AAT3682
Lithium-Ion/Polymer Linear Battery Charger
Typical Characteristics
Charging Current vs. Battery Voltage
Safe Operating Area
(RSENSE = 0.2Ω with External Schottky)
(TJ(MAX) = 120°C)
600
500
400
7.0
6.0
5.0
TAMB = 85°C
4.0
TAMB = 70°C
VIN = 4.5V
300
TAMB = 50°C
TAMB = 40°C
3.0
2.0
1.0
0.0
VIN = 5.5V
200
VIN = 4.75V
100
Schottky VF = 0.2V
0.2
0
2.5
0.0
0.4
0.6
0.8
3.0
3.5
4.0
4.5
5.0
Battery Voltage (V)
Charging Current (A)
Safe Operating Area
(TJ(MAX) = 150°C)
6.2
6.0
5.8
5.6
5.4
5.2
5.0
TAMB = 85°C
TAMB = 70°C
TAMB = <50°C
Schottky VF = 0.2V
0.2
0
0.4
0.6
0.8
Charging Current (A)
3682.2006.12.1.3
7