AAT2550
Total Power Solution for Portable Applications
Typical Characteristics—Battery Charger
Charging Current vs. Battery Voltage
(ADPSET = 8.06kΩ; VIN = 5.0V)
Fast Charge Current vs. Supply Voltage
(ADPSET = 8.06kΩΩ)
1200
1.2
1.0
0.8
0.6
0.4
0.2
0.0
VBAT = 3.3V
1000
800
600
400
200
0
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)
Supply Voltage (V)
VIH vs. Supply Voltage
EN Pin (Rising)
VIL vs. Supply 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
Supply Voltage (V)
Supply Voltage (V)
Adapter Mode Supply Current
vs. ADPSET Resistor
Counter Timeout vs. Temperature
(CT = 0.1μμF)
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 (kΩ)
Temperature (°C)
2550.2006.07.1.0
11
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
