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TCA9517-Q1: Is it ok to use TCA9517-Q1 with VCCA > VCCB supply configuration

Part Number: TCA9517-Q1

Hello,

we have used the  TCA9517-Q1 with VCCA<VCCB but now we have some design modification for which we need to use TCA9517-Q1 in VCCA > VCCB

On website we found that for this part there is no power supply restrictions are mentioned. Also in Datasheet some electrical data is mentioned for VCCA>VCCB.

we also checked some of previous Q/A from the TI e2eSupport related to this but in some cases it is recommended to use with VCCA>VCCB and in some case it is not suggested like that

  • Hello, 

    The TCA9517-Q1 can be used in this configuration. The device is guaranteed to provide bi-directional voltage-level translation (up-translation and down-translation) for the VCCA and VCCB ranges listed in the datasheet.

    VCCA Range: 0.9 V to 5.25 V

    VCCB Range (when VCCA > VCCB): 2.9 V to 5.25 V

    Best, 

    Kenneth