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  • DRV8889-Q1: design problem

    Part Number: DRV8889-Q1 Tool/software: hi expert, my customer use GUI to control DRV8889-Q1 and find the big noise about step motor. customer want to know how to understand the Torque, how to set this , and what specific impact does this parameter have…

  • DRV8889-Q1: Fault Pin Voltage being at 1.3V before going HIGH (3.3V).

    Part Number: DRV8889-Q1 Tool/software: Hi, I'm currently performing testing on the Motor Driver DRV8889-Q1, while testing i observed the Fault pin is intially at 1.3V before it goes HIGH (3.3V). As per the datasheet, Fault Pin is an Open drain which…

  • DRV8889-Q1: what is the CPOL and CPHA of our device

    Part Number: DRV8889-Q1 Tool/software: Hi team, what is the CPOL and CPHA of our device? I see from datasheet about SPI Transaction, does this mean CPOL = CPHA=0? BR, Bengi

  • DRV8889-Q1: Special work condition consideration

    TI Thinks Resolved
    Part Number: DRV8889-Q1 Tool/software: Hello team, Kindly ask several questions: 1: When the step motor is running, if the SPI signal is lost at this time, what will happen to the step motor? Will it stop at its current location? 2: When the step motor…

  • DRV8889-Q1: DRV8889QPWPRQ1

    TI Thinks Resolved
    Part Number: DRV8889-Q1 Tool/software: Hi Team, I am MURALI SELVAM from India, I need reference design for below given part number, If you have kindly give me. DRV8889QPWPRQ1 Thank you

  • DRV8889-Q1: Stall detection issues

    Part Number: DRV8889-Q1 Tool/software: Hello team, Greeting for the day. When TRQ_COUNT < STALL_TH, nFAULT is still high and STL bit is 0, attached file is the related registers. Can you help analyze the reason? Thanks. Debug Record.xlsx

  • DRV8889-Q1: How to increase TRQ_COUNT

    Part Number: DRV8889-Q1 Tool/software: While I am turning the motor, I will read TRQ_COUNT periodically. And I will customize a threshold value as the standard for judging a stall. When I use Motor A, TRQ_COUNT can reach more than 50, but when I use…

  • DRV8889-Q1: MAX current varies depending on PPS

    Part Number: DRV8889-Q1 Other Parts Discussed in Thread: , DRV8434S , DRV8452 , DRV8461EVM , DRV8461 , MSP-MOTOR-CONTROL Tool/software: Me and my colleagues are investigating an issue where we observe different different maximum current values depending…

  • DRV8889-Q1: Configuration Issue

    Part Number: DRV8889-Q1 Tool/software: I'm using the DRV8889 IC to drive a stepper motor. I'm unable to get it running , I suspect the format of data sent over SPI is not proper. Could you please provide the format of the data to be sent I'm…

  • DRV8889-Q1: Stall Detection problem

    Part Number: DRV8889-Q1 Tool/software: Hi motor driver expert, Due to last minute mechanical design change, customer needs to use stall detection feature to achieve their desired function. Customer followed the user guide and did some tests as described…

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