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Original question:

LSF0102: Is there a similar solution to LSF0102 for products with latch up>250mA

LSF0102: LSF0102 schematic review

SangHyun Kim
Prodigy 70 points
Part Number: LSF0102

Tool/software:

Hi Ti Expert,

Could you check review below schematic? I'm sorry but I'm a beginner of hardware. 

This circuit is designed for the purpose of converting 5.0V UART signals to 3.3V signals.

On side B, the operating voltage is 5.0V and on side A, it is 3.3V.

 

And I want to control IC operation with /ENLVLS signal (this net is LOW state in normal).

Please check if there is anything wrong or if there is anything you need to add.

Sincerely,

SH.

  • +1
    TI__Mastermind 39986 points

    Hi SH,

    No immediate issues with current schematic- the open drain driver used here is proper configuration, and pullups are not needed on pin 6 (B1) if the signal in this channel will always be down translating from B->A. 

    Regards,

    Jack