MCP2542/4WFD

Part: MCP2542FD/4FD, MCP2542WFD/4WFD Family — Microchip Technology

Type: CAN FD Transceiver

Description: A family of high-speed CAN FD transceivers supporting CAN 2.0 and CAN FD up to 8 Mbps, with options for basic CAN activity wake-up or ISO 11898-2:2016 Wake-Up Pattern (WUP), featuring very low standby current and VIO supply for 1.8V to 5V I/O interfacing.

Operating Conditions:

• Operating ambient temperature: -40°C to +150°C (Grade 0)
• Max communication speed: 8 Mbps (CAN FD)

Absolute Maximum Ratings:

• Max supply voltage (VDD, VIO): 7.0V
• DC Voltage at CANH and CANL: -58V to +58V
• Max junction/storage temperature: +150°C

Key Specs:

• Max propagation delay: 120 ns
• Loop delay symmetry: -10%/+10% (2 Mbps)
• Standby current: 4 μA (typical)
• Wake-up activity filter time: 3.6 μs
• VIO supply range: 1.8V to 5V
• ESD protection on CANH/CANL: ±13 kV (IEC61000-4-2)
• Thermal shutdown limit: +175°C (junction temperature)

Features:

• Supports CAN 2.0 and CAN FD Physical Layer Transceiver Requirements
• Optimized for CAN FD at 2, 5 and 8 Mbps Operation
• Wake-up on CAN activity (MCP2542FD/4FD)
• Wake-up on Pattern (WUP) as per ISO 11898-2:2016 (MCP2542WFD/4WFD)
• Implements ISO 11898-2:2003, ISO 11898-5:2007, and ISO 11898-2:2016
• AEC-Q100 Rev. G, Grade 0 qualification
• VIO Supply Pin for 1.8V to 5V I/O
• CAN Bus Pins disconnected when device is unpowered
• Detection of Ground Fault (Permanent Dominant on TXD and bus)
• Automatic Thermal Shutdown Protection
• Suitable for 12V and 24V Systems
• High ESD Protection on CANH and CANL

Applications:

• CAN 2.0 and CAN FD networks in Automotive
• Industrial applications
• Aerospace applications
• Medical applications
• Consumer applications

Package:

• 3x3 DFN
• 2x3 TDFN
• SOIC

• Supports CAN 2.0 and CAN with Flexible Data Rate (CAN FD) Physical Layer Transceiver Requirements
• Optimized for CAN FD at 2, 5 and 8 Mbps Operation
• -Maximum propagation delay: 120 ns
• -Loop delay symmetry: -10%/+10% (2 Mbps)
• MCP2542FD/4FD:
• -Wake-up on CAN activity, 3.6 μs filter time
• MCP2542WFD/4WFD:
• -Wake-up on Pattern (WUP), as specified in ISO 11898-2:2016, 3.6 μs activity filter time
• Implements ISO 11898-2:2003, ISO 11898-5:2007, and ISO 11898-2:2016
• Qualification: AEC-Q100 Rev. G, Grade 0 (-40°C to +150°C)
• Very Low Standby Current (4 μA, typical)
• VIO Supply Pin to Interface Directly to CAN Controllers and Microcontrollers with 1.8V to 5V I/O
• CAN Bus Pins are Disconnected when Device is Unpowered
• -An unpowered node or brown-out event will not load the CAN bus
• -Device is unpowered if VDD or VIO drop below its POR level
• Detection of Ground Fault:
• -Permanent Dominant detection on TXD
• -Permanent Dominant detection on bus
• Automatic Thermal Shutdown Protection
• Suitable for 12V and 24V Systems
• Meets or Exceeds Stringent Automotive Design Requirements Including ' Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications ', Version 1.3, May 2012
• -Conducted emissions @ 2 Mbps with Common-Mode Choke (CMC)
• -Direct Power Injection (DPI) @ 2 Mbps with CMC
• Meets SAE J2962/2 ' Communication Transceiver Qualification Requirements - CAN '
• -Radiated emissions @ 2 Mbps without a CMC
• High Electrostatic Discharge (ESD) Protection on CANH and CANL, meeting IEC61000-4-2 up to ±13 kV
• Temperature ranges:
• -Extended (E): -40°C to +125°C
• -High (H): -40°C to +150°C

CAN 2.0 and CAN FD networks in Automotive, Industrial, Aerospace, Medical, and Consumer applications.

The description of the pins are listed in Table 1-1.

TABLE 1-1: MCP2542/4FD AND MCP2542/4WFD PIN DESCRIPTIONS

Note

1: Characterized; not 100% tested.

• 2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.
• 3: -12V to 12V is ensured by characterization, and tested from -2V to 7V.

• VIO ..............................................................................................................................................................................7.0V
• DC Voltage at TXD, RXD, STBY and VSS.............................................................................................-0.3V to VIO + 0.3V
• DC Voltage at CANH and CANL ..................................................................................................................-58V to +58V
• Transient Voltage on CANH and CANL (ISO-7637) (Figure 2-5) .............................................................-150V to +100V
• Differential Bus Input Voltage VDIFF ( I ) (t = 60 days, continuous)....................................................................-5V to +10V
• Differential Bus Input Voltage VDIFF ( I ) (1000 pulses, t = 0.1 ms, VCANH = +18V) .....................................................+17V
• Dominant State Detection VDIFF ( I ) (10000 pulses, t = 1 ms).......................................................................................+9V
• Storage temperature ...............................................................................................................................-55°C to +150°C
• Operating ambient temperature ..............................................................................................................-40°C to +150°C
• Virtual Junction Temperature, TVJ (IEC60747-1) ....................................................................................-40°C to +190°C
• Soldering temperature of leads (10 seconds) .......................................................................................................+300°C
• ESD protection on CANH and CANL pins (IEC 61000-4-2)...................................................................................±13 kV
• ESD protection on CANH and CANL pins (IEC 801; Human Body Model)..............................................................±8 kV
• ESD protection on all other pins (IEC 801; Human Body Model).............................................................................±4 kV
• ESD protection on all pins (IEC 801; Machine Model) ............................................................................................±400V
• ESD protection on all pins (IEC 801; Charge Device Model)..................................................................................±750V

† Notice: Stresses above those listed under 'Maximum ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

It is recommended to connect this pad to VSS to enhance electromagnetic immunity and thermal resistance.

In order to meet the EMC/EMI requirements, a Common Mode Choke (CMC) may be required for data rates greater than 1 Mbps. Figure 1-3 and Figure 1-4 illustrate examples of typical applications of the devices.

FIGURE 1-3: MCP2544WFD WITH NC AND SPLIT TERMINATION

FIGURE 1-4: MCP2542FD WITH VIO PIN