MITSUMI
Protection of Lithium Ion Batteries (four cells in series) MM1294
Protection of Lithium Ion Batteries (four cells in series)
Monolithic IC MM1294
Outline
This IC provides protection for lithium ion batteries in the event of overcharging, overdischarging and overcurrents.
When anomalies occur during charging or at other times and excessive
voltages are applied, after a certain time has elapsed for each cell an external FET switch is turned off (overcharging detection); and in order to prevent overdischarge of the battery during discharge, when the
voltage of individual batteries falls below a fixed
voltage, an external FET switch is turned off (overdischarge detection), and the IC ...