bq2050H Datasheet Low-Cost Lithium Ion Power Gauge

Manufacturer: Benchmarq

bq2050H low-cost lithium ion power gauge by Benchmarq - Datasheet Preview

Datasheet Details

Part number	bq2050H
Manufacturer	Benchmarq
File Size	959.68 KB
Description	Low-Cost Lithium Ion Power Gauge
Download	bq2050H Download (PDF)

General Description

The bq2050H Lithium Ion Power 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.

Overview

bq2050H Low-Cost Lithium Ion Power Gauge™ IC.

Key Features

Accurate measurement of available capacity in Lithium Ion batteries.
Provides a low-cost battery management solution for pack integration - Complete circuit can fit in as little as 1 2 square inch of PCB - Low operating current (120µA typical) - Less than 100nA of data retention current.
High-speed (5kb) single-wire communication interface (HDQ bus) for critical battery parameters.
Monitors and controls charge FET in Li-Ion pack protection ci.

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