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.
Yeah, I saw this article and it does provide some information but I noticed a couple things made we want to look further.
Equation 5 shows calculations for the high side FET using TPS40192.
1. 12V was selected for Vdrive but the datasheet shows absolute…
Hello Tahar,
Below is the calculation tool file that the customer replied.
TPS546C20A_TPS546C23_Calculator_Checklist_1p0 (1).xlsx
They said they couldn't change the values because they didn't understand the contents of the display items below.…
Other Parts Discussed in Thread: TPS40193 , TPS40192
Hello,
I need support regarding TPS40193, the reference schematic suggest a transistor to be connected to connect to EN pin. This is a active high pin, now in the configuration shown in the schematic…
Hetal,
it seems that the issue isn't completely gone. If simply the TPS54160EVM is selected and the what-if analysis is used, the crossover frequency changes from 39.3 to 38.7 and the phase margin from 36 to 37. This might be caused due to the fact…
1/10 of the switching frequency is a good choice.
The bandwidth corresponds to how fast the loop response is, so higher bandwidth means the output voltage can recover much more quickly during load transient.
Here is a design tool/checklist to help verify…
Ramgopal,
Your assessment of the bulk decoupling required is correct. You must calculate the required amount and validate it. The Hardware Design Guide (SPRABI2) discusses this calculation.
This bulk capacitance will affect the control loop on the power…
SI,
Please see the attached presentation. It was originally prepared for the LM10010 which was later superceded by the LM10011 which has higher precision. Please also see the many E2E posts discussing the LM10011 and TPS56121 with C667x and C665x.
To…
Hello Anthony,
Please provide the updated TPS40KType spreadsheet that you used prior to making the last recommendations for the compensation network values.
Please see attached.
David Robinson
TPS40KType III Loop Stability kVenable_sluc263c_DGR.xlsx
When the same control signal is used to enable two TPS4019x, it is not suggested to tie the ENABLE pins of the two TPS4019x together. The reason is as follows. Due to the process variation, the threshold on ENABLE pin which is 1.9V typical (3xV BE ) is…
