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DRV8833C: Latching solenoid valve driving problem through DRV8833C

manik sonawane
Prodigy 20 points
Part Number: DRV8833C
Other Parts Discussed in Thread: DRV8833

Hello All,

I am experimenting to drive a latching solenoid valve through DRV8833C , I have given high signal to nSleep pin and appropriate logic to IN1 and IN2 pins through controller. checked there is no fault output also

but still output is not getting, for 600mA current I have connected 100 microfarad bulk capacitor to battery o/p also. Please help me what are reason including supply voltages and byepass capacitors for not operating of drv8833.

Also I have tried by connecting current sense pin to ground also.

please guide

Thanks & Regards

Manik

  • 0
    TI__Genius 14485 points

    Hello Manik,

    Can you please give me more details to explain how the device is not operational? Can you please check the following things?

    • Do you see a voltage on the OUT pins when you bring the IN pins high?
    • Do you see any current flowing from the OUT pins?
    • Does VINT measure at 3.3 V?
    • Does VINT have the correct bypass capacitor on it?
    • Do you have a pullup resistor on nFAULT? If you do not, then it will not report a fault.