Very many DC/DC controller IC's utilize an under voltage lockout feature by way of an external pin monitoring the applied voltage and comparing it with some internal reference, putting the IC into standby if this threshold is breached. Usually this pin is named "EN" or "UVLO".
I use a high resistance voltage divider to feed the EN pin on my IC. The divider is fed directly from Vin, the battery voltage, and set to output the correct threshold voltage when my batteries are discharged to my pre-defined limit.
When powered from Li-Ion batteries ( and probably any other battery I imagine ), when the threshold voltage is broken, the IC goes into standby mode. This removes the load on the battery, which raises the battery's voltage, which pushes EN over the threshold, and the IC resumes operation again for a few ms.
This cycle continues on and on until the battery, after 100's of 1000's of cycles, finally quits and doesn't bounce back to higher than the EN threshold.
My question is: what are the techniques used to feed the EN/UVLO pins of DC/DC converters to prevent this type of bounce? Is a separate comparator with wide hysteresis used instead of directly feeding EN?