I finally got some new lm3410Y and a video. Unfortunately I can't tell if the part is no longer operational. I previously I was able to read 17.5V then it went down to 14.5 and then 4.6V. With these new parts the same thing happens I read 14.5V across the resistor and now I only read 4.6V as shown in the video. Is there a better way to test this? Should I try and make a PCB and forget the breadboard?
Video:
https://www.youtube.com/watch?v=KWL5mLMj0B0&feature=youtu.be
I am testing this using two 1K ohm resistors in parallel to get 500 ohms since ~20V/500 = 40mA.
The end goal is to power this via USB. Here is the display:
https://www.electro-tech-online.com/custompdfs/2013/08/NHD-43-480272EF-ATXL-T.pdf
Here is the datasheet for the lm3410:
https://www.electro-tech-online.com/custompdfs/2013/08/lm3410-2.pdf
I need 19.2V @40mA. So far I am unsuccessful. I'm not sure how to go about this and I could really use some help. Maybe I should use a different step up constant current regulator such as the FAN5333B? Thank you.
Video:
https://www.youtube.com/watch?v=KWL5mLMj0B0&feature=youtu.be
I am testing this using two 1K ohm resistors in parallel to get 500 ohms since ~20V/500 = 40mA.
The end goal is to power this via USB. Here is the display:
https://www.electro-tech-online.com/custompdfs/2013/08/NHD-43-480272EF-ATXL-T.pdf
Here is the datasheet for the lm3410:
https://www.electro-tech-online.com/custompdfs/2013/08/lm3410-2.pdf
I need 19.2V @40mA. So far I am unsuccessful. I'm not sure how to go about this and I could really use some help. Maybe I should use a different step up constant current regulator such as the FAN5333B? Thank you.
Last edited: