Community PCB Design PSpice Derating Analysis for component reliability in PSpice

Stats

  • Replies 1
  • Subscribers 12
  • Views 1425
  • Members are here 0
More Content

Derating Analysis for component reliability in PSpice

DesignTech

Smoke Analysis in PSpice warns of component stress due to power dissipation, increase in junction temperature, secondary breakdowns, or violations of voltage / current limits. Over time, these stressed components could cause circuit failure.

Smoke uses Maximum Operating Conditions (MOCs), supplied by vendors and derating factors supplied by designers to calculate the Safe Operating Limits (SOLs) of a component’s parameters. It then compares circuit simulation results to the component’s safe operating limits. If the circuit simulation exceeds the safe operating limits, Smoke identifies the problem parameters.

You can use Smoke Analysis for Displaying Average, RMS, or Peak values from simulation results and comparing these values against corresponding safe operating limits.

You can use standard derating or a custom derating file for setting derating factors for different parameters of the components in your design.

Checkout the quick tutorial video here.

 

Team DesignTech

Cadence Design Systems

  • What is the typical derating value users can set for components. How can he gauge this should have 0.8, other should have 0.5 & others with different value. Is it all defined in the datasheet or somewhere else.

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.