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Showing 36 results View by: Thread Post Sort by
  • PCA9554: QFN package

    Will Wang47
    Will Wang47
    Part Number: PCA9554 Other Parts Discussed in Thread: PCA9544A , Hi team, Could you help check if we get the QFN package part of PCA9554? I can't find it in the datasheet. Thanks and Best regards, Will
    • 1 month ago
    • Interface
    • Interface forum
  • PCA9554: PCA9554 sleep mode

    Bard Ciou
    Bard Ciou
    Answer Suggested
    Part Number: PCA9554 Dear All, this is my customer for notebook application Does PCA9554PWR support the sleep mode? if yes, how the power consumption (mW) during the sleep more and operation mode? Regards, bard
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9554A: What is the difference between PCA9554A and PCA9554?

    Ken Chen39
    Ken Chen39
    Answer Suggested
    Part Number: PCA9554A Other Parts Discussed in Thread: PCA9554 What is the difference between PCA9554A and PCA9554?
    • over 1 year ago
    • Interface
    • Interface forum
  • PCA9554: PCA9545 digital inputs damaged caused by too long high rise times?

    Alois Lang1
    Alois Lang1
    Part Number: PCA9554 Hello, I made some measurements of one input of the PCA9554. I measured at Pin 12 of the PCA9554 to GND. I couldn't find any spikes, over - or undershot of the input signal at the Chip input point (PIN 12 of PCA9554). Conntecting…
    • over 2 years ago
    • Interface
    • Interface forum
  • PCA9554: PCA9545 digital inputs damaged caused by too long high rise times?

    Alois Lang1
    Alois Lang1
    TI Thinks Resolved
    Part Number: PCA9554 We use a PCA9545 I2C Port Extender Chip. In our application, we use the 8 Digital I/O-lines as inputs (also programmed by software). Sometimes, we don't know when and why, one or more input's will be damaged or don't work correctly…
    • over 2 years ago
    • Interface
    • Interface forum
  • Answered
  • PCA9534: May i know the difference between PCA9534 vs PCA9554 ?

    PYTsai
    PYTsai
    Resolved
    Part Number: PCA9534 Other Parts Discussed in Thread: PCA9554 , HI May i know the difference between PCA9534 vs PCA9554 ? Thanks! PY Tsai
    • Resolved
    • over 3 years ago
    • Interface
    • Interface forum
  • BQ24610: Same

    Charles Anthonysamy Adaikalasamy
    Charles Anthonysamy Adaikalasamy
    TI Thinks Resolved
    Part Number: BQ24610 Other Parts Discussed in Thread: PCA9554 , Hi Team, I am using BQ24610 for charger application. I am also using PCA9554 (I2C to IO expander) in the same PCB. Is it recommended to use the VREF (3.3V) output from BQ24610 to power the…
    • 3 months ago
    • Power management
    • Power management forum
  • PCA9554A: Over current fail

    Luis Vidaurreta
    Luis Vidaurreta
    Part Number: PCA9554A Other Parts Discussed in Thread: PCA9554 Hi, I am using the PCA9554ADG in 2 project and I have the same problem in both. A few second after powering on the board, the PCA9554ADG increase the power supply current and fails. After the…
    • 1 month ago
    • Interface
    • Interface forum
  • PCA9554 Questions

    Jim CHEN
    Jim CHEN
    Other Parts Discussed in Thread: PCA9554 Hi Sir, We tested some of the noise in the PCA9554 clock signal(SCL) .(as Figure And these noise happens to occur shock near the VIH. I would like to ask some question~ 1. What would happen when the swing happen…
    • over 5 years ago
    • Interface
    • Interface forum
  • PCA9554 schematic review

    Arthur Huang
    Arthur Huang
    Other Parts Discussed in Thread: TCA9554A Hi Team, can you please help for the atttached schematic review to see if any design concerns on the customer schematic? Thanks. Regards, Arthur 9554 for SOLARBEAM.pdf
    • over 5 years ago
    • Interface
    • Interface forum
>

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