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| AAT2848 Datasheet, PDF (7/19 Pages) Advanced Analogic Technologies – High-Current Charge Pump For Backlight Display and Flash Applications | |||
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ChargePumpTM
PRODUCT DATASHEET
AAT2848
High-Current Charge Pump For Backlight Display and Flash Applications
Typical Characteristics
Turn-On to 2x Mode Flash
(VIN = 2.8V; 151mA/Channel)
VEN/SET
(2V/div) 0V
VOUT
(2V/div) 0V
VFLX 0V
(2V/div)
IIN 0A
(400mA/div)
Turn-On to 1.5x Mode Flash
(VIN = 3.6V; 151mA/Channel)
VEN/SET
(2V/div) 0V
VOUT
(2V/div) 0V
VFLX 0V
(2V/div)
IIN 0A
(400mA/div)
Time (100μs/div)
Time (100μs/div)
Turn-Off from 1.5x Mode Backlight
(VIN = 3.6V; 30mA/Channel; Fade-In/Out Disabled)
VEN/SET
(2V/div)
0V
VF
(1V/div)
0V
IIN
(200mA/div) 0A
Time (100μs/div)
Turn-Off from 1.5x Mode Flash
(VIN = 3.6V; 151mA/Channel)
VEN/SET
(2V/div)
0V
VF
(1V/div)
0V
IIN
(400mA/div) 0A
Time (100μs/div)
Turn-Off from 2x Mode Flash
(VIN = 2.8V; 151mA/Channel)
VEN/SET
(2V/div)
0V
VF
(1V/div)
0V
IIN
(400mA/div) 0A
Time (100μs/div)
Backlight Operating Characteristics
(VIN = 3.6V; 1.5x Mode; 30mA/Channel; AC Coupled)
VIN
(20mV/div)
VOUT
(50mV/div)
VBLX
(50mV/div)
Time (1μs/div)
2848.2008.05.1.0
www.analogictech.com
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