TXS0102: TXS0102DCUR Issue

GARETH OU

Guru 12125 points

Part Number: TXS0102

Tool/software:

Attached is the measured waveform.

Green: VCCA (+1.8V)

Blue: OE Pin

Red: A1 Pin

over 1 year ago

0 Michael Ikwuyum over 1 year ago

TI__Guru 67947 points

Hi Gareth,

Seems input goes low when device is disabled as expected, thanks.

Best Regards,

Michael.

0 Jack Guan over 1 year ago

TI__Guru 52441 points

Hi Gareth,

Please also confirm the below requirements are met by the OE input in 2nd waveform provided:

Regards,

Jack

0 GARETH OU over 1 year ago in reply to Jack Guan

Guru 12125 points

Hi Jack

Could you help check below the TXS0102 schematic and any need to adjust

R979 has been changed to the same voltage as VCCA.Thanks

0 Clemens Ladisch over 1 year ago in reply to GARETH OU

Guru 322000 points

The TXS is a passive switch. Any I/O pin can go low only when an external device pulls it low.

The OE pin is a high-impedance input. The noise on the waveform is caused by the power supply. (And OE is overvoltage tolerant; it does not matter whether you use 1.8 V or 3.3 V.)

Logic

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TXS0102: TXS0102DCUR Issue