• TCA9803: TCA9803 power off A side high impedance

  

  Yunjing Wang1

  TI Thinks Resolved

  Part Number: TCA9803 Tool/software: Hi team, My customer is using TCA9803, and wondering what is the impedance value when A side is power off? Could you pls share the impedance value in this case? Thank you! Powered-off high impedance I 2C bus pins on…

  • 3 months ago
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• P82B96: Inquiry Regarding the Extended Falling Time After Connecting P82B96 with TCA9803

  

  Wang MINT

  TI Thinks Resolved

  Part Number: P82B96 Other Parts Discussed in Thread: TCA9803 , Tool/software: Hi support team, As shown in the figure, when I connected the TCA9803 to PB2B96 in order to reduce the output voltage (VOL), I observed that the falling time of the SDA signal…

  • 13 hours ago
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• TCA9803: Schematic review request

  

  Stefan Agasvari

  TI Thinks Resolved

  Part Number: TCA9803 Tool/software: Hello. Please be so kind and help to review customer schematic using TCA9803 provide your feedback and eventually any proposal if you have any. If the resolution is not good let me know I can send it over email. Thank…

  • 1 month ago
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• TCA9803: I2C buffer + impedance change from low to high

  

  Rosario Gandolfo

  Part Number: TCA9803 Tool/software: Hi team, I would have a question regarding the TCA9803. Would it be possible to use this device as a buffer for 1.8V, but also to change the input impedance from example 2.2k Ohm at the input to 100k Ohm at the output…

  • 2 months ago
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• TCA9803: VOH(min)(for I2C) Required

  

  Alex V Koshy

  TI Thinks Resolved

  Part Number: TCA9803 Tool/software: Please share VOH(min)(for I2C) value, didn't found in datasheet

  • 2 months ago
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• TCA9803: hang-up issue

  

  Rice Lee

  TI Thinks Resolved

  Part Number: TCA9803 Tool/software: Hi TI We replaced our DUT’s PCA9617 to TI TCA9803. (Side A 1.8V/ Side B 3.3V) We followed the spec to NC the side B pull up resistor. The VOL is better for TCA9803 obviously. (see TCA9803_PIC1.png) But when we…

  • 4 months ago
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• TCA9803: Connection with multiple buffer in series

  

  Enrico Bonacini

  TI Thinks Resolved

  Part Number: TCA9803 Tool/software: Hi, I have a question ragarding series connection of multiple buffers. My idea is to connect one buffer in between each slave of the i2c bus, in order to exploit the buffer function and interrupt the bus line in special…

  • 3 months ago
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Answered

• TCA9803: About VIH

  

  kakeru manita

  Resolved

  Part Number: TCA9803 Hi team, Table 7.2 states that the VIH MAX is VCCA/VCCB, but should it not exceed VCCA/VCCB at all? Best Regards,

  • Resolved

  • 6 months ago
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Answered

• TCA9803: I2C buffer

  

  Sneha Kumari

  Resolved

  Part Number: TCA9803 Other Parts Discussed in Thread: TXS0104E Hi, I am developing a test daughter card, in which I2C interface from the evaluation board is used for connecting to four slave devices. In the evaluation board TXS0104 voltage level translator…

  • Resolved

  • 6 months ago
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Answered

• TCA9803: Regarding parallel connection

  

  kakeru manita

  Resolved

  Part Number: TCA9803 HI Team, I would like to ask a question of configuration. Is it possible the connection configuration as shown below? Best Regards,

  • Resolved

  • 7 months ago
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