Airwire Fill Error
The "Airwires" review flagged a error on Fill:Fill, U1:DEVSLP.
Reports missing routed traces between pads in a net.
Designators: Fill:Fill, U1:DEVSLP
Context: Reports missing routed traces between pads in a net.
Help me fix this.
Thought for 9 sec
I’ll inspect the DEVSLP net and the reported fill connection, repair the missing route, then rerun the airwire check.
Worked for 1 min 20 sec
I confirmed the reported connection is U1:DEVSLP to the GND copper fill; the GND fill is not physically connected to that pad. Routing is currently blocked by a board-definition validation error, and I couldn’t continue because the account has no available ACUs.
Remaining: resolve the board validation error, then add a short GND connection or via from U1:DEVSLP into the GND fill and rerun the Airwires review.
Inspect validation error
Locate DEVSLP fill
Verify DEVSLP grounding
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Design Notes
Requirements and power budget
- Nominal rail: 5 V
- Recommended continuous load: 4.0 A (20 W)
- Input absolute maximum current: 5.0 A (25 W)
- eFuse nominal current limit target: 4.5 A
- eFuse capability: ≥5 A, preferably 5.5–6 A
- No conversion stage: input current approximately equals protected output current plus a small indicator/eFuse quiescent current.
- Connectors and copper path must support 5 A absolute maximum with margin.
Architecture decision
No matching standalone Flux reference design was found for eFuse or generic power-protection searches. The protection block will therefore be designed from scratch using a library eFuse and its exact datasheet support circuit.
Variant policy
- TVS MPN/value is BOM-configurable within the mechanically compatible 1.5KE unidirectional DO-201 family.
- Bulk capacitor voltage is provisionally 16 V for a 5 V rail and remains BOM-configurable.
- Two radial electrolytic footprints are ALT-FIT/DNP alternatives; only one is to be populated.
- Indicator LED and resistor are optional/DNP.
Requirements and power budget
Architecture decision
Variant policy
