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Showing 174 results View by: Thread Post Sort by
  • TCA9539-Q1: Read from Register

    Masakazu Adachi
    Masakazu Adachi
    Answer Suggested
    Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Hello team, I receive a question from the customer. They say that sometimes there is no ACK at the yellow line timing when the following conditions are present. Do you know the cause? 1.…
    • 2 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: I2C Read operation clarification

    Thomas CN1
    Thomas CN1
    Resolved
    Part Number: TCA9539 Hi, TCA9539 data sheet section 8.6.3.1.2 describes the read operation as below. This is bit confusing. Can anyone please help to understand what is RESTART mentioned here and how the Port0, Port1 accesses are happening exactly from…
    • Resolved
    • 2 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: P2P alternative for the TCA9539QPWRQ1 part

    Vlad Gorelov
    Vlad Gorelov
    Resolved
    Part Number: TCA9539 Hello experts, I would like to check with you about a p2p alternatives for the following PN : TCA9539QPWRQ1 (the TCA9539 parts family) This is for future clients usage and currently it doesn’t matter if the p2p alternative is out…
    • Resolved
    • 2 months ago
    • Interface
    • Interface forum
  • TCA9539-Q1: reset of TCA9539-Q1

    Hazel Sun
    Hazel Sun
    TI Thinks Resolved
    Part Number: TCA9539-Q1 Hi team, There are 2 questions about TCA9539-Q1: Whether a reset is needed after VCC is on Before manipulating IIC read and write, do I have to pull up reset , and then pull down reset again?
    • 6 months ago
    • Interface
    • Interface forum
  • TCA9539-Q1: tca9539-q1

    Elena Faventi
    Elena Faventi
    Answer Suggested
    Part Number: TCA9539-Q1 Hi, are there any differences in the programming registers between the TCA9555 and the TCA9539? I know that there are differences in the internal pull-up, in the reset pin, in the address I2C, but I don't know if there is some…
    • 9 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: TCA9539 PWM output

    BRUCE Xu
    BRUCE Xu
    Resolved
    Part Number: TCA9539 Hello I want to know, when the IC pin configured as output, whether it can used as pwm output to drive fan, and the output frequency is higher than 1kHz. thanks!
    • Resolved
    • 9 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: Inquire about TCA1116 package

    Downey Kim
    Downey Kim
    Resolved
    Part Number: TCA9539 Hi TI experts, Customer plan to change TCA1116PWR to TCA1116RTWR because of lead time. Is there any difference besides the package? If we change the PCB package, can direct replace TCA1116PWR to TCA1116RTWR ? Please check it. Thank…
    • Resolved
    • 6 months ago
    • Interface
    • Interface forum
  • TCA9539-Q1: Iq

    Chuqiang Wen
    Chuqiang Wen
    TI Thinks Resolved
    Part Number: TCA9539-Q1 Hi expert, I checked from datasheet, when I/O=input and no load, Iq as below. My question is that if I/O=output and the output level is low or high voltage, I/O connects to NMOS Gate pin. What is the Iq in this condition? Does…
    • 9 months ago
    • Interface
    • Interface forum
  • TCA9539-Q1: how to use tca9539-Q1, just use read mode help

    Byeon SangGyu
    Byeon SangGyu
    Answer Suggested
    Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9539 Hi, anybody I tested tca9539-Q1. I read datasheet of tca9539. So, I understand the slave address this ic 0x74 / (A1, A0 is LOW, 1110100) and to use it only read function, 0xE9 (1110100…
    • 11 months ago
    • Interface
    • Interface forum
  • TCA9539: Last time Buy PCA9539PW

    Jan Bock
    Jan Bock
    Part Number: TCA9539 Hi Team, Is the Last Time Buy only valid for PCA9539PW or are their any plans to set PCA9539PWR to LTB as well? Thanks Jan
    • 10 months ago
    • Interface
    • Interface forum
>

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