Typical Characteristics
IFASTCHARGE vs. RSET
10000
1000
100
USB
ADP
10
1
10
100
RSET (kΩ)
AAT3689
0.5A/1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
Battery Voltage vs. Supply Voltage
4.242
4.221
4.200
4.179
USB
ADP
1000
4.158
4.5
4.75
5.0
5.25
5.5
Supply Voltage (V)
Battery Recharge Voltage Threshold
vs. Temperature
4.140
4.130
4.120
4.110
4.100
4.090
4.080
ADP
USB
4.070
4.060
4.050
4.040
-50
-25
0
25
50
75
100
Temperature (°C)
End of Charge Voltage vs. Temperature
4.242
4.221
4.200
4.179
ADP
USB
4.158
-50
-25
0
25
50
Temperature (°C)
75
100
Preconditioning Voltage Threshold
vs. Temperature
3.05
3.04
3.03
3.02
USB
3.01
3.00
2.99
2.98 ADP
2.97
2.96
2.95
-50
-25
0
25
50
75
100
Temperature (°C)
Preconditioning Charge Current vs. Temperature
(RSETADP = 8.06kΩ; RSETUSB = 8.06kΩ)
120
60
110
55
ADP
100
50
USB
90
45
80
-50
-25
0
25
50
75
Temperature (°C)
40
100
6
3689.2006.11.1.0