AAT3681 AAT, AAT3681 Datasheet - Page 5

• Manufacturer Part Number: AAT3681
• Description: USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
• Manufacturer: AAT

Typical Characteristics
3681.2007.01.1.2
1000
600
500
400
300
200
100
100
4.23
4.22
4.21
4.20
4.19
4.18
4.17
10
0
1
2.7
1
R
R
R
R
-50
R
Charging Current vs. Battery Voltage
SET
SET
SET
SET
SET
End of Charge Voltage Regulation
2.9
= 3.24K
= 5.36K
= 8.06K
= 16.2K
Constant Charging Current
= 31.6K
vs. Set Resistor Values
-25
3.1
vs. Temperature
10
(AAT3681-1 Only)
Temperature (°C)
0
3.3
(R
SET
R
V
SET
= 8.06kΩ Ω )
BAT
3.5
25
(kΩ Ω )
(V)
3.7
100
50
3.9
75
4.1
1000
4.3
100
Lithium-Ion/Polymer Battery Charger
350
300
250
200
150
100
220
210
200
190
180
170
4.206
4.204
4.202
4.200
4.198
4.196
4.194
50
0
2.7
4
4.5
Charging Current vs. Battery Voltage
V
BAT
4.25
2.9
Constant Charging Current vs.
End of Charge Battery Voltage
4.75
= 3.3V
4.5
V
USB Port or AC Adapter
BAT
3.1
vs. Supply Voltage
5
4.75
= 3.6V
R
R
R
R
Supply Voltage
SET
SET
SET
SET
(AAT3681 Only)
3.3
(R
5.25
5
SET
= 5.36kΩ
= 8.06kΩ
= 16.2kΩ
= 31.6kΩ
V
V
V
= 8.06kΩ Ω )
BAT
5.25
V
3.5
IN
IN
5.5
BAT
(V)
(V)
(V)
= 4V
5.5
R
R
3.7
5.75
SET
SET
5.75
= 8.06kΩ
= 31.6kΩ
3.9
6
6
6.25
4.1
6.25
6.5
6.5
4.3
5