MinebeaMitsumi offers a wide range of battery ICs, supporting configurations from single-cell to multi-cell battery packs. These ICs are suitable for a variety of applications, from mobile devices to electric bicycles. Designed with high detection accuracy and rich functionality, these battery ICs ensure safe charging and reliable protection of rechargeable batteries. Designed using a high-voltage CMOS process, MinebeaMitsumi ICs provide comprehensive protection for rechargeable Lithium-ion and Lithium-polymer batteries. They protect against overcharge, overdischarge, overcurrent during charging and discharging, as well as short circuits. They integrate four voltage detectors, a short-circuit detection circuit, reference voltage sources, an oscillator, a counter circuit, and logic circuits to ensure reliable and efficient battery protection. The MM3722 series are protection ICs for Li-ion rechargeable batteries, providing high-precision charge and discharge current detection via a current detection resistor (Rsns). In single-cell battery packs, the on-resistance of the FET switch is typically used for overcurrent and short-circuit detection. However, the MM3722 achieves highly accurate overcurrent and short-circuit protection with minimal temperature dependence by using a dedicated chip resistor.
MM3722 features :
- Range and accuracy of detection voltage
- Delay time setting
- 0V battery charging function selectable : "Allow" or "Prohibit"
- Low current consumption
Part No. | Number of Cells | Overcharge Detection Voltage [V] | Overdischarge Detection Voltage [V] | Discharge Overcurrent Detection Voltage [mV] | Charge Overcurrent Detection Voltage [mV] | Package |
MM3722 | 1 | 3.6~5.0 | 2.0~3.0 | 20~150 | -150~-20 | SSON-6J SSON-6M SON-6C |
MM3722AJ1YRE | 1 | 4.425 | 2.5 | 36 | -20 | SON-6C |
MinebeaMitsumi Lithium-Ion battery management ICs are made in Japan. High quality products, they will match your application needs.