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  • DRV10974: DRV10974 can't switch from open to close loop

    TI Thinks Resolved
    Part Number: DRV10974 Dear Expert Our motor is a r ated motor voltage 5V, maximum voltage 5.5V; Rated speed 12000rpm, maximum speed 135000rpm; Rated current 400mA, maximum current 550mA; Phase resistance 6.5± 10% ω; Three-phase dc brushless motor…
    • Answered

  • DRV10974: DRV10974 12-V, Three-Phase, Sensorless BLDC Motor Driver

    Resolved
    Part Number: DRV10974 Other Parts Discussed in Thread: DRV10970 Hello Team, For driver IC DRV10974 the speed of motor is control by applying analog or digital signal to PWM input. what is analog range for speed output (min and maximum value). if we…
    • Resolved

  • RE: DRV10974: Fail to go out of open-loop

    Hello Patryk, Do you need any further assistance on this thread? Thanks, Matt
    • Answered

  • DRV10974: Recommended motor for DRV10974EVM KIT.

    Resolved
    Part Number: DRV10974 Hi, TI expert In order to verify the operation of the DRV10974 by the customer, the DRV10974EVM KIT was purchased from TI.COM. DRV10974EVM | Buy TI parts | TI.com During operation, the motor does not maintain a constant speed, and…
    • Resolved

  • DRV10974: DRV10974: Motor is stalled but Motor Driver gives high frequency FG signals, and power the stator continually, but no rotation!

    TI Thinks Resolved
    Part Number: DRV10974 Hi We are using the 10974 for our water pumps, but we have a few that is not starting up but gives Tacho/FG signal at unnormal high frequency, and the Motor Driver is giving the power out to the Stator, so it act as if not stalled…
    • Answered

  • DRV10974: Acceleration Settings

    Resolved
    Part Number: DRV10974 HI, Staff DRV10974 Datasheet P20 Table 7-2, second from left, "CLOSED-LOOP-ACCELERATION TRANSITION TIME" is written. I think this is OPEN-LOOP, but is my perception wrong? best regards caf…
    • Resolved

  • DRV10974: DRV10974

    TI Thinks Resolved
    Part Number: DRV10974 Other Parts Discussed in Thread: DRV8306 , DRV8320 , DRV8304 Hi I need five amps continous. Please look at attached cicuit. If i omitted the bipolar transitors , can i not add N and P channel mosfet , with a fast recovery diode feed…

  • DRV10974: Faster deceleration

    TI Thinks Resolved
    Part Number: DRV10974 Hi Team, Our customer would like to know why the deceleration rate of DRV10974 is much lower than the acceleration rate. Is it possible to change the direction of rotation when the motor is running by changing the FR input? If it…

  • DRV10974: Question for DRV10974

    Part Number: DRV10974 Hi Team, Customer used DRV10974 external drive motor. After the chip is powered on, the brushless motor started to accelerate at soft start. After the acceleration phase ended, the speed immediately became zero. After restarting the…

  • DRV10974: increase current

    TI Thinks Resolved
    Part Number: DRV10974 Other Parts Discussed in Thread: DRV10987 Hi USING DRV10974 , WANT TO ADD EXTERNAL MOSFETS TO THE OUTPUTS , SO I CAN INCREASE CURRENT TO 3 PHASE BRUSHLESS motor. Do you have a reference design please or some info ? Thanks Colin

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