Hi Florian,
You can refer to the article ( http://www.ti.com/lit/an/slyt309/slyt309.pdf ) to design the external components for a SEPIC converter.
The max conversion ratio is limited by the max duty cycle. LM5022 has an typical 95% max duty cylce…
Hello,
SEPIC converters can be very complicated to design and parasitics can drastically change the performance of the converter. That being said PMP7768 would be a good starting point for this application. HEre is an app note that goes through the…
Hello,
The LM2842 SHDN pin's current limit cannot guarantee accuracy or drift during steady state. I would not recommend this configuration.
For constant current applications, one option is to use a wide input converter with an LED driver as shown…
Hi Garret,
problem is with soft start - when boost device is enabled and starts switching.
LM3481 is out of calculation since it have 85% DC and LM5022 is having Vin=6V when I use Li-Po battery. :-)
Anyway, I will try with TPS55340 and go for 38V…
Hi Gerrit,
Thanks for your interest in UCC2897A. The recommended max voltage of the VIN pin on UCC2897A is 110V with an absolute maximum rating of 120V. If you can clamp Vin externally, yes you can use this device for your application.
You could…
Other Parts Discussed in Thread: LM5022 , LM5122 I'm trying to simulate a white LED supply circuit with Webench. I'm shooting for 24V to 55V @ 5.6A output max. So far so good but Webench starts complaining LM5022 is limited to 15A..
As far as I can…
Hi Massoud,
You have identified the correct components to make the desired changes. Adjusting the output voltage from 21V to 19V should not cause any issue. Going from 80kHz to 60KHz will cause the primary peak current to increase. You can check this…
Dear John Tucker, Dear Anthony Fagnani,
May I ask add question? My Customer use LM3495 and LM5022.
TPS54360 same conditions use. (280kHz ± 10kHz at an external clock.)
In this case, LM3495 and LM5022 is it possible synchronization？
If synchronization…
