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TPS2662: TPS26621 - About Unused UVLO pin

Guru 21045 points
Part Number: TPS2662

Hi Team,

 

According to datasheet, If the Undervoltage Lockout function is not needed, the UVLO terminal must be connected to the IN terminal with

a 1 MΩ resistor. UVLO pin is 5 V rated and this resistor limits the UVLO pin current to < 60 μA. The UVLO terminal must not be left floating.

 

If we don’t use UVLO function and Input voltage is 24V, then UVLO pin is around 24V so more than 5V rated.

However, UVLO pin is protected by Internal 4.4V Zener diode.

Therefore, this usage does not have the problem.

Is my understanding correct?


 

Regards,

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