MM3220数据手册集成电路（IC）的电池管理规格书PDF

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 detection voltage 4.0V to 4.5V, 5mV steps Accuracy±20mV
• Overcharge release voltage 3.9V to 4.5V, 50mV steps Accuracy±30mV
• Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±35mV
• Overdischarge release voltage 2.0V to 3.5V, 50mV steps Accuracy±100mV
• Discharging overcurrent detection voltage 1 +50mV to +300mV, 5mV steps Accuracy±10mV
• Discharging overcurrent detection voltage 2 *1 +50mV to +700mV, 50mV steps Accuracy TYP±20%
• Charging overcurrent detection voltage *1 -300mV to -50mV, 5mV steps Accuracy±20mV
• Short detection voltage 0.9V fixed Accuracy±100mV Accuracy±300mV *2

2) Range of detection delay time
• Overcharge detection delay time Selection from 0.25s, 1.0s, 1.2s, 4.5s
• Overdischarge detection delay time Selection from 20ms, 24ms, 96ms, 125ms, 144ms
• Discharging overcurrent detection delay time 1 Selection from 8ms, 12ms, 16ms, 20ms, 48ms
• Discharging overcurrent detection delay time 2 Selection from 0.5ms, 1ms , 1.5ms , 2ms , 4ms
• Charging overcurrent detection delay time Selection from 4ms, 6ms, 8ms, 16ms
• Short detection delay time 400µs fi xed

3) Low current consumption
• 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