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BQ26221 PDF预览

BQ26221

更新时间： 2024-01-12 09:23:01
品牌 Logo 应用领域
德州仪器 - TI 计数器电池监控监视器
页数 文件大小 规格书
20页 281K
描述
HIGH PERFORMANCE BATTERY MONITOR IC WITH COUOMB COUNTER, VOLTAGE AND, TEMPERATURE MEASUREMENT

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BQ26221 技术参数

是否Rohs认证：符合生命周期：Obsolete
零件包装代码：SOIC包装说明：TSSOP-8
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.1
Is Samacsys：N可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.4 mm
湿度敏感等级：2信道数量：1
功能数量：1端子数量：8
最高工作温度：70 °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：TSSOP8,.25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：2.8/4.5 V认证状态：Not Qualified
座面最大高度：1.2 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.037 mA最大供电电压 (Vsup)：4.5 V
最小供电电压 (Vsup)：2.8 V标称供电电压 (Vsup)：3.6 V
表面贴装：YES温度等级：OTHER
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

BQ26221 数据手册

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SLUS607 − MAY 2004  
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FEATURES  
DESCRIPTION  
D
D
Communicates Directly With the Integrated  
HDQ Engine in TI OMAPProcessor  
Multifunction Monitoring Integrated Circuit  
Designed to Work With an Intelligent Host  
Controller :  
− Provides State of Charge Information for  
Rechargeable Batteries  
The bq26221 is an advanced battery monitoring  
device designed to accurately measure the  
charge and discharge currents in rechargeable  
battery packs. Intended for pack integration, the  
bq26221 contains all the necessary functions to  
form the basis of a comprehensive battery  
capacity management system in portable  
applications such as cellular phones, PDAs, or  
other portable products.  
− Provides Accurate Battery Voltage and  
Temperature Measurement  
D
D
High Accuracy Coulometric Charge and  
Discharge Current Integration With  
Automatic Offset Compensation  
The bq26221 works with the host controller in the  
portable system to implement the battery  
management system. The host controller is  
responsible for interpreting the bq26221 data and  
communicating meaningful battery data to the  
end-user or power management system.  
11-Bit Analog-to-Digital Converter Reports  
Battery Voltage With Gain and Offset  
Correction  
D
D
D
Differential Current Sense  
This device provides 64 bytes of general-purpose  
flash memory, 8 bytes of ID ROM and 32 bytes of  
flash-backed RAM for data storage. The  
nonvolatile memory can maintain formatted  
battery monitor information, identification codes,  
warranty information, or other critical battery  
parameters during periods when the battery is  
temporarily shorted or deeply discharged.  
32 Bytes of General Purpose RAM  
96 Bytes of Flash (Including 32 Bytes of  
Shadow Flash)  
D
8 Bytes of ID ROM  
D
Internal Temperature Sensor Eliminates the  
Need for an External Thermistor  
D
D
Programmable Digital Input/Output Port  
High-Accuracy Internal Timebase Eliminates  
External Crystal Oscillator  
D
Low Power Consumption:  
− Operating : 30 µA  
− Sleep: 1 µA  
PW PACKAGE  
(TOP VIEW)  
− Hibernate: 600 nA  
D
D
Single-Wire HDQ Serial Interface  
Packaging: 8-LEAD TSSOP  
1
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8
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RBI  
VCC  
VSS  
HDQ  
GPIO  
SRP  
SRN  
BAT  
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.  
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Copyright 2004, Texas Instruments Incorporated  
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BQ26221 替代型号

型号 品牌 替代类型 描述 数据表
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