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BQ26501 PDF预览

BQ26501

更新时间: 2024-02-18 21:45:24
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
27页 337K
描述
SINGLE CELL LIION AND LIPOL BATTERY GAS GAUGE IC FOR HANDHELD APPLICATIONS

BQ26501 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, TSSOP8,.25
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:5.66
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G8JESD-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:2.6/4.5 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):0.09 mA
最大供电电压 (Vsup):4.5 V最小供电电压 (Vsup):2.6 V
标称供电电压 (Vsup):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:0.65 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 mmBase Number Matches:1

BQ26501 数据手册

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SLUS586B − OCTOBER 2003 − REVISED MARCH 2004  
ꢙꢑꢝ ꢉꢌꢗꢞ  
t
FEATURES  
APPLICATIONS  
D
Reports Accurate State-of-Charge in Li-Ion  
and Li-Pol Cells, No System Processor  
Calculations Needed  
D
D
D
D
D
D
PDAs  
Smart Phones  
MP3 Players  
D
D
D
Communicates Directly With the Integrated  
Digital Cameras  
HDQ Engine in TI OMAPt Processors  
Internet Appliances  
Handheld Devices  
Reports Cell Temperature and Voltage  
High-Accuracy Coulometric Charge and  
Discharge Current Integration with  
Automatic Offset Cancellation  
DESCRIPTION  
D
D
D
D
Requires No Offset Calibration  
Programmable Input/Output Port  
The bq26501, the first in the bqJUNIORt family  
of advanced gas gauge device for handhald  
applications, is a highly accurate standalone  
single-cell Li-Ion and Li-Pol battery capacity  
monitoring and reporting device targeted at space  
limited portable applications. The device monitors  
a voltage drop across a small current sense  
resistor connected in series with the battery to  
determine charge and discharge activity of the  
battery. Compensations for battery temperature,  
self-discharge, and rate of discharge are applied  
to the charge counter to provide available capacity  
across a wide range of operating conditions.  
Battery capacity is automatically recalibrated, or  
learned, in the course of a discharge cycle from full  
to empty. Internal registers include available  
capacity, cell temperature and voltage,  
state-of-charge, and status and control registers.  
Internal Time-Base Eliminates External  
Crystal Oscillator  
Four Automatic Low-Power Operating Modes  
− Active: < 100 µA  
− Sleep: < 2.5 µA  
− Ship: < 1.7 µA  
− Hibernate: < 1.5 µA  
D
Small 8-Pin TSSOP Package  
SIMPLIFIED APPLICATION  
PACK+  
Li-Ion  
or  
Li-Pol  
+
bq26501  
1
2
3
4
RBI GPIO  
VCC SRP  
VSS SRN  
HDQ BAT  
8
7
6
5
The bq26501 can operate directly from single-cell  
Li-Ion and Li-Pol batteries and communicates to  
the system over a simple one-wire bi-directional  
serial interface. The 5-kbits/s HDQ bus interface  
reduces communication overhead in the external  
microcontroller.  
HDQ  
Protection  
Controller  
PACK−  
Battery Pack  
UDG−03038  
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.  
ꢕꢪ  
Copyright 2003−2004, Texas Instruments Incorporated  
ꢦ ꢪ ꢧ ꢦꢟ ꢠꢳ ꢢꢡ ꢥ ꢬꢬ ꢫꢥ ꢣ ꢥ ꢤ ꢪ ꢦ ꢪ ꢣ ꢧ ꢮ  
1
www.ti.com  

BQ26501 替代型号

型号 品牌 替代类型 描述 数据表
BQ27010 TI

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