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TPS25981: TPS259814LRPW UVLO

Aaron Spaete
Expert 4330 points
Part Number: TPS25981

Team, 

Is the UVLO a permanent fault?  I believe it is as it's the latch version.   Customer wants the system to be done ideally.  

The TPS25981xx implements undervoltage protection on IN in case the applied voltage becomes too low for the system or device to properly operate. The undervoltage protection has a default lockout threshold of VUVP which is fixed internally. Also, the UVLO comparator on the EN/UVLO pin allows the undervoltage protection threshold to be externally adjusted to a user defined value. Figure 8-1 and Equation 1 show how a resistor divider can be used to set the UVLO set point for a given voltage supply.

Regards,

Aaron