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DC1327B - LT3599EFE Demo Board | 4-Channel Boost LED Driver, 8V ≤ PVIN ≤ 16V, VLED up to 44V @ 80mA

Demonstration circuit 1327B is a 4-Channel 80mA LED Driver with +/-1.5% Current Matching featuring the LT3599. The LT3599 is a step-up DC/DC converter designed to drive up to 4-strings of LEDs at up to 120mA per string, and with an output voltage up to 44V. The LED strings are connected to internal current sources where the current level is set with an external resistor. Each string can have up to 10 white LEDs. Paralleling of strings is allowed. 

The LT3599 runs from a 3.1V to 5.5V power supply, and the step-up converter is powered from an 8V to 16 voltage supply, though higher voltages up to 40V may be acceptable depending on the circuit requirements.  

DC1327B - 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.