ACEDW01 Datasheet, PDF (1/19 Pages) ACE Technology Co., LTD. – One Cell Lithium-ion/Polymer Battery Protection IC

ACEDW01
One Cell Lithium-ion/Polymer Battery Protection IC
Description
This protection IC was developed for use with lithium-ion/lithium polymer 1-cell serial batteries.
It detects overcharge, overdischarge, discharge overcurrent and other abnormalities, and functions to
protect the battery by turning off the external MOSFET.
The IC also has a built-in timer circuit (for detection delay times), so fewer external parts can be used in
protection circuit configuration.
Features
1. High-accuracy voltage detection circuit
 Overcharge detection voltage 4.200 to 4.400V Accuracy: ±50Mv
 Overcharge release voltage 3.900 to 4.400V Accuracy: ±50mV
 Overdischarge detection voltage 2.30 to 3.00V Accuracy: ±100mV
 Overdischarge release voltage 2.30 to 3.40V Accuracy: ±100mV
 Discharge overcurrent detection voltage 150mV Accuracy: ±100mV
 Short-circuiting detection voltage 1.35V Accuracy: ±100mV
2. Delay times are generated by an internal circuit (external capacitors are unnecessary).
 Overcharge delay time 100ms typ.
 Overdischarge delay time 50ms typ.
 Discharge overcurrent delay time 10ms typ.
 Charge overcurrent detection voltage 10ms typ.
 Short circuit delay time 5μs typ.
3. Power-down function“Yes”/ No”are selectable (See Model List).
4. Auto overdischarge recovery function “Yes”/ “No” are selectable (See Model List).
5. Low current consumption
 Operation mode 3.0μA typ., 6.0μA max. (VCC=3.9V)
 Power-down mode 0.1μA max. (VCC=2.0V)
 Auto overdischarge mode 2.0μA max. (VCC=2.0V)
6. 0 V battery charge function “available” / “unavailable” are selectable (See Model List).
7. operation temperature range -40℃~+85℃
VER 1.2 1