MCP73831/2
TYPICAL PERFORMANCE CURVES (CONTINUED)
NOTE:
Unless otherwise indicated, V
DD
= [V
REG
(typ.) + 1V], I
OUT
= 10 mA and T
A
= +25°C, Constant-Voltage mode.
14
Source Voltage (V)
0.10
0.05
Output Current (A)
Output Ripple (V)
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
-0.20
0
20
C
OUT
= 4.7 µF, X7R Ceramic
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
180
200
Output Ripple (V)
Charge Current (mA)
Charge Current (mA)
12
10
8
6
4
2
0
-2
0
20
40
60
80
100
120
140
160
180
200
I
OUT
= 10 mA
C
OUT
= 4.7 µF, X7R Ceramic
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
40
60
80
100
120
140
Time (µs)
Time (µs)
FIGURE 2-13:
14
Source Voltage (V)
Line Transient Response.
0.10
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
160
180
200
FIGURE 2-16:
6.0
Battery Voltage (V)
Load Transient Response.
120
100
80
60
40
12
10
8
6
4
2
0
-2
0
20
40
60
80
100
120
140
I
OUT
= 100 mA
C
OUT
= 4.7 µF, X7R Ceramic
0.05
Output Ripple (V)
5.0
4.0
3.0
2.0
1.0
0.0
0
20
40
60
80
100
120
140
160
180
MCP73831-2AC/IOT
V
DD
= 5.2V
R
PROG
= 10 k
Ω
160
20
0
Time (µs)
Time (minutes)
FIGURE 2-14:
Line Transient Response.
FIGURE 2-17:
Complete Charge Cycle
(180 mAh Li-Ion Battery).
6.0
Battery Voltage (V)
0.35
Output Current (A)
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
C
OUT
= 4.7 µF, X7R Ceramic
600
500
400
300
200
MCP73831-2AC/IOT
V
DD
= 5.2V
R
PROG
= 2 k
Ω
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
0
20
40
60
80
100
120
140
160
180
200
Output Ripple (V)
5.0
4.0
3.0
2.0
1.0
0.0
0
30
60
90
120
150
180
210
240
-0.10
-0.12
100
0
Time (µs)
Time (minutes)
FIGURE 2-15:
Load Transient Response.
FIGURE 2-18:
Complete Charge Cycle
(1000 mAh Li-Ion Battery).
DS21984B-page 8
©
2006 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
