Datasheet

MCP73833/4
DS22005B-page 8 © 2009 Microchip Technology Inc.
TYPICAL PERFORMANCE CURVES (Continued)
Note: Unless otherwise indicated, V
DD
= 5.2V, V
REG
= 4.20V, I
OUT
= 10 mA and T
A
= +25°C, Constant-voltage mode.
FIGURE 2-7: Charge Current (I
OUT
) vs.
Junction Temperature (T
J
).
FIGURE 2-8: Charge Current (I
OUT
) vs.
Junction Temperature (T
J
).
FIGURE 2-9: Thermistor Bias Current
(I
THRERM
) vs. Supply Voltage (V
DD
).
FIGURE 2-10: Thermistor Bias Current
(I
THRERM
) vs. Ambient Temperature (T
A
).
FIGURE 2-11: Power Supply Ripple
Rejection (PSRR).
FIGURE 2-12: Power Supply Ripple
Rejection (PSRR).
0
20
40
60
80
100
120
25 35 45 55 65 75 85 95
105 115 125 135 145 155
Junction Temperature (°C)
Charge Current (mA)
R
PROG
= 10 k:
0
200
400
600
800
1000
1200
25 35 45 55 65 75 85 95
105 115 125 135 145 155
Junction Temperature (°C)
Charge Current (mA)
R
PROG
= 1 k:
48.0
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
4.50 4.75 5.00 5.25 5.50 5.75 6.00
Supply Voltage (V)
Thermistor Bias Current (
P
A)
48.0
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80
Ambient Temperature (°C)
Thermistor Bias Current (µA)
-70
-60
-50
-40
-30
-20
-10
0
0.01 0.1 1 10 100 1000
Frequency (kHz)
Attenuation (dB)
V
AC
= 100 mVp-p
I
OUT
= 10 mA
C
OUT
= 4.7 µF, X7R
Ceramic
-60
-50
-40
-30
-20
-10
0
0.01 0.1 1 10 100 1000
Frequency (kHz)
Attenuation (dB)
V
AC
= 100 mVp-p
I
OUT
= 100 mA
C
OUT
= 4.7 µF, X7R
Ceramic