MM3855 Series

MM3855 series are protection ICs with thermal protection and control teminal for charge and discharge off mode for Lithium-ion and Lithium-polymer rechargeable battery. By using external thermistor, this protects the battery pack and system over temperature. In addition, it reduces the current consumption of system by using charge and dischrge off mode, when the system is shutdown.

For one-cell

1. Range and accuracy of detection/release voltage
●Overcharge detection voltage 4.1V to 5.0V 5mV step Accuracy±20mV
●Overdischarge detection voltage 2.1V to 3.0V 50mV step Accuracy±35mV
●Discharging overcurrent detection voltage1 6mV to 100mV 1mV step Accuracy±2.5mV ※1
●Discharging overcurrent detection voltage2 15mV to 100mV 1mV step Accuracy±3.5mV ※1
●Charging overcurrent detection voltage -6mV to -100mV 1mV step Accuracy±2.5mV ※1
●Short detection voltage 30mV to 200mV 10mV step Accuracy±5.0mV ※1
●0V battery charge inhibition battery voltage 0.9V Accuracy±0.3V

2. Temperature detection functionSelectable "Enable" or "Disable"

3. 0V battery Charge functionSelectable "Permission" or "Inhibition"

4. Control terminal for charge and discharge off mode

5. Current consumption (Not include NTC bias current)
●Normal mode Temperature detection function "Enable" 3.0µA typ. 5.0µA max.
　　　　　　　　　　　　Temperature detection function "Disable" 2.5µA typ. 4.5µA max.
●Standby mode Overdischarge latch function "Enable" 0.1µA max.
　　　　　　　　　　　　　Overdischarge latch function "Disable" 0.8µA max.

Package

• SSON-8F
• SSON-8G