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Original question:

TPS2552: Enable behavior and its threshold variation

TPS2552: looking USB current limit with OVP function

Ben Kuo
Expert 7570 points
Part Number: TPS2552

Dear team,

Customer need USB current limit IC for safety 62368-3.

The Maximum output current is up to 2A and need OV protection to clamp voltage at 6.5V.

They are using TPS2552 now, but this part does not have OVP feature.

Could you recommend the suitable solution for USB(5V/2A) and support safety 62368-3?

Thanks.

Regards,

Ben

  • 0
    TI__Expert 8980 points

    Hi, Ben,

    None of our power switches have OVP function, because those parts are not designed for 62368-3. As I know, 62368-3 is not a system level certification, it's recommended but not must to have. So this not going to be a requirement from my understanding.

    So your customer must have 62368-3 certification or not? Can you just add a zener diode to clamp the voltage?

    Bob

  • 0 in reply to Bob Ma
    TI__Expert 7570 points

    Hi Bob,

    Yes, they want to design a robust system in next PCB build. I will check if they can add TVS at Vbus or not.

    Thanks.

    Ben