com
DS2784
1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
www.
maxim-ic.
com
GENERAL DESCRIPTION
The DS2784 operates from 2.
5V to 4.
6V for integration in battery packs using a single lithium-ion (Li+) or Li+ polymer cell.
Available capacity is reported in mAh and as a percentage.
Safe operation is ensured with the included Li+ protection function and SHA-1-based challenge-response authentication.
Precision measurements of
voltage, temperature, and current, along with cell characteristics and application parameters are used to estimate capacity.
The available capacity registers report a conservative estimate of the amount of charge that can be rem...