SDAA468 August   2026 MSPM0G3107-Q1 , TPS388R0-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Detailed Description
    1. 2.1 Item definition
    2. 2.2 Assumptions
    3. 2.3 Hazard Analysis and Risk Assessment (HARA)
      1. 2.3.1 Safety Goal Definition
      2. 2.3.2 Safe State "Microcontroller Power-Cycle"
    4. 2.4 Functional Safety Concept
      1. 2.4.1 System Architecture
      2. 2.4.2 Safety Architecture
    5. 2.5 Technical Safety Concept
      1. 2.5.1 Device Description
        1. 2.5.1.1 MSPM0G3107-Q1
        2. 2.5.1.2 TPS388R0x-Q1
        3. 2.5.1.3 TPS3842C011-Q1
        4. 2.5.1.4 TPS22919-Q1
      2. 2.5.2 Implementation Details
        1. 2.5.2.1 Design Parameters
        2. 2.5.2.2 Overvoltage Protection Circuit (OVP)
        3. 2.5.2.3 Application Power Up and Power Down
        4. 2.5.2.4 TPS388R02-Q1 Software-less Operation
        5. 2.5.2.5 VCORE and VDD Monitoring
      3. 2.5.3 Monitoring Mechanisms
        1. 2.5.3.1 Monitoring VIN Supply Rail for OV Fault Including Protection
        2. 2.5.3.2 Monitoring MCU Supply Voltages for UV or OV Faults
        3. 2.5.3.3 Monitoring CPU processing Unit Program Flow
      4. 2.5.4 FMEA
        1. 2.5.4.1 Safety Mechanisms
          1. 2.5.4.1.1 SM1: MSPM0G3107-Q1 BIST and Software Test
          2. 2.5.4.1.2 SM2: TPS388R02-Q1 BIST and Internal Fault Detection
          3. 2.5.4.1.3 SM3: MSPM0G3107-Q1 VCORE Monitoring
          4. 2.5.4.1.4 SM4: MSPM0G3107-Q1 VDD Monitoring
          5. 2.5.4.1.5 SM5: Overvoltage Protection
    6. 2.6 Technical Safety Requirements
      1. 2.6.1 FMEDA for Safety Goal SG_01
        1. 2.6.1.1 Notes
      2. 2.6.2 Quantitative Results
  6. 3Summary
  7. 4References

References

  1. Texas Instruments, MSPM0 MCU Advantages in Automotive Application, technical white paper
  2. Texas Instruments, Functional Safety Manual for MSPM0G3x0x-Q1, functional safety manual
  3. Texas Instruments, MSPM0 G-Series 80-MHz Microcontrollers Technical Reference Manual, user guide
  4. Texas Instruments, TPS388 Functional Safety Information (available upon request)
  5. Texas Instruments, TPS3842-Q1 Functional Safety FIT Rate, FMD and Pin FMA, functional safety information
  6. Alessandro Birolini, Reliable Engineering, 8th Edition, ISBN 978-3-662-54208-8
  7. Texas Instruments, MSPM0G310x-Q1 Automotive Mixed-Signal Microcontrollers With CAN-FD Interface, datasheet
  8. Texas Instruments, TPS38800-Q1/TPS388R0-Q1 Multichannel Overvoltage and Undervoltage I2C Programmable Voltage Supervisor, datasheet
  9. Texas Instruments, Prefiltered list of ISO26262-compliant MSPM0x devices, webpage
  10. Texas Instruments, MSPM0 External VCore monitoring for ASIL B requirements, application note