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DRV8353RS-EVM: DRV8353RS-EVM

athivel A
Prodigy 20 points
Part Number: DRV8353RS-EVM
Other Parts Discussed in Thread: DRV8316, DRV8311, DRV832X

i am new to this one. i read down the data sheet and configure the setting but motor specification is not correctly calibrate.

i am using a sensorless motor for learning purpose.

gimbal motor 2805/140kv. 

can you say me whether this motor is work on this board.

  • 0
    TI__Mastermind 18480 points

    Hi Athivel,

    Thanks for your question! You mention that the motor specification does not correctly calibrate. Do you mean that when you run the motor identification that the resistance/inductance and other motor parameters are not the same as what is in the motor datasheet? If so, would you be able to provide a screenshot of the GUI with the motor parameters that were calculated during motor identification as well as the values listed in the motor? What supply voltage are you using and what current consumption are you expecting?

    Regards,

    Anthony Lodi

  • 0 in reply to Anthony Lodi
    Prodigy 20 points

    motor : gimbal 2805/140kv

    turn :100-130

    volt :11.1-14.8v

    poles :14

    slot : 12

    Ri :13.5-22.0 ohm

    this is a specification i am having for motor.

    supply voltage : 12v  and 3A

    if any wrong in that suggest the right one.

  • 0 in reply to athivel A
    TI__Mastermind 18480 points

    Hi Athivel,

    The DRV835x device is more geared towards higher voltage designs since the abs max rating of the device for VDRAIN is 102V, however if you want to use it for a 12V system that should be fine as long as the supply stays above 9V. There are other devices which could work for your application as well, such as the DRV832x device or the DRV8316 or DRV8311 device. Both the DRV8311 and DRV8316 devices are integrated FET solutions which may be an advantage depending on your application. 

    After motor identification, when you try to operate the motor does it run but not smoothly? Or does it not run at all? Have you tried adjusting the Resistance Estimation Current, Induction Estimation Current, Motor Flux Estimation Freq, and Max Current based on the instructions given when you hover over the symbol next to it?  

    One note: The IDRIVE register values might default to 1A/2A source/sink current on the GUI that you are using, which is too high for the MOSFETs that are used on the EVM. I recommend changing the IDRIVE setting to 50mA/100mA source/sink current before operating the motor to avoid damaging the MOSFETs on the EVM due to too high of an IDRIVE. 

    Regards,

    Anthony Lodi