SFFS422
May 2022
Trademarks
2
1
Scope
2
Related Documents
3
Related Standards and Acronyms
4
Concept Overview
4.1
System Block Diagram
4.2
System Specifications
4.3
Conditions of use: Assumptions
4.3.1
Generic Assumptions
4.3.2
Specific Assumptions
4.4
Safe Torque Off Implementation
4.4.1
Subsystem Elements
4.4.2
STO Safe Subsystem States and Timing Diagram
4.4.3
STO_1 Subsystem
4.4.4
STO_2 Subsystem
4.4.5
MCU (SIL 1) Diagnostic Coverage
4.4.6
STO_FB Subsystem
4.4.7
Information on ICs
4.4.7.1
Isolated 24-V Input Receiver
4.4.7.2
Load Switch: TPS22919
4.4.7.3
High-Side Switch: TPS27S100
4.4.7.4
Isolated Gate Driver: ISO5852S (ISO5452)
4.5
Safe State
5
Concept FMEA
5.1
System FMEA
6
References
Trademarks
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