Demonstration circuit 1319B is a high voltage and high current LED driver controller feature the LT3756-1 (DC1319B-B) or the LT3756-2 (DC1319B-A). The device's VIN pin input voltage and LED output voltage can be as high as 100V; however, the demo board's open-LED overvoltage protection limits the input voltage to 80V and limits the output to approximately 92V if the LED string is opened.The demonstration circuit is assembled as a boost topology from 8V to 80V input and up to 80V LED output at 0.5A and features an open-LED status pin (DC1319B-A) or a sync input pin (DC1319B-B). DC1319B also features PWM dimming, analog dimming, shutdown, and open-LED overvoltage protection.
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