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AAT3143 Datasheet(PDF) 5 Page - Advanced Analogic Technologies

Part No. AAT3143
Description  High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications
Download  11 Pages
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT3143 Datasheet(HTML) 5 Page - Advanced Analogic Technologies

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Typical Characteristics
VIN = 3.5V, CIN = CCP = C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
LED Turn-On Delay
(PWM Frequency = 5kHz)
Time (1µs/div)
VEN
(2V/div)
VLED
(2V/div)
ILED
(10mA/div)
LED Turn-On Delay
(PWM Frequency = 500Hz)
Time (5µs/div)
VEN
(2V/div)
VLED
(2V/div)
ILED
(10mA/div)
Turn-On to 2X Mode
(VIN = 2.7V)
Time (50µs/div)
VEN
(1V/div)
VCP
(2V/div)
VLED
(2V/div)
IIN
(50mA/div)
Turn-On to 1.5X Mode
(VIN = 3.5V)
Time (50µs/div)
VEN
(1V/div)
VCP
(2V/div)
VLED
(2V/div)
IIN
(50mA/div)
Turn-On to 1X Mode
(VIN = 4.2V)
Time (50µs/div)
VEN
(1V/div)
VCP
(2V/div)
VLED
(2V/div)
IIN
(100mA/div)
Efficiency
(100% Duty Cycle, 4x20mA/channel)
Input Voltage (V)
30
40
50
60
70
80
90
100
2.7 2.8 2.9 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
AAT3143
High Efficiency 1X/1.5X/2X Charge Pump with
PWM Control for White LED Applications
3143.2006.05.1.0
5


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