TUV-assessed digital input reference design for IEC 61508 (SIL-2) TIDA-010049 (ACTIVE)

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Key Document

Description

This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been assessed by TUEV SUED (TÜV SÜD) and helps designers meet system compliances of IEC61508-2:2010 (SIL2) and EN13849-1:2015 (Cat2 PLd). Additionally, this design has a hardware fault tolerance (HFT) of 0 (1oo1D architecture) and digital inputs designed to comply with IEC61131-2 (type 1) recommendations.

Features
  • Group-isolated 8-channel digital input compliant to IEC61131-2 (type 1)
  • Concept meets requirements of IEC61508-2:2010 (SIL2) and EN13849-1:2015 (Cat2 PLd) (assessed by TÜV SÜD)
  • Diagnostics and monitoring features
  • Miswiring protection (reverse polarity, digital input short/open/cross-wire)
  • Small footprint

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Design Files

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TI Devices (19)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18541F5  60V, N ch NexFET MOSFET?, single LGA 1.5 x 0.8mm, 65mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
ISO7741  High-speed, low-power, robust EMC quad-channel digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM5166  3V-65V Input, 500mA Synchronous Buck Converter With Ultra-Low Iq  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LMR36006  4.2-V to 60-V, 0.6-A ultra-small synchronous step-down converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
REF3030  3.0V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference  Voltage references  Sample & Buy Not Available
RM41L232  16/32 Bit RISC Flash MCU, Arm Cortex-R4F  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
SN74AHC594  8-Bit Shift Registers With Output Registers  Flip-flop/latch/register  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G11  Single 3-Input Positive-AND Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G125  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G132  Dual 2-Input NAND Gate with Schmitt-Trigger Inputs  Gate  Sample & Buy View Design Kits & Evaluation Modules
TL431LI  Adjustable precision shunt regulator with optimized reference current  Voltage references  Sample & Buy Not Available
TLV9001  1-Channel, 1MHz, RRIO, 1.8V to 5.5V Operational Amplifier for Cost-Optimized Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TMP302  Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPS22917  Ultra-Low Leakage, 5.5-V, 2-A, 80-mΩ On-Resistance Load Switch  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS2662  60V 800mA Industrial eFuse With Integrated Reverse Polarity Protection  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3700  High-voltage (18-V) window voltage detector for OV & UV monitoring  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS3852  High-Accuracy Voltage Supervisor With Programmable Window Watchdog Timer  Power management  Sample & Buy Not Available
TPS62230  2 MHz Ultra Small Step Down Converter with DCS-Control in 1x1.5 SON Package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TVS0500  5V flat-clamp surge protection device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7741 Download Download
Download Download
LM5166 Download Download
LMR36006 Download Download
REF3030 Download Download
RM41L232 Download Download
SN74AHC594 Download Download
Download Download
Download Download
Download Download
Download Download
SN74LVC1G11 Download Download
Download Download
Download Download
Download Download
Download -
SN74LVC1G125 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
SN74LVC2G132 Download Download
Download Download
Download -
TL431LI Download Download
TLV9001 Download -
Download Download
Download Download
Download
TMP302 Download Download
TPS22917 Download Download
TPS2662 Download -
TPS3700 Download
Download Download
TPS3852 Download Download
TPS62230 Download Download
TVS0500 Download Download

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Technical Documents

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User guides (2)
Title Type Size (KB) Date
PDF 658 07 Jun 2019
PDF 1615 05 Jun 2019
Design files (6)
Title Type Size (KB) Date
ZIP 589 05 Jun 2019
ZIP 2441 05 Jun 2019
PDF 2566 05 Jun 2019
PDF 510 05 Jun 2019
PDF 49 05 Jun 2019
PDF 769 05 Jun 2019
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
8 Channel, 2-A High-Side Driver Reference Design for Digital Output Modules  TIDA-01552  TI Designs

Development Tools (3)

Name Part Number Tool Type
XDS200 USB Debug Probe  TMDSEMU200-U  Debug Probes/Analyzers 
Code Composer Studio (CCS) Integrated Development Environment (IDE)  CCSTUDIO  SW Development Tools, IDEs, Compilers 
Hardware Abstraction Layer Code Generator for Hercules MCUs  HALCOGEN  SW Development Tools, IDEs, Compilers 

Models (1)

Title Category Type Size (KB) Date Views
TIDA-010049 Simulation TINA-TI Reference Design ZIP 38 KB 05 Jun 2019

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