BQ2014H
Features
- Accurate measurement of available capacity in Ni Cd or Ni MH batteries
- Low-cost battery management so- lution for pack integration
- As little as
1 2 square inch of
PCB for plete circuit
- Low operating current (120µA typical)
- Less than 100n A of data retention current
- High-speed (5kb/s) single-wire munication interface (HDQ bus) for critical battery parameters
- munication with an external charge controller such as the bq2004
- Direct drive of remaining capacity LEDs
- Automatic rate and temperature pensation of measurements
- 16-pin narrow SOIC
General Description
The bq2014H Ni Cd/Ni MH Gas Gauge IC is intended for batterypack or in-system installation to maintain an accurate record of available battery capacity. 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. pensations for battery temperature, self-discharge, and...
