Part Number: UCC28782 Other Parts Discussed in Thread: UCC28056 , TL431 Tool/software: Dear TI team,
Input voltage range - 96Vac to 130VAC
Input frequency range - 360HZ to 800Hz
Output voltage - 48V
Output power 38W
Application - Avionics
Overview Circuit…
Hello Ulrich:
All this evacuation etc...kept us on our feet day/night...so could not focus on this issue until last few days.
Thanks a lot for the detailed information.
Appreciate that.
I will double-verify all the calculations to reflect your comments…
Part Number: UCC28782EVM-030 Tool/software: Hello:
I am trying to read back all the Forum discussions I had with TI folks over the last 2 weeks in a time sequence.
Just could not get that!
How do I read them back in sequence?
Unfortunately, I keep records…
Part Number: UCC28782EVM-030 Other Parts Discussed in Thread: LM51561 Tool/software: Hello
We need to convert 28v to 70-120 range300 power but with fast transient for a current controlled output of 400amp over 600usec with 40 Hz rep rate.
seems optimum…
Part Number: UCC28782 Tool/software: Hello Experts, My customer has question as follows. Would you answer it, please? 1. FLT-pin The datasheet stated that CFLT can be placed to avoid false OTP trigger from noisy environment. I suppose that OTP will trigger…
Part Number: UCC28782 Tool/software: Hello,
My Name Kumar, We have designed a flyback 40W power supply Vin:105Vac to 132Vac, Vout:20.8Vdc@ 2Amp load. I have seen a start up delay issue in my design as below. till 13V it was increasing linearly, after…
Hi Kaji-San,
I spoke with the experts and following is the summary of their feedback:
1. An improper RDM along with EMI dithering basically can cause low side MOSFET turn on at higher Vds – so higher power losses can be resulted – which can also have…
Part Number: UCC28782 Tool/software: Hello, Experts, Customer would like to know how to select DBUR. Would you tell how to select it, please? SS115LW RVG can be used?(It is used on EVM, called D3 and D17.) Best Regards, Fujiwara
Hi Kaji-San,
Sure, we will keep you posted on this, but I will need to close this thread for now. Please feel free to reopen this in a week's time, I will try to have more information on this.
Regards,
Harish
Part Number: UCC28782 Tool/software: Hello,
I am considering a UCC28782 device. I would like to ask you about the RRDM setting range. I am adjusting PWMH by changing the RRDM constant, but I am experiencing the following situation. When RRDM is over 200kΩ…
