pozzari
Junior Member level 1
i have a 12v battery and lm2576, and it have a shutdown pin from lm2576 to a npn transistor.
when the battery goes below 11 volts i put the shutdown pin to high and the lm2576 turn off.
The problem is... when the battery arrives at 11 volts the lm2576 turn off and in this same moment it turn on again because the battery returns to more then 11 volts, then the lm2576 goes on again... and off again...
It is a spike ??
How to turn off the lm2576 when battery goes discharge to 11 volts and turn on only when voltage goes more than 12 volts or is recharging?
Sorry my bad english
when the battery goes below 11 volts i put the shutdown pin to high and the lm2576 turn off.
The problem is... when the battery arrives at 11 volts the lm2576 turn off and in this same moment it turn on again because the battery returns to more then 11 volts, then the lm2576 goes on again... and off again...
It is a spike ??
How to turn off the lm2576 when battery goes discharge to 11 volts and turn on only when voltage goes more than 12 volts or is recharging?
Sorry my bad english