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bq2040 Datasheet Gas Gauge

Manufacturer: Benchmarq

Overview: bq2040 Gas Gauge IC With SMBus Interface.

Datasheet Details

Part number bq2040
Manufacturer Benchmarq
File Size 859.21 KB
Description Gas Gauge
Datasheet bq2040-Benchmarq.pdf

General Description

The bq2040 Gas Gauge IC With SMBus Interface is intended for battery-pack or in-system installation to maintain an accurate record of available battery charge.

The bq2040 directly supports capacity monitoring for NiCd, NiMH, and LiIon battery chemistries.

The bq2040 uses the System Management Bus v1.0 (SMBus) protocol and supports the Smart Battery Data (SBData) commands.

Key Features

  • ® Provides accurate measurement of available charge in NiCd, NiMH, and Li-Ion batteries ® Supports SBS v1.0 data set and two-wire interface ® Monitors charge FET in Li-Ion pack protection circuit ® Designed for battery pack integration - Low operating current - Complete circuit can fit on less than ¾ square inch of PCB space ® Supports SBS charge control commands for NiCd, NiMH, and Li-Ion ® Drives a four-segment LED display for remaining capacity indication ® 16-pin narrow SOIC General Descrip.

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