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AAT2806_07 Datasheet, PDF (5/16 Pages) Advanced Analogic Technologies – Dual High Efficiency Charge Pump for White LED and Flash Applications | |||
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AAT2806
Dual High Efficiency Charge Pump
for White LED and Flash Applications
Typical Characteristicsâ Flash Driver Charge Pump Section
Output Voltage vs. Output Current
(VOUT_FL = 4.5V; EN_FL = VIN; EN/SET = GND)
4.60
4.56
4.52
3.6V
4.48
4.44
4.40
0.1
3.0V 3.3V
2.7V
1.0
10.0
100.0
Output Current (mA)
1000.0
Maximum Current Pulse vs. Supply Voltage
(VOUT_FL = 4.5V; EN_FL = VIN; EN/SET = GND)
450
One-shot pulse duration = 250ms
400 VOUT > 4.0V
350
300
250
200
150
100
50
0
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
Supply Voltage (V)
Load Response vs. Time
(50mA Load)
VOUT_FL
(10mV/div)
VIN = 3.5V
IOUT
(20mA/div)
Time (5ms/div)
Load Response vs. Time
(100mA Load)
VIN = 3.5V
VOUT_FL
(10mV/div)
IOUT
(50mA/div)
Time (5ms/div)
Output Ripple Voltage vs. Time
(IOUT = 50mA @ VIN = 3.5V)
VIN
(10mV/div)
VOUT
(10mV/div)
IIN
(10mA/div)
Time (500ns/div)
Output Ripple Voltage vs. Time
(IOUT = 100mA @ VIN = 3.5V)
VIN
(10mV/div)
VOUT
(20mV/div)
IIN
(10mA/div)
Time (500ns/div)
2806.2007.09.1.9
5
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