Search tips
Showing 16 results View by: Thread Post Sort by
    Answered

  • [FAQ] ISO1640: Why are the maximum load capacitance and load current ratings for Side 1 of the ISO1640/ISO1641 less than Side 2?

    Resolved
    Part Number: ISO1640 Other Parts Discussed in Thread: ISO1641 Why are the maximum load capacitance and load current ratings for Side 1 of the ISO1640/ISO1641 less than Side 2?
    • Resolved

  • ISO1641: DWR - SOIC 16 : P2P compatibility with other ISO164x?

    TI Thinks Resolved
    Part Number: ISO1641 Other Parts Discussed in Thread: ISO1640 , ISO1642 , ISO1643 , ISO1644 Team, Assuming that you have an e xisting HW design/PCB for ISO1641(unidirectional, 2 ch) : -Can the ISO1640 be used a P2P drop-in for ISO1641? Or would a HW change…

  • ISO1641: SDA pin high/low voltage value consult

    TI Thinks Resolved
    Part Number: ISO1641 Hi Team, Customer tested our ISO1641B by below D/S configuration, but finding the high/low voltage of SDA pin cannot react to VCC and GND value. They want to know the reason here. I think it should be related w/ pull-up resistor and…
    • Answered

  • [FAQ] Why is the logic LOW level output voltage, VOL1, up to 0.8V on Side1 of the ISO1540/ISO1541 and ISO1640/ISO1641 bidirectional I2C isolators?

    Resolved
    Other Parts Discussed in Thread: ISO1541 , ISO1540 Why is the logic LOW level output voltage, V OL1 , up to 0.8V on Side1 of the ISO1540 and ISO1541 bidirectional I2C isolators?
    • Resolved

  • RE: ISO1540-Q1: Acknowledge level issue on interface with TCA9511A

    Hi Clément, Thanks for the detailed description of the issue. The value of pull ups will change the rise and fall time which affects the data rate, but it will not have any effect on the final voltage. The 1V and 2V spike difference is for the same…
    • Answered

  • RE: ISO1644: ISO1644 issue

    Resolved
    Hi Jay, Thanks for reaching out. The signals that you are measuring are behaving as expected. The ISO1644 has a diode in the design in order to have a bi-directional communication. It is a common practice in industry for isolated i2c communication. For more…
    • Answered

  • ISO1540: 0.8V diode forward voltage when I2C signal turn to low level

    Resolved
    Part Number: ISO1540 Dear team, We have refer to FAQ as below link about diode function and 0.8V forward voltage at diode. https://e2e.ti.com/support/isolation-group/isolation/f/isolation-forum/757564/faq-why-is-the-logic-low-level-output-voltage-vol1…
    • Resolved

  • ISO1540: ISO1540

    TI Thinks Resolved
    Part Number: ISO1540 Other Parts Discussed in Thread: BQ76952 , , ISO1640 , ISO1641 Hi, I was exploring the option of using the ISO1540 or 1541 I2C Isolator for my design using the BQ76952 in stacked configuration. The I2C isolators though aren't easily…

  • RE: INA226: Address error

    Hi, From what has been discussed, I am assuming that the MCU in this system is connected to side 1 of the ISO1541. If this isn't the case, please let me know. As you have already mentioned in your response, the MCU will not be compatible with the ISO1541…

  • 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…

Didn't find what you are looking for? Post a new question.