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MCP73853/55
6.0
APPLICATIONS
cells, constant current followed by constant voltage.
The MCP7385X devices are designed to operate in
conjunction with a host microcontroller or in stand-
alone applications. The MCP7385X devices provide
the preferred charge algorithm for Li-Ion/Li-Polymer
Figure 6-1 depicts a typical stand-alone application
circuit, while Figures 6-2 and 6-3 depict the
accompanying charge profile.
V SET
Regulated Wall Cube
or
USB Power Bus
STAT1
16
1
15
EN
14
13
V SS2
12
V BAT3
- Lithium-Ion
V DD1
V DD2
V SS1
2
3
4
5
MCP73853
6
7
8
11
10
9
V BAT2
V BAT1
V SS3
+ Single
Cell
PROG
R PROG
R T1
R T2
TIMER
C TIMER
FIGURE 6-1:
Typical Application Circuit.
Preconditioning
Mode
Constant-current
Mode
Constant-voltage
Mode
Regulation
Voltage
(V REG )
Regulation
Current
(I REG )
Charge
Voltage
Transition
Threshold
(V PTH )
Precondition
Current
(I PREG )
Termination
Current
(I TERM )
Precondition
Safety Timer
Fast Charge
Safety Timer
Charge
Current
Elapsed Time
Termination Timer
FIGURE 6-2:
Typical Charge Profile.
? 2004-2012 Microchip Technology Inc.
DS21915B-page 15
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相关代理商/技术参数
MCP73855-I/MFG 功能描述:电池管理 2 CELL LI ION/POLY Lead Free Package RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MCP73855-I/ML 制造商:Microchip Technology Inc 功能描述:
MCP73855IMF 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855IML 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855T 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers
MCP73855T-I/MF 功能描述:电池管理 Sgl C Lthm-Ion/Plymr RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MCP73855T-I/MFG 功能描述:电池管理 LINEAR CHG MGMT CONT Lead Free Package RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MCP73855TIMF 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB Compatible Li-Ion/Li-Polymer Charge Management Controllers