BQ2012
Features
- Conservative and repeatable measurement of available charge in rechargeable batteries
- Charge control output
- Designed for battery pack integration
- 120µA typical standby current
(self-discharge estimation mode)
- Small size enables imple- mentations in as little as
1 2 square inch of PCB
- Integrate within a system or as a stand-alone device
- Display capacity via single- wire serial munication port or direct drive of LEDs
- Measurements pensated for current and temperature
- Self-discharge pensation using internal temperature sensor
- 16-pin narrow SOIC
General Description
The bq2012 Gas Gauge IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery charge. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery.
Self-discharge of Ni MH and Ni Cd batteries is estimated based on...
