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BQ2084DBT-V133G4 PDF预览

BQ2084DBT-V133G4

更新时间： 2024-10-28 14:37:39
品牌 Logo 应用领域
德州仪器 - TI 仪表光电二极管
页数 文件大小 规格书
66页 733K
描述
SBS V1.1 Compliant Gas Gauge For Use With The bq29312 38-TSSOP -20 to 85

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BQ2084DBT-V133G4 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP, TSSOP38,.25,20针数：38
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.83
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G38JESD-609代码：e4
长度：9.7 mm湿度敏感等级：2
信道数量：1功能数量：1
端子数量：38最高工作温度：85 °C
最低工作温度：-20 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP38,.25,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：3.3 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Power Management Circuits最大供电电压 (Vsup)：3.6 V
最小供电电压 (Vsup)：3 V标称供电电压 (Vsup)：3.3 V
表面贴装：YES温度等级：OTHER
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

BQ2084DBT-V133G4 数据手册

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bq2084-V133  
www.ti.com  
SLUS640B –JUNE 2005–REVISED FEBRUARY 2010  
SBS v1.1-COMPLIANT GAS GAUGE FOR  
USE WITH THE bq29312  
Check for Samples: bq2084-V133  
1
FEATURES  
DESCRIPTION  
•
•
•
Provides Accurate Measurement of Available  
Charge in Li-Ion and Li-Polymer Batteries  
The bq2084-V133 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 bq2084-V133 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 bq29312 AFE protection IC  
to maximize functionality and safety and minimize  
component count and cost in smart battery circuits.  
Using information from the bq2084-V133, the host  
controller can manage remaining battery power to  
extend the system run time as much as possible.  
Supports the Smart Battery Specification  
(SBS) V1.1  
Integrated Time Base Eliminates Need for  
External Crystal  
–
Optional Crystal input  
•
Works With the TI bq29312 Analog Front-End  
(AFE) Protection IC to Provide Complete Pack  
Electronics for 7.2-V, 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  
The bq2084-V133 uses an integrating converter with  
continuous sampling for the measurement of battery  
charge and discharge currents. Optimized for  
coulomb counting in portable applications, the  
self-calibrating integrating converter has a resolution  
better than 0.65-nVh and an offset measurement  
error of less than 1-µV (typical). For voltage and  
temperature reporting, the bq2084-V133 uses a 16-bit  
A-to-D converter. With the bq29312, the onboard  
ADC also monitors the pack and individual cell  
Integrated Flash Memory Eliminates the Need  
for External Configuration EEPROM  
Uses 16-Bit Delta Sigma Converter for  
Accurate Voltage and Temperature  
Measurements  
•
Measures Charge Flow Using a High  
Resolution 16-Bit Integrating Converter  
–
–
–
Better Than 0.65-nVh of Resolution  
Self-Calibrating  
voltages in  
a
battery pack and allows the  
bq2084-V133 to generate the control signals  
necessary to implement the cell balancing and the  
required safety protection for Li-ion and Li-polymer  
battery chemistries.  
Offset Error Less Than 1-µV  
•
•
•
Programmable Cell Modeling for Maximum  
Battery Fuel Gauge Accuracy  
Drives 3-, 4-, or 5-Segment LED Display for  
Remaining Capacity Indication  
The bq2084-V133 supports the Smart Battery Data  
(SBData) commands and charge-control functions. It  
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 run-time predictions.  
Available in a 38-Pin TSSOP (DBT) Package  
APPLICATIONS  
•
•
•
Notebook PCs  
Medical and Test Equipment  
Portable Instrumentation  
The bq2084-V133 provides LED drivers and  
a
pushbutton input to indicate remaining battery  
capacity from full to empty in 20%, 25%, or 33%  
increments with a 3-, 4-, or 5-segment display.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2010, Texas Instruments Incorporated  
1234567...66

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