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BQ24167

更新时间： 2024-11-16 11:46:07
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德州仪器 - TI 电池开关
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35页 1902K
描述
2.5A, Dual-Input, Single Cell Switch Mode Li-Ion Battery Charger with Power Path

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BQ24167 数据手册

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bq24165  
bq24166  
bq24167  
www.ti.com  
SLUSAP4A –DECEMBER 2011–REVISED MARCH 2012  
2.5A, Dual-Input, Single Cell Switch Mode Li-Ion Battery Charger with Power Path  
Management  
Check for Samples: bq24165 , bq24166, bq24167  
1
FEATURES  
APPLICATIONS  
•
High-Efficiency Switch Mode Charger with  
Separate Power Path Control  
•
•
•
•
Handheld Products  
Portable Media Players  
Portable Equipment  
–
Make a GSM Call with a Deeply Discharged  
Battery or No Battery  
Netbook and Portable Internet Devices  
–
Instantly Startup System from a Deeply  
Discharged Battery or No Battery  
DESCRIPTION  
•
Dual Input Charger  
The bq24165, bq24166 and bq24167 are highly  
integrated single cell Li-Ion battery charger and  
system power path management devices targeted for  
space-limited, portable applications with high capacity  
batteries. The single cell charger has dual inputs  
which allow operation from either a USB port or  
higher power input supply (i.e., AC adapter or  
wireless charging input) for a versatile solution. The  
two inputs are fully isolated from each other and are  
managed by the bq24165/166/167 with the IN input  
having precedence.  
–
20V Input Rating, With Over-Voltage  
Protection (OVP)  
–
–
6.5V for USB Input  
10.5V for IN Input  
–
Integrated FETs for Up to 2.5A Charge Rate  
–
–
Up to 2.5A from IN Input  
Up to 1.5A from USB Input  
•
•
Highly Integrated Battery N-Channel MOSFET  
Controller for Power Path Management  
APPLICATION SCHEMATIC  
Safe and Accurate Battery Management  
Functions  
IN  
SW  
AC Adapter or  
Wireless Power  
–
–
0.5% Battery Regulation Accuracy  
10% Charge Current Accuracy  
System  
Load  
VDPM  
PMIDI  
•
•
Adjustable Charge Current, Input Current  
Limit, and VINDPM Threshold (for IN input)  
BOOT  
SYS  
USB  
VBUS  
D+  
D–  
Easy JEITA Implementation  
–
Charge Parameter Selector Inputs (CE1,  
CE2) for (bq24165)  
GND  
PMIDU  
•
Voltage-based, NTC Monitoring Input (TS)  
–
–
Standard Temperature Range (bq24166)  
JEITA Compatible (bq24167)  
BAT  
IUSB1  
IUSB2  
IUSB3  
HOST  
•
•
Thermal Regulation Protection for Output  
Current Control  
CE1  
CE2  
TEMP PACK+  
PGND CHG PG  
DRV  
+
–
Low Battery Leakage Current, BAT Short-  
Circuit Protection  
PACK–  
•
•
•
Soft-Start Feature to Reduce Inrush Current  
Thermal Shutdown and Protection  
Available in Small 2.8mm x 2.8mm 49-ball  
WCSP or 4mm x 4mm QFN-24 Packages  
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 © 2011–2012, Texas Instruments Incorporated  
1234567...35

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