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  • TMUX7462F: UART overvoltage protection IC

    TI Thinks Resolved
    Other Parts Discussed in Thread: TMUX7462F , TPS25200 Tool/software: Hi, Are there any efuses that I can use for protecting a communication line that was initially designed for 3.3V but needs to be protected against over voltages of up to 20V and…

  • TMUX7462F: Automotive 1PPS & ADC (5V) input with short to battery (36V) protection

    Part Number: TMUX7462F Other Parts Discussed in Thread: TMUX1308-Q1 Tool/software: Hi TI Expert I read the application note #scpa071 (Short to Battery Protection with TI Analog Switches and Multiplexers) and want to survey the input protection component…
    • Answered

  • TMUX7462F: Significant Leakage Current into Source Pin

    Resolved
    Part Number: TMUX7462F Hello, I integrated the TMUX7462F as protection from voltages above 4V according to the following draft into my system: According to the datasheet, my expectation was that the switch SW should open, once Vsource exceeds…
    • Resolved

  • TMUX7462F: Voltage on floating Source and Drain Pins

    Part Number: TMUX7462F Hello, I use the TMUX7462F for protecting my measurement electronics from above 4V and used the following setup for testing: When VFP is left floating, D1 can be measured with GND potential. However, if I now connect 3.3…
    • Answered

  • TMUX7462F: Supplying the VFN with 0.5V ?

    Resolved
    Part Number: TMUX7462F Other Parts Discussed in Thread: TMUX741-746EVM Hi, About the "Supplying the VFP pin with a series diode" topic, the answer includes "VFN at 0.5V then the clamping voltage should be around -0.2V". I have just noticed the VFN…
    • Resolved
    • Answered

  • TMUX7462F: Protecting 3-Wire RTD sensor to 48V overvoltage on inputs

    Resolved
    Part Number: TMUX7462F We need to protect a 3-wire RTD measurement circuit to 48V short circuit on any input. Would one TMUX7462F powered at 10V accomplish this task? We need to clamp the inputs to maximum 3.3V, so can we assume we need to connect…
    • Resolved
    • Answered

  • TMUX7462F: Supplying the VFP pin with a series diode

    Resolved
    Part Number: TMUX7462F Hi, TMUX7462F protects from overvoltage beyond the VFP+VT I need to protect a 5V level signal with GND-0.3V to 5V+0.3V (absolute max) range. If I connect VPF pin to 5V supply, max voltage on the signal can go up to 5.7V before…
    • Resolved

  • TMUX7462F: Floating DR and FF pin

    TI Thinks Resolved
    Part Number: TMUX7462F Hello Guys, Good day. Our customer is looking at the TMUX7462F as an alternative to a part they are using in a current design. They are trying to understand how the device would perform if both the DR and FF pins were left completely…
    • Answered

  • TMUX7462F: RDSon for CAN interfaces, Vfp and Vfn ramp-up and connections

    Resolved
    Part Number: TMUX7462F 1. Considering that the typical impedance of a CAN bus is 120Ω, is the maximum on-resistance of 16Ω an issue? My customer designs the system considering the minimum impedance of CAN can reach 60Ω and manifested concern in using…
    • Resolved

  • Drain operation when overvoltage detected

    Answer Suggested
    Part Number: TMUX7462F Tool/software: Hi, Staff In TMUX7462F(SCDS394B) page30 Figure9-2. I think the DRAIN voltage changed because the source voltage exceeded the VDD threshold VFP, but why did the DRAIN voltage drop to 0(ZERO)V? Is it because the…

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