More copper improves current carrying capability and thermal performance.
Motor driver outputs
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Current layout:
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Proposed layout:
Motor driver power input polygons.
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Current layout:
\
Proposed layout. Direction signals can be routed more on the top layer to avoid creating gaps in polygon.
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In addition some of the resistors could be removed to improve layout by having all resistors on top layer.
0 Ohm resistors can be replaced with straight connection to ground.
ITRIP and SR can be left unconnected, because the configuration value when left unconnected would work fine.
NFAULT pullup is not needed, since NFAULT output is not used.
More vias should be added for battery input pads. Pads need to be made bigger to allow more vias to be added and to be mechanically more robust.
\
Current layout:
\
Proposed layout:
More copper improves current carrying capability and thermal performance.
Motor driver outputs \ Current layout:
\
Proposed layout:
Motor driver power input polygons. \ Current layout:
\
Proposed layout. Direction signals can be routed more on the top layer to avoid creating gaps in polygon.
\
In addition some of the resistors could be removed to improve layout by having all resistors on top layer.
0 Ohm resistors can be replaced with straight connection to ground.
ITRIP and SR can be left unconnected, because the configuration value when left unconnected would work fine.
NFAULT pullup is not needed, since NFAULT output is not used.
More vias should be added for battery input pads. Pads need to be made bigger to allow more vias to be added and to be mechanically more robust. \ Current layout:
\
Proposed layout:
