AAT2806 Datasheet, PDF (6/16 Pages) Advanced Analogic Technologies – Dual High Efficiency Charge Pump for White LED AND Flash Applications

AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
Typical Characteristics– Flash Driver Charge Pump Section
Output Ripple Voltage vs. Time
(I_OUT = 50mA @ V_IN = 3.5V)
Output Ripple Voltage vs. Time
(I_OUT = 100mA @ V_IN = 3.5V)
V_IN
(10mV/div)
V_IN
(10mV/div)
V_OUT
(10mV/div)
V_OUT
(20mV/div)
I_IN
(10mA/div)
I_IN
(10mA/div)
Time (500ns/div)
Time (500ns/div)
Supply Current vs. Supply Voltage
3.00
2.75
I_OUT = 0μA
C₃ = 1μF
2.50 _{VEN_FL = VIN}
2.25
2.00
1.75
1.50
1.25
1.00
2.5
3.0
3.5
4.0
4.5
5.0
Supply Voltage (V)
Oscillator Frequency vs. Supply Voltage
1.30
1.25
+25°C
1.20
+85°C
1.15
-40°C
1.10
2.7
3.2
3.7
4.2
4.7
Supply Voltage (V)
6
2806.2006.04.1.8