BQ2084DBTR-V143

Product Summary

The BQ2084DBTR-V143 is a 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. The BQ2084DBTR-V143 monitors capacity and other critical parameters of the battery pack and reports the information to the system host controller over a serial communication bus. It is designed to work with the bq29311 analog front-end (AFE) protection IC to maximize functionality and safety and minimize component count and cost in smart battery circuits. Using information from the BQ2084DBTR-V143, the host controller can manage remaining battery power to extend the system run time as much as possible. The applications of the BQ2084DBTR-V143 are (1)Notebook PCs; (2)Medical and Test Equipment; (3)Portable Instrumentation.

Parametrics

BQ2084DBTR-V143 absolute maximum ratings: (1)Supply voltage range, VDD relative to VSS: -0.3 V to 6 V; (2)Open-drain I/O pins, V(IOD) relative to VSS: -0.3 V to 6 V; (3)Input voltage range to all other pins, VI relative to VSS: -0.3 V to VDD + 0.3 V; (4)ESDS Rating CDM 1.5 kV ESDS Rating: 50 V; (5)Operating free-air temperature range, TA: -20 to 85℃; (6)Storage temperature range, Tstg: -65 to 150℃.

Features

BQ2084DBTR-V143 features: (1)Provides Accurate Measurement of Available Charge in Li-Ion and Li-Polymer Batteries; (2)Supports the Smart Battery Specification (SBS) V1.1; (3)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; (4)Based on a Powerful Low-Power RISC CPU Core With High-Performance Peripherals; (5)Integrated Flash Memory Eliminates the Need for External Configuration EEPROM; (6)Measures Charge Flow Using a High Resolution 16-Bit Integrating Converter; (7)Uses 16-Bit Delta Sigma Converter for Accurate Voltage and Temperature Measurements; (8)Programmable Cell Modeling for Maximum Battery Fuel Gauge Accuracy.

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