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PI2211
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PCB Layout Recommendations:
Figure 22 - Recommended PCB layout for measuring across the sense resistor (R1).
PCB Layout
The pc board layout shown in Figure 22 is representative of
the proper board layout for the most accurate current sensing
by the PI2211. The sense line are connected to the internal
centers of the sense resistor's pads, minimizing the added
resistance of the receiving copper.
Grounding for the PI2211 should be done using either a low
current ground plane or a local ground plane, contacting with
just the PI2211's ground pins and external components; then
connecting this plane to the system ground at a single point. It
is not recommended connecting the PI2211's ground pins and
external components to different ground planes or to high
current ground planes.
Picor Corporation · picorpower.com
PI2211
Rev 1.0, Page 25 of 26
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