BQ2084DBTR-V143 ,SBS v1.1 Compliant Gas Gauge for use with the BQ29312A 38-TSSOP -20 to 85FEATURES DESCRIPTION• Provides Accurate Measurement of AvailableThe bq2084-V143 SBS-compliant gas g ..
BQ2084DBT-V143 ,SBS v1.1 Compliant Gas Gauge for use with the BQ29312A 38-TSSOP -20 to 85ELECTRICAL CHARACTERISTICSV = 3 V to 3.6 V, T = –20°C to 85°C unless otherwise notedDD APARAMETER T ..
BQ2084DBT-V143G4 ,SBS v1.1 Compliant Gas Gauge for use with the BQ29312A 38-TSSOP -20 to 85SLUS732–SEPTEMBER 2006These devices have limited built-in ESD protection. The leads should be short ..
BQ2084DBT-V150 ,SBS v1.1 Compliant Gas Gauge with LED Delay 38-TSSOP -20 to 85FEATURES DESCRIPTION• Provides Accurate Measurement of AvailableThe bq2084-V150 SBS-compliant gas g ..
BQ2084DBT-V150 ,SBS v1.1 Compliant Gas Gauge with LED Delay 38-TSSOP -20 to 85ELECTRICAL CHARACTERISTICSV = 3 V to 3.6 V, T = –20°C to 85°C unless otherwise notedDD APARAMETER T ..
BQ2085DBT ,SBS 1.1 Compliant Gas Gauge With Integrated Oscillator For Use With The bq29311 bq2085SLUS541 – OCTOBER 2002DESCRIPTION (CONTINUED)The bq2085 uses an integrating converter with T ..
BUK436-800A ,PowerMOS transistor
BUK438-800A ,PowerMOS transistor
BUK444-800A ,PowerMOS transistor
BUK445-200B ,PowerMOS transistor
BUK445-60A ,Power MOS Transistor
BUK445-60B , POWERMOS TRANSISTOR
BQ2084DBTR-V143-BQ2084DBT-V143-BQ2084DBT-V143G4
SBS Compliant Gas Gauge For Use With The bq29312
RTT DBT
www.ti.com
FEATURES DESCRIPTION
APPLICATIONS
bq2084-V143
SLUS732–SEPTEMBER 2006
SBS v1.1-COMPLIANT GAS GAUGE FOR
USE WITH THE bq29312 Provides Accurate Measurementof Available The bq2084-V143 SBS-compliant gas gauge IC for
Chargein Li-Ion and Li-Polymer Batteries battery packor in-system installation maintains an
accurate record of available charge in Li-ion or•
Supports the Smart Battery SpecificationLi-polymer batteries. The bq2084-V143 monitors
(SBS) V1.1 capacity and other critical parametersof the battery•
Integrated Time Base Removes Need for pack and reports the informationto the system host
External Crystal with Optional Crystal input controller overa serial communication bus.Itis•
Works With theTI bq29312 Analog Front-End designedto work with the bq29312 AFE protectionto maximize functionality and safety and minimize
(AFE) ProtectionICto Provide Complete Packcomponent count and costin smart battery circuits.
Electronics for 7.2-V, 10.8-Vor 14.4-V BatteryUsing information from the bq2084-V143, the host
Packs With Few External Components controller can manage remaining battery powerto•
Based ona Powerful Low-Power RISC CPU extend the system run timeas muchas possible.
Core With High-Performance PeripheralsThe bq2084-V143 usesan integrating converter with•
Integrated Flash Memory Eliminates the Need continuous sampling for the measurementof battery
for External Configuration EEPROM charge and discharge currents. Optimized for•
Uses 16-Bit Delta Sigma Converter for coulomb counting in portable applications, the
Accurate Voltage and Temperature self-calibrating integrating converter hasa resolution
Measurements better than 0.65-nVh and an offset measurement
errorof less than 1-µV (typical). For voltage and•
Measures Charge Flow Usinga High temperature reporting, the bq2084-V143 usesa
Resolution 16-Bit Integrating Converter 16-bit A-to-D converter. With the bq29312, the
– Better Than 0.65-nVhof Resolution onboard ADC also monitors the pack and individual
Self-Calibrating cell voltages ina battery pack and allows the
bq2084-V143 to generate the control signals
– Offset Error Less Than 1-µV necessaryto implement the cell balancing and the•
Programmable Cell Modeling for Maximum required safety protection for Li-ion and Li-polymer
Battery Fuel Gauge Accuracy battery chemistries.
Drives3-, 4-,or 5-Segment LED Display for The bq2084-V143 supports the Smart Battery Data
Remaining Capacity Indication (SBData) commands and charge-control functions.It•
Availableina 38-Pin TSSOP (DBT) Package communicates data using the System Management
Bus (SMBus) 2-wire protocol. The data available
include the battery's remaining capacity,
temperature, voltage, current, and remaining•
Notebook PCs run-time predictions.•
Medical and Test EquipmentThe bq2084-V143 provides LED drivers anda•
Portable Instrumentationpushbutton inputto depict remaining battery capacity
from fullto emptyin 20%, 25%,or 33% increments
witha 3-, 4-,or 5-segment display.
