TMUX7436F datasheet(1/50 Pages) TI2

Part #	TMUX7436F

Description	TMUX7436F ±60 V Fault-Protected, Dual 2:1 Multiplexer With Latch-Up Immunity and 1.8 V Logic

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Manufacturer	TI2 [Texas Instruments]

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TMUX7436F ±60 V Fault-Protected, Dual 2:1 Multiplexer

With Latch-Up Immunity and 1.8 V Logic

1 Features

• Wide supply voltage range:

– Single supply: 8 V to 44 V

– Dual supply: ±5 V to ±22 V

• Integrated fault protection:

– Overvoltage protection, source to supplies or

source to drain: ±85 V

– Overvoltage protection: ±60 V

– Powered-off protection: ±60 V

– Interrupt flags to indicate fault status

– Output open circuited during fault

• Latch-up immunity by device construction

• 6 kV human body model (HBM) ESD rating

• Low On-Resistance: 8.6 Ω typical

• Flat On-Resistance: 10 mΩ typical

• 1.8-V Logic capable

• Failsafe logic: up to 44 V independent of supply

• Industry-standard TSSOP and smaller WQFN

packages

2 Applications

• Factory automation and control

• Programmable logic controllers (PLC)

• Analog input modules

• Semiconductor test equipment

• Battery test equipment

• Servo drive control module

• Data acquisition systems (DAQ)

S1A

S1B

D1

VDD

VSS

TMUX7436F

Fault Detection/

Switch Driver/

Logic Decoder

SEL1

SEL2

EN

DR

FF

SF

S2A

S2B

D2

Functional Block Diagram

3 Description

The TMUX7436F is a complementary metal-oxide

semiconductor (CMOS) analog multiplexer with latch-

up immunity in a dual channel, 2:1 configuration. The

device works well with dual supplies (±5 V to ±22 V),

a single supply (8 V to 44 V), or asymmetric supplies

(such as VDD = 12 V, VSS = –5 V). The overvoltage

protection is available in powered and powered-off

conditions, making the TMUX7436F device suitable

for applications where power supply sequencing

cannot be precisely controlled.

The device blocks fault voltages up to +60 V or

−60 V relative to ground in powered and powered-off

conditions. When no power supplies are present, the

switch channels remain in the OFF state regardless of

switch input conditions, and any control signal present

on the logic pins is ignored. If the signal path input

voltage on any Sx pin exceeds the supply voltage

(VDD or VSS) by a threshold voltage (VT), then the

channel turns OFF and the Sx pin becomes high

impedance. The drain pin (Dx) is either pulled to the

fault supply voltage that was exceeded or left floating

depending on the DR control logic. The TMUX7436F

device provides two active-low interrupt flags (FF and

SF) to provide details of the fault and help system

diagnostics. The FF flag indicates if any of the source

inputs are experiencing a fault condition, while the

SF flag is used to decode which specific inputs are

experiencing a fault condition.

Package Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMUX7436F

PW (TSSOP, 16)

5.00 mm × 4.40 mm

RRP (WQFN, 16)(2)

4.00 mm × 4.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

Preview package

TMUX7436F

SCDS459A – OCTOBER 2022 – REVISED NOVEMBER 2022

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

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