TCA39416: VOL_output low voltage

Naizeng Wang

Expert 5800 points

Part Number: TCA39416

Tool/software:

Hi team.

What's the VOL spec for this device? I cannot find it in datasheet.

over 1 year ago

0 Jack Guan over 1 year ago

TI__Guru 52111 points

Hi Naizeng,

The team is out on US holidays today and responses will be delayed. Thank you for your patience.

Regards,

Jack

0 Clemens Ladisch over 1 year ago

Guru 321890 points

This device is a passive switch, so it does not have any drive strength. For low signals, it behaves like a 8 Ω resistor.

0 Jack Guan over 1 year ago

TI__Guru 52111 points

Hi Naizeng,

This depends on external factors including the VIL and VCC conditions. In this case, the VOL is a direct relationship with VIL due to the passive switch architecture that Clemens' referenced. It can be calculated through VOL = VIL + IOL x RON, where IOL is the current through the internal 10kohm pullups and VCC.

Regards,

Jack

Interface

Interface forum

TCA39416: VOL_output low voltage