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TPS3897: The variation of the reset delay time

Part Number: TPS3897


We got a question from the customer about TPS3897.
Could you help us?

How should we estimate the variation of the reset delay time? We assume the delay time is determined by I(ct), V(ct), C(ct), and 40us. Therefore we can estimate this below equation. Is this our understanding correct?

 tpd(r) = V(ct) * (C(ct)/i(ct)) + 40us
 *These parameters are spcified min, typ, max value in datasheet

Best Regards,