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DC1482A - LT3519EMS Demo Board | Boost LED Driver with Integrated Schottky Diode, 6V ≤ VIN ≤ 30V, VLED = 38V @ 100mA

Demonstration Circuit 1482 is a fully integrated, multitopology LED driver with a 45V, 750mA power switch featuring the LT®3519. The board is optimized to drive a 100mA LED string from a 6V to 30V input power supply using a boost topology.The DC1482 has overvoltage protection at just above 40V if the LEDs are open or not properly attached to the terminals on the PCB.

The high input voltage range, integrated low-side power switch and catch diode, integrated compensation, low voltage floating current sense amplifier, high pwm dimming ratio, overvoltage protection, shutdown control pin, analog LED current dimming control, and fixed 400kHz switching frequency make the LT3519 an extremely versatile and powerful LED driving IC. 

DC1482A - Schematic

 


Software

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, you can instead run the simulation by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTspice and open the demonstration circuit by selecting 'Open' from the 'File' menu

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.