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MCP73871-2CCI/ML Scheda tecnica(PDF) 27 Page - Microchip Technology

Il numero della parte MCP73871-2CCI/ML
Spiegazioni elettronici  Stand-Alone System Load Sharing and Li-Ion/Li-Polymer Battery Charge Management Controller
PDF  40 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP73871-2CCI/ML Scheda tecnica(HTML) 27 Page - Microchip Technology

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 2008-2013 Microchip Technology Inc.
DS20002090C-page 27
MCP73871
6.0
APPLICATIONS
The MCP73871 device is designed to operate in
conjunction with a host microcontroller or in
stand-alone applications. The MCP73871 device
provides the preferred charge algorithm for Lithium-Ion
and Lithium-Polymer cells. The algorithm uses
Constant Current mode followed by Constant Voltage
mode. Figure 6-1 depicts a typical stand-alone
MCP73871 application circuit, while Figure 6-2 and
Figure 6-3 depict the accompanying charge profile.
FIGURE 6-1:
MCP73871Typical Stand-Alone Application Circuit with VPCC.
FIGURE 6-2:
Typical Charge Profile
(1000 mAh Battery).
FIGURE 6-3:
Typical Charge Profile in
Preconditioning (1000 mAh Battery).
STAT1
LBO
IN
OUT
PG
VBAT
Single-Cell
Li-Ion Battery
7
1, 20
8
18, 19
10 μF
10, 11, EP
5V AC-DC Adapter
or
USB Port
STAT2
THERM
VSS
PROG1
PROG3 12
13 RPROG1
6
5
14, 15, 16
470
470
470
2
4.7 μF
System
Load
SEL
TE
PROG2
Hi
Low
Hi
Low
Hi
Low
3
4
9
RPROG3
VPCC
NTC
10 k
Hi
Low
17
CE
4.7 μF
330 k
110 k
MCP73871 Device Typical Application



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