FS326
One Cell Lithium-ion/Polymer Battery Protection IC
General Description
Ordering Information
FS326 x
FS326 is a series of lithium-ion and lithium-polymer
rechargeable battery protection ICs with high accurate
voltage detection and delay circuits.
Serial code from A to G *
*: Refer to the product name list on next page.
These ICs are suitable for protection of single cell
lithium-ion or lithium polymer battery packs from over
charge, over discharge and over current.
FS326 x-P (P stands for Pb-free)
Serial code from A to H *
*: Refer to the product name list on next page.
Features
Low supply current
Normal Operation : 3.0μA typ. @VDD=3.9V
Power-down mode : 0.1μA max. @VDD=2.0V
Applications
Overcharge detection voltage
﹝VOCU﹞
4.2V~4.4V, Accuracy of ±25mV
Protection IC for One-Cell Lithium-Ion /
Lithium-Polymer Battery Pack
Overcharge release voltage
3.8V~4.2V, Accuracy of ±50mV
﹝VOCR﹞
Overdischarge detection voltage
2.2V~2.9V, Accuracy of ±50*mV
﹝VODL﹞
Overdischarge release voltage
2.4V~3.2V, Accuracy of ±50*mV
﹝VODR﹞
Over current detection voltage
﹝VOI1﹞
0.05V~0.2V, Accuracy of ±30mV
Short circuit detection voltage
Fixed at 1.35V
﹝VOI2﹞
Delay times are generated by an internal
circuit. (External capacitors are unnecessary.)
Charger detection voltage
-0.7V
Reset resistance for Over current protection
>500kΩ
Wide supply voltage range
Small package
1.8 ~ 9.0V
SOT-23-6
*: ±50mV for F version, others are ±80mV.
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
1/18
FS326-DS-17_EN
Rev. 1.7
Jul, 2006
