The old PGOOD pin was a simple open-drain output that pulled low if VOUT dropped by >10%. The updated schematic routes PGOOD to both the EC and the main CPU SVID chip. If the 1.8V_VA rail glitches, the CPU now receives an immediate PROCHOT (Processor Hot) signal—throttling the CPU before data corruption occurs. Look for the new 1kΩ series resistor on the PGOOD line—it’s a subtle addition, but it prevents bus contention.
Title: ILPI354 VA Schematic Update – Revision [Insert Rev Number]
Description: This document authorizes the release of the updated schematic diagram for the ILPI354 Voltage Amplifier (VA) module. This update supersedes the previous revision [Insert Old Rev] and incorporates necessary design modifications to enhance signal integrity and thermal performance.
Key Changes Included:
Action Required: All relevant departments (Design, PCB Layout, Procurement) must update their databases to reflect the current revision. Please archive previous schematic versions to prevent manufacturing discrepancies. ilpi354 va schematic upd
A: Some clones omit pin 8 internally. In that case, do not rely on external 5V; use a separate 7805 regulator.
1. Title
Technical Analysis Report: ILPI354 VA Power Supply / Inverter Board Schematic Update
2. Revision History
| Version | Date | Author | Changes |
|---------|------|--------|---------|
| 1.0 | [Date] | [Name] | Initial schematic update |
3. Introduction
4. Schematic Key Components (based on typical ILPI series)
5. Changes in Updated Schematic
| Ref Des | Old Value/Part | New Value/Part | Reason |
|---------|----------------|----------------|--------|
| IC1 | [old] | [new] | EOL / better efficiency |
| Rxx | [value] | [value] | Adjust feedback loop |
| Cxx | [rating] | [rating] | Ripple improvement |
6. Test & Validation
7. Bill of Materials (BOM) – Updated
| Ref Des | Part Number | Manufacturer | Qty | The old PGOOD pin was a simple open-drain
8. Known Issues & Mitigations
9. Conclusion
Schematic update verified. Recommend prototype testing before mass production.
10. Appendix
A: No official datasheet exists publicly. This article is based on reverse-engineered boards. For verified diagrams, use repair forums like Badcaps.net or ElektroTanya. Ground: multiple GND pins and shield ground