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MUX Part number recommendation

Intellectual 760 points

Replies: 4

Views: 93

Hi team

there is a MUX requirement and the function is as I described below:

1. Logic chart

SET=H

VOUT=IN1=3.3V

SET=L

VOUT=IN2=0V

 2. the SET PIN could be 0~12V.

3.  the price should be as low as possible.

Thanks

Best regards

Wesley Huang

Wesley-huang@ti,com

  • In reply to Zhihong Huang:

    Hi Wesley,

    Thank you for providing those details and diagram.

    My best recommendation for a single 2:1 mux is TMUX1247, which supports supply voltage range of 1.08 - 5.5V and logic control input (SEL) of 0 - 5.5V. TMUX1247 features 1.8V logic and fail-safe logic. 

    I would like to point out that TMUX1247 and similar devices use the following truth table:

    Is it possible to interchange the IN1 and IN2 pins in your system?

    Best regards,

    Kate

  • In reply to Kate Dickson:

    Hi Kate

    Thanks for your recommendation:

    1. It is possible to interchange the IN1 and IN2 pins in my system

    2. from the datasheet, the voltage range of SEL is -0.5V~6V. it seem that it can't undertake the 12V. would you have any idea for solve this?

    Thanks

    Best regards

    Wesley Huang

    Wesley-huang@ti,com

  • In reply to Zhihong Huang:

    Hi Wesley,

    Thanks for your response. 

    TMUX6119 is a 2:1 mux that supports a positive supply voltage (VDD) of 5 - 16.5V and a digital input (SEL) pin voltage of 0V to VDD. TMUX6119 also includes an enable pin, allowing for a third state where both switches are OFF.

    This is a good solution if your power supply is 12V or more.

    Best regards,

    Kate