MCP73838 Microchip Technology Inc., MCP73838 Datasheet - Page 10

• Manufacturer Part Number: MCP73838
• Description: Advanced Stand-alone Li-ion / Li-polymer Battery Charge Management Controller With Autonomous Ac-adapter Or Usb-port Source Selection
• Manufacturer: Microchip Technology Inc.

MCP73837/8
Note: Unless otherwise indicated, V
FIGURE 2-13:
Junction Temperature (T
FIGURE 2-14:
Junction Temperature (T
FIGURE 2-15:
vs. Supply Voltage (V
DS22071A-page 10
120
110
100
52.0
51.5
51.0
50.5
50.0
49.5
49.0
48.5
48.0
47.5
47.0
600
550
500
450
400
350
300
250
200
150
100
90
80
70
60
50
40
30
20
10
50
0
0
4.5
4.8
Junction Temperature (°C)
Junction Temperature (°C)
Supply Voltage (V)
Charge Current (I
Charge Current (I
5.0
Thermistor Current (I
DD
).
J
J
).
).
5.3
5.5
DD
R
R
Temp = +25°C
= [V
PROG
PROG
OUT
OUT
5.8
REG
= 2 kΩ
= 10 kΩ
THERM
) vs.
) vs.
(typical) + 1V], I
6.0
)
OUT
FIGURE 2-16:
vs. Ambient Temperature (T
FIGURE 2-17:
Rejection (PSRR).
FIGURE 2-18:
Rejection (PSRR).
= 30 mA and T
52.0
51.5
51.0
50.5
50.0
49.5
49.0
48.5
48.0
47.5
47.0
-10
-20
-30
-40
-50
-60
-70
-10
-20
-30
-40
-50
-60
-70
0
0
0.01
0.01
I
C
OUT
I
C
OUT
OUT
OUT
= 10 mA
= 4.7 µF
= 100 mA
= 4.7 µF
0.1
0.1
Ambient Temperature (°C)
A
= +25°C, Constant-voltage mode.
Thermistor Current (I
Power Supply Ripple
Power Supply Ripple
Frequency (kHz)
Frequency (kHz)
© 2007 Microchip Technology Inc.
1
1
A
).
10
10
V
100
100
DD
= 5.2V
THERM
1000
1000
)