Overview: .. MITSUMI Protection of Lithium-Ion Batteries MM1412 Protection of Lithium-Ion Batteries Monolithic IC MM1412
Outline
This IC protects lithium ion batteries in the event of overcharge, overdischarge and overcurrent. It has the following two functions: an overcurrent detection function that turns the external FET-SW off when a problem occurs during charging, etc. and excess voltage is impressed on each battery for longer than a certain time, and an overdischarge detection function that turns the external FET-SW off when battery voltage drops below a certain voltage during discharge, in order to prevent battery overdischarge. When these functions operate, the IC is put into low consumption current mode. It also has an overcurrent detection function that turns the FET-SW off when excess current flows due to a short or the like. Temperature conditions A: Ta=-25 ~ 75°C, B: Ta=-20 ~ 70°C, C: Ta=0 ~ 50°C, D: Ta=0 ~ 40°C, E: Ta=-20 ~ 25°C Series Table
Model Overcharge Overdischarge Overdischarge Overcurrent Overcharge Overcharge detection voltage detection detection reset detection detection hysteresis temperature SOP-8C, E VSOP-8A voltage (V) voltage (V) voltage (V) voltage (mV) voltage (V) conditions AW 4.350±0.025 C 220±50 2.3±0.1 3.5±0.2 150±15 Package CW EF EW FW GW JW HW KW LW MW NW PW 4.295±0.025 4.250±0.025 4.250±0.025 4.300±0.025 4.225±0.025 C C C C C 300±50 220±50 220±50 2.3±0.1 2.3±0.1 2.0±0.1 2.0±0.1 2.3±0.1 3.5±0.2 3.5±0.2 3.1±0.2 3.1±0.2 3.5±0.2 3.5±0.2 3.5±0.2 3.1±0.2 3.1±0.2 3.1±0.2 150±15 150±15 150±15 140±15 150±15 150±15 100±15 150±15 100±15 100±15 75±15 MM1412 ..
4.250±0.025 C 150±50 4.5±0.2 4.350±0.025 4.125±0.025 4.125±0.025 4.190±0.025 4.300±0.025 C C C C C 220±50 220±50 2.3±0.1 2.3±0.1 2.0±0.1 2.0±0.1 2.0±0.
