MAX16809EVKIT+ Maxim Integrated Products, MAX16809EVKIT+ Datasheet
MAX16809EVKIT+
Specifications of MAX16809EVKIT+
Related parts for MAX16809EVKIT+
MAX16809EVKIT+ Summary of contents
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... Output-Voltage-Spike Protection for Inductive- Output Lines ♦ Proven PCB Layout Ordering Information PART TEMP RANGE MAX16809EVKIT+ 0°C to +70°C* + Denotes a lead-free and RoHS-compliant EV kit. * This limited temperature range applies to the EV kit PCB only. The MAX16809 IC temperature range is -40°C to +125°C. † ...
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MAX16809 Evaluation Kit DESIGNATION QTY DESCRIPTION 10nF ±10%, 50V X7R capacitor (0603) C34 1 KEMET C0603C103K5RACTU Murata GRM188R71H103KA01D C35 0 Not installed, capacitor 33V zener diode (SOD323 Diodes Inc. MMSZ5257BS-7 1A, 40V S chottky ...
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Recommended Equipment • One 16V, 5A adjustable power supply • One 5V power supply • 16 LED strings with a total forward voltage ≤ 32V • One multimeter • One PWM signal generator (optional) The MAX16809 EV kit is fully ...
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MAX16809 Evaluation Kit As the boost converter is operated in CCM, only part of the stored energy in the inductor is discharged to VLED. The advantages of CCM include reduced input and out- put filtering, reduced EMI due to lower ...
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The saturation current limit of the selected inductor (IL ) should be greater than the value given by the SAT equation below. Selecting an inductor with 10% higher IL rating is a good choice: SAT = × ...
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MAX16809 Evaluation Kit Slope Compensation When the boost converter operates in CCM with more than 50% duty cycle, subharmonic oscillations occur if slope compensation is not implemented. Subharmonic oscillations do not allow the PWM duty cycle to settle to a ...
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COMP R5 C28 180kΩ 10pF C29 220pF FB VBIAS C30 0.1μF PWM Figure 1. Inverting PWM Drive Circuit Output Current Setting The amplitude of the output sink currents for all 16 channels is set to the same value by the ...
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MAX16809 Evaluation Kit calculate the value get the required LED sup- ply voltage during PWM off time: ( × R2 2 VLED - 2.5 OFF where 2.5V is the feedback-reference voltage, 0.4V is ...
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The DC gain of the power circuit is expressed as the change in the output voltage, with respect to the change in error-amplifier output voltage. As the boost converter in the MAX16809 EV kit drives a constant- current load, the ...
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MAX16809 Evaluation Kit The MAX16809 EV kit uses electrolytic capacitors at the output for filtering, so the zero produced by the ESR of the capacitors can be low enough to be within or near the crossover frequency. This zero should ...
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Connect the power ground plane for the constant- current LED driver part of the circuit to the boost- converter output filter capacitor negative terminal. Power Dissipation The MAX16809 dissipates power during normal operat- ing conditions. The heat transferred to ...
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MAX16809 Evaluation Kit Figure 2. MAX16809 EV Kit Schematic 12 ______________________________________________________________________________________ ...
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Figure 3. MAX16809 EV Kit Component Placement Guide—Component Side ______________________________________________________________________________________ MAX16809 Evaluation Kit 13 ...
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MAX16809 Evaluation Kit Figure 4. MAX16809 EV Kit PCB Layout—Component Side 14 ______________________________________________________________________________________ ...
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Figure 5. MAX16809 EV Kit PCB Layout—Inner Layer 1 ______________________________________________________________________________________ MAX16809 Evaluation Kit 15 ...
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MAX16809 Evaluation Kit Figure 6. MAX16809 EV Kit PCB Layout—Inner Layer 2 16 ______________________________________________________________________________________ ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2007 Maxim Integrated Products MAX16809 Evaluation Kit is a registered trademark of Maxim Integrated Products, Inc ...