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IEC 60730 Functional Safety for 32-bit MCUs in Household Appliances
Home appliances require functional safety for many applications ranging from cooktops to robotic vacuums. IEC 60335 refers to the IEC 60730 standard for electronic controls of these appliances, and IEC 60730 is currently mandatory for home appliances sold in Europe and worldwide.
Typically, there are three different safety levels for IEC 60730—Class A, Class B and Class C. In general, Class B is the targeted safety level for 32-bit MCUs. Class C is a higher safety level requirement used in gas burners. Annex H in IEC 60730-1 defines the safety requirements for electronic controls and Table H.1 (H.11.12.7 in Edition 3) defines the acceptable measures to address faults and errors.
Uses for Functional Safety Ready 32-bit MCUs
You can use our 32-bit microcontrollers (MCUs) as User Interface (UI) controllers for mechanical and capacitive buttons in appliances.
Our MCUs can also function as main controllers to safely measure temperature, pressure, current, particle density and many other sensory signals that control the operation of appliances.
They can also be used in motor control applications such as robotic vacuum cleaners.
Higher safety levels, such as IEC 60730 Class C, require hardware redundancy in 32-bit MCUs and other hardware.
Supporting Collateral for Functional Safety Ready MCUs
Simplify the safety certification of your appliance safety designs using our IEC 60730 functional safety resources.
- UL- and/or VDE-certified Class B Library
- Development ecosystem for functional safety applications with a TÜV SÜD-certified MPLAB® XC compiler and a qualification package for the MPLAB ecosytem
Note that a certified functional safety compiler is not required for Class B applications.
IEC 60730 Diagnostic Test Libraries for 32-bit MCUs
Whether you are new to IEC 60730 functional safety or a seasoned expert, you can count on our proven experience and solutions to help you meet functional safety requirements while minimizing cost, risk and development time.
The IEC 60730 Class B library is a software library that contains all the diagnostic tests required by the IEC 60730 standard to submit your product for Class B certification. The library is certified by VDE and/or UL and is distributed via MPLAB Harmony v3 or a website download. The SAM D2x/SAM C2x Class B library was created by Hitex and is available as a download.
Required Diagnostics Test for IEC 60730 Class B Certification
32-bit MCUs With IEC 60730 Functional Safety Libraries
You can find an overview of the available libraries and the corresponding certificates and documentation below. We continuously expand the functional safety collateral and device support for our 32-bit MCUs to meet the changing requirements of functional safety applications.
Notes:
- The VDE test report is in process and will be published once completed
- The SAM D2x/C2x Class B Library was created by Hitex, a third-party partner
Functional Safety Ecosystem
When you are designing functional safety applications, using development tools that meet the requirements of safety standards can make it easier for you to create compliant systems. To help you with implementing system-level functional safety in your applications, our MPLAB XC C compilers are TÜV SÜD-certified for several functional safety standards. We also provide the complete certification packages for our MPLAB development tools ecosystem to help you qualify your projects.
MPLAB X IDE
Organize, write, test and debug your embedded software applications in MPLAB X IDE.
MPLAB XC Compiler
Build your embedded software with the TÜV SÜD-certified MPLAB XC32 Pro Functional Safety Compiler.
MPLAB Code Coverage
Verify and document your software test coverage with the MPLAB Code Coverage tool.
