Part Number: PMP9484 Other Parts Discussed in Thread: TPA3110D2 , LM5122 Hi
In the reference design( pdf file name : tidras4 ) there are five 0.009 resistors(R42-R46) kept in between the output of Boost converter (LM5122M) and the class D Power amplifier…
Part Number: PMP9484 Other Parts Discussed in Thread: LM5122 Hi, I can see that the NMOS CSD18501 (Q1) used to drive the stepup is used with negative bias. Is that
correct? The back diode will thwn transfer the durrent i the second phase of the stepup…
Asaf,
We do not offer many of our reference designs to purchase as eval boards. We do offer the complete BOM and gerber files for our customers to order themselves. Here is the link to where you can find those files.
HI Scott,
thank you for using the E2E forum.
Please check this reference design - this is very close to your requirements: PMP9484 reference design | TI.com
Best regards,
Stefan
HI Ben,
doing a 100W design with a async controller can be quite challenging but depends also on the efficiency you need to get and the thermal requirements.
I suggest to go with an sync. controller like shown here:
PMP9484 reference design | TI…
Allen,
Thanks for reaching out with your question and using the LM25122. There is not a spread sheet that calculates the efficiency for the LM25122. It would be possible to simulate a single phase design in WEBENCH with and output current of 3A. This…
Hi Elec,
Usually at currents over 4A, we recommend to use a synchronous converter, like the LM5122. I've attached a reference design that you can use as a starting point:
https://www.ti.com/tool/PMP9484#applications
You may also contact the power…
Hi,
Take a look at the boost converter portion of PMP9484. It is designed for 7.5V to 20Vin with an output of 24V/5A. The output voltage can be adjusted by tweaking the feedback resistor network. This design runs at 145kHz. It will have a larger inductor…
