LT3466EDD-1#TRPBF Linear Technology, LT3466EDD-1#TRPBF Datasheet
LT3466EDD-1#TRPBF
Specifications of LT3466EDD-1#TRPBF
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LT3466EDD-1#TRPBF Summary of contents
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... Protection features include out- put overvoltage protection and internal soft-start. Wide input supply range allows operation from 2.7V to 24V. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 1µF 33µH ...
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... SW1 I = 300mA SW2 V = 10V SW1 V = 10V SW2 CTRL1 (Note 3) CTRL2 U W ORDER PART TOP VIEW NUMBER 1 10 FB1 2 9 CTRL1 LT3466EDD CTRL2 5 6 FB2 DD PART MARKING DD PACKAGE = 43°C/W, θ LBRX = 3°C http://www.linear.com/leadfree/ MIN TYP MAX 2.7 ● 192 200 ● ...
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ELECTRICAL CHARACTERISTICS range, otherwise specifications are at T PARAMETER V Overvoltage Threshold OUT1 V Overvoltage Threshold OUT2 Schottky 1 Forward Drop Schottky 2 Forward Drop Schottky 1 Reverse Leakage Schottky 2 Reverse Leakage Soft-Start Time (Switcher 1) Soft-Start Time (Switcher ...
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LT3466 TYPICAL PERFOR A CE CHARACTERISTICS Switch Current Limit vs Duty Cycle 500 T = –50° 25° 450 400 T = 85°C A 350 300 250 200 150 100 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Oscillator Frequency vs Temperature 1100 48.7k T 1000 900 800 –50 –25 0 TEMPERATURE (°C) Schottky Forward Voltage Drop 400 350 300 250 200 150 100 50 ...
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LT3466 CTIO S V (Pin 1): Output of Converter 1. This pin is connected OUT1 to the cathode of the internal Schottky diode. Connect an output capacitor from this pin to ground. SW1 (Pin 2): ...
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W BLOCK DIAGRA LT3466-1 34661f 7 ...
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LT3466-1 U OPERATIO Main Control Loop The LT3466-1 uses a constant frequency, current mode control scheme to provide excellent line and load regula- tion. It incorporates two similar, but fully independent PWM converters. Operation can be best understood by referring ...
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U OPERATIO In the event one of the converters has an output open-circuit, its output voltage will be clamped at 39.5V. However, the other converter will continue functioning properly. The photo in Figure 4b shows circuit operation with converter 1 ...
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LT3466 APPLICATIO S I FOR ATIO DUTY CYCLE The duty cycle for a step-up converter is given by – OUT – V OUT D CESAT where: V ...
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U U APPLICATIO S I FOR ATIO The inductor current ripple (∆I ), neglecting the drop L across the Schottky diode and the switch, is given • V – MIN ( ) OUT MAX ...
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LT3466 APPLICATIO S I FOR ATIO Typically peak inrush current will be less than the value calculated above. This is due to the fact that the DC resistance in the inductor provides some damping result- ing in a ...
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U U APPLICATIO S I FOR ATIO Figure 9 shows the feedback voltage variation versus the control voltage. As seen in Figure 9, the linearity of the graph allows the feedback voltage to be set accurately via the control voltage. ...
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LT3466 APPLICATIO S I FOR ATIO The V and V values for the transistor Q1 can CE(SAT) BE(SAT) be obtained from the Philips BC807 data sheet – – ...
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U TYPICAL APPLICATIO S Li-Ion Powered 4 White LEDs Driver and 12V Boost Converter 1µF L1 15µH 4 LEDs SW1 V SW2 OUT1 OUT2 C OUT1 0.47µF LT3466-1 FB1 FB2 R R ...
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LT3466-1 U TYPICAL APPLICATIO S Li-Ion Powered Driver for 6 White LEDs and OLED with Output Disconnect 6 LEDs V OUT2 20V/DIV I L2 200mA/DIV CTRL2 5V/DIV V = 3.6V 2ms/DIV 16V OUT2 ...
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U TYPICAL APPLICATIO S Li-Ion Powered Driver for 6 White LEDs and OLED with Output Disconnect 6 LEDs C : TAIYO YUDEN JMK107BJ105 IN C OUT1 C OUT2 L1, L2: 33µH TOKO D52LC Q1: SILICONIX TPO610 V OUT2 20V/DIV I ...
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LT3466-1 U TYPICAL APPLICATIO S Li-Ion to 10 White LEDs and LCD Bias (±8V) with Output Disconnect 10 LEDs R 16.5Ω TAIYO YUDEN JMK107BJ105 IN C OUT1 C OUT2 C1, C2: TAIYO YUDEN UMK212BJ104 D1, D2: PHILIPS BAT54S ...
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... PIN 1 TOP MARK (SEE NOTE 6) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 10-Lead Plastic DFN (3mm × ...
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... Dual Constant Current, 2MHz High Efficiency White LED Boost Regulator with Integrated Schottky Diode LT3479 3A, Full Featured DC/DC Converter with Soft-Start and Inrush Current Protection ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...