MM3855 Series

Lithium-Ion Battery protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge, discharging overcurrent, charging overcurrent, and short protection of the rechargeable Lithium-ion or Lithium-polymer battery can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources, oscillator, counter circuit and logical circuits.

Outline

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.

*1 Accuracy of overcurrent detection voltage

Click the arrow icon in the table below to switch from ascending to descending order.

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Product name	Package	0V battery charge function	Overcharge release function	Overdischarge release function	Discharging overcurrent release function	Overcharge detection voltage [V]	Overcharge release voltage [V]	Overdischarge detection voltage [V]	Overdischarge release voltage [V]	Discharging overcurrent detection voltage1 [V]	Discharging overcurrent detection voltage2 [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 time1 [ms]	Discharging overcurrent detection delay time2 [ms]	Discharging overcurrent release delay time [ms]	Charging overcurrent detection delay time [ms]	Charging overcurrent release delay time [ms]	Short detection delay time [ms]	Temperature protection detection delay time [s]	Temperature protection release delay time [s]	High temperature detection temperature1 [deg.C]	High temperature release temperature1 [deg.C]
MM3855AC1RRE	SSON-8ForG	Prohibition	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0240	0.100	1.024	16.0	64.0	1.0	32.0		4.25	16.0	1.0	0.280
MM3855AJ1RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.475	4.325	2.400	2.600	0.0350	0.0500	-0.0350	0.100	1.024	1.0	64.0	1.0	4096.0	16.0	1.00	16.0	1.0	0.280	0.512	0.032	60	55
MM3855AL1RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0205	0.0295	-0.0265	0.070	1.024	1.0	64.0	1.0	4096.0	16.0	8.00	16.0	4.0	0.280
MM3855AL2RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0225		-0.0210	0.100	1.024	1.0	20.0	1.0	16.0		8.00	16.0	4.0	0.300
MM3855AN1RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.180	4.070	2.300	2.500	0.0210		-0.0190	0.100	1.024	16.0	96.0	1.0	16.0		4.00	32.0	1.0	0.280
MM3855BC1RRE	SSON-8ForG	Prohibition	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0150		-0.0150	0.046	1.024	16.0	64.0	1.0	32.0		4.25	16.0	1.0	0.250
MM3855BC2RRE	SSON-8ForG	Prohibition	voltage	voltage	voltage	4.520	4.320	2.300	2.500	0.0150		-0.0150	0.046	1.024	16.0	64.0	1.0	64.0		4.25	64.0	1.0	0.280
MM3855BC3RRE	SSON-8ForG	Prohibition	voltage	voltage	voltage	4.520	4.340	2.300	2.500	0.0140		-0.0150	0.050	1.024	16.0	64.0	1.0	128.0		4.25	64.0	1.0	0.280
MM3855BL1RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.430	4.230	2.500	2.900	0.0210		-0.0210	0.040	0.512	16.0	64.0	1.0	16.0		4.25	8.0	1.0	0.280
MM3855BL2RRE	SSON-8ForG	Permission	voltage	voltage	voltage	4.480	4.280	2.300	2.700	0.0230		-0.0230	0.050	0.512	16.0	64.0	1.0	16.0		4.25	16.0	1.0	0.530
MM3855CN1RRE	SSON-8ForG	Permission	voltage	Latch	voltage	4.250	4.150	2.600	2.600	0.0210		-0.0190	0.100	1.024	16.0	96.0	1.0	16.0		4.00	32.0	1.0	0.280	1.024	0.768	60	55
MM3855EN7RRE	SSON-8ForG	Permission	Latch	Latch	voltage	4.450	4.450	2.600	2.600	0.0360		-0.0210	0.090	1.024	16.0	2048.0	1.0	2048.0		4.00	8.0	1.0	0.280	0.064	0.032	75	60
MM3855LC1RRE	SSON-8ForG	Prohibition	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0150		-0.0150	0.040	1.024	16.0	64.0	1.0	32.0		4.25	16.0	1.0	0.280	1.024	0.032	64	59
MM3855LE1RRE	SSON-8ForG	Prohibition	Latch	Latch	voltage	4.500	4.500	2.400	2.400	0.0100		-0.0100	0.025	1.024	16.0	64.0	4.0	32.0		8.00	16.0	8.0	0.250	1.024	0.032	78	63