AAT3143ITP-T1 데이터 시트보기 (PDF) - Advanced Analogic Technologies
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AAT3143ITP-T1
Advanced Analogic Technologies
AAT3143ITP-T1 Datasheet PDF : 10 Pages
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PRODUCT DATASHEET
AAT3143
ChargePumpM High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications
Typical Characteristics
VIN = 3.5V, CIN = CCP = C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Efficiency
(100% Duty Cycle, 4x20mA/channel)
100
90
80
70
60
50
40
30
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
VEN
(1V/div)
VCP
(2V/div)
VLED
(2V/div)
IIN
(100mA/div)
Input Voltage (V)
Turn-On to 1X Mode
(VIN = 4.2V)
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 2X Mode
(VIN = 2.7V)
Time (50µs/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)
LED Turn-On Delay
(PWM Frequency = 5kHz)
Time (1µs/div)
3143.2009.06.1.1
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