AAT3682
Lithium-Ion/Polymer Linear Battery Charger
Typical Characteristics
Charging Current vs. Temperature
Charging Current vs. Input Voltage
(RSENSE = 0.15Ω with External Schottky)
(RSENSE = 0.15Ω)
700
690
680
670
660
650
700
600
500
VBAT = 4.1V
400
300
VBAT = 3.6V
200
100
0
4.0
4.5
5.0
5.5
6.0
6.0
6
-50
-25
0
25
50
75
100
Temperature (°C)
Input Voltage (V)
Charging Current vs. Battery Voltage
Trickle Charge Current vs. Input Voltage
(RSENSE = 0.15Ω with External Schottky)
(RSENSE = 0.15Ω; 1.8X Mode)
700
600
500
400
300
200
100
170
165
160
155
150
145
140
135
130
VIN = 5.5V
VIN = 4.5V
VIN = 4.75V
0
2.5
3.0
3.5
4.0
4.5
5.0
4.0
4.5
5.0
5.5
Battery Voltage (V)
Input Voltage (V)
Charging Current vs. Input Voltage
Trickle Charge Current vs. Input Voltage
(RSENSE = 0.2Ω with External Schottky)
(RSENSE = 0.2Ω; 1.8X Mode)
600
500
400
300
200
100
0
104
102
100
98
V
BAT = 4.0V
V
BAT = 3.6V
96
94
4
4.5
5
5.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Input Voltage (V)
6
3682.2006.12.1.3
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
