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LM3481 / UVLO setting

Guru 20090 points
Other Parts Discussed in Thread: LM3481

Hello,

I have questions about LM3481.

(1)UVLO setting
Can I use 5.1V of Zener Diode to UVLO ?
Our customer would like to set the UVLO to minimum voltage.
Thus, they would like to connect UVLO pin to Vin.
However, their Vin(max) is 16V and 16V is higher than the absolute maximum voltage of UVLO pins.

(2)LM3481 SEPIC Evaluation board
Vin(max) of EVM is 25V.
However UVLO divider setting is 40.2kohms(High Side) and 20.2kohms(Low side).
UVLO input voltage at the Vin(max) is higer than absolute maximum voltage of UVLO.
Please kindly check and please revise the document if need it.

Best Regards,
Ryuji Asaka