Schematic Layout and Wiring
Thought for 10 mins 10 sec
Thought for 6 sec
2/2 Independently review the power block and resolve critical findings.
Add a reference-based i.MX8M Mini PMIC and supporting power circuitry.
Independently review the power block and resolve critical findings.
Thought for 12 sec
Awaiting 1 task
"i.MX8MM Power Review" completed.
Worked for 35 sec
Created a project doc
PMIC implementation status
PMIC implementation status
Status
Power block added but NOT approved for fabrication or power-up. Execution stopped at account ACU limit before review fixes. PCB layout and schematic drawing were not changed. Supplier preference is Mouser/DigiKey equally, Arrow or comparable major suppliers acceptable; current manufacturing profile still lists LCSC.
Implemented (build report, not yet independently repaired)
- U31 implemented with PCA9450CHNY library identity and manufacturer part number overridden to PCA9450AAHNY. This is NOT approval to buy a C variant. Resolve dedicated AA library part and audit physical mapping/BOM before release. NXP datasheet https://www.nxp.com/docs/en/data-sheet/PCA9450.pdf .
- L100–L105 Murata DFE201612E-R47M 0.47 uH; C100–C121 support; R100–R105; Y100...
I added the PMIC circuit, six inductors, support capacitors, processor decoupling and power/reset connections. It is not ready for power-up or fabrication: review found an unreliable processor footprint/pin mapping, an unresolved PMIC library identity, incomplete DDR4 circuitry and an unverified upstream power budget; details are saved in PMIC implementation status.
Two decisions remain:
- May I replace the relabelled PMIC library entry with a verified PCA9450AAHNY part? That is my recommendation for U31 and its supply/control connections.
- Should I retain DDR4—my recommendation—and complete its memory bus,
DRAM_ZNresistor, 2.5 V VPP supply and validated startup configuration, or change to LPDDR4?
Execution stopped because your account ran out of ACUs.
Waiting for input
