The <MM3684 series> features built-in secondary protection function compliant with international standards for electronic tools, which contributes to improved safety during use.
The <MM3684 series> features the additional functions of temperature protection and multi-stage overcurrent protection. These help to achieve a low consumption current and better space efficiency that could not be achieved with existing circuit layouts, and also helps to improve safety of lithium ion batteries.

• Built-in overcharge, over-discharge and overcurrent protection functions.
• 3-stage discharge overcurrent protection
• Detection of 2 values of high and low temperatures with an external NTC to protect battery packs
• Built-in secondary protection function to drive external FET for FUSE
• Intermittent operation with temperature protection for a low consumption current
• Over-discharge detection voltage switch function (2 values can be set)

Overcharge detection voltage	1 : 3.6 to 4.5V (5mV steps) accuracy ±25mV
	2 : 3.6 to 4.5V (5mV steps) accuracy ±25mV
Over-discharge detection voltage	1 : 2.0 to 3.0V (50mV steps) accuracy ±80mV
	2 : 2.0 to 3.0V (50mV steps) accuracy ±80mV
Discharge overcurrent detection voltage	1 : 30 to 300mV (5mV steps) accuracy ±15%
	2 : 2x/4x discharge overcurrent 1 accuracy ±20%
Short circuit detection voltage	4x/8x discharge overcurrent 1 accuracy ±100mV
Charge overcurrent detection voltage	-300 to -20mV (5mV steps) accuracy ±10mV
Temperature protection detection temperature	-30℃ to 80℃ (5℃ steps, 2 values can be set)
REG terminal output voltage	1.5 to 3.0V (50mV steps) accuracy ±25mV
Package	VSOP-24A
Dimensions	7.9×7.6×1.25 (W×D×H)   (Unit : mm)