Protection for Lithium-Ion Batteries
MM3474 Series
Outline
MM3474 series is an overcharge, overdischarge and overcurrent protection IC for a lithium-ion / lithiumpolymer rechargeable secondary battery. Lithium-ion / lithium-polymer rechargeable secondary battery overcharge each cell, over discharge, and discharge overcurrent, short circuits can be detected.This supports 3 to 5 serial cells connected in series, and switches over to the desired no. of cells by sending High / Low signal to SEL terminal.This also provides the control terminals of output over discharge detection (SDC) and output over charge detection (SOC), which allows configuring an application with fewer external parts for 6 or more cells connected in series.
Product Series
For 3 to 5cells
Specifications
| Product name |
Package | 0V battery charge function |
Overdischarge release function | Overcharge detection voltage [V] |
Overcharge release voltage [V] |
Overdischarge detection voltage [V] |
Overdischarge release voltage [V] |
Discharging overcurrent detection voltage [V] |
Short detection voltage [V] |
Overcharge detection delay time [s] |
Overcharge release delay time [ms] |
Overdischarge detection delay time [ms] |
Overdischarge release delay time [ms] |
Discharging overcurrent detection delay time [ms] |
Discharging overcurrent release delay time [ms] |
Short detection delay time [ms] |
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