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  • ISO1541: Can GND1 and GND2 differ by -7V?

    TI Thinks Resolved
    Part Number: ISO1541 Can VCC1 be +3.3V and GND1 be 0V, along with VCC2 being -2V and GND2 be -7V? I want to do this so I can interface a microcontroller running at VCC = 3v, GND =0v to the VCC1 side, to an LTC2945 power monitor measuring a negative supply…

  • ISO1541: SCL 2 didn't follow SCL 1

    Part Number: ISO1541 Hello Sir: Please refer our waveform as below. Ch1 is SCL1, Ch2 is SCL2 Ch1 is SDA1, Ch2 is SDA2 And below is our application circuit. Would you please let us know why the SCL2 can not rise up at the last of waveform? That effect…

  • TCA9803: Use case with ISO1541

    TI Thinks Resolved
    Part Number: TCA9803 Other Parts Discussed in Thread: ISO1541 , TCA9800 , TCA9509 Hi team: My customer use TCA9803 cooperates with ISO1541, There is a problem in the debugging, which is shown in the following diagram, which is mainly realized as the SDA signal…
    • Answered

  • ISO1541: Supply current sensitivity to humidity

    Resolved
    Part Number: ISO1541 I have a question about the ISO1541, could the silicon dioxide (SiO2) barrier be sensitive to moisture? Could that push its current drain higher? Have we tested this?
    • Resolved

  • ISO1541: Asking for ISO1541 design review and suggestions

    TI Thinks Resolved
    Part Number: ISO1541 Other Parts Discussed in Thread: ISO1540 , ISO1640 , ISO1641 Hi Team, Customer would like to design ISO1541 for I2C interface. Would you please help review questions and provide your comments? 1.customer power domain is as below. Could…

  • ISO1540: Revision F data sheet of ISO1540, ISO1541

    TI Thinks Resolved
    Part Number: ISO1540 Other Parts Discussed in Thread: ISO1541 , Hello Expert, I received PCN of ISO1540, ISO1541 from our customer. When I checked document, there is changed data sheet from Revision E to Revision F. PCN Doc.Link: https://components.arrow…

  • ISO1541-Q1: Can't find all I2C addresses

    Part Number: ISO1541-Q1 Other Parts Discussed in Thread: ISO1541 , ISO1540 Hi team, My customer need assistance. I’m using ISO1541QDRQ1 as I2C isolator on a custom board. I’m testing the board and I have a problem finding the I2C addresses. On side 1 I…

  • ISO1541: signal isolation only

    TI Thinks Resolved
    Part Number: ISO1541 Other Parts Discussed in Thread: ISO1641 Hello, for some reasons I'm not able to implement a power isolation between master and slave in one of our application. So, I'm thinking about of signal isolation implementation only, like…
    • Answered

  • ISO1540: ISO1540 as replacement for ISO1541?

    Resolved
    Part Number: ISO1540 Other Parts Discussed in Thread: ISO1541 , , ISO1640 Hello, if I understand datasheet of ISO1540/ISO1541 I2C isolator in a right way, ISO1540 is universal variant which could be used also in applications where ISO1541 is sufficient…
    • Resolved

  • ISO1541: schematic check

    TI Thinks Resolved
    Part Number: ISO1541 Other Parts Discussed in Thread: ISO6741 , ISO1641 , ISO6721 , ISO6720 Hi Could you help check the ISO1541 schematic as below and any need to adjust ,Thanks

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