AAT3681AIJS-4.2-2-T1 ANALOGICTECH [Advanced Analogic Technologies], AAT3681AIJS-4.2-2-T1 Datasheet - Page 5

• Manufacturer Part Number: AAT3681AIJS-4.2-2-T1
• Description: 500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Typical Characteristics
3681A.2007.10.1.2
1000
100
600
500
400
300
200
100
4.23
4.22
4.21
4.20
4.19
4.18
4.17
10
0
1
2.7
1
-50
R
R
R
Charging Current vs. Battery Voltage
R
R
SET
SET
SET
SET
SET
End of Charge Voltage Regulation
= 8.06kΩ
= 3.24kΩ
= 5.36kΩ
Constant Charging Current
= 16.2kΩ
2.9
= 31.6kΩ
vs. Set Resistor Values
-25
3.1
vs. Temperature
10
(AAT3681A-1 only)
Temperature (°C)
0
(R
3.3
SET
R
V
SET
= 8.06kΩ Ω )
BAT
3.5
25
(kΩ Ω )
(V)
3.7
100
50
3.9
75
4.1
1000
100
4.3
Lithium-Ion/Polymer Battery Charger
Constant Charging Current vs. Input Voltage
600
500
400
300
200
100
280
260
240
220
200
180
160
140
120
500mA USB Port or AC Adapter
4.220
4.215
4.210
4.205
4.200
4.195
4.190
4.185
4.180
0
2.7
4
4.5
(AAT3681A, AAT3681A-2 and AAT3681A-3 only)
Charging Current vs. Battery Voltage
V
BAT
2.9
V
V
End of Charge Battery Voltage
= 3.3V
4.5
BAT
BAT
5.0
= 4.0V
= 3.6V
R
R
R
3.1
R
R
SET
SET
SET
SET
SET
5
vs. Input Voltage
= 8.06kΩ
(R
= 3.24kΩ
= 5.36kΩ
= 16.2kΩ
= 31.6kΩ
5.5
SET
Input Voltage (V)
Input Voltage (V)
3.3
= 8.06kΩ Ω )
5.5
V
BAT
3.5
6.0
(V)
6
AAT3681A
3.7
6.5
6.5
3.9
7.0
7
4.1
4.3
7.5
7.5
5