AAT3681A
500mA USB Port or AC Adapter
Lithium-Ion/Polymer Battery Charger
Typical Characteristics
(R
SET
= 8.06kΩ; AAT3681A, AAT3681A-1 and AAT3681A-2 only)
Ω;
4.16
4.14
Recharging Threshold Voltage
vs. Temperature
Shutdown Current vs. Supply Voltage
(R
SET
= 8.06kΩ)
Ω
1800
Shutdown Current (nA)
4.18
1600
1400
1200
1000
800
600
400
200
0
4.0
4.5
5.0
V
RCH
(V)
85°C
4.12
4.10
4.08
4.06
4.04
4.02
-50
-25
0
25
50
75
100
25°C
5.5
6.0
6.5
-40°C
7.0
7.5
Temperature (°C)
Supply Voltage (V)
V
IH_ENABLE
vs. Supply Voltage
(R
SET
= 8.06kΩ)
Ω
1.5
1.4
1.3
1.2
1.1
V
IL_ENABLE
vs. Supply Voltage
(R
SET
= 8.06kΩ)
Ω
-40°C
V
IH_ENABLE
(V)
V
IL_ENABLE
(V)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
4.0
4.5
-40°C
1.0
0.9
0.8
0.7
0.6
0.5
25°C
5.0
5.5
6.0
85°C
25°C
85°C
6.5
7.0
7.5
0.4
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
V
IN
(V)
V
IN
(V)
3681A.2007.10.1.2
7