SCDS400B
march 2022 – july 2023
TMUX7348F
,
TMUX7349F
PRODMIX
1
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Thermal Information
7.4
Recommended Operating Conditions
7.5
Electrical Characteristics (Global)
7.6
±15 V Dual Supply: Electrical Characteristics
7.7
±20 V Dual Supply: Electrical Characteristics
7.8
12 V Single Supply: Electrical Characteristics
7.9
36 V Single Supply: Electrical Characteristics
7.10
Typical Characteristics
8
Parameter Measurement Information
8.1
On-Resistance
8.2
Off-Leakage Current
8.3
On-Leakage Current
8.4
Input and Output Leakage Current Under Overvoltage Fault
8.5
Break-Before-Make Delay
8.6
Enable Delay Time
8.7
Transition Time
8.8
Fault Response Time
8.9
Fault Recovery Time
8.10
Fault Flag Response Time
8.11
Fault Flag Recovery Time
8.12
Charge Injection
8.13
Off Isolation
8.14
Crosstalk
8.15
Bandwidth
8.16
THD + Noise
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Flat ON- Resistance
9.3.2
Protection Features
9.3.2.1
Input Voltage Tolerance
9.3.2.2
Powered-Off Protection
9.3.2.3
Fail-Safe Logic
9.3.2.4
Overvoltage Protection and Detection
9.3.2.5
Adjacent Channel Operation During Fault
9.3.2.6
ESD Protection
9.3.2.7
Latch-Up Immunity
9.3.2.8
EMC Protection
9.3.3
Overvoltage Fault Flags
9.3.4
Bidirectional and Rail-to-Rail Operation
9.3.5
1.8 V Logic Compatible Inputs
9.3.6
Integrated Pull-Down Resistor on Logic Pins
9.4
Device Functional Modes
9.4.1
Normal Mode
9.4.2
Fault Mode
9.4.3
Truth Tables
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.3
Application Curves
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RTJ|20
MPQF156F
PW|20
MPDS362A
Thermal pad, mechanical data (Package|Pins)
RTJ|20
QFND016S
Orderable Information
scds400b_oa
scds400b_pm
11.1.1
Related Documentation
Texas Instruments,
Eliminate Power Sequencing with Powered-Off Protection Signal Switches
application brief
Texas Instruments,
Implications of Slow or Floating CMOS Inputs
application note
Texas Instruments,
Improving Analog Input Modules Reliability Using Fault Protected Multiplexers
application report
Texas Instruments,
Multiplexers and Signal Switches Glossary
application report
Texas Instruments,
Protection Against Overvoltage Events, Miswiring, and Common Mode Voltages
application report
Texas Instruments,
Using Latch-Up Immune Multiplexers to Help Improve System Reliability
application report