRV8434A: TORQUE_COUNT typical values

    Resolved
    Part Number: DRV8434A Tool/software: I am trying to use this chip in the mode were I can just read the TORQUE_COUNT voltage but am not seeing expected results Setup: 1) STL_MODE =GND 2) STL_REP = GND 3) 1/8 step mode (M0,M1 high) My motor current…
    • Resolved
    • Answered

  • DRV8434A: Will setting the STL_TH pin to 0V reliably disable stall detect?

    Resolved
    Part Number: DRV8434A Tool/software: In my system I have the STL_MODE pin tied to VDD to enable stall detection. If I wanted to disable stall detection for any reason, would setting the STL_TH pin to 0V reliably do that? Or is a 330K resistor from the…
    • Resolved

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