MM3220中文资料Protection for Lithium-Ion Batteries数据手册MinebeaMitsumi规格书

描述 Description

MM3220 series are 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, short, charging, and overcurrent(optional) of the rechargeable one-cell 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.

特性 Features

1) Range and accuracy of detection / release voltage
• Overcharge release voltage 3.9V to 4.5V, 50mV steps Accuracy±30mV
• Overdischarge release voltage 2.0V to 3.5V, 50mV steps Accuracy±100mV
• Discharging overcurrent detection voltage 2 *1 +50mV to +700mV, 50mV steps Accuracy TYP±20%
• Short detection voltage 0.9V fixed Accuracy±100mV Accuracy±300mV *2
• Overcharge detection delay time Selection from 0.25s, 1.0s, 1.2s, 4.5s
• Discharging overcurrent detection delay time 1 Selection from 8ms, 12ms, 16ms, 20ms, 48ms
• Charging overcurrent detection delay time Selection from 4ms, 6ms, 8ms, 16ms
• Normal mode Typ. 4.0µA, Max. 8.0µA
• Stand-by mode Max. 0.1µA

*1 Optional function
*2 When the discharging overcurrent detection voltage 2 function having