AAT3686
USB Port/AC Adapter
Lithium-Ion/Polymer Battery Charger
Typical Characteristics
Fast Charge Current vs. Temperature
(ADPSET = 8.0kΩΩ; USBH = 8.06kΩ)
Charging Current vs. Battery Voltage
(Adapter; ADPSET = 8.06kΩΩ)
1100
1080
1060
1040
1020
1000
980
540
1.2
1.0
0.8
0.6
0.4
0.2
0.0
530
520
510
500
490
480
470
460
450
440
USBH
ADP
960
940
920
900
2.5
2.9
3.3
3.7
4.1
4.5
-50
-25
0
25
50
75
100
Temperature (°C)
Battery Voltage (V)
Charging Current vs. Battery Voltage
Charging Current vs. Battery Voltage
(USBL; USBL = 40.2kΩΩ)
(USBH; USBH = 8.06kΩ)
600
120
100
80
60
40
20
0
500
400
300
200
100
0
2.5
3.0
3.5
4.0
4.5
2.5
3.0
3.5
4.0
4.5
Battery Voltage (V)
Battery Voltage (V)
Fast Charge Current vs. Supply Voltage
(Adapter; ADPSET = 8.06kΩΩ)
Fast Charge Current vs. Supply Voltage
(USBH; USBH = 8.06kΩ)
600
1200
VBAT = 3.3V
VBAT = 3.3V
500
1000
800
600
400
200
0
VBAT = 3.5V
VBAT = 3.9V
400
VBAT = 3.9V
300
200
100
0
VBAT = 3.5V
4.0
4.5
5.0
5.5
6.0
4.0
4.25
4.5
4.75
5.0
5.25
5.5
5.75
6.0
Supply Voltage (V)
Supply Voltage (V)
3686.2006.10.1.9
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
