LM5160-Q1: The simulation model of TINA-TI

Lin Vast

Part Number: LM5160-Q1
Other Parts Discussed in Thread: LM5160, LMR38020

I downloaded a circuit example from the LM5160 product webpage for TINA.

I'd like to ask if on the circuit diagram, "Lmag" refers to the Lpri.

Do I also need to specify an inductance value on the secondary side?

Additionally, I'd like to confirm if the "RippleConfigurations" mentioned in the datasheet can help improve inductor ripple current.

9 months ago

0 Aurora Tie 9 months ago

TI__Genius 9890 points

Hi,

Lmag is the magnetizing inductance, and the primary inductance is equal to the leakage inductance plus the inductance of the exciting inductance. You don't need to specify the secondary inductance. But you need to specify the turns ratio.

"Ripple configurations" can improve the ripple of output voltage. In this case you can choose an output capacitor with a smaller ESR. Thanks.

Aurora

0 Lin Vast 8 months ago in reply to Aurora Tie

Prodigy 225 points

Hi Aurora,

Thanks.

Can the LM5160 control multiple transformers simultaneously ?

0 Aurora Tie 8 months ago in reply to Lin Vast

TI__Genius 9890 points

Hi,

Yes. Fly-buck circuit can do isolated multi-phase output. For details, you can refer to the following AN. In addition, for your application, I think our new product LMR38020 is also very suitable. It adopts new technology and has better performance. Thanks.

tidu478.pdf

Aurora

0 Lin Vast 8 months ago in reply to Aurora Tie

Prodigy 225 points

Hi Aurora,

In English:

I understand that fly-buck can generate multiple power outputs, but what I'd like to know is whether it can simultaneously control multiple transformers, like this.

0 Aurora Tie 8 months ago in reply to Lin Vast

TI__Genius 9890 points

Hi,

Yes, you can simulate it with a multiple transformer. But I have not done corresponding simulations with TINA before, only with Simplis. Maybe you can have a try. Thanks.

Aurora

0 Lin Vast 8 months ago in reply to Aurora Tie

Prodigy 225 points

Hi Aurora,

Thanks.I have downloaded the model into Simplis for simulation, but I'm encountering an error message, and it cannot be simulated. Do you have the correct model?

0 Aurora Tie 8 months ago in reply to Lin Vast

TI__Genius 9890 points

Hi Lin,

I just have a simple version of Simplis simulation. I can send it to you. Can you give me your email address? Thanks.

Aurora

0 Lin Vast 8 months ago in reply to Aurora Tie

Prodigy 225 points

Hi Aurora,

I send a friendship request for you,you can see my e-mail address,thanks.

0 Aurora Tie 8 months ago in reply to Lin Vast

TI__Genius 9890 points

Hi Lin,

I have sent it to you by email. And I will close this thread. Thanks.

Aurora

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LM5160-Q1: The simulation model of TINA-TI