Mike,
I agree with Bernd.
Attached is a blog which has a bit more detail on the on the level shifter. The values shown should work in most instances.
Power Tips Synchronize your SEPIC.pdf
Hi, Jennifer
1. C3 and R2 forms the RC snubber which is to reduce ring on SW1/2 node.
I attach a file for your reference.
2. C6 is Comp, you can use the Equation10 to calculate it.
C7 and C8 is to filter noise and reduce the gain beyond the…
HI Carlos,
no load is Ok, a small load (e.g. 0.5A) would be better.
The attached file with extension CSPcbDoc is a CircuitMaker file but i could import it into Altium.
I first point I could see is that you are using Thermals to connect Via and through…
Hello Vinaya,
Thanks for your interest in TI FETs. Please see the blog at the link below for a more detailed explanation how TI specs maximum continuous current for our FETs. The package limited current is self-explanatory and the other two ratings…
Hi Sumayyah,
unfortunately there are severuel potential issues within your layout:
- first you are using thermals to connect the components within the power stage. This makes soldering easier but adds a lot of inductance and this is very bad within…
Hi,
The files are not accessible.
Please visit https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/874557/faq-bq25890-faq-bq2589x-schematic-review-and-pcb-layout-design-tips for BQ2589X Schematic Checklist and…
Hi Zhang,
not sure about the spec for this power supply.
With using the info i have found in the webench.pdf:
VinMin = 24.0V VinMax = 30.0V Vout = 48.0V Iout = 20.0A
It should be able to handle an output power of 960W.
If not an active cooling…
Hi,
Please refer to https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1051774/faq-bq25883-faq-bq2588x-schematic-review-and-layout-tips-for-bq25882-bq25883-bq25886-and-bq25887 for the schematic review and layout…
Hi Rami,
It looks like the issue is primarily with your layut, as the schematic looks fine. I think the biggest takeaway at the moment is a lack of a ground plane and VIN/VOUT plane. I would refer to this blog post as guidance for reworking the layout…
