Overview
IEC 62433-1:2019 - EMC IC modelling: Part 1: General modelling framework defines a standardized framework and methodology for electromagnetic compatibility (EMC) macro‑modelling of integrated circuits (ICs). It replaces IEC TS 62433-1:2011 and introduces a standardized data exchange format for IC model representation (including incorporation of the July 2020 corrigendum). The standard establishes common terms, modelling approaches and the structure required to describe IC behaviour for EMC analysis.
Key Topics and Requirements
- Scope and terminology: Defines terms, abbreviations and conventions used across the IEC 62433 series to ensure consistent model interpretation.
- Model categories: Standardizes descriptions for conducted emission, radiated emission, conducted immunity, radiated immunity, and conducted pulse immunity models.
- Modelling approaches: Describes applicable approaches such as black‑box macromodels, equivalent circuit models, and other methods (electromagnetic and statistical approaches).
- Model description requirements: Specifies mandatory information and structure that an EMC IC macromodel must include to be useful and interoperable.
- Data exchange format (IC_EMCML): Introduces an XML‑based structure for model exchange, detailing elements like root/global/header, lead definitions, macromodels, frequency/validity ranges, PDN (power distribution network) data, and test vectors.
- Normative annexes: Provide requirements for model content and preliminary XML definitions, plus exhaustive keyword/element lists for IC_EMCML.
Applications
- System‑level EMC prediction: Use IC macromodels in PCB and system simulations to predict conducted and radiated emissions or susceptibility.
- Design for EMC: IC designers can supply standardized macromodels to enable board designers to assess EMC early in the design cycle.
- Tool interoperability: The IC_EMCML XML format facilitates exchange between IC vendors, EDA/simulation tools and test labs.
- Compliance planning and test correlation: Helps correlate simulation results with laboratory measurements and informs mitigation strategies (filtering, layout changes, PDN design).
Who Should Use This Standard
- EMC and signal‑integrity engineers
- IC designers and device vendors
- EDA and simulation tool developers
- Test laboratories and certification bodies
- System integrators responsible for EMC compliance
Related Standards
- Other IEC EMC standards (for measurement and immunity requirements), and international measurement series such as CISPR and the IEC 61000 family are complementary when applying IC macromodels for compliance and testing.
Keywords: IEC 62433-1, EMC IC modelling, IC macromodel, IC_EMCML, data exchange format, EMC modelling, conducted emission, radiated emission, PDN modelling, XML model format.