Part Number: LM5123EVM-BST Hi,
We just purchased #LM5123EVM-BST (s/n:7498500034) development Board for new project. We applied 14V input to board and we observed 24V output at no load condition. Further we connected 0.5Amps load, we observed same 24V…
Part Number: LM5123EVM-BST Hi team,
Are users of this EVM allowed to change the switching frequency of PWM from 440kHz to 2.1Mhz?
Or will this cause issues?
Thanks,
Luke
Part Number: LM5123EVM-BST Hi team,
Is it possible to change the input voltage to 27V~42V and the output to 45V?
I know that I must change some resistor value, but the components can support this voltage range?
Regards
Part Number: LM5123EVM-BST Hello, Team,
We would like to set Vo to 36V or 48V using LM5123EVM-BST.
Assuming that changing RFBT and RFBB would do, but Vo only went up to 30V (w/o load) after changing R24 = 21kOhm and R26 = 4.7 ~ 36kOhm.
Where do we configure…
Hello Leo,
The Simplis model is primarily for internal use. A request would need to go through a TI contact or the customer service of TI.
Here you can find the Altium CAD files: LM5123EVM-BST Evaluation board | TI.com I hope I understood your question correct…
Hi Kevin,
Thanks for using the e2e forum.
For a boost design with 180W output power, I would recommend a synchronous Boost controller, which uses a high side switch instead of a diode to increase efficiency at higher load. A suitable part for this would…
Hi Harry,
I get your point about parasitic inductances - after my tests I'll create another design and try to create as short current path as possible.
I've also checked switching node under 50 ohm and 25 ohm load, voltage doesn't go below -3V and…
Hi Deepak,
Thanks for using the e2e forum. FETs in parallel are recommend to spread the current between the two FETs to avoid overload/heat of just one FET. The gate drivers are strong enough to support two FETs at once.
Regarding the placement of each…
Hi Niklas,
Question 1: All of the measurements are tested at FET directly. I tried the 4.4ohm even lower value resistor on my circuit, but the system became unstable. If any solution can improve this problem I will be grateful.
Question 2:The photo below…
Part Number: LM5123-Q1 Other Parts Discussed in Thread: TIDA-020033 , LM5123EVM-BST Hi Team, would it be possible to get the Schematic & PCB Layout Files (preferred Altium) for the LM5123EVM-BST and / or for the Design Guide TIDA-020033 (TIDUA71)?
…