WEBENCH® Tools/LM5146-Q1: Frequency Selection issue in WEBENCH

Prasad Godage

Part Number: LM5146-Q1

Tool/software: WEBENCH® Design Tools

Hello,

I am trying to generate design in WEBENCH for LM5146-Q1. My voltage input range is 16V to 36V for output 12V 5A. As per datasheet I can set switching frequency from 100KHz to 1MHz. I had tried to set 1M Hz. But in WEBENCH, in simulation it is always showing 177.283KHz irrespective of manually entered frequency.

Please any body help me in this issue.

Thanks in advance.

Regards,

Prasad

over 6 years ago

0 Frank De Stasi over 6 years ago

TI__Guru 74185 points

I will move this to the Webench organization.
They should be able to help.

0 Gerold Dhanabalan - High Performance Radar over 6 years ago in reply to Frank De Stasi

TI__Genius 14455 points

Hi Prasad,
I am able to change the frequency to even 1MHz. Can you please confirm that you are selecting the "User Preferred Frequency" button on the left side before entering the new frequency and clicking "Redesign"?
If you are still facing issues, please share your design to my email g-dhanabalan@ti.com
Regards,
Gerold

0 Prasad Godage over 6 years ago in reply to Gerold Dhanabalan - High Performance Radar

Prodigy 20 points

Hello Gerold,

Thanks for help. I have re-entered parameter as suggested by you.

It is working fine as expected.

Regards,

Prasad

Power management

Power management forum

WEBENCH® Tools/LM5146-Q1: Frequency Selection issue in WEBENCH