Test Plan Development Guidelines
1:38
Project
Comprehensive Test Plan for “Extra Pink Matter Compiler” PCB Project
1. Testing Scope
2. Test Objectives
4. Test Categories & Sample Test Cases
5. Test Environment Setup
6. Automation Strategies
7. Edge Cases & Exception Tests
8. Potential Risks & Mitigations
9. Recommendations for Improving Coverage & Reliability
1. Testing Scope
- Validate correct electrical functionality of all circuits (power rails, signal paths, protection).
- Verify mechanical and thermal robustness under expected operating conditions.
- Ensure compliance with environmental and reliability requirements.
- Confirm communication interfaces operate per specification.
- Assess design margins and identify failure modes.
2. Test Objectives
- Prove that the board meets its electrical specifications (voltage levels, current limits, signal integrity).
- Demonstrate thermal performance remains within safe limits.
- Validate mechanical fit, connector robustness, and solder joint integrity.
- Confirm environmental resilience (temperature cycling, humidity, vibration).
- Verify all interfaces (e.g., I/O headers, debug ports) function reliably.
3. Key Requirements to Validate
| Requirement Type | Description |
|---|---|
| Functional | Power-up sequencing, regulator outputs, logic signals |
| Electrical | Voltage accuracy (±5%), current capacity, EMI/EMC compliance |
| Thermal | Maximum operating temperature ≤ 85 °C, hotspot ≤ 10 °C above ambient |
| Mechanical | Connector insertion force ≤ spec, board thickness and mounting fit |
| Environmental | Operate from –40 °C to +85 °C, humidity 85% RH non-condensing |
| Communication & Interface | Data transfer rates, protocol compliance, signal eye patterns |
| Reliability | MTBF > 50,000 hours; no solder joint fatigue under vibration |
4. Test Categories & Sample Test Cases
4.1 Electrical Testing
| Test ID | Test Case | Procedure | Expected Outcome | Pass/Fail Criteria |
|---|---|---|---|---|
| ET-01 | Power-On Rail Voltages | Apply 0–5 V input ramp; measure each regulator output with DMM | 3.3 V ±5%, 5 V ±5% | All rails within tolerance |
| ET-02 | Short-Circuit Current Limit | Short each rail to GND; observe current draw and shutdown action | Current ≤ spec, no board damage | Limit trips and resets correctly |
| ET-03 | Signal Integrity on High-Speed Net | Inject PRBS pattern at max data rate; capture with scope | Eye diagram meets mask per spec | No more than 1 bit error per 10⁶ bits |
4.2 Thermal Testing
| Test ID | Test Case | Procedure | Expected Outcome | Pass/Fail Criteria |
|---|---|---|---|---|
| TT-01 | Steady-State Thermal Profile | Power board at full load in thermal chamber at 25 °C | Max component temp ≤ 85 °C | ΔT ≤ 60 °C above ambient |
| TT-02 | Thermal Cycling | Cycle −40 °C ↔ +85 °C, 30 min dwell, 100 cycles | No functional failures after test | 100% pass on power-up and self-tests |
4.3 Mechanical Testing
| Test ID | Test Case | Procedure | Expected Outcome | Pass/Fail Criteria |
|---|---|---|---|---|
| MT-01 | Connector Durability | Mate/unmate connectors 100× | No bent pins, reliable contact | Resistance ≤ spec after cycle |
| MT-02 | Vibration & Shock | MIL-STD-810G Method 514.6, 5 g, 10 –500 Hz, 1 hour per axis | No loosened components or cracks | Functional post-test, no opens |
4.4 Environmental Testing
| Test ID | Test Case | Procedure | Expected Outcome | Pass/Fail Criteria |
|---|---|---|---|---|
| ET-01 | Humidity Resistance | 85% RH, 85 °C for 96 hours | No corrosion or leakage currents | Insulation resistance ≥ spec |
| ET-02 | Salt Spray | 5% NaCl fog per ASTM B117, 48 hours | No conductive corrosion | Board functions normally |
4.5 Communication & Interface Testing
| Test ID | Test Case | Procedure | Expected Outcome | Pass/Fail Criteria |
|---|---|---|---|---|
| CI-01 | UART Loopback | Send known byte stream at 115 200 bps; verify reception | No framing or parity errors | BER ≤ 10⁻⁶ |
| CI-02 | I²C Pull-Up Resistor Verification | Measure bus rise time; check ACK/NACK at 400 kHz | Rise time within 300 ns, ACK reliable | Meets I²C timing specs |
5. Test Environment Setup
- Test Fixtures: Custom PCB socket, clip-on current probes, thermal chamber, vibration shaker.
- Instruments: DMM, oscilloscope (≥500 MHz), spectrum analyzer, data-logging power supply.
- Software: Automated test scripts (Python + PyVISA), data logging and reporting tools.
- Jigs: Breakout harness for connectors, back-plane simulator for interface emulation.
6. Automation Strategies
- Scripted Electrical Tests: PyVISA-based control of power supply and DMM for voltage/current sweeps.
- Thermal Chamber Control: Automated logging of board temperature vs. time.
- Continuous Integration: Integrate hardware-in-the-loop on Jenkins to run regression tests on each design update.
- Data Management: Store results in a centralized database, auto-generate pass/fail reports.
7. Edge Cases & Exception Tests
- Brown-Out Conditions: Ramp input voltage below minimum; verify safe shutdown and brown-out recovery.
- Over-Temperature: Force local heating; ensure thermal cut-off or safe-shutdown behavior.
- ESD/EMI Immunity: Apply IEC 61000-4-2 ESD pulses; verify no latch-up or functional faults.
- Power Sequencing Violations: Apply rails out of order; check compliance with recommended startup/shutdown.
8. Potential Risks & Mitigations
-
Risk: Insufficient decoupling leads to EMI failures.
Mitigation: Add additional high-frequency caps close to ICs; re-run EMC pre-compliance scans. -
Risk: Connector insertion damage under vibration.
Mitigation: Specify locking connectors or retention clips; perform extended durability tests. -
Risk: Thermal hotspots on dense IC clusters.
Mitigation: Introduce copper pours, thermal vias, or add heatsinking components.
9. Recommendations for Improving Coverage & Reliability
- Increase Test Points: Add board test-point footprints for critical nets to simplify debug and automation.
- Expand Environmental Range: Include low-pressure (<10 kPa) testing if product used at altitude.
- Design for Testability: Implement boundary-scan (JTAG) or built-in self-test (BIST) for digital sections.
- Formalize Demo Scripts: Create standardized “first-power” and “regression” scripts to ensure consistency.
- Review BOM Alternatives: Lock critical parts with long lead times; qualify second sources.
End of Test Plan
This structured plan ensures methodical coverage of functional, electrical, thermal, mechanical, environmental, and interface requirements, emphasizing automation and risk mitigation to deliver a reliable, production-ready design.
Automate voltage sweep
ESD test setup
Select connector clip
Design pogo-pin fixture
CI integration
254 days
Ready.
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #genericsjharwinbarrozo15.4k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Inspect
Extra Pink Matter Compiler
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $0.01–$0.01 | |
| Digi-Key | $0.01–$0.10 | |
| LCSC | $0.00 | |
| Mouser | $0.10 | |
| Verical | $0.01–$0.01 | |
Assets
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