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  • THVD1450: Recommend part and Review schematic

    TI Thinks Resolved
    Part Number: THVD1450 Other Parts Discussed in Thread: THVD1420 , THVD1449 , Hello Expert, We are testing CS (Conduction Immunity) Certification for EMC Test, there is a problem that the communication was cut off, So we are trying to replace w/ TI product…
    • Answered

  • THVD1450: alternative with external pull up/down?

    Resolved
    Part Number: THVD1450 Hi Team, I am looking for an alternative to THVD1450DG which can be used with external pull up/down. Customer has concerns regarding EMI compliance when no external pull up down resistors are used. BR, Stefan
    • Resolved
    • Answered

  • THVD1450: Can THVD1450 drive the signal with 38400bps and 1200m distance?

    Resolved
    Part Number: THVD1450 Hello guys, One of my customers is looking for RS485 half duplex transceiver which can drive the signal with 38400bps and 1200m distance. At this moment, they have the following questions. Could you please give me your reply? Q1.…
    • Resolved

  • THVD1450: RS485 signal pulsing high then dropping low as it carries through system

    Part Number: THVD1450 I am currently validating a PCB that uses the THVD1450DRBR RS485 buffer chip and I am facing two issues. The first is that the signal, when toggled, will pulse very high or very low (>6V when change in magnitude should be 3.3V or…

  • THVD1450: Do you have any circuit idea to turn on/off a external termination resistor?

    TI Thinks Resolved
    Part Number: THVD1450 Other Parts Discussed in Thread: THVD1424 Hello guys, One of my customers uses THVD1450 with 120 ohm external termination resistor for current products. For their next products, they need to turn on/off the external termination resistor…
    • Answered

  • THVD1450: RS-485

    Resolved
    Part Number: THVD1450 Can we connect 3.3V RS-485 system from one end to 5V RS-485 system another end on the same line? Is that advisable. Note: I understood that minimum differential voltage should be +/- 1.5V.
    • Resolved

  • THVD1450: THVD1450DR Part marking does not match the datasheet with respect to pin 1 location.

    Answer Suggested
    Part Number: THVD1450 On THVD 1450DR SOIC(D) 8 pin parts received from TI Shenzen, the pin 1 marking is a line on the actual THVD1450DR and is not a dot as shown on SLLSEY3E –MAY 2018–REVISED MAY 2019 page 42 . How is an PCB assembly house…

  • THVD1450: Control the number of devices

    TI Thinks Resolved
    Part Number: THVD1450 For using THVD1450, if we choose hardware control and baud rate is 9600. Could we connect with 32 device? Thanks

  • THVD1450: THVD1450 A/B diff signal distorted at 4Mbps

    Part Number: THVD1450 Dear TI Expert, I am design a RS485 bus with one master and one slave, the Master side using ADM2582, the slave side using THVD1450, both side was terminated with 120 resister, But I encountered a very strange phenomena, when Master…

  • THVD1450: Not receiving the packets after attaching in a modbus network as a slave after a short interval of time!

    Part Number: THVD1450 Hi All, I am using THVD1450 as the RS485 receiver in a modbus slave type devices. Everything is working perfectly in the lab situation. But when we installed in a specific network of 400 meters we started seeing a problem of the…

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