SBOSAF3 November 2023 TMCS1126
ADVANCE INFORMATION
The separation between the input conductor and the Hall sensor die due to the TMCS1126 construction provides inherent galvanic isolation between package pins 1 and 2 on the high-voltage input side, and package pins 3 through 10 on the low-voltage output side. Insulation capability is defined according to certification agency definitions and using industry-standard test methods as defined in Insulation Specifications. Assessment of device lifetime working voltages follow the VDE 0884-11 standard for reinforced insulation, requiring time-dependent dielectric breakdown (TDDB) data-projection failure rates of less than 1 part per million (ppm), and a minimum insulation lifetime of 30 years. The VDE standard also requires additional safety margins of 20% for working voltage, and 30% for insulation lifetime, translating into a minimum required lifetime of 39 years at 900 VRMS for the TMCS1126.