LM25149: LM25149 SCH problem

liulu liulu

Prodigy 80 points

Part Number: LM25149

Tool/software:

HI Ti Team:

I have two questions, please help to answer,thanks.

1.The reference design of resistance R6942 uses 0.24R, but we can use 1R here,Is that OK?

2.Whether the interior of PIN23 is connected to GND?

3 months ago

0 Dino Maslic 3 months ago

TI__Expert 5340 points

Hi Liulu,

1. Need to follow the reference design closely for this as this is part of the compensation loop for the EMI filter. Don't use other values that the ones in the reference design.

2. Pin 23 is connected to the active EMI sense input.

Thanks,

Dino

0 liulu liulu 3 months ago in reply to Dino Maslic

Prodigy 80 points

Hi Dino,

Thank you for answering these questions.

+1 Dino Maslic 3 months ago in reply to liulu liulu

TI__Expert 5340 points

No problem, closing thread.

0 liulu liulu 2 months ago in reply to Dino Maslic

Prodigy 80 points

Hi Dino,Can you tell me what is the maximum output current of LM25149 in terms of amperage？

0 Dino Maslic 2 months ago in reply to liulu liulu

TI__Expert 5340 points

That would depend on the FETs chosen, no ""max' current beyond the FET's being so large the the gate signals from the controller wouldn't be able to drive the FETs.

Thanks,

Dino

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LM25149: LM25149 SCH problem