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Part Name

BQ2085 Datasheet

Part Name Description Manufacturer
BQ2085 SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311 Texas-Instruments
Texas Instruments Texas-Instruments
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DESCRIPTION
The bq2085 SBS-compliant gas gauge IC for battery pack or in-system installation maintains an accurate record of available charge in Li-ion or Li-polymer batteries.

FEATURES
● Provides Accurate Measurement of Available
   Charge in Li-Ion and Li-Polymer Batteries
● Supports the Smart Battery Specification
   (SBS) V1.1
● Integrated Time Base Removes Need for
   External Crystal
● Works With the TI bq29311 Analog Front End
   (AFE) Protection IC to Provide Complete Pack
   Electronics for 10.8-V or 14.4-V Battery Packs
   With Few External Components
● Based on a Powerful Low-Power RISC CPU
   Core With High-Performance Peripherals
● Integrated FLASH Memory Eliminates the
   Need for External Configuration EEPROM
● Measures Charge Flow Using a High
   Resolution 16-Bit Integrating Converter
   – Better Than 3-nVh of Resolution
   – Self-Calibrating
   – Offset Error Less Than 1-µV
● Uses 16-Bit Delta Sigma Converter for
   Accurate Voltage and Temperature
   Measurements
● Programmable Cell Modeling for Maximum
   Battery Fuel Gauge Accuracy
● Drives 3-, 4-, or 5-Segment LED Display for
   Remaining Capacity Indication
● 38-Pin TSSOP (DBT)

APPLICATIONS
● Notebook PCs
● Medical and Test Equipment
● Portable Instrumentation

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