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| AAT2801 Datasheet, PDF (7/20 Pages) Advanced Analogic Technologies – Multi-Mode Charge Pump for White LED Backlight and Flash Applications | |||
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AAT2801
Multi-Mode Charge Pump for
White LED Backlight and Flash Applications
Typical CharacteristicsâWhite LED Backlight Driver Section
VIN = 3.5V, CIN = 2.2µF, CCP = C1 = C2 = 1.0µF; TA = 25°C, unless otherwise noted.
Charge Pump to Load Switch
(1.5X Mode; 4x19mA Load)
Charge Pump to Load Switch
(1.5X Mode; 4x30mA Load)
VIN
(500mV/div)
VCP
(1V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
VIN
(500mV/div)
VCP
(1V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
Time (5ms/div)
Time (5ms/div)
Charge Pump to Load Switch
(2X Mode; 4x19mA Load)
VIN
(500mV/div)
VCP
(1V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
Time (5ms/div)
Charge Pump to Load Switch
(2X Mode; 4x30mA Load)
VIN
(500mV/div)
VCP
(1V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
Time (5ms/div)
Load Switch to Charge Pump
(1.5X Mode; 4x19mA Load)
VIN
(1V/div)
VCP
(4V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
Time (2ms/div)
Load Switch to Charge Pump
(1.5X Mode; 4x30mA Load)
VIN
(1V/div)
VCP
(4V/div)
VDIODE
(500mV/div)
IIN
(50mA/div)
Time (2ms/div)
2801.2006.04.1.3
7
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