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TPS54260EVM-597: TPS54260EVM-597 / Measured UVLO voltage is different from calculated value

Part Number: TPS54260EVM-597


I measured UVLO voltage by using TPS54260EVM-597 with all default external components, then it's different from calculated value as attached. Then I tried to calculate with twice current source (I1 and Ihys), then the calculated result is similar with measured voltage. So I'd like to know if there is possibility that the internal current source vary such twice value.

Best Regards,

Satoshi / Japan Disty