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| AAT1401 Datasheet, PDF (8/19 Pages) List of Unclassifed Manufacturers – FOUR-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY | |||
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DATA SHEET
AAT1401
Serial LED Driver with Filtered PWM and 32-Step S2C Dimming Control
Typical Characteristics
VLX
(20V/div)
0
IINDUCTOR
(500mA/div)
0
VOUT (AC)
(500mV/div) 0
ILED
(20mA/div)
0
Operation Waveform
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF,
CCOMP = 56nF, RSET = 10Kâ¦, 6 WLEDs)
Time (1µs/div)
Operation Waveform
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF,CCOMP = 56nF,
RSET = 10Kâ¦, PWM = 50kHz, 50% Duty Cycle, 6 WLEDs)
VLX
(20V/div)
0
IINDUCTOR
(500mA/div)
VOUT (AC) 0
(50mV/div) 0
ILED
(20mA/div) 0
Time (1µs/div)
LED Current Transient
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF, CCOMP = 56nF, RSET = 10Kâ¦,
PWM = 10KHz, Duty Cycle = 100% to 50%, 31mA to 15mA)
PWM
(5V/div) 0
VOUT
(20V/div)
IIN 0
(200mA/div)
ILED 0
(20mA/div)
0
Time (1ms/div)
LED Current Transition
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF, CCOMP = 56nF, RSET = 10Kâ¦,
PWM = 10KHz, Duty Cycle = 50% to 100%, 31mA to 15mA)
PWM
(5V/div) 0
VOUT
(10V/div)
0
IIN
(100mA/div)
0
ILED
(20mA/div)
0
Time (1ms/div)
LED Current Transient by S2Cwire
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF, CCOMP = 56nF,
RSET = 10Kâ¦, S2Cwire Data 1 to 16)
EN/SET
(5V/div) 0
VOUT
(20V/div)
IIN 0
(200mA/div)
ILED 0
(20mA/div)
0
Time (1ms/div)
LED Current Transient by S2Cwire
(VIN = 3.6V; CIN = 4.7μF, COUT = 0.1μF, CCOMP = 56nF,
RSET = 10Kâ¦, S2Cwire Data 16 to 1)
EN/SET
(5V/div) 0
VOUT
(20V/div)
IIN 0
(200mA/div)
ILED 0
(20mA/div)
0
Time (1ms/div)
Skyworks Solutions, Inc. ⢠Phone [781] 376-3000 ⢠Fax [781] 376-3100 ⢠sales@skyworksinc.com ⢠www.skyworksinc.com
8
202113A ⢠Skyworks Proprietary Information ⢠Products and Product Information are Subject to Change Without Notice. ⢠June 27, 2012
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