Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Schematic is shown in the UCC14141EVM-068 User Guide, Figure 3-1
Detailed design calculations are simplified in the UCC14141 Excel Design Tool and further explained in the data sheet and app note.
LTSpice model is not available since the sim tool is from…
Part Number: UCC14140-Q1 Other Parts Discussed in Thread: UCC14141EVM-068 , UCC14141-Q1 Tool/software: Dear TI experts,
My customer now tests UCC14140-Q1 in their own PCB.
They fould that there is ripple noise in the 15V output even no load is applied…
When you see negative RLIM values in the calculation, this indicates the RLIM function will not be able to compensate for the total charge mismatch between the two series connected output capacitors. Ideally if C1*V1=C2*V2 the RLIM would be doing nothing…
Ishaan,
I haven't gone through all your Excel calculations but a few comments I have:
For the single RLIM case, the calculated value of RLIM=266Ω is low. The temperature IC temperature rise would greatly benefit from the RDR configuration. …
Hi,
A quick estimation can be made to refer to the EVM test below ( Using the UCC14141EVM-068 for Biasing Traction Inverter Gate Driver Device (Rev. A) ).
So roughly the IC power consumption is around 55% to 65% of the IC average converter power output…
How to calculte RLIM(R3) in UCC14141EVM-068? Could you take this EVM to make an example for me? I want to learn about how to select Ivout2_max.
Thank a lot
Cody
Ochi,
(1) What happen on its output voltage / output power / operation in the case input voltage becomes 6V?
UCC14141-Q1 data sheet , section 8.3.4.1
(2) Do you have conducted noise test data up to 100MHz?
I have CE results for various EMI/module configurations…