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Dear Support/Expert I have a question about LED2001, is it practical to apply a relay to switch the LED off, but keep the DIM enabled.  as in the schematic. if K21 is off, it will cut the current off of the output, but the DIM pin of the LED2001 is s...
Dear Support and Expert, We are using LED2001 to drive a LED, 2V@4A. the 6 boards come back. 4 work good but 2 no output voltage. we are using QFPN package, is there a way to check the pins are properly soldered beside take it out and reinstall? 2. i...
I have this chip on a board LD2985BM50R. how can I verify the mark on top of the chip is marching the chip? it is really funny that the mark wasn't mentioned in the data sheet. Thank you,David
I am an Orcad user, and there is a MB1397B Altium schematic design file with the board documents, for an Orcad user, is it possible to provide an ASCII format of Altium. :astonished_face: David Sun
Dear Expert, from the bottom side, seems to me that Pin4, thermal pad, and Pin 8 all connected to Gnd. but from the top layer, there is a gap between the thermal pad and pin 8. if my observation is true, why not just connect the thermal pad copper a...
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