Part Audit Review

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MCP41HV51-503E/ST Part Audit

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Manufacturer: Microchip Technology Official product: MCP41HV51

flux

Audit complete. All 14 pins now have verified descriptions, electrical types, and unique functional groups with no duplication; the symbol pinout matches Microchip’s datasheet.
  • Critical issue: the effective footprint is scaled down by 1000× and is not manufacturable. I filed an internal part-quality report.
  • Minor issue: Part Type “Resistors” is valid but overly broad.
  • The existing datasheet URL was retained because it was already populated.
Full findings: MCP41HV51-503E/ST Part Audit
A

adrian95

Please correct the footprint scaling so the effective pads match the datasheet land pattern.

flux

The source footprint is not actually 1000× undersized—the inspector reports geometry internally in meters while the imported footprint is defined in millimeters. I did find small land-pattern deviations, so I’m correcting the pads to Microchip’s nominal 5.90 mm row spacing and 0.45 × 1.45 mm land size.

flux

Corrected the footprint to Microchip’s recommended 14-pin TSSOP land pattern:
  • Pad size: 0.45 × 1.45 mm
  • Pad-row center spacing: 5.90 mm
  • Lead pitch retained: 0.65 mm
  • All 14 pads updated symmetrically
The apparent 1000× error was a unit-display mismatch: internal geometry was reported in meters, while the footprint source uses millimeters. The effective pad geometry is now explicitly set to the datasheet dimensions.
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Pins

Symbol

Layout

3D View

Name
Pin #
Type
Part Type
Pin Description
Pin Group
VL
1
Power In
Terminal
Positive digital power supply input.
Power
SCK
2
Input
Terminal
SPI serial clock input; Schmitt-trigger input.
SPI
~CS
3
Input
Terminal
Active-low SPI chip-select input; forcing low enables serial commands; Schmitt-trigger input.
SPI
SDI
4
Input
Terminal
SPI serial data input; Schmitt-trigger input.
SPI
SDO
5
Output
Terminal
SPI serial data output.
SPI
~WLAT
6
Input
Terminal
Active-low wiper-latch enable input; low transfers the SPI shift-register buffer value to the wiper register, high holds it in the buffer; Schmitt-trigger input.
Control
~SHDN
7
Input
Terminal
Active-low shutdown input; low disconnects P0A and connects P0W to P0B; Schmitt-trigger input.
Control
NC
8
Not Connected
Terminal
Not internally connected to the die; to reduce noise coupling, connect to DGND or VL.
Not Connected
DGND
9
Ground
Terminal
Digital ground.
Ground
V-
10
Power In
Terminal
Analog negative-potential power supply input.
Power
P0B
11
Bi-Directional
Terminal
Potentiometer 0 terminal B; analog bidirectional terminal.
Potentiometer
P0W
12
Bi-Directional
Terminal
Potentiometer 0 wiper terminal; analog bidirectional terminal.
Potentiometer
P0A
13
Bi-Directional
Terminal
Potentiometer 0 terminal A; analog bidirectional terminal.
Potentiometer
V+
14
Power In
Terminal
Analog positive-potential power supply input.
Power

MCP41HV51-503E/ST