Hello Bryan,
Check out the link to a recent TI SEPIC design. In the design guide section there are a lot of good SEPIC equations, including for the coupling capacitor value. I hope that helps!
Regards,
Clint
Hello Kuan,
That device is very stable, I don't think you need to consider Rsns in any way other than for setting the current. It will work fine. By the way, for ADAS systems you might want to look at PMP15027. But the LM3423 should also work fine.…
Hello Kirti,
Ideally it would be able to with a 2.8A current limit. However, the current limit minimum guaranteed in the datasheet can be as low as 2.1A. The peak switch current in a SEPIC is the sum of the two inductor peak currents, so any devices…
Hello Hope,
I will check on this since I think one has been in development and I will let you know. Otherwise if it helps you can look at PMP15027 which is a SEPIC design using the TPS92691 (the equations will be the same). All of the main equations…
Hello Kuo,
There isn't a design calculator for the 690 SEPIC, but the TPS92691 is very similar and has a SEPIC design tool that would work for the 690. There is also a TI Design for a 691 SEPIC that has the equations as well (PMP15027) that would be…
