PRODUCT DATASHEET
AAT2550178
SystemPowerTM
Total Power Solution for Portable Applications
Typical Characteristics — Battery Charger (continued)
Charging Current vs. Battery Voltage
(ADPSET = 8.06kΩ; VIN = 5.0V)
Constant Charging Current vs. Input Voltage
(ADPSET = 8.06kΩ)
1200
1000
800
600
400
200
0
1.2
1.0
0.8
0.6
0.4
0.2
0.0
VBAT = 3.3V
VBAT = 3.9V
VBAT = 3.5V
2.5
2.9
3.3
3.7
4.1
4.5
4.5
4.75
5.0
5.25
5.5
5.75
6.0
6.0
100
Battery Voltage (V)
Input Voltage (V)
VIH vs. Input Voltage
EN Pin (Rising)
VIL vs. Input Voltage
EN Pin (Falling)
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
-40°C
+25°C
-40°C
+25°C
+85°C
+85°C
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
6.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
Input Voltage (V)
Input Voltage (V)
Adapter Mode Supply Current
vs. ADPSET Resistor
Counter Timeout vs. Temperature
(CT = 0.1μF)
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
10
8
6
4
Constant Current
Pre-Conditioning
2
0
-2
-4
-6
-8
-10
1
10
100
1000
-50
-25
0
25
50
75
ADPSET Resistor (kΩΩ)
Temperature (°C)
w w w . a n a l o g i c t e c h . c o m
2550.2008.02.1.3
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