Pin Grouping Review

A

adrian95

  • Make the functional group more general.
  • Add a Section property to all pins, and apply the same value used in the Pin Group property to each pin's Section property.
Assign a Terminal Order from 1 to 10, starting with Power. Power should be Terminal Order 1, and Ground should be last, Terminal Order 10. For Orientation, set Power to "Top" and Ground to "Bottom." For the remaining sections/groups, you may decide the Terminal Order and Orientation yourself. For Orientation, distribute them between "Left" and "Right" — don't put everything on one side. Each group/section should have a different orientation.

flux

I’ll generalize the existing groups, make Section match Pin Group on every terminal, then verify the terminal order/orientation assignments.

flux

Updated the symbol grouping to broader functions and verified all 17 pins now have matching Pin Group and Section values.
Applied groups
  • Power: Terminal Order 1, Top
  • Control: 2, Left
  • Output: 3, Right
  • Sense: 4, Left
  • Status: 5, Right
  • NC: 9, Left
  • Ground: 10, Bottom
Open items
  • Flux only supports Top/Bottom/Left/Right orientations, so with more than four groups some orientations must be reused; I distributed the non-power/non-ground groups between Left and Right.
Suggested next steps
  1. Review the symbol visually in the editor.
  2. If you want stricter unique orientations, I can collapse the groups further to four total groups.
Validate and refine symbol
Run symbol review
Validate footprint mapping
Adjust pin descriptions
Check electrical types
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Files

Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Pin Description
AISEN
1
Output
Sense
Sense
Left
4
Full bridge A current sense; connect to sense resistor or GND if current regulation is not required
AOUT2
2
Output
Output
Output
Right
3
Bridge A output 2
BOUT2
3
Output
Output
Output
Right
3
Bridge B output 2
BISEN
4
Output
Sense
Sense
Left
4
Full bridge B current sense; connect to sense resistor or GND if current regulation is not required
BOUT1
5
Output
Output
Output
Right
3
Bridge B output 1
NFAULT
6
Open Collector
Status
Status
Right
5
Open-drain fault indicator; pulls low during fault and requires an external pullup for open-drain operation
BIN1
7
Input
Control
Control
Left
2
H-bridge B control input; internal pulldown
BIN2
8
Input
Control
Control
Left
2
H-bridge B control input; internal pulldown
NC_1
9
Not Connected
NC
NC
Left
9
Not connected
VM
10
Power In
Power
Power
Top
1
1.65-V to 11-V motor supply input; bypass to ground with 0.1-uF plus bulk capacitance
GND
11
Ground
Ground
Ground
Bottom
10
Device ground; connect to system ground
NC_2
12
Not Connected
NC
NC
Left
9
Not connected
AIN2
13
Input
Control
Control
Left
2
H-bridge A control input; internal pulldown
AIN1
14
Input
Control
Control
Left
2
H-bridge A control input; internal pulldown
NSLEEP
15
Input
Control
Control
Left
2
Sleep mode input; high enables device, low enters low-power sleep; internal pulldown
AOUT1
16
Output
Output
Output
Right
3
Bridge A output 1
EP
17
Ground
Ground
Ground
Bottom
10
Exposed thermal pad; connect to system ground

DRV8411RTER