BQ2014 Overview
The bq2014 Gas Gauge IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery charge. The IC monitors the 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 NiMH and NiCd batteries is estimated based on an internal timer and...
BQ2014 Key Features
- Conservative and repeatable measurement of available charge in rechargeable batteries
- Charge control output operates an external charge controller such as the bq2004 Fast Charge IC
- Designed for battery pack integration
- 120µA typical standby current
- 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
- User-selectable end-of-discharge threshold
- Battery voltage, nominal available charge, temperature, etc. available over serial port
- 16-pin narrow SOIC