BQ2014H Datasheet Low-cost Nicd/nimh Gas Gauge

Manufacturer: Benchmarq

Overview: bq2014H Low-Cost NiCd/NiMH Gas Gauge IC.

Datasheet Details

Part number	BQ2014H
Manufacturer	Benchmarq
File Size	869.99 KB
Description	Low-Cost NiCd/NiMH Gas Gauge
Datasheet	BQ2014H-Benchmarq.pdf

General Description

The bq2014H NiCd/NiMH 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.

Compensations for battery temperature, self-discharge, and rate of discharge are applied to the charge counter to provide available capacity information across a wide range of operating conditions.

Key Features

Accurate measurement of available capacity in NiCd or NiMH batteries.
Low-cost battery management so- lution for pack integration - As little as 1 2 square inch of PCB for complete circuit - Low operating current (120µA typical) - Less than 100nA of data retention current.
High-speed (5kb/s) single-wire communication interface (HDQ bus) for critical battery parameters.
Communication with an external charge controller such as the bq2004.

BQ2014H Distributor

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