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

Vayne Li
Expert 1030 points
Part Number: LSF0102

Tool/software:

Hi Teams

Is there a similar solution to LSF0102 for products with latch up>250mA， 2ch is OK

  • 0
    TI__Mastermind 41106 points

    Hi Vayne,

    If you are referring to VCC to GND, there isn't an immediate translator that comes to my mind that is able to support above 250mA. It is generally advised to stay within the recommended operating conditions, i.e the LSF0102 suggests <64mA during normal operation: 

    Other translators such as the AVC2T245, are rated up to only 100mA before damage to the device is certain: 

    What are the voltages that require level shift? 

    Regards,

    Jack 

  • 0 in reply to Jack Guan
    Expert 1030 points

    Hi Jack,

    Thank you for your reply,

    The general application is 3.3V to 3.3V, and the main requirement is directional controllability.

    Similar to this application, it requires two channels

  • 0 in reply to Vayne Li
    Guru 317360 points

    What exactly are the conditions under which the latch-up is tested? Neither LVC nor LSF devices have clamping diodes from the I/O pins to VCC, so positive overvoltage will damage the device before a current flows in a controlled manner. I suspect that your solution would be any random buffer with external clamping diodes.