AAT3140 Datasheet, PDF (9/16 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

AAT3140
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
(4x10mA)
Input Current vs. Input Voltage
(4x30mA)
90
80
70
V_DIODE = 3.4V
60
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
300
250
200
V_DIODE = 3.4V
150
100
50
V_DIODE = 3.0V
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)
3140.2007.03.1.3
9