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MP2631

更新时间： 2024-11-20 01:18:59
品牌 Logo 应用领域
芯源 - MPS 电池
页数 文件大小 规格书
9页 540K
描述
28V, 1A, Li-lon, Linear Battery Charger with 10mA High Voltage LDO

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MP2631 数据手册

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MP2631  
28V, 1A, Li-lon, Linear Battery Charger  
with 10mA High Voltage LDO  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2631 is a linear, high performance  
single cell Li-Ion or Li-Polymer battery charger  
with 10mA LDO. By integrating high voltage  
input protection into the charger IC, the  
MP2631 can tolerate an input surge up to 28V.  
•
Complete Solution for Charging Single-Cell  
Li-Ion Battery  
Input Surge Protection Up to 28V  
5V LDO output  
3V to 7V Input Operating Range  
Programmable Charge Current: 200mA to 1A  
Termination and auto-recharge  
0.75% VBATT Accuracy over Temperature  
<1µA Battery Reverse Current  
Automatic die temperature limiting  
Fault and Charge Status Indicators  
External Soft-Start to Control Inrush Current  
3mm x 3mm QFN Package  
•
•
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•
•
•
•
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The internal 5V LDO can be used as a system  
watchdog supply to monitor charge status. The  
LDO is ON when the input voltage is greater  
than 3V and less than 7V, and remains ON  
when the MP2631 is in SHDN mode. When  
input is higher than 7.0V, the LDO output will be  
cut off from the input. When input is lower than  
5V, the LDO will work in the dropout region.  
The device features constant current (CC) and  
constant voltage (CV) charging modes with  
programmable charge current (200mA to 1A),  
auto-recharge and trickle charge. MP2631  
provides ACOK and charge status indications to  
the system. The OVP circuitry will automatically  
disconnect both charger and LDO from input  
when VIN exceeds 7V.  
APPLICATIONS  
•
•
•
•
•
Cell Phones  
Digital Cameras  
Smart Phones  
PDAs  
MP3 Players  
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of  
Monolithic Power Systems, Inc.  
For guaranteed safe operation, the MP2631  
limits the die temperature to a preset value  
when the device is heated up due to limited  
PCB space. MP2631 is available in 10-pin 3mm  
x 3mm QFN package.  
TYPICAL APPLICATION CIRCUIT  
U1  
5-6.5V  
1
10  
VIN  
LDO  
BAT  
IN  
LDO  
BAT  
C1  
R2  
1K  
R1  
1K  
MP2631DQ  
GND  
2
3
35V  
9
8
SS  
LED2  
Red  
C6  
LED1  
Green  
ACOK  
ACK  
ISET  
C5  
NS  
GND  
7
5
4
6
R3  
CHG  
NC  
CHG  
1.96K 3.09K 7.68K  
C3  
NS  
1%  
1%  
1%  
SHDN  
GND  
SHDN  
JP1  
JP2  
JP3  
MP2631 Rev.0.9  
9/15/2008  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2008 MPS. All Rights Reserved.  
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