• TCA9509: pull-ups on the A SIDE

  

  Israel Rosner

  TI Thinks Resolved

  Part Number: TCA9509 Tool/software: Hi, i'm using the part in order to buffer the I2C line going to a sensor out from board. but i use it also to on-board device which i connected directly to the MCU without buffering. i read in the datasheet that…

  • 12 days ago
  • Interface
  • Interface forum

• TCA9509: Right part selection

  

  Hideki Hayashi1

  TI Thinks Resolved

  Part Number: TCA9509 Other Parts Discussed in Thread: TMDS1204 , Tool/software: Hi team, Customer is looking for level shifter for HDMI clock (LV_DDC_SCL/SDA to DDC_SCL/SDA), which is required for source application with TMDS1204. The host (A-side): VIO…

  • 1 month ago
  • Interface
  • Interface forum

• TCA9509: Will I2C signals on the A side be isolated from B side if the B side is the only rail powered

  

  Alan Hatfield

  TI Thinks Resolved

  Part Number: TCA9509 Tool/software: For the TC9509, we have the B side connected to 3.3V and the A side connected to 1.8V. During power on the 3.3V(side A) is powered up first. This 3.3V voltage rail is also connected to the EN signal. With the A side…

  • 4 days ago
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• TCA9509: TCA9509 connections

  

  ASB

  TI Thinks Resolved

  Part Number: TCA9509 Tool/software: for our design we have couple of PCBAs with different voltage rails. I am planning to use TCA9509 to support I2C bus across both boards . I have following I2C tree with 2 options. I would like to know which option…

  • 5 months ago
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• TCA9509: Datasheet specification inquiry

  

  Boyan Lu

  TI Thinks Resolved

  Part Number: TCA9509 Other Parts Discussed in Thread: TCA9517A Tool/software: Hi Team My client has some questions about how the datasheet specifications should be viewed. 1. The customer said that VIL VIH VOL VOH these parameters have a maximum value…

  • 4 months ago
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• TCA9509: TCA9509DGKR

  

  baoling wang

  TI Thinks Resolved

  Part Number: TCA9509 Tool/software: As shown in the figure, the chip uses TCA9509DGKR internal A end I2C has a pull-up, B end no pull (need external up) to achieve 1.8V to 3.3V I2C level conversion. After I2C mounted the device, it was found that the…

  • 5 months ago
  • Interface
  • Interface forum
Answered

• TCA9509: VIL 110mV min is too low for my application, any option with higher VIL?

  

  Bo

  Resolved

  Part Number: TCA9509 Other Parts Discussed in Thread: LSF0102 , TCA39306 , TCA9617B Tool/software: Hi TI team, Originally, I would like to use TCA9509 as voltage translator of 5V<-->3.3V, but when I checked the details, I found VIL of TCA9509 is 110mV…

  • Resolved

  • 3 months ago
  • Interface
  • Interface forum
Answered

• TCA9509: I2C timing for TCA9509

  

  Ann_Lien

  Resolved

  Part Number: TCA9509 Tool/software: Hello expert, May I know if TCA9509 has I2C timing spec as below? Thanks! Best regards, Ann Lien

  • Resolved

  • 9 months ago
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• TCA9509: Comparision table

  

  Ryan Huang

  TI Thinks Resolved

  Part Number: TCA9509 Other Parts Discussed in Thread: TCA9617B Tool/software: Hi Team, Please share comparision table between TCA9509DGKR and TCA9617ADGKR. Thanks.

  • 8 months ago
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• TCA9509: TCA9509 vs TCA9517 vs TCA9801

  

  Ann_Lien

  TI Thinks Resolved

  Part Number: TCA9509 Other Parts Discussed in Thread: TCA9801 , , TCA9517 Hello expert, My customer would like to know the difference between TCA9509 vs TCA9517 vs TCA9801. Could you provide the comparison table for it? Thanks a lot! Best regards, Ann L…

  • over 1 year ago
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