Hello,
most likely the current sharing between the strings will be getting bad/worse, as the LT3795 only delivers 'one' common current, the distribution within the parallel strings depends mainly on the final Vf values of the LEDs and their similarity…
Hi everyone:
Related with the LT3795 Demo Circuit on your website. I running the simulation with original input voltaje and everything is OK.
The situation is when I change the input voltaje to 45 Vdc or more, the LT3795 goes down. I have checked the…
Hi Engineer zone:
I have designed a led controller using the LT3795. the input voltaje is between Vin= 8 and 80 volts. The output voltaje is in 87V@400mA. Is very similar to the example that you have on the webpage. In fact I am using 4 layers, the internal…
Hi,
I am using the LT3795 to drive 19 LEDs from 28V. Under certain conditions upon power cycle I observe the design not startup and start switching, and Vref is pulled down, Intvcc is good @7V however Vref is low. When measured with power removed it…
Dear All:
I need LTC7840 demo board P/N: DC2744A & LT3795 demo board P/N:DC1827A LTPowerCAD Files to provide to me ,another LT3795 demo board have "buck only solution" design reference to customer refer.?? Ex:Vin:100V To Vout:70V/20A for…
你好,
LT3795 Demo Board DC1827A預設是Boost mode,
Demo manual有提到可以改成Buck mode.
請問有Buck mode的線路及BOM嗎?
DC1827A Buck mode的Vin range和Vout range是多少呢?
謝謝.
It is difficult to make DC1827A for the LT3795 controller perform well during emi testing - I apologize for that. I chose the DC1827A schematic in 2011 and at that time I was just starting to learn how to get boards to pass the CISPR25 standard that seemed…
Good morning,
In the LT3795 IC, and other Linear Led Controller, When i keep Down (0 V) The pin 24 (EN/UVLO) For disable the switching output (LED 0V LED Off) The INTVcc (Internal Vcc) and the Vref Goes to zero Voltage!! is Normal ??
I think that with…
Dear all,
I used the LT3795 for dimming a LED to light up a work of art. Unfortunately there are stripes on my Video if I record this with my mobile.
The Key Facts are:
Schematic taken from the Datasheet” Short-Circuit Robust Boost LED Driver with Input…
The common mode ranges of ISP/ISN for the LT3756 and LT3795 respectively are 2.9V-100V and 0V-110V as I show in the image below from the datasheets. You can put RSENSE on the bottom when you use the LT3795. That way, you can increase your output voltage…
