AAT3783_12 Datasheet, PDF (6/20 Pages) Skyworks Solutions Inc. – 1-A Linear Li-Ion/Polymer Battery Charger with 28V Over-Voltage Protection

DATA SHEET
AAT3783
1-A Linear Li-Ion/Polymer Battery Charger with 28V Over-Voltage Protection
Typical Characteristics
Constant Charging Current
vs. Set Resistor Values
10000
1000
100
10
1
1
10
100
1000
R_SET (mA)
Battery Charging Current
vs. Battery Voltage
1200
1000
800
R_SET = 1.62kΩ
R_SET = 2kΩ
600
R_SET = 3.24kΩ
400
R_SET = 8.06kΩ
200
0
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
Battery Voltage (V)
End of Charge Regulation Tolerance vs. Input Voltage
(V_{BAT_EOC} = 4.2V)
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
4.5
5
5.5
6
6.5
7
7.5
Input Voltage (V)
End of Charge Voltage vs. Temperature
4.23
4.22
4.21
4.20
4.19
4.18
4.17
-40
-15
10
35
60
85
Temperature (°C)
Battery Recharge Voltage Threshold
vs. Temperature
4.16
4.14
4.12
4.1
4.08
4.06
4.04
-40
-15
10
35
60
85
Temperature (°C)
Preconditioning Charge Current
vs. Input Voltage
140
120
R_SET = 1.62kΩ
100
80
R_SET = 2kΩ
60
40 _{RSET = 3.24kΩ}
20
R_SET = 8.06kΩ
0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
6
201903B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012