MM3856 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

MM3856 series are Li-ion battery protection IC and detect charge current / discharge current with high precision by current sensing
resistor (Rsns). MM3856 have two step discharge overcurrent detection. And system is protected appropriately in the next 2 state, Normal discharge mode and large current discharge mode.

For one-cell
(1) Range and accuracy of detection/release voltage
　● Overcharge detection voltage 4.1V to 5.0V, 5mV steps Accuracy±20mV
　● Overdischarge detection voltage 2.1V to 3.0V, 50mV steps Accuracy±35mV
　● Discharging overcurrent detection voltage1 15mV to +100mV, 1mV steps ※1
　● Discharging overcurrent detection voltage2 30mV to +100mV, 1mV steps ※1
　● Charging overcurrent detection voltage -100mV to -15mV, 1mV steps ※1
　● Short detection voltage1 50mV to 200mV, 50mV steps Accuracy±20mV (Discharging overcurrent detection voltage 2 disable.)
Accuracy±25mV (Discharging overcurrent detection voltage 2 enable.)
　● 0V battery charge inhibition battery voltage 1.3 to 1.8V, 0.1V steps Accuracy±0.1V
0.9V fixed Accuracy±0.3V

(2) 0V battery charge function Selectable "Permission" or "inhibition"

(3) Current consumption
　● Normal mode 2.5uA typ.4.0uA max.
　● Standby mode 0.1uA max. (Overdischarge latch function enable.)
0.6uA max. (Overdischarge latch function disable.)

*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]
MM3856AF1RRE	SSON-6J	Prohibition	voltage	voltage	voltage	4.475	4.275	2.800	3.000	0.0170	0.0300	-0.0170	0.055	1.024	16.0	256.0	1.0	128.0	16.0	1.00	64.0	1.0	0.300
MM3856AJ2YLE	SON-6C	Permission	voltage	voltage	voltage	4.525	4.350	2.100	2.300	0.0205	0.0295	-0.0335	0.070	1.024	1.0	64.0	1.0	4096.0	16.0	8.00	16.0	4.0	0.280
MM3856AM1YLE	SON-6C	Prohibition	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0210	0.080	1.024	1.0	64.0	1.0	224.0		8.00	16.0	1.0	0.250
MM3856AM1RR4	SSON-6UorV	Prohibition	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0210	0.080	1.024	1.0	64.0	1.0	224.0		8.00	16.0	1.0	0.250
MM3856AM2YLE	SON-6C	Prohibition	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0240	0.100	1.024	1.0	64.0	1.0	448.0		8.00	16.0	1.0	0.250
MM3856AM2RR4	SSON-6UorV	Prohibition	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0240	0.100	1.024	1.0	64.0	1.0	448.0		8.00	16.0	1.0	0.250
MM3856AM4YLE	SON-6C	Prohibition	voltage	voltage	voltage	4.220	4.165	2.500	2.900	0.0225		-0.0225	0.045	1.024	1.0	20.0	1.0	32.0		8.00	16.0	1.0	0.250
MM3856AN2YLE	SON-6C	Permission	voltage	voltage	voltage	4.520	4.320	2.300	2.700	0.0360		-0.0300	0.100	1.024	1.0	64.0	1.0	32.0		8.00	16.0	1.0	0.400
MM3856AN3YLE	SON-6C	Permission	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0270	0.080	1.024	1.0	64.0	1.0	224.0		8.00	16.0	1.0	0.250
MM3856AN3RLE	SSON-6J	Permission	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0270	0.080	1.024	1.0	64.0	1.0	224.0		8.00	16.0	1.0	0.250
MM3856AN4YLE	SON-6C	Permission	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0330	0.100	1.024	1.0	64.0	1.0	448.0		8.00	16.0	1.0	0.250
MM3856AN4RLE	SSON-6J	Permission	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0330	0.100	1.024	1.0	64.0	1.0	448.0		8.00	16.0	1.0	0.250
MM3856AN5YLE	SON-6C	Permission	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0210	0.080	1.024	1.0	64.0	1.0	224.0		8.00	16.0	1.0	0.250
MM3856AN6YLE	SON-6C	Permission	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0240	0.100	1.024	1.0	64.0	1.0	448.0		8.00	16.0	1.0	0.250
MM3856AN7YRE	SON-6C	Permission	voltage	voltage	voltage	4.475	4.275	2.600	3.000	0.0210		-0.0210	0.050	1.024	1.0	64.0	1.0	16.0		8.00	8.0	1.0	0.280
MM3856AN8YRE	SON-6C	Permission	voltage	voltage	voltage	4.520	4.320	2.300	2.700	0.0210		-0.0210	0.070	1.024	1.0	64.0	1.0	32.0		8.00	16.0	1.0	0.530
MM3856AN9YLE	SON-6C	Permission	voltage	voltage	voltage	4.520	4.320	2.300	2.700	0.0225		-0.0270	0.110	1.024	1.0	40.0	1.0	64.0		8.00	16.0	1.0	0.280
MM3856EF1RRE	SSON-6J	Prohibition	Latch	Latch	voltage	4.275	4.275	2.350	2.350	0.0300	0.0450	-0.0200	0.150	1.024	16.0	20.0	1.0	5120.0	12.0	1.00	16.0	1.0	0.250
MM3856EN1YLE	SON-6C	Permission	Latch	Latch	voltage	4.230	4.230	2.500	2.500	0.0235		-0.0225	0.075	1.024	1.0	20.0	1.0	32.0		8.00	16.0	1.0	0.250
MM3856EN2RRE	SSON-6J	Permission	Latch	Latch	voltage	4.275	4.275	2.300	2.300	0.0175		-0.0150	0.084	1.024	16.0	96.0	1.0	512.0		1.00	10.0	1.0	0.300
MM3856EN3RRE	SSON-6J	Permission	Latch	Latch	voltage	4.275	4.275	2.200	2.200	0.0175		-0.0150	0.084	1.024	32.0	256.0	1.0	1280.0		1.00	20.0	1.0	0.530
MM3856JF1RRE	SSON-6J	Prohibition	Latch	voltage	voltage	4.250	4.250	2.300	2.500	0.0320	0.0420	-0.0200	0.070	1.024	16.0	128.0	4.0	128.0	8.0	4.00	48.0	4.0	0.250
MM3856JF2RRE	SSON-6J	Prohibition	Latch	voltage	voltage	4.300	4.300	2.200	2.400	0.0380	0.0480	-0.0240	0.075	2.048	16.0	256.0	4.0	256.0	16.0	4.00	64.0	4.0	0.560
MM3856KF5RRE	SSON-6J	Prohibition	Latch	Latch	voltage	4.500	4.500	2.400	2.400	0.0360		-0.0280	0.090	1.024	16.0	2048.0	1.0	2048.0		4.00	16.0	1.0	0.280
MM3856MM1YLE	SON-6C	Prohibition	voltage	voltage	voltage	4.475	4.275	2.500	2.900	0.0210		-0.0210	0.080	1.024	1.0	64.0	1.0	16.0		8.00	16.0	1.0	0.250
MM3856MM2YLE	SON-6C	Prohibition	voltage	voltage	voltage	4.520	4.320	2.100	2.300	0.0210		-0.0240	0.100	1.024	1.0	64.0	1.0	32.0		8.00	16.0	1.0	0.250