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Showing 20 results View by: Thread Post Sort by
    Answered
  • RE: ISO1540-Q1: Acknowledge level issue on interface with TCA9511A

    Vikas Jeevannavar
    Vikas Jeevannavar
    Resolved
    Hi Clément, The reasons why we are suggesting you swap the sides is that on side 1, V OL of ISO1540-Q1 is very close to V IL of TCA9511A and the cables might cause it to go into indeterminate state. Side1 connected to MCU will show 0V which clarify that…
    • over 2 years ago
    • Isolation
    • Isolation forum
  • Answered
  • ISO1540-Q1: ISO1540-Q1 maximum ratings

    Kalhana Colombage
    Kalhana Colombage
    Resolved
    Part Number: ISO1540-Q1 Other Parts Discussed in Thread: ISO1540 , ISO1640 Hi, In the ISO1540-Q1 data sheet's absolute maximum table, it mentions that the SDA and SCL lines for either side should not exceed VDDx + 0.5V So does that mean that the part…
    • Resolved
    • over 4 years ago
    • Isolation
    • Isolation forum
  • ISO1540-Q1: Can the Gnd on one of the isolated sides be above zero potential.

    Abhijeet Abhijeet
    Abhijeet Abhijeet
    TI Thinks Resolved
    Part Number: ISO1540-Q1 Hey there, I am trying to isolate a circuit's I2C signals. This circuit has a Gnd which is raised above 0V. The VCC is at 67V and the Gnd is raised to 62V. will that pose a problem? asking this cause I cant simulate the IC…
    • over 5 years ago
    • Isolation
    • Isolation forum
  • Answered
  • ISO1540-Q1: Reinforced Isolation version

    Hidekazu Someno
    Hidekazu Someno
    Resolved
    Part Number: ISO1540-Q1 Hello, ISO1540-Q1 meets basic isolation. Do you have any plan of ISO1540-Q1 or any other I2C part to meet reinforced isolation. Best regards, H.Someno
    • Resolved
    • over 6 years ago
    • Isolation
    • Isolation forum
  • ISO1540-Q1: SMBus and I2C Application

    Mike Jin
    Mike Jin
    TI Thinks Resolved
    Part Number: ISO1540-Q1 Other Parts Discussed in Thread: TCA9517A , ISO1541 , ISO1540 , BQ40Z50 Hello Support team: I met SMBus programming issue cause by noise or longer communication line. Project diagram as below; 1. The host system(MCU) SMBus + ISO1540Q1…
    • over 7 years ago
    • Isolation
    • Isolation forum
  • Answered
  • ISO1540-Q1: Is the host affected if the VCC1 and VCC2 are off?

    Jose Magalhaes
    Jose Magalhaes
    Resolved
    Part Number: ISO1540-Q1 Hello, I am using the ISO1540-Q1 with VCC1 and VCC2 tied together to the supply of the guest system. So if the guest is powered off (VCC1 and VCC2 off), will this cause any interference on the host side? Regards
    • Resolved
    • over 6 years ago
    • Interface
    • Interface forum
  • Answered
  • ISO1540-Q1: Connection to side 1 and side 2

    Orobianco-Italy
    Orobianco-Italy
    Resolved
    Part Number: ISO1540-Q1 Other Parts Discussed in Thread: ISO1540 Hello, My customer is designing I2C using ISO540 - Q1, There is a part with less margin against device specification. Would you please let me know if they can avoid this in the following way…
    • Resolved
    • over 7 years ago
    • Isolation
    • Isolation forum
  • Answered
  • BQ78350-R1: how to design isolation SMBus interface

    user6501051
    user6501051
    Resolved
    Part Number: BQ78350-R1 Other Parts Discussed in Thread: BQ76940 , BQ78350 , ISO1540 , ISO1540-Q1 , Dear TI expert, i use BQ78350+BQ76940 design one low side driver BMS, i want to design isolation SMbus interface, how to design it? have a nice day!
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • RE: I2C to I2C bridge with opto-isolation

    Koteshwar Rao
    Koteshwar Rao
    Hi Frank, Thanks for your response. The isolated I2C devices that we currently have in our portfolio are ISO1640, ISO1641, ISO1540, ISO1541, ISO1540-Q1 and ISO1541-Q1. I understand the stock might not be available all the time due to current high demand…
    • over 2 years ago
    • Interface
    • Interface forum
  • ISO1540: Do you have ISO1540 datasheet version SLLSEB6F?

    Kazuya Nakai59
    Kazuya Nakai59
    TI Thinks Resolved
    Part Number: ISO1540 Hello guys, A few of my customers are using ISO1540 for their products in mass production. About 2 month ago, they received ISO1540 PCN(Product Change Notice). The document says that the chip design has been changed and the datasheet…
    • over 2 years ago
    • Isolation
    • Isolation forum
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