SFFS422 May   2022

1.   Trademarks
2.   2
3. 1Scope
4. 2Related Documents
5. 3Related Standards and Acronyms
6. 4Concept Overview
   1. 4.1 System Block Diagram
   2. 4.2 System Specifications
   3. 4.3 Conditions of use: Assumptions
      1. 4.3.1 Generic Assumptions
      2. 4.3.2 Specific Assumptions
   4. 4.4 Safe Torque Off Implementation
      1. 4.4.1 Subsystem Elements
      2. 4.4.2 STO Safe Subsystem States and Timing Diagram
      3. 4.4.3 STO_1 Subsystem
      4. 4.4.4 STO_2 Subsystem
      5. 4.4.5 MCU (SIL 1) Diagnostic Coverage
      6. 4.4.6 STO_FB Subsystem
      7. 4.4.7 Information on ICs
         1. 4.4.7.1 Isolated 24-V Input Receiver
         2. 4.4.7.2 Load Switch: TPS22919
         3. 4.4.7.3 High-Side Switch: TPS27S100
         4. 4.4.7.4 Isolated Gate Driver: ISO5852S (ISO5452)
   5. 4.5 Safe State
7. 5Concept FMEA
   1. 5.1 System FMEA
8. 6References