MCP73837 Microchip Technology, Inc., MCP73837 Datasheet - Page 12

• Manufacturer Part Number: MCP73837
• Manufacturer: Microchip Technology, Inc.

MCP73837/8
Note: Unless otherwise indicated, V
UVLOVAC
FIGURE 2-25:
(USB = High)
FIGURE 2-26:
(1200 mAh Li-Ion Battery).
FIGURE 2-27:
Thermal Regulation (1200 mAh Li-Ion Battery).
DS22071A-page 12
5.0
4.0
3.0
2.0
1.0
0.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
V
R
1200 mAh Li-Ion Battery
DD
PROG
V
R
1200 mAh Li-Ion Battery
1
DD
PROG
= 5.2V
= 5.2V
= 1 k Ω
= 1 kΩ
2
3
Time (Minutes)
Time (Minutes)
V
Complete Charge Cycle
Typical Charge Profile in
4
USB
5
UVLO Start Delay
6
7
DD
8
= [V
9
REG
10
1.2
0.9
0.6
0.3
0
1.2
1
0.8
0.6
0.4
0.2
0
(typical) + 1V], I
OUT
FIGURE 2-28:
(180 mAh Li-Ion Battery).
FIGURE 2-29:
Preconditioning and CC-CV (180 mAh Li-Ion
Battery).
= 30 mA and T
5.0
4.0
3.0
2.0
1.0
0.0
5.0
4.0
3.0
2.0
1.0
0.0
0
0
V
R
180 mAh Li-Ion Battery
DD
PROG
20 40 60 80 100 120 140 160 180
1
= 5.2V
C.C. Begins
Preconditioning
= USB_Low
2
A
3
= +25°C, Constant-voltage mode.
Time (Minutes)
Time (Minutes)
4
Complete Charge Cycle
Typical Charge Profile in
© 2007 Microchip Technology Inc.
5
V
R
180 mAh Li-Ion Battery
DD
PROG
6
= 5.2V
= USB_Low
7
C.V. Begins
8
9
10
0.12
0.1
0.08
0.06
0.04
0.02
0
0.12
0.1
0.08
0.06
0.04
0.02
0