AAT3142_07 Datasheet, PDF (9/16 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

AAT3142
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Typical Characteristics
V_IN = 3.5V, C_IN = C_CP = C₁ = C₂ = 1µF, T_A = 25°C, unless otherwise noted.
Input Current vs. Input Voltage
(3x10mA)
Input Current vs. Input Voltage
(3x30mA)
70
60
V_DIODE = 3.4V
50
40
30
20
V_DIODE = 3.0V
10
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
200
180
160
V_DIODE = 3.4V
140
120
100
80
60
40
V_DIODE = 3.0V
20
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
Diode Current vs. Input Voltage
(30mA, 15mA Settings)
40
35
V_DIODE = 3.4V
30
25
20
V_DIODE = 3.4V
15
10
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
V_IH and V_IL vs. V_IN
0.850
0.825
0.800
0.775
0.750
V_IH
0.725
V_IL
0.700
0.675
0.650
0.625
0.600
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
3142.2007.03.1.2
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