I reviewed the uploaded Claude spec and worklist. I would not ingest it blindly because it conflicts with our current project spec in several important places:
MCU conflict
Current spec: PSB3014, 87-BGA.
Claude spec: PSB3112, 68-DRQFN.
This is a major architecture/package change and needs your approval before schematic.
Current transformer conflict
Current spec: Triad CST-1020.
Claude spec/worklist: Talema AC-1020.
Talema may be better thermally, but we need to verify UL file, ratio, footprint, accuracy, phase, and stock before replacing CST-1020.
Power tree changed
Current spec has +12 V and +3.3 V.
Claude adds a dedicated +5 V LED buck and USB/debug/service additions. Reasonable, but not previously committed.
Schematic capture order is good
I agree with Claude’s 12-sheet structure and with capturing Sheet 1: AC input & protection first after reconciliation.
Recommended next step: I should create a short spec reconciliation checklist and then update the canonical project spec to either adopt or reject Claude’s changes. The key decision needed from you first is:
Do you want to switch from PSB3014 to PSB3112, or keep PSB3014 as originally selected?
Understood — I’ll keep PSB3014 as the canonical MCU and mark the PSB3112 change from the Claude spec as rejected unless future verification shows a compelling reason to switch.
Confirmed and documented: PSB3014 remains the canonical MCU, and the Claude-spec PSB3112 migration is rejected unless future evidence gives a strong reason to switch.
Next best step: rebuild the MCU pin assignment for PSB3014, then continue reconciling CT choice, ADC clock source, and LED/power architecture before Sheet 1 schematic capture.
Created 2026-06-10. Use this file to track which items from the uploaded Claude-generated schematic specification/worklist are adopted, rejected, or pending verification before schematic capture.
Canonical MCU Decision
Adopt: Keep Infineon PSB3014 as the canonical MCU for this PDU.
Reject for now: Do not migrate to PSB3112 / 68-DRQFN from the uploaded Claude spec unless later verification finds a strong reason to switch.
Reasons to reconsider would include materially better orderability, lifecycle status, reference design support, RF implementation support, assembly risk, GPIO/peripheral fit, or package availability.
Uploaded Claude Spec Items to Treat Carefully
PSB3112 pin table and Sheet 7 MCU core
Not directly usable while PSB3014 remains selected.
Must be rebuilt from the PSB3014 datasheet/reference design and package pinout.
Parts worklist U_MCU entry
Replace PSB3112 worklist item with PSB3014 part/library ingestion.
Sheet order
Adopt the 12-sheet capture structure as a useful schematic organization pattern.
Update MCU-related nets/pins for PSB3014 before capture.
CT substitution
Claude spec uses Talema AC-1020; current canonical spec uses Triad CST-1020.
Do not replace CST-1020 until Talema AC-1020 is verified for UL/recognition, ratio, footprint, low-current accuracy, phase error, temperature rating, and stock.
Added +5 V LED rail and service/debug features
Potentially useful, but not automatically adopted until power budget and LED architecture are confirmed.
Recommended Pre-Schematic Reconciliation Order
Rebuild the MCU pin assignment for PSB3014.
Decide whether to evaluate Talema AC-1020 against Triad CST-1020.
Finish the ADC shared 8.192 MHz oscillator selection/verification.
Confirm LED driver/power rail architecture.
Then begin Sheet 1 capture: AC input and protection.