I am running a LTSpice simulation using in-built LT3999 macro model test fixture available. The test fixture is designed for a 12V input, 12V output, 0.4A load which seems to be working well.
However, when the load is changed to 1kohm and Rdc set…
It is recommended to use a snubber in this case. Too much of negative voltage might affect the IC ground and its internal logic.
I do not think that will damage the part. However, this is not tested and not guaranteed.
These parts are not order-able from those major distribution websites like digikey or mouser. However, they are order-able and sample-able from Coilcraft and Wurth. Please contact Daniel Blair <firstname.lastname@example.org> from Coilcraft to get more…
Iam using the LT3999 in series with a push Pull Trafo from würth (750315371) to generate 12VDC isolated.
After a powerup, the first few seconds all works fine but then the output voltage begins to oscillate and as a result, the LT3999 is getting…
i want to use LT3999 to build 12V and 0.8A power supply. according to datasheet i have to use a COOPER BUSSMANN CTX02-19062 to adjust LT3999. but there isnt any transformer in this name around the internet. does anyone has information?
I am simulating the LT3999 with : Vin = 13V, Rt = 35k, Rdc = open, Txfr=200uH n=1:1. The problem is that the output voltage won't ramp to its final value unless I add an output inductor after the output diodes. Why is it required?
In the LT3999 datasheet below equations given.
1) The quiescent current and switch drive power dissipation: PVIN = VINISW •DC30+4mA where ISW is the average switch current.2) The conducting power dissipation of the switches during on state…
I have been built a push-pull converter with LT3999 and Coilcraft's PA6384-ALD. I would like to have cca. 10.5V output (nothing special just two diodes, 2uF caps on the secondary side with 10k load) while having 8-34V on the input. Maybe i am…
In the link: www.analog.com/.../high-frequency-push-pull-dc-dc-converter.html, equation 14 and equation 15. They both have a factor "Ts/4". I wonder how the figure '4' come from? Thanks.