TMUX7348F datasheet(5/60 Pages) TI

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Table 6-2. Pin Functions: TMUX7349F (continued)

TYPE(1)

DESCRIPTION

NAME

TSSOP

WQFN

S2A

I/O

Overvoltage protected source pin 2A. Can be an input or output.

S2B

I/O

Overvoltage protected source pin 2B. Can be an input or output.

S3A

I/O

Overvoltage protected source pin 3A. Can be an input or output.

S3B

I/O

Overvoltage protected source pin 3B. Can be an input or output.

S4A

I/O

Overvoltage protected source pin 4A. Can be an input or output.

S4B

I/O

Overvoltage protected source pin 4B. Can be an input or output.

Specific fault flag. Table 9-2 provides how this pin is an open drain output and is asserted low when

overvoltage condition is detected on a specific pin, depending on the state of A0, A1, and EN. Connect

this pin to an external supply (1.8 V to 5.5 V) through a 1-kΩ pull-up resistor.

VDD

Positive power supply. This pin is the most positive power-supply potential. For reliable operation,

connect a decoupling capacitor ranging from 0.1 µF to 10 µF between VDD and GND.

VFN

Negative fault voltage supply that determines the overvoltage protection triggering threshold on the

negative side. Connect to VSS if the triggering threshold will be the same as the device's negative

supply. For reliable operation, connect a decoupling capacitor ranging from 0.1 µF to 10 µF between

VFN and GND.

VFP

Positive fault voltage supply that determines the overvoltage protection triggering threshold on the

positive side. Connect to VDD if the triggering threshold will be the same as the device's positive

supply. For reliable operation, connect a decoupling capacitor ranging from 0.1 µF to 10 µF between

VFP and GND.

VSS

Negative power supply. This pin is the most negative power-supply potential. In single-supply

applications, this pin can be connected to ground. For reliable operation, connect a decoupling

capacitor ranging from 0.1 µF to 10 µF between VSS and GND.

Thermal Pad

—

Thermal pad. The thermal pad is not connected internally. It is recommended to tie the pad to GND or

VSS for best performance.

(1)

I = input, O = output, I/O = input and output, P = power

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TMUX7348F, TMUX7349F

SCDS400A – MARCH 2022 – REVISED NOVEMBER 2022

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