Part Number: TPS54140A Other Parts Discussed in Thread: TPS54140EVM-429 , , TPS54140 Hi
Is it enough to evaluate TPS54140A using TPS54140EVM-429?
Because there is no EVM for TPS54140A.
BestRegards
> 1) TPS54140 and TPS54140A should have samilar output ripple perfromance . There is just Enable threshold improvement in the A version . I think thers's a trivial difference of behavior in very small load. > you can use lower inductance value and…
Part Number: TPS54140A Hello Can someone tell me which current I can use for formula 8 and 9. Is the inductor current IL the same as the wanted current out? If I would use formula 12 To calculate the current I need the frequency result from formula 8 and…
Part Number: TPS54140A To reduce a ripple of TPS54140A in very small load (~less than 50mA) situation, I will choice a low inductance value(4.7uH). Is that OK ? The inductance value calculated by the equation of Lo(min)(in 8.2.2.2 Output Inductor Selection…
Part Number: TPS54140A Hi Robert, Thank you for your advice. Here's the lost images about preceding Q&A. This time, I use ".png" files. Because "paste a word data" couldn't be sent normally . Regards, user4778976 [Circuit] …
Please refer the thread below regarding this matter.
"TPS54140A: Ripple in very small load operation"
I added the waveforms in the above new thread, so please give me a feedback in the new thread.
Part Number: TPS54140A Tool/software: WEBENCH® Design Tools Hi Champs,
when exporting in Webench the simulation of a design to TINA it does only export the startup simulation.
Is it also possible to export the steady state, load transient....simulations…
Part Number: TPS54140A Other Parts Discussed in Thread: TINA-TI , Tool/software: TINA-TI or Spice Models I created a design with TPS54140A in webench and exported in tina-ti. I pulled-up the PWRGD pin to the output voltage (3.3V) but the simulation result…
Part Number: TPS54140A It is used for 15V to 5V. The PH pin 5V during operating time with 15V input. But can I add 5V voltage to the PH pin for a long time without 15V input? It is a special condition in our design to add 5V to the PH pin without 15V input…
Part Number: TPS54140A Other Parts Discussed in Thread: TPS54341 Dear Forum,
My assigned customer has found some early field failures at minimum input voltage (10.8V), due to the device not starting up properly with their 60mA minimum load. As Vout is…