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BQ24314 PDF预览

BQ24314

更新时间： 2024-11-21 04:34:39
品牌 Logo 应用领域
德州仪器 - TI 过电流保护
页数 文件大小 规格书
25页 1045K
描述
OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC

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BQ24314 数据手册

 浏览型号BQ24314的Datasheet PDF文件第2页浏览型号BQ24314的Datasheet PDF文件第3页浏览型号BQ24314的Datasheet PDF文件第4页浏览型号BQ24314的Datasheet PDF文件第5页浏览型号BQ24314的Datasheet PDF文件第6页浏览型号BQ24314的Datasheet PDF文件第7页 
bq24314  
bq24316  
www.ti.com  
SLUS763C–JULY 2007–REVISED OCTOBER 2007  
OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND  
Li+ CHARGER FRONT-END PROTECTION IC  
1
FEATURES  
•
Available in Space-Saving Small 8 Lead 2×2  
SON and 12 Lead 4x3 SON Packages  
2
•
Provides Protection for Three Variables:  
–
–
–
Input Overvoltage, with Rapid Response in  
< 1 μs  
APPLICATIONS  
•
•
•
•
•
Mobile Phones and Smart Phones  
PDAs  
MP3 Players  
Low-Power Handheld Devices  
Bluetooth Headsets  
User-Programmable Overcurrent with  
Current Limiting  
Battery Overvoltage  
•
•
•
30V Maximum Input Voltage  
Supports up to 1.5A Input Current  
Robust Against False Triggering Due to  
Current Transients  
•
•
•
Thermal Shutdown  
Enable Input  
Status Indication – Fault Condition  
DESCRIPTION  
The bq24314 and bq24316 are highly integrated circuits designed to provide protection to Li-ion batteries from  
failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery  
voltage. In case of an input overvoltage condition, the IC immediately removes power from the charging circuit by  
turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold  
value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC  
also monitors its own die temperature and switches off if it becomes too hot. The input overcurrent threshold is  
user-programmable.  
The IC can be controlled by a processor and also provides status information about fault conditions to the host.  
APPLICATION SCHEMATIC  
AC Adapter  
VDC  
GND  
1 IN  
OUT  
8
1 mF  
1 mF  
bq24080  
Charger IC  
bq24316DSG  
SYSTEM  
VBAT  
6
FAULT  
CE  
4
5
2
7
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.  
2
PowerPAD is a trademark of Texas Instruments.  
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 © 2007, Texas Instruments Incorporated  
1234567...25

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BQ24314 替代型号

型号 品牌 替代类型 描述 数据表
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