NTC Probe Wiring for LTC2984

2:11

Planning wiring modifications.

Gathering component links.

Thinking deeply about your request.

Analyzing the schematic.

Formulating a high-level plan.

Gathering project context.

Working on your request.

Analyzing the schematic.

Considering project tools.

Working on your request.

Searching the project.

Searching components and nets.

Searching 4 domains.

Refining search for connections.

Searching 4 domains.

Searching for pin connections.

Searching 3 domains.

Searching 3 domains.

Analyzing wiring connections.

Search complete — 1266 results across 4 domains.

Creating a formal plan.

Working on your request.

Creating a high-level plan.

You’re wiring the isolated CAN channel around U14 and IC3.
  • Review the interface topology and isolation domains
  • Add required support parts: termination, biasing, and decoupling
  • Connect controller, isolator, bus, and power nets correctly
  • Verify completeness and ERC readiness
The plan is ready to execute - click Start on the plan bar.
11h

Started implementing a plan

# Goal

- Wire the isolated CAN interface between Isolated CAN #1 connector, U14 (MCP2518FDT-H/SL), and IC3 (ISOW1044BDFMR), ensuring the inclusion of all required support components such as termination resistors, bias circuits, decoupling capacitors, and other associated passive elements.

# Implementation plan

1. **Review Interface Architecture**

1. Confirm the connection topology of the CAN interface among the Isolated CAN #1 connector, U14, and IC3.

2. Document the required signal paths, power, and ground isolations for the isolated domain.

2. **Identify and Add Supporting Passive Components**

1. Add termination resistors on the CAN bus, typically a 120 Ω resistor at one end, ensuring correct bus termination.

2. Include biasing resistors to maintain the CAN bus idle state as per design recommendations.

3. Select and add decoupling capacitors for both U14 and IC3 for proper power supply filtering.

4. Include any additional supporting resistors and capacitors for signal integrity and option for clock support or filtering if needed.

3. **Connect CAN Interface and Isolation Components**

1. Wire the CAN transceiver signals from U14 to the Isolated CAN #1 connector using proper net connections.

2. Route the isolated signals through IC3 ensuring correct isolation between the CAN bus sides.

3. Validate that the connection of power/ground respects the isolation boundaries as per IC3's datasheet and design guidelines.

4. **Review and Verify Design Integration**

1. Review the schematic for completeness, ensuring that all required supporting components are added.

2. Validate that the isolation domain is properly implemented and the bus signals are free of errors.

3. Perform an Electrical Rule Check (ERC) to verify correct connections and component ratings.

# Success criteria

- The CAN interface wiring correctly interconnects the Isolated CAN #1 connector, U14, and IC3 with all passive components properly added.

- The design includes the required termination, bias, decoupling, and support circuits as per CAN bus isolation guidelines.

- The schematic passes ERC and meets the design requirements for isolated CAN operation.

11h

Task completed.

0:18

11h

Execution stopped by user.

1:25

Analyzing the schematic.

Looking for "termination split termination standby enable fail-safe and CANH CANL external components" in isow1044.pdf

Looking for "VDD decoupling capacitor recommendations and TXCAN RXCAN connection guidance" in External-CAN-FD-Controller-with-SPI-Interface-DS20006027B.pdf

11h

0:00

Diagram


TXCAN RXCAN CANH CANL "U14 MCP2518FD CAN Controller" "IC3 ISOW1044 Isolated CAN Transceiver" "Isolated CAN 1 Connector" "Logic Domain node_3V3 and GND" "Isolated CAN Power and Ground" "Bus Termination and Bias Network"
11h

Set System Architecture to "flowchart TD U14["U14 MCP..."

0:10

Set System Architecture to "flowchart TD U14["U14 MCP2518FD CAN Controller"] -->|TXCAN RXCAN| IC3["IC3 ISOW1044 Isolated CAN Transceiver"] IC3 --..."

11h


U1
Manufacturer Part Number
Raspberry Pi Compute 5
R26
Resistance
100 Ω
R27
Resistance
100 Ω
R31
Resistance
100 Ω
R29
Resistance
100 Ω
RS-485
HMI 24VDC POWER
H4
HMI Touch
C35
Capacitance
100uF
H1
H3
H2
USB Programming
Adafruit 0.56" 4-Digit 7-Segment Display with I2C Backpack - Red - STEMMA QT / qwiic MAX 7 LINK
MicroHDMI HMI Display
Manufacturer Part Number
467650301
PS2
D3
J2
BMP280
Manufacturer Part Number
Manufacturer Part Number
12VDC or 24V AC/DC Power


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink

CM5 SD Card Support Update

CM5 SD Card Support Update thumbnail
CM5-based controller updated with SD card interface support: 47k pull-ups on CMD and DAT0-DAT3, local 100nF and 10uF decoupling on the SD 3.3V rail, and card-detect reserved as a future option because the current SD module symbol does not expose a detect pin.

Properties

flowchart TD U14["U14 MCP2518FD CAN Controller"] -->|TXCAN RXCAN| IC3["IC3 ISOW1044 Isolated CAN Transceiver"] IC3 -->|CANH CANL| CN1["Isolated CAN 1 Connector"] VIO["Logic Domain 3V3 and GND"] --> U14 VIO --> IC3 ISO["Isolated CAN Power and Ground"] --> IC3 TERM["Bus Termination and Bias Network"] --> CN1

Pricing & Availability

Distributor

Qty 1

Arrow

$111.55–$137.57

Digi-Key

$82.63–$92.43

LCSC

$160.82–$165.51

Mouser

$173.55–$173.96

TME

$3.50–$4.43

Verical

$108.43–$160.20

Assets

No assets added.

Controls