AAT3688
USB Port Lithium-Ion/Polymer Battery Charger
Typical Characteristics
IFASTCHARGE vs. RSET
1000
Battery Voltage vs. Supply Voltage
4.242
USBL
100
USBH
4.221
4.200
4.179
10
1
4.158
10
100
1000
4.5
4.75
5
5.25
5.5
RSET (kΩ)
Supply Voltage (V)
Recharge Voltage vs. Temperature
4.140
4.130
4.120
4.110
4.100
4.090
4.080
4.070
4.060
4.050
4.040
-50
-25
0
25
50
Temperature (°C)
75
100
End of Charge Voltage vs. Temperature
4.242
4.221
4.200
4.179
4.158
-50
-25
0
25
50
Temperature (°C)
75
100
Preconditioning Threshold
Voltage vs. Temperature
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
2.95
-50
-25
0
25
50
75
100
Temperature (°C)
Preconditioning Charge Current vs. Temperature
(USBH; USBH = 8.06kΩ)
60
55
50
45
40
-50
-25
0
25
50
Temperature (°C)
75
100
6
3688.2006.04.1.3