EC9523 Datasheet, PDF (1/10 Pages) E-CMOS Corporation – Single Cell Lithium-ion/Lithium-polymer Battery Protection IC

Single Cell Lithium-ion/Lithium-polymer
Battery Protection IC
EC9523
General Description
The EC9523 Li-ion/Li-polymer battery protection IC has
high accuracy voltage detector and delay time circuit in
side.0 V charge function and self-recovery function
are available. The operating quiescent current is
very low. It is designed to protect 1-cell lithium-ion /
lithium polymer rechargeable batteries from damage
or degrading life time due to the overcharge,
over discharge and charge/discharge over current etc.
Features
 Overcharge detection voltage 4.25 V to 4.35V,
Accuracy ±50 mV
 Overcharge release voltage 4.05 V to 4.15V,
Accuracy ±50 mV
 Overdischarge detection voltage 2.3 to 2.5V,
Accuracy 100 mV
 Overdischarge release voltage 2.9 to 3.1V,
Accuracy ± 100 mV
 Ultra-low operating current 2.5μA@Vcc=3.9V
 Self-recovery function available
 Overcurrent protection and load short protection
 0V charge function available
 Over charge current protection available
Applications
 Single cell Lithium-ion/Lithium polymer
rechargeable battery pack.
Pin Configuration & Pin Function
Table 1: Pin definition and description for SOT23-6
No Pin
Function
1
OD Connection of charge MOSFET gate
2
CS Pin for voltage and current detection
3
OC Connection of discharge MOSFET gate
4 NC No connection
5 VCC Power supply
6 GND Ground
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 10
3J15N Rev. P001