MM3645中文资料Protection for Lithium-Ion Batteries数据手册MinebeaMitsumi规格书

描述 Description

MM3645 series are protection ICs for Lithium-ion or Lithium-polymer secondary battery using high voltage CMOS process. They protect the battery pack/system from overcharge, overdischarge, and overcurrent, etc. by controlling FET SW. They realize overcurrent detection with high accuracy and improved temperature dependence by using an external chip resistor. In addition, by using charging off mode, it reduces the off current of system and prevents Lithium-ion battery from discharging when the system is off.

特性 Features

1. Range and accuracy of detection / release voltage
• Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±35mV
• Charging overcurrent detection voltage -300mV to -20mV, 1mV steps Accuracy±15%
• Overcharge detection delay time Selection from 0.25s, 0.5s, 1.0s
• Discharging overcurrent detection delay time Selection from 8ms, 12ms, 16ms, 20ms, 48ms
• Short detection delay time 250µs standard
• Normal mode Typ. 3.0µA, Max. 5.5µA
• Stand-by mode Max. 0.1µA