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Protection for Lithium-Ion Batteries

MM3860 Series

Outline

MM3860 series are Li-ion battery protection IC and detect charge current / discharge current with high precision by current sensing
resistor (Rsns). MM3860 have two step discharge overcurrent detection. And system is protected appropriately in the next 2 state, Normal discharge mode and large current discharge mode.

Product Series

For one-cell

Features

(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 6mV to +50mV, 1mV steps Accuracy±1mV
 ● Discharging overcurrent detection voltage2 10mV to +100mV, 1mV steps Accuracy±2mV
 ● Charging overcurrent detection voltage -50mV to -6mV, 1mV steps Accuracy±1mV
 ● Short detection voltage1 30mV to 200mV, 10mV steps Accuracy±5mV
 ● 0V battery charge inhibition battery voltage 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.)

Specifications

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 time 1
[ms]
Discharging overcurrent detection
delay time 2
[ms]
Discharging overcurrent release
delay time
[ms]
Charging
overcurrent
detection
delay time
[ms]
Charging overcurrent release delay time
[ms]
Short detection
delay time
[ms]

Package

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Associated Data

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