AAT3684 Datasheet, PDF (6/17 Pages) Advanced Analogic Technologies – 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

BatteryManager^TM
PRODUCT DATASHEET
AAT3684
500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
Typical Characteristics
Operating Supply Current vs. Set Resistor
1000
V_BAT = 3.6V
100
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
75
100
Temperature (°C)
Preconditioning Threshold Voltage
vs. Temperature
(R_SET = 8.06kΩ; AAT3684 Only)
3.03
3.02
3.01
3
2.99
2.98
2.97
-50
-25
0
25
50
75
100
Temperature (°C)
Preconditioning Charge Current
vs. Temperature
(R_SET = 8.06kΩ; AAT3684 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
(AAT3684 Only)
60
R_SET = 3.24K
50
40
30
R_SET = 5.36K
20
R_SET = 8.06K
10
R_SET = 16.2K
R_SET = 31.6K
0
4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6 6.2 6.4
V_IN (V)
Recharging Threshold Voltage
vs. Temperature
(R_SET = 8.06kΩ)
4.18
4.16
4.14
4.12
4.10
4.08
4.06
4.04
4.02
-50
-25
0
25
50
75
100
Temperature (°C)
6
www.analogictech.com
3684.2007.12.1.2