TPS92641EVM: TPS92641EVM

Hi Sheree,

What do you mean by "For this 4.5A - 5.5A load no Udim frequency is not setting (led gets flickering)" from the attached Excel file? Do you mean the LED get flickering when no UDIM signal is applied (The TP2 in TPS92641EVM is left floating)?

Best Regards,

Steven

Hi steven,

    When we connect led strip of current rating above 4A (i.e) 4.5 A to 5.5A, for all frequency range from 1.2KHz to 60KHz ( UDIM signal is applied at TP2 of TPS92641EVM) Leds gets flickers..

Best Regards,

Subahan

Hi Subahan,

Could you measure the SW, HG, LG voltage and show me the oscilloscope capture? I am wondering if overcurrent protection is triggered.

Best Regards,

Steven

Hi steven,

   For both issue, below 4A frequency varies (25KHz & 8.5KHz) & above 4A frequency not able fix --------- we need to measure SW,HG,LG voltage or any other data to be share...

Hi Subahan,

Please keep me updated once you have any test result. Thanks.

BR,

Steven

Hi Steven,

    Signal Image has been shared through mail, kindly go through & support at the earliest.

Regards

Subahan

Hi Subahan,

I do not receive any e-mail from you. Where do you send it to? Do you have a TI FAE contact window?

I have just sent you a friendship request on this E2E forum with my e-mail attached. You can contact me there.

BR,

Steven