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LT3486 Datasheet(PDF) 20 Page - Linear Technology |
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LT3486 Datasheet(HTML) 20 Page - Linear Technology |
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20 / 20 page  LT3486 20 3486f Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2005 LT/TP 0705 500 • PRINTED IN USA TYPICAL APPLICATIO RELATED PARTS 12V to 8/8 White LEDs LED Current and Efficiency vs PWM Duty Cycle 3486 TA10a 12V (TYP) 9V TO 15V COUT1 2.2 µF COUT2 2.2 µF 100mA PWM FREQ 1kHz RFB1 2 Ω RFB2 2 Ω 100mA OFF ON D1 Q1 100k 100k 3.65k 3.65k 21.5k Q2 5V D2 CIN 10 µF C1 1 µF L1 10 µH L2 10 µH VIN VIN DIMMING INPUT 1 DIMMING INPUT 2 2.2nF 22pF 2.2nF LUXEON LEDs LXCL-PWF1 LUXEON LEDs LXCL-PWF1 COUT1, COUT2: 35V, X5R OR X7R CIN: 25V, X5R OR X7R C1: 10V, X5R OR X7R CREF: 6.3V, X5R OR X7R CREF 0.1 µF VC1 VC2 RT SW1 SW2 VIN LT3486 OVP2 CTRL2 REF PWM2 FB2 OVP1 CTRL1 SHDN PWM1 FB1 PWM FREQ 1kHz D1, D2: ZETEX ZLLS1000 L1, L2: TOKO D53LC (TYPE A) Q1, Q2: FAIRCHILD FDN5630 PWM DUTY CYCLE (%) 0 60 65 70 75 80 85 90 0 20 40 60 80 100 120 20 40 60 80 3486 TA10b 100 EFFICIENCY LED CURRENT VIN = 12V 8/8 LEDs PART NUMBER DESCRIPTION COMMENTS LT1618 Constant Current, Constant Voltage 1.24MHz, High Efficiency Up to 16 White LEDs, VIN: 1.6V to 18V, VOUT(MAX) = 34V, Boost Regulator IQ = 1.8mA, ISD < 1µA, MS Package LT1932 Constant Current, 1.2MHz, High Efficiency White LED Boost Up to 8 White LEDs, VIN: 1V to 10V, VOUT(MAX) = 34V, Regulator IQ = 1.2mA, ISD < 1µA, ThinSOT TM Package LT1937 Constant Current, 1.2MHz, High Efficiency White LED Boost Up to 4 White LEDs, VIN: 2.5V to 10V, VOUT(MAX) = 34V, Regulator IQ = 1.9mA, ISD < 1µA, ThinSOT, SC70 Packages LTC3200 Low Noise, 2MHz, Regulated Charge Pump White LED Driver Up to 6 White LEDs, VIN: 2.7V to 4.5V, IQ = 8mA, ISD < 1µA, MS Package LTC3200-5 Low Noise, 2MHz, Regulated Charge Pump White LED Driver Up to 6 White LEDs, VIN: 2.7V to 4.5V, IQ = 8mA, ISD < 1µA, ThinSOT Package LTC3201 Low Noise, 1.7MHz, Regulated Charge Pump White LED Driver Up to 6 White LEDs, VIN: 2.7V to 4.5V, IQ = 6.5mA, ISD < 1µA, MS Package LTC3202 Low Noise, 1.5MHz, Regulated Charge Pump White LED Driver Up to 8 White LEDs, VIN: 2.7V to 4.5V, IQ = 5mA, ISD < 1µA, MS Package LTC3205 High Efficiency, Multidisplay LED Controller Up to 4 (Main), 2 (Sub) and RGB, VIN: 2.8V to 4.5V, IQ = 50µA, ISD < 1µA, QFN-24 Package LT3465/LT3465A Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED Up to Six White LEDs, VIN: 2.7V to 16V, VOUT(MAX) = 34V, Boost Regulator with Integrated Schottky Diode IQ = 1.9mA, ISD < 1µA, ThinSOT Package LT3466 Dual Full Function White LED Boost Regulator with Integrated Drives Up to 20 LEDs, VIN: 2.7V to 24V, VOUT(MAX) = 40V, Schottky Diode IQ = 5mA, ISD < 16µA, DFN Package |
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