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.
104
Charge Current (mA)
102
101
100
99
98
97
96
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Charge Current (mA)
103
R
PROG
= 10 k
Ω
525
450
375
300
225
150
75
0
25
35
45
55
65
75
85
95
105
115
R
PROG
= 2 k
Ω
125
135
145
Ambient Temperature (°C)
Junction Temperature (°C)
FIGURE 2-7:
Charge Current (I
OUT
) vs.
Ambient Temperature (T
A
).
516
Charge Current (mA)
FIGURE 2-10:
Charge Current (I
OUT
) vs.
Junction Temperature (T
J
).
0
-10
Attenuation (dB)
514
512
510
508
506
504
502
500
0
10
20
30
40
50
R
PROG
= 2 k
Ω
V
AC
= 100 mVp-p
I
OUT
= 10 mA
C
OUT
= 4.7 µF, X7R Ceramic
-20
-30
-40
-50
-40
-30
-20
-10
-60
0.01
60
70
80
0.1
1
10
100
1000
Ambient Temperature (°C)
Frequency (kHz)
FIGURE 2-8:
Charge Current (I
OUT
) vs.
Ambient Temperature (T
A
).
120
Charge Current (mA)
R
PROG
= 10 k
Ω
FIGURE 2-11:
Power Supply Ripple
Rejection (PSRR).
0
-10
Attenuation (dB)
105
90
75
60
45
30
15
0
25
35
45
55
65
75
85
95
105
115
V
AC
= 100 mVp-p
I
OUT
= 100 mA
C
OUT
= 4.7 µF, X7R Ceramic
-20
-30
-40
-50
-60
0.01
125
135
145
155
0.1
1
10
100
1000
Junction Temperature (°C)
Frequency (kHz)
FIGURE 2-9:
Charge Current (I
OUT
) vs.
Junction Temperature (T
J
).
FIGURE 2-12:
Power Supply Ripple
Rejection (PSRR).
©
2006 Microchip Technology Inc.
DS21984B-page 7
155
MICROCHIP [ MICROCHIP TECHNOLOGY ]
