Adding CAN Network with MCP2515

A

aseel-enterprise2

@library find an automotive TVS diode for the 12V input ahead of the regulator

flux

Automotive TVS options ahead of the regulator

Table

PartPackageManufacturerWhy it stands out
SMCJ24A-QSMCBournsBest balanced choice for the 12 V input ahead of IC1
SM8S24A-QDO-218BournsHeavier-duty option if you want more surge margin at the 39514-5004 entry
SMBJ28A-QSMBBournsSmaller package option if space matters more than surge robustness
SMBJ26A-QSMBBournsSimilar compact automotive option
SMCJ24AQ-13-FSMCDiodesReasonable alternative to the Bourns SMC part
Recommendation Placement
  • Put the TVS directly behind the 39514-5004, from +12 V to GND, before the input path feeding IC1.
If you want, I can next find a matching reverse-polarity protection part for the same input path.
Find reverse protection
Smaller TVS options
Check regulator input
Review input path
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Files

Schematic

Layout

3D View

LED1
R9
Resistance
10KΩ
R2
Resistance
Resistance
R5
Resistance
5.1KΩ
R4
Resistance
5.1KΩ
R3
Resistance
Resistance
R7
Resistance
220 Ω
R1
Resistance
100KΩ
R8
Resistance
220 Ω
R6
Resistance
220 Ω
J2
U1
J3
D1
J1
C1
Capacitance
0.1uF
C3
Capacitance
0.1uF
C4
Capacitance
10uF
C7
Capacitance
10uF
C6
Capacitance
22uF
L1
Inductance
2.2uH
C5
Capacitance
3.3nF
C2
Capacitance
10uF
SW2
SW1
IC1
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