PCB Neckdowns Routing

brianbenchoff

brianbenchoff

do neckdowns on this board and then route it; don't move the components

flux

I’ll add pad neckdowns and route the board in phases without changing any component positions, then verify airwires and DRC.

flux

Neckdown cleanup and the first routing pass are complete with placement untouched. I’m independently checking the remaining airwires and DRC now.

flux

Added DRC-safe neckdowns and routed the board without moving any components. Airwires dropped from 19 to 11; all other checked routing errors are zero.
  • Blocked: REGN, INT, ILIM, CE, STAT, and VSYS-area connections need additional routing space.
  • To finish: allow moving at least one lower passive, or switch to a 4-layer stackup.
Move passives and reroute
Use four layers
Fix remaining airwires
Show blocked endpoints

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    Assets

    BQ24295_image.png

    BQ24295_image.png

    BQ24295_imageThumbnail
    Neckdown-Fixture-BQ24295 thumbnail
    This project is a reference design based on the BQ24295, a single cell Li-Ion battery charger. It manages the power between an external power source (VIN), a Li-Ion battery (BAT), and a system power rail (SYS). Key features include power-path management, battery thermistor monitoring, and charge status indication. #project #BQ24295 #ReferenceDesign #charger #BatteryManagement #referenceDesign #bms #texas-instruments #template #reference-design #polygon

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