AAT3783_12 Datasheet, PDF (8/20 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
Temperature Sense Output Current
vs. Temperature
78
76
74
72
70
68
-40
-15
10
35
60
85
Temperature (°C)
CT Pin Capacitance vs. Counter Timeout
1.0
0.9
0.8
0.7
Preconditioning Timeout
0.6
0.5
0.4
0.3
Preconditioning + Constant Current
0.2
Timeout or Constant Voltage Timeout
0.1
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Time (h)
Operating Current vs. I_SET Resistor
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1
Constant current mode
Preconditioning mode
10
100
R_SET (kΩ)
1000
Input Low Threshold vs. Input Voltage
1.6
1.4
1.2
1.0 _-40°C
0.8
0.6 ^85°C
25°C
0.4
4
4.5
5
5.5
6
6.5
7
7.5
Input Voltage (V)
Termination Current to Constant Current Ratio
vs. Termination Resistance
50
40
30
20
10
0
0
10
20
30
40
50
60
I_TERM Resistance (kΩ)
Input High Threshold vs. Input Voltage
1.6
1.4
1.2
1.0 ^-40°C
25°C
0.8
85°C
0.6
0.4
4
4.5
5
5.5
6
6.5
7
7.5
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
8
201903B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012