Industrial FPGA Design Guide
💡 FAE Insights
📋 Customer Cases
Process Control OEM
Chemical Processing
Challenge
Needed reliable controller for hazardous environment
Solution
Followed industrial design guide for protection and reliability
Customer Feedback
"The industrial design practices eliminated the reliability issues we had with previous designs."
Results
- Zero field failures in 3 years
- Passed SIL 2 certification
- Met all environmental specs
Frequently Asked Questions
1. What protection do I need for industrial I/O?
Industrial I/O protection: (1) Isolation - Use optocouplers or digital isolators. (2) TVS - Transient voltage suppression diodes. (3) Filtering - RC filters on inputs. (4) Current Limit - Series resistors to limit fault current. (5) ESD - Protection against electrostatic discharge. Never connect FPGA pins directly to field wiring.
2. How do I handle EMI?
EMI mitigation: (1) Shielding - Metal enclosure for high-EMI environments. (2) Filtering - Input/output filters on all lines. (3) Grounding - Single-point ground strategy. (4) Layout - Minimize loop areas. (5) Cables - Shielded cables for external connections. (6) Testing - EMC testing early in design. Proper EMI design prevents interference issues.
3. What about safety systems?
Safety system design: (1) Standards - Follow IEC 61508 for SIL. (2) Architecture - Dual-channel with diagnostics. (3) Diagnostics - Continuous self-testing. (4) Response - Defined safe states on failure. (5) Documentation - Safety manual and FMEDA. (6) Certification - Use certified test labs. Safety requires systematic approach throughout design.
4. How do I ensure long-term availability?
Availability assurance: (1) Selection - Choose industrial-grade devices. (2) LTA - Negotiate long-term agreement. (3) Stocking - Maintain buffer inventory. (4) PCN - Product change notification process. (5) Alternates - Identify second sources. (6) Documentation - Full configuration control. Plan for 10-15 year product lifecycle.
5. What environmental testing is needed?
Environmental testing: (1) Temperature - Verify operation at extremes. (2) Humidity - High-humidity operation testing. (3) Vibration - Transportation and operation vibration. (4) Shock - Mechanical shock survival. (5) EMI - Radiated and conducted emissions. (6) ESD - Electrostatic discharge immunity. Test to actual environmental requirements.