MCP73871 Microchip Technology, MCP73871 Datasheet - Page 13

• Manufacturer Part Number: MCP73871
• Description: Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controller
• Manufacturer: Microchip Technology

www.DataSheet.in
Note: Unless otherwise indicated, V
FIGURE 2-25:
FIGURE 2-26:
(130 mAh Li-Ion Battery).
© 2009 Microchip Technology Inc.
4.5
3.5
2.5
1.5
0.5
4
3
2
1
0
0
0.1
Time (Minutes)
0.2
Startup Delay.
Complete Charge Cycle
Time (ms)
0.3
MCP73871
V
SEL = Low
PROG2 = Low
DD
IN
0.4
= 5.2V
= [V
REG
0.5
0.5
0.4
0.3
0.2
0.1
0
(typical) + 1V], I
OUT
FIGURE 2-27:
(1000 mAh Li-Ion Battery).
FIGURE 2-28:
Preconditioning (1000 mAh Battery).
= 10 mA and T
4.5
3.5
2.5
1.5
0.5
4.5
3.5
2.5
1.5
0.5
4
3
2
1
0
4
3
2
1
0
0
0
Preconditioning
10
0.2
20
A
= +25°C, Constant-voltage mode.
Time (Minute)
Time (Minute)
30
0.4
Complete Charge Cycle
Typical Charge Profile in
Preconditioning Threshold Voltage
Fast Charge (Constant Current)
40
MCP73871
0.6
50
MCP73871
V
R
R
MCP73871
V
R
R
DD
PROG1
PROG3
DD
PROG1
PROG3
60
= 5.2V
0.8
DS22090B-page 13
= 5.2V
= 1 kΩ
= 25 kΩ
= 1 kΩ
= 25 kΩ
70
80
1
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0