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TPS562209: About IVIN spec

Tsukui Yusuke
Guru 21930 points
Part Number: TPS562209

Hi,

Could you tell me about Ivin spec of electrical characteristics?

IVIN is the current consumed by the device itself.
Is this understanding correct?

When measured VIN current using EVM under no load conditions, the input current was greater than that (mA order).
This is not a correct measurement result because the measurement includes switching loss.
Is this understanding correct?

And Please tell me how to measure IVIN specs correctly .




Best regards,
Yusuke

  • 0
    TI__Expert 4875 points
    Hi Yusuke-san,

    Your understanding is mostly correct. Ivin is the non switching quiescent current IC controller consumed. You must disable the switching for measurement. Please use a DC source to apply 0.8V on FB and measure the input current under Vin=12V. You will get the non switching input current. Thanks!