ZHCSEG6F December 2015 – May 2025 TCAN330 , TCAN330G , TCAN332 , TCAN332G , TCAN334 , TCAN334G , TCAN337 , TCAN337G
PRODUCTION DATA
The bus pins of the TCAN33x family possess on-chip ESD protection against ±25kV human body model (HBM) and ±12kV IEC61000-4-2 contact discharge. The IEC-ESD test is far more severe than the HBM-ESD test. The 50% higher charge capacitance, CS, and 78% lower discharge resistance, RD of the IEC model produce significantly higher discharge currents than the HBM-model.
As stated in the IEC 61000-4-2 standard, contact discharge is the preferred test method; although IEC air-gap testing is less repeatable than contact testing, air discharge protection levels are inferred from the contact discharge test results.
Figure 6-2 HBM and IEC-ESD Models and Currents in Comparison (HBM Values in Parenthesis)