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BQ24156 PDF预览

BQ24156

更新时间： 2024-11-16 06:44:11
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德州仪器 - TI 电池开关
页数 文件大小 规格书
40页 2152K
描述
Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

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BQ24156 数据手册

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bq24153  
bq24156, bq24158  
www.ti.com  
SLUSA27 –MARCH 2010  
Fully Integrated Switch-Mode One-Cell Li-Ion Charger  
With Full USB Compliance and USB-OTG Support  
Check for Samples: bq24153, bq24156, bq24158  
1
FEATURES  
2
•
Charge Faster than Linear Chargers  
–
Reverse Leakage Protection Prevents  
Battery Drainage  
•
High-Accuracy Voltage and Current Regulation  
–
–
Thermal Regulation and Protection  
Input/Output Overvoltage Protection  
–
–
–
Input Current Regulation Accuracy: ±5%  
(100 mA and 500 mA)  
Charge Voltage Regulation Accuracy:  
±0.5% (25°C), ±1% (0°C to 125°C)  
•
•
•
•
•
Status Output for Charging and Faults  
USB Friendly Boot-Up Sequence  
Automatic Charging  
Charge Current Regulation Accuracy: ±5%  
•
Input Voltage Based Dynamic Power  
Management (VIN DPM)  
Power Up System without Battery bq24158  
Boost Mode Operation for USB OTG:  
(bq24153/8 only)  
•
•
Bad adaptor detection and rejection  
Safety limit register for maximum charge  
voltage and current limiting  
–
Input Voltage Range (from Battery): 2.5 V to  
4.5 V  
•
High-Efficiency Mini-USB/AC Battery Charger  
for Single-Cell Li-Ion and Li-Polymer Battery  
Packs  
–
Output for VBUS: 5.05 V/ 200 mA  
•
2.1 mm x 2 mm 20-Pin WCSP Package  
•
•
20-V Absolute Maximum Input Voltage Rating  
APPLICATIONS  
9.0-V Maximum Operating Input  
Voltage-bq24156  
•
•
•
Mobile and Smart Phones  
MP3 Players  
Handheld Devices  
•
6-V Maximum Operating Input  
Voltage-bq24153/8  
Typical Application Circuit  
•
•
Built-In Input Current Sensing and Limiting  
V
L
1 µH  
SNS  
O
V
BAT  
V
Integrated Power FETs for Up To 1.5-A Charge  
Rate-bq24156, 1.25A-bq24153/8  
VBUS  
BUS  
SW  
C
C
U1  
bq24153/8  
O1  
C
O2  
IN  
1 µF  
C
BOOT  
10 nF  
10 µF  
10 µF  
PMID  
BOOT  
PGND  
C
IN  
•
Programmable Charge Parameters through  
I2C™ Compatible Interface (up to 3.4 Mbps):  
PACK+  
+
C
4.7  
µF  
SIN  
VAUX  
10 kΩ  
0.1 µF  
CSIN  
10 kΩ  
10 kΩ  
SCL  
SCL  
SDA  
STAT  
OTG  
CSOUT  
PACK–  
–
–
–
–
–
–
–
Input Current Limit  
SDA  
STAT  
OTG  
C
SOUT  
C
VREF  
VREF  
VIN DPM Threshold  
0.1 µF  
CD  
10 kΩ  
CD  
1 µF  
10 kΩ  
Fast-Charge/Termination Current  
Charge Regulation Voltage (3.5 V to 4.44 V)  
Low Charge Current Mode Enable/Disable  
Safety Timer with Reset Control  
Termination Enable/Disable  
HOST  
DESCRIPTION  
The  
bq24153/6/8  
is  
a
compact,  
flexible,  
high-efficiency, USB-friendly switch-mode charge  
management device for single-cell Li-ion and  
Li-polymer batteries used in a wide range of portable  
applications. The charge parameters can be  
programmed through an I2C interface. The IC  
integrates a synchronous PWM controller, power  
MOSFETs, input current sensing, high-accuracy  
current and voltage regulation, and charge  
termination, into a small WCSP package.  
•
•
Synchronous Fixed-Frequency PWM  
Controller Operating at 3 MHz With 0% to  
99.5% Duty Cycle  
Automatic High Impedance Mode for Low  
Power Consumption  
•
Robust Protection  
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
I2C is a trademark of Philips Electronics.  
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 © 2010, Texas Instruments Incorporated  
1234567...40

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