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MCP73861_11

更新时间： 2024-11-25 11:04:27
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电池
页数 文件大小 规格书
34页 478K
描述
Advanced Single or Dual Cell, Fully Integrated Li-Ion/Li-Polymer Charge Management

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MCP73861_11 数据手册

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MCP73861/2/3/4  
Advanced Single or Dual Cell, Fully Integrated Li-Ion/Li-Polymer  
Charge Management Controllers  
Features  
Description  
• Linear Charge Management Controllers  
- Integrated Pass Transistor  
The MCP7386X family of devices features highly  
advanced linear charge management controllers for  
use in space-limited, cost-sensitive applications. The  
devices combine high-accuracy, constant voltage and  
current regulation, cell preconditioning, cell tempera-  
ture monitoring, advanced safety timers, automatic  
charge termination, internal current sensing, reverse-  
blocking protection, charge status and fault indication  
in either a space-saving 16-pin 4 x 4 QFN package, or  
a 16-pin SOIC package. The MCP7386X provides a  
complete, fully functional, stand-alone charge manage-  
ment solution with a minimum number of external  
components.  
- Integrated Current Sense  
- Reverse-Blocking Protection  
• High-Accuracy Preset Voltage Regulation: + 0.5%  
• Four Selectable Voltage Regulation Options:  
- 4.1V, 4.2V – MCP73861/3  
- 8.2V, 8.4V – MCP73862/4  
• Programmable Charge Current: 1.2A Maximum  
• Programmable Safety Charge Timers  
• Preconditioning of Deeply Depleted Cells  
• Automatic End-of-Charge Control  
• Optional Continuous Cell Temperature Monitoring  
• Charge Status Output for Direct LED Drive  
• Fault Output for Direct LED Drive  
• Automatic Power-Down  
The MCP73861/3 is intended for applications utilizing  
single-cell Lithium-Ion or Lithium-Polymer battery  
packs, while the MCP73862/4 is intended for dual  
series cell Lithium-Ion or Lithium-Polymer battery  
packs. The MCP73861/3 has two selectable  
voltage-regulation options available (4.1V and 4.2V),  
for use with either coke or graphite anodes and operate  
with an input voltage range of 4.5V to 12V. The  
MCP73862/4 has two selectable voltage-regulation  
options available (8.2V and 8.4V), for use with coke or  
graphite anodes, and operate with an input voltage  
range of 8.7V to 12V.  
• Thermal Regulation  
• Temperature Range: -40°C to +85°C  
• Packaging: 16-Pin, 4 x 4 QFN  
16-Pin SOIC  
Applications  
• Lithium-Ion/Lithium-Polymer Battery Chargers  
• Personal Data Assistants (PDAs)  
• Cellular Telephones  
The MCP73861/2 and MCP73863/4 differ only in the  
function of the charge status output (STAT1) when a  
charge cycle has been completed. The MCP73861/2  
flashes the output, while the MCP73863/4 turns the  
output off. Refer to Section 5.2.1 “Charge Status  
Outputs (STAT1, STAT2)”.  
• Hand-Held Instruments  
• Cradle Chargers  
• Digital Cameras  
The MCP7386X family of devices are fully specified  
over the ambient temperature range of -40°C to +85°C.  
• MP3 Players  
Package Types  
16-Pin QFN  
16-Pin SOIC  
STAT2  
STAT1  
1
2
3
4
5
6
7
8
EN  
V
16  
15  
14  
13  
12  
11  
10  
9
SS2  
16 15 14 13  
V
V
V
V
V
SET  
V
V
V
V
V
V
BAT3  
BAT2  
BAT1  
SS3  
1
12  
11  
10  
9
SET  
BAT3  
BAT2  
BAT1  
SS3  
V
DD1  
2
3
4
DD2  
DD2  
EP  
17  
V
DD2  
V
V
SS1  
V
SS1  
PROG  
TIMER  
5
6
7
8
THREF  
THERM  
2011 Microchip Technology Inc.  
DS21893E-page 1  
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