Title :
A micropower safety IC for rechargeable lithium batteries
Author :
Stockstad, Troy ; Petty, Tom ; Yee, Renwin
Author_Institution :
Amplifier & Power Design Group, Motorola Inc., Tempe, AZ, USA
Abstract :
A rechargeable lithium battery safety IC designed for monitoring cell voltage and current in the battery is presented. The circuitry is capable of protecting batteries of one to four series connected cells via a programmable circuit architecture with a cell voltage limit accuracy of +/-1%. The circuitry has an average current drain of 25 μA. The Li safety IC with integrated series FETs has an area of 18.4 mm2
Keywords :
application specific integrated circuits; monitoring; power integrated circuits; safety; secondary cells; 25 muA; average current drain; cell voltage limit accuracy; cell voltage monitoring; current monitoring; integrated series FETs; micropower safety IC; programmable circuit architecture; rechargeable lithium batteries; series connected cells; Batteries; Circuits; Current measurement; Degradation; FETs; Lithium; Monitoring; Protection; Safety; Voltage control;
Conference_Titel :
Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3117-6
DOI :
10.1109/CICC.1996.510527
