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TXB0108 and TXS0108

JENITT MARIA FRANCIS
Intellectual 380 points
Other Parts Discussed in Thread: TXB0108, TXS0108E, SN74AVC8T245, SN74LVC8T245

Hi,

What is the driving current strength of TXS0108 and TXB0108?Is TXS0108 is capable of driving a LED?

Thanks,

Jenitt

  • 0
    TI__Expert 6335 points

    Jenitt,

    I do not think that the TXB0108 or the TXS0108E can properly drive a LED.

    Most LEDs require several mA worth of forward current. The TXB0108 and TXS0108E are intended to drive high-impedance (i.e. very low current) loads. The datasheet specifies that the VOH and VOL levels are guaranteed only if the load is pulling just 20 uA. There is no way that either device can drive a proper VOH and VOL if the LED requires mA worth of current.

    I can propose an alternative - SN74AVC8T245 or SN74LVC8T245. These translators DO supply mA worth of current.

    Let me know what you think, or if you have more details in your application that could help us select the right translator for you. Thanks.

    Best Regards,
    Nirav