AAT3681 Datasheet, PDF (6/15 Pages) Advanced Analogic Technologies – USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

AAT3681
USB Port or AC Adapter
Lithium-Ion/Polymer Battery Charger
Typical Characteristics
Constant Charging Current vs. Temperature
(R_SET = 8.06kΩ)
210
208
205
203
200
198
195
193
190
-50
-25
0
25
50
Temperature (°C)
75
100
Operating Supply Current vs. Set Resistor
1000
100
V_BAT = 3.6V
V_BAT = 2.85V
10
1
10
100
R_SET (kΩ)
Operating Current vs. Temperature
(R_SET = 8.06kΩ)
550
500
450
400
350
300
-50
-25
0
25
50
Temperature (°C)
75
100
Preconditioning Threshold Voltage
vs. Temperature
(R_SET = 8.06kΩ; AAT3681 Only)
3.03
3.02
3.01
3
2.99
2.98
2.97
-50
-25
0
25
50
Temperature (°C)
75
100
Preconditioning Charge Current
vs. Temperature
(R_SET = 8.06kΩ; AAT3681 Only)
20.8
20.6
20.4
20.2
20.0
19.8
19.6
19.4
19.2
-50
-25
0
25
50
75
100
Temperature (°C)
Preconditioning Charge Current
vs. Supply Voltage
(AAT3681 Only)
35
30
R_SET = 5.36kΩ
25
20
R_SET = 8.06kΩ
15
R_SET = 16.2kΩ
10
5
R_SET = 31.6kΩ
0
4 4.25 4.5 4.75 5 5.25 5.5 5.75 6 6.25 6.5
V_IN (V)
6
3681.2007.01.1.2