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UCC27282-Q1: UCC27282-Q1 usecase

Yuto Kitamura
Expert 4000 points
Part Number: UCC27282-Q1

Hi team,

I would like to use UCC27282-Q1 with below condition. Does it work properly without any problems?

- Continuously input PWM signal to HI and LI
- while that, control EN-pin H/L occasionally to turn on/off the device 

Best regards,
Yuto

  • 0
    TI__Genius 11770 points

    Hello Yuto-san,

    For LO that would work. For HO, it would work as long as the high-side supply is maintained. Using the bootstrap circuit, the low-side FET needs to be turned on occasionally to recharge the high-side's bias. Therefore, it cannot be used "continuously". If you use a floating bias supply, it would work. You could also do what is listed in this document to make that. 

    Lastly, this device has an interlock feature, so LO and HO cannot be on at the same time. 

    Thanks,

    Alex M.