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Showing 290 results View by: Thread Post Sort by
  • TCA9539: MTBF and Pi factors request

    Rayan Dridi
    Rayan Dridi
    TI Thinks Resolved
    Part Number: TCA9539 Tool/software: Dear Support Team, As part of a reliability analysis based on the VITA 51.1 standard, we are currently collecting failure rate data for components used in our systems. Could you please provide the following manufacturer…
    • 30 days ago
    • Interface
    • Interface forum
  • TCA9539: MTBF and Pi factors request

    Rayan Dridi
    Rayan Dridi
    Part Number: TCA9539 Tool/software: Dear Support Team, As part of a reliability analysis based on the VITA 51.1 standard, we are currently collecting failure rate data for components used in our systems. Could you please provide the following manufacturer…
    • 30 days ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: Need Tj

    Sky Kao
    Sky Kao
    Resolved
    Part Number: TCA9539 Tool/software: Hi Support Team, I need the Tj (Junction Temperature) information for TCA9539PWR , but I couldn't find it in the datasheet. Could you please provide this information? Thank you!
    • Resolved
    • 1 month ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539-Q1: reset for timeout

    Ryan Wang
    Ryan Wang
    Resolved
    Part Number: TCA9539-Q1 Other Parts Discussed in Thread: TCA9538 , , TCA9539 Tool/software: Team, What does below mean? timeout mean I2C timeout? What scenario it might be? " system controller " mean customer MCU? Does below mean TCA9538 will reset…
    • Resolved
    • 1 month ago
    • Interface
    • Interface forum
  • Answered
  • RE: TCA9539-Q1: TCA9539-Q1:Interrupt behavior

    Tyler Townsend
    Tyler Townsend
    Resolved
    Heater, Say the original state of your input is HIGH (logic 1). If that pin is changed to an output, the output will continue to operate without causing an interrupt on /INT. If you change that pin from an output to and input, and the input logic state…
    • 4 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539-Q1: Port over-drive

    Jessica Riley
    Jessica Riley
    Resolved
    Part Number: TCA9539-Q1 Other Parts Discussed in Thread: PCF8574 Tool/software: Is it okay to over-drive the ports of the TCA9539-Q1 (configured as either an input or output) if the current is limited to < 20mA? The voltages could be as high as 35V…
    • Resolved
    • 2 months ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539-Q1: Support for active input when VCC = 0v

    Al Franquiz
    Al Franquiz
    Resolved
    Part Number: TCA9539-Q1 Tool/software: Hi, can the TCA9539-Q1 support a condition where the TCA9539-Q1 in unpowered but has an active 5V signal on one of its PIOs? Will it be damaged? I didn't see a Ioff conditions specified in the data sheet like other…
    • Resolved
    • 1 month ago
    • Interface
    • Interface forum
  • Answered
  • TCA9539: fall time is less than 20ns

    Perry Chen
    Perry Chen
    Resolved
    Part Number: TCA9539 Tool/software: Hi Sir, Based on TCA9539 specification, minimum I2C fall time is 20ns+0.1*(total capacitance of one bus line). But I check my device, I 2 C fall time ls less than 20ns, if I use RC dealy, it will impact rise time. Is fast…
    • Resolved
    • 2 months ago
    • Interface
    • Interface forum
  • TCA9539-Q1: TCA9539 output default output state

    Scarlett Cao
    Scarlett Cao
    TI Thinks Resolved
    Part Number: TCA9539-Q1 Tool/software: Hi team, Customer is using TCA9539-Q1 for output channel expansion. they want to know when TCA9539-Q1 1) nreset pin low and 2) first power up, what the default output state, pull high or low? Thanks Scarlett
    • 5 months ago
    • Interface
    • Interface forum
  • TCA9539: 3/300 response different register content

    Kailun Liu
    Kailun Liu
    Part Number: TCA9539 Tool/software: Hi team, Customer feedbacks there are 3pcs/300 of TCA9539 has different response: DUT command, read register 0*00-0*07 from I2C 7 line address 0*74 device, and response with Hex format. The expected content is 00:00…
    • 2 months ago
    • Interface
    • Interface forum
>

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