TPS92692-Q1: About TPS92692 input cold crank issues

Hello,

I am going to click resolved here and move your issue off of E2E since information here can be proprietary to your company.  I'll send you an email directly and we can work offline on this.

Thanks Tuan

Hi,

Please provide details to help us resolve this issue.

Hi,

I've sent an email to your listed email account with E2E.  Please check your email and response to my question and we will try to work thru the issue with you.

Thanks Tuan

Hi sir,

We not recive your email. Could you  help us sent again email for me? Thanks!

Hi,

Please check your email address listed with our E2E account and verify that is current.  That's the email address that I sent the information to.

I would need your full schematic...I did not see the PWM'ing FET on the schematic above along with some values.  The other question that I have is how did you calculate the power stage values like inductance, Ris, Rsense, and compensation values?

Thanks Tuan

Hi sir,

May our email has some problem, so pls refer to the following schematic for PWM and other RC values and full schematic need you provide email address.
In my schematic has no PWM FET and paired R20 15k, R22 3.3k implement 10-12% dimming.

The other question that I have is how did you calculate the power stage values like inductance, Ris, Rsense, and compensation values?
We desided values via TI tool and find tune COMP / RIS by test result.

www.ti.com/.../slvc687

Thanks!

Hu

Hi Sir,

Please provide details to help us resolve this issue.

Thanks!

Hu

Hi Hu,

From my previous post...I did not see the PWM'ing FET.  Is it in the schematic?  This can be your issue if you are using PWM'ing in PL mode without a PWM'ing FET.

Thanks Tuan