AAT3685
Lithium-Ion/Polymer Battery Charger
Typical Characteristics
IFASTCHARGE vs. RSET
Battery Voltage vs. Supply Voltage
4.242
10000
4.221
4.200
4.179
4.158
1000
SETL
100
SETH
10
1
10
100
1000
4.5
4.75
5
5.25
5.5
RSET (kΩ)
Supply Voltage (V)
Recharge Voltage vs. Temperature
End of Charge 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
4.242
4.221
4.200
4.179
4.158
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
Preconditioning Threshold
Voltage vs. Temperature
Preconditioning Charge Current vs. Temperature
(SETH; SETH = 3.83kΩΩ)
120
110
100
90
3.05
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
2.95
80
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
6
3685.2006.10.1.3
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
