MM3723 Series

The MM3723 series integrates into 1.09mm × 0.81mm × 0.46mm WLCSP Package. It's using high voltage CMOS process for overcharge, overdischarge and overcurrent protection of the rechargeable Lithium-ion and Lithium-polymer battery. The overcharge, overdischarge, discharging overcurrent, charging overcurrent and short protection of the rechargeable one-cell Lithium-ion and Lithium-polymer battery can be detected.

For one-cell

1. Range and accuracy of detection/release voltage
●Overcharge detection voltage 3.6V to 4.6V, 5mV step Accuracy±12mV
●Overdischarge detection voltage 2.0V to 3.0V, 50mV step Accuracy±35mV
●Discharging overcurrent detection voltage 20mV to 100mV, 1mV step Accuracy±ΔV ※1
●Charging overcurrent detection voltage -100mV to -20mV, 1mV step Accuracy±ΔV ※1
●Short detection voltage 100mV to 300mV,10mV step Accuracy±8%

2. Range of detection delay time
●Overcharge detection delay time 1.0s, 1.2s, 4.0s
●Overdischarge detection delay time 20ms, 24ms, 32ms, 96ms, 128ms
●Discharging overcurrent detection delay time 8ms, 12ms, 16ms, 20ms, 256ms, 512ms
●Charging overcurrent detection delay time 4ms, 6ms, 8ms, 10ms, 12ms, 16ms, 96ms
●Short detection delay time 250µs to 400µs

3. 0V battery Charge functionSelection from "Permission" or "Prohibition"

4. Low current consumption
●Normal mode Typ. 2.5µA, Max. 4.0µA
●Stand-by mode Max. 0.1µA (Overdischarge latch function Enable)
Max. 0.6µA (Overdischarge latch function Disable)

• WLCSP-6B