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Showing 29 results View by: Thread Post Sort by
    Answered
  • PCA9557: I2C clock frequency.

    Kengo.Y
    Kengo.Y
    Resolved
    Part Number: PCA9557 Tool/software: Hi team, Is that true that SPEC is minimum? I believe that it is maximum. BR, Kengo.
    • Resolved
    • 3 months ago
    • Interface
    • Interface forum
  • PCA9557: All push-pull ports option

    Marco Rojas
    Marco Rojas
    TI Thinks Resolved
    Part Number: PCA9557 Other Parts Discussed in Thread: TCA6408A , TCA9538 Tool/software: Hi team, I have a customer with the below inquiry, let me know your thoughts and thanks in advance! "Quick question for you, is there a direct push-pull option…
    • 7 months ago
    • Interface
    • Interface forum
  • Unexpect output state of PCA9557

    Evan Wu
    Evan Wu
    Other Parts Discussed in Thread: PCA9557 Hi all, We encountered an unexpected behavior with PCA9557. An I2C write command was issued by our controller followed by an I2C Write/Read command to do the validation. Sometimes, we got a validation failure…
    • over 2 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9557: How can the device work in standby mode?

    Sean Song
    Sean Song
    Resolved
    Part Number: PCA9557 Hi expert, Our customer want to use our PCA9557. They want to know how can the device work in standby mode? Do they need to set it up, or will the device automatically enter standby mode when I2C idea? Thanks Best Regards…
    • Resolved
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9557: IBIS model for PCA9557

    Antony Fu
    Antony Fu
    TI Thinks Resolved
    Part Number: PCA9557 Other Parts Discussed in Thread: TCA9538 Hello, Customer is asking whether we have IBIS model about PCA9557, so would you like to help us check whether we have it? Thanks, Antony
    • over 5 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9557: Is there any difference between the PCA9557RGVR & PCA9557RGYR?

    Kygo Cheng
    Kygo Cheng
    Resolved
    Part Number: PCA9557 Hi Team There is a good new that we DIN PCA9557 But cause PCA9557RGVR is out of stock, could you share the difference between PCA9557RGVR & PCA9557RGYR ? THX
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • PCA9557: Spice model for running simulation in virtuoso

    Avi Singhal1
    Avi Singhal1
    Part Number: PCA9557 Hi, I need the spice model(.CIR file) for PCA9557PWR The one which is available on ti.com is the encrypted model. I need the unencrypted one, as i want to create a symbol for this component and then use it in a test bench.
    • over 4 years ago
    • Interface
    • Interface forum
  • PCA9557: Is there any limitation on the voltage that can be connected to pull up of open drain pin I/O0 (P0)?

    Kiran Kumar Kalsani
    Kiran Kumar Kalsani
    Answer Suggested
    Part Number: PCA9557 We are using PCA9557 and want to pull up the I/O0/P0 to 1.8V. The device is powered by 3.3V in our board. I want to confirm if there is any limitation on the P0 (which is specifically open drain pin) pull up voltage since the pin…
    • over 3 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9557: communication time out

    Kazuki Kuramochi
    Kazuki Kuramochi
    Resolved
    Part Number: PCA9557 Hello expert, I have question for PCA9557's behavior regarding SMBus communication time out. My customer observed that PCA9557 hasn't happened time out even if adding more than 25ms wait between Reg addr and write data. I think SMBus…
    • Resolved
    • over 5 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9557: about thermal resistance, Rjt, Rjc and Rjb

    Joyce Li
    Joyce Li
    Resolved
    Part Number: PCA9557 Hi dear experts, Would you please provide PCA9557 Rjt, Rjc and Rjb information to me? Datasheet only lists Rja. Plus, what is the max Junction temp of PCA9557. Thanks very much for your reply in advance. BR, Joyce Li
    • Resolved
    • over 4 years ago
    • Interface
    • Interface forum
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