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High power BLDC sensorless driver

Sayali Shinde
Intellectual 705 points
Other Parts Discussed in Thread: DRV10987, MCT8329A, MCT8329EVM

Hello Team,

   we are looking for plug and play option for BLDC sensorless driver. I explore on TI product and found below options with high power rating , but this requires GUI to operated motor.

Is there  any IC or reference evaluation kit where we can connect three phase wire of motor and rotate without making any connection with laptop or GUI. we are looking for some integrated option like driver chip with integrated MOSFET without microcontroller.

Required power rating is 60V and 5 to 10A

Regards,

Sayali

  • 0
    TI__Mastermind 23840 points

    Hello Sayali,

    The GUIs for our MCx devices are intended to provide an easy way to tune the devices settings to what you need during evaluation process. Once you have determined the register settings that you require for the MCx device you can write these settings into the devices EEPROM. Once the EEPROM is loaded with your desired register setting the device will automatically load these settings at startup so you will no longer require the GUI or a connection to a laptop to operate the motor. 

    You can even load these settings into a device, so long as you know your desired register config, without using the GUI through\ I2C communication, please refer to this E2E FAQ on Programming an MCx BLDC Motor Through I2C.

    Sayali Shinde said:
    Required power rating is 60V and 5 to 10A

    Of our integrated control portfolio the MCT8329 is rated for 65V max. If the power rating is 60V nominal then this device may not be suitable for your application, for more information please refer to this E2E Blog. The MCT8329 is also an external FET device, unfortunately our integrated devices which have integrated MOSFETs are rated for ≤ 45V max.

    Regards,

    Joshua

  • 0 in reply to Joshua Horlander Cruz
    Intellectual 705 points

    Hello Joshua,

      Thank you for details, with integrated MOSFET which are rated  for 45V what is current of it.

    Regards,

    Sayali

  • 0 in reply to Sayali Shinde
    TI__Mastermind 23840 points

    Hi Sayali,

    For devices with integrated control and integrated MOSFETs that can support 40-45V max we have our MCx8316 devices, MCx8315 devices, and the DRV10987. The MCx8316 can support up to 40V - 8A peak the MCx8315 can support 40V - 4A peak, and the DRV10987 can support 45V - 3.5A peak. 

    Regards,

    Joshua 

  • 0 in reply to Joshua Horlander Cruz
    Intellectual 705 points

    Hello Joshua,

    I will go with MCT8329EVM and MCT8329A . current rating for both can be increase by changing MOSFET right? as you said I can use this as standalone by writing to their register values.

    Regards

    Sayali

  • 0 in reply to Sayali Shinde
    TI__Mastermind 23840 points

    Hi Sayali,

    Sayali Shinde said:
    current rating for both can be increase by changing MOSFET right?

    The current rating of the MCT8329A is dependent on the external MOSFETs are used, so yes the current limit can be increased by changing the external MOSFETs. However, the MCT8329EVM has a max current limit of 30A due to the screw terminals J10 and J11 having a limit of 30A.

    Sayali Shinde said:
    I can use this as standalone by writing to their register values.

    Correct, so long as you write the values to the registers then command the device to write the registers to EEPROM, then the device will run with that register configuration, even after a power cycle, without needing to reprogram the registers of the device.

    Regards,

    Joshua