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MM3746

SKU: MM3746

  • MinebeaMitsumi

One cell Li-ion/Li-polymer battery protection IC

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 MM3746 series are protection ICs equipped with a charge pump and capable of driving high-side N-channel FETs for secondary Lithium-ion and Lithium-polymer batteries. These ICs are particularly well-suited for smart battery packs that require communication between the battery pack and the host system. The MM3746 series also features temperature detection using an NTC thermistor, providing protection for both the battery pack and the system against overheating.

 

MM3746 features :

  • Range and accuracy of detection/release voltage
  • Temperature detection function : selectable between "Enable" and "Disable"
  • 0V battery charging function selectable : "Allow" or "Prohibit"
  • Low current consumption

 

 

 

Product namePackage0V battery charge functionOvercharge release functionOverdischarge release functionDischarging overcurrent release functionOvercharge detection voltage [V]Overcharge release voltage [V]Overdischarge detection voltage [V]Overdischarge release voltage [V] Discharging overcurrent detection voltage [V] Charging 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] Charging overcurrent detection  delay time [ms]Charging overcurrent release  delay time [ms]Short detection delay time  [ms]
MM3746BB1LBEWLCSP10AProhibitionvoltageLatchvoltage4.2704.1702.3002.3000.013-0.01000.0401.0202.0128.01.016.01.008.01.00.250
MM3746BC1LBEWLCSP10AProhibitionvoltageLatchvoltage4.4904.3862.9002.9000.033-0.01700.1401.0202.016.01.016.01.008.01.00.250
MM3746DA1LBEWLCSP10AProhibitionLatchLatchvoltage4.4454.4452.5002.5000.020-0.01600.0400.5122.0128.01.032.01.008.01.00.250

 

MinebeaMitsumi Lithium-Ion battery management ICs are made in Japan. High quality products, they will match your application needs.