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TPS62932: Max power

Shuhei Goto
Intellectual 2550 points
Part Number: TPS62932

Hi team,

Is there available max power data?

It is best if you have a graph that plots the output voltage or output power on the one axis with the output current on the other axis.

Customer assume that 5V × 3.5A = 17.5W. And they would like to guarantee by data.

Best regards,

Goto

  • 0
    TI__Genius 15347 points

    Hello Goto,

    TPS62932 could support 22Vout_max, 2A Iout_max. But the thermal would be worse with higher output power. Customers need to check thermal performance in this application.

    About your application, 5V 3.5A, our device cannot support the current higher than 2A. 3.5A Iout will trigger device current limit.

    What's your input voltage? I can help you select other suitable parts.

  • 0 in reply to Miranda Gu
    TI__Intellectual 2550 points

    Hi Miranda,

    Customer wants to know the maximum allowable power in the short time it takes for OCP to ON. 

    Best regards,

  • 0 in reply to Shuhei Goto
    TI__Expert 8100 points

    Hi,

    My colleague will give you reply later!

    BRs

    Zixu

  • 0 in reply to Shuhei Goto
    TI__Genius 15347 points

    Hello Goto,

    Our device implements cycle-by-cycle current limit, it will clamp IL to current_limit. So I think max output power will be current_limit multiplied by 5Vout, here current_limit should be the average value. Datasheet lists peak value (high-side OC) and valley value (low-side OC). If peak_OC triggered, the average value should be peak_OC minus 1/2*IL_ripple.

    Your case 3.5A is very large, even higher than peak_OC 3.4A, device cannot output that high current, output voltage will decrease to 0 and UVP will be triggered.