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CC1350: CC1350 related issues

Li Chen92
Expert 3040 points
Part Number: CC1350
Other Parts Discussed in Thread: DRV8871

Hi TI expert

I want to pass signal through optocoupler PC817 using MCU CC1350 launchpad XL to my motor driver DRV8871. For appropriate circuitry and resistor value of optocoupler I want to know that how much current CC1350 can source on GPIO pins

Thanks and Best regards,

Thomas

  • 0
    TI__Guru**** 317180 points

    This is not directly defined. As you see from "5.19 DC Characteristics" in the Datasheet the DIOs are spec'ed to handle 4 mA/ 8 mA current and still have a valid logic '1'. If you draw a higher current that this the output voltage will go further down. The pad cells are not designed to handle higher current than stated in the datasheet.