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TIDA-010056: Not getting voltage across MOSFET

Part Number: TIDA-010056
Other Parts Discussed in Thread: MSP430FR2355, MSP430FR4133,

Hello TI Helpers,

I'm using CCS version 10.1.1.00004 . I have MSP430FR4133 launchpad used as burner  into my controller which has MSP430FR2355 MCU and gate driver circuit (DRV8353RH). I am working on BLDC motor controller. I have TIDA-010056_Firmware_1.0 code which i am using for my project and i give 24v using adapter to controller. I am able to burn code into my controller but i didn't get any voltage across MOSFETs(inverter circuit).i do not connect BLDC motor yet. I want 20v across MOSFETs but didn't get it. Is there any interfacing problem??? please help me?!

Thank you in advance

  • Hi Sudhir,

    Do you mean MSP430 already send the PWM signals to DRV8353RH but DRV8353RH has no output?

    if so, please check below possibilities:

    1) PIN33 ENABLE pin's voltage need high-level voltage (please use a multimeter to measure instead of reading by CSS)

    2) Check VM, DVDD, VCP and VGLS voltage is normal or not.

    Regards,

    Felix