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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…
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.com
Would…
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…
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,
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…
