MCP2542WFDT-H/SN

Part: MCP2542FD/4FD, MCP2542WFD/4WFD Family

Type: CAN FD Transceiver

Key Specs:

• Optimized for CAN FD at 2, 5 and 8 Mbps Operation
• Maximum propagation delay: 120 ns
• Loop delay symmetry: -10%/+10% (2 Mbps)
• Wake-up activity filter time: 3.6 μs
• Very Low Standby Current: 4 μA (typical)
• VIO Supply Pin I/O range: 1.8V to 5V
• ESD Protection on CANH and CANL: up to ±13 kV (IEC61000-4-2)
• Thermal shutdown nominal limit: +175°C (junction temperature)
• Typical POR thresholds: VIO 1.2V, VDD 3.0V

Features:

• Supports CAN 2.0 and CAN with Flexible Data Rate (CAN FD) Physical Layer Transceiver Requirements
• Wake-up on CAN activity (MCP2542FD/4FD)
• Wake-up on Pattern (WUP) as specified in ISO 11898-2:2016 (MCP2542WFD/4WFD)
• 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)
• CAN Bus Pins are Disconnected when Device is Unpowered
• 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 (e.g., "Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications", SAE J2962/2)
• Temperature ranges: Extended (-40°C to +125°C), High (-40°C to +150°C)
• Power-On Reset (POR) and Undervoltage Detection on VDD and VIO

Applications:

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

Package:

• 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

1.7.1 TRANSMITTER DATA INPUT PIN (TXD)

The CAN transceiver drives the differential output pins CANH and CANL according to TXD. It is usually connected to the transmitter data output of the CAN controller device. When TXD is Low, CANH and CANL are in the Dominant state. When TXD is High, CANH and CANL are in the Recessive state, provided that another CAN node is not driving the CAN bus with a Dominant state. TXD is connected from an internal pull-up resistor (nominal 33 k) to VIO in the MCP2542FD and MCP2542WFD, and to VDD in the MCP2544FD and MCP2544WFD.

1.7.2 GROUND SUPPLY PIN (VSS)

Ground supply pin.

1.7.3 SUPPLY VOLTAGE PIN (VDD)

Positive supply voltage pin. Supplies transmitter and receiver, including the wake-up receiver.

1.7.4 RECEIVER DATA OUTPUT PIN (RXD)

RXD is a CMOS-compatible output that drives High or Low depending on the differential signals on the CANH and CANL pins, and is usually connected to the receiver data input of the CAN controller device. RXD is High when the CAN bus is Recessive, and Low in the Dominant state. RXD is supplied by VIO in the MCP2542FD and MCP2542WFD and by VDD in the MCP2544FD and MCP2544WFD.

1.7.5 NC PIN (MCP2544FD AND MCP2544WFD)

No Connect. This pin can be left open or connected to VSS.

1.7.6 VIO PIN (MCP2542FD AND MCP2542WFD)

Supply for digital I/O pins. In the MCP2544FD and MCP2544WFD, the supply for the digital I/O (TXD, RXD and STBY) is internally connected to VDD.

1.7.7 DIGITAL I/O

The MCP2542FD/4FD and MCP2542WFD/4WFD enable easy interfacing to MCU with I/O ranges from 1.8V to 5V.

1.7.7.1 MCP2544FD and MCP2544WFD

The VIH(MIN) and VIL(MAX) for STBY and TXD are independent of VDD. They are set at levels that are compatible with 3V and 5V microcontrollers.

The RXD pin is always driven to VDD, therefore a 3V microcontroller will need a 5V tolerant input.

1.7.7.2 MCP2542FD and MCP2542WFD

VIH and VIL for STBY and TXD depend on VIO. The RXD pin is driven to VIO.

1.7.8 CAN LOW PIN (CANL)

The CANL output drives the Low side of the CAN differential bus. This pin is also tied internally to the receive input comparator. CANL disconnects from the bus when MCP2542FD/4FD and MCP2542WFD/4WFD are not powered.

1.7.9 CAN HIGH PIN (CANH)

The CANH output drives the high side of the CAN differential bus. This pin is also tied internally to the receive input comparator. CANH disconnects from the bus when MCP2542FD/4FD and MCP2542WFD/4WFD are not powered.

1.7.10 STANDBY MODE INPUT PIN (STBY)

This pin selects between Normal or Standby mode. In Standby mode, the transmitter and high-speed receiver are turned off, only the low-power receiver and wake-up filter are active. STBY is connected from an internal MOS pull-up resistor to VIO in the MCP2542FD and MCP2542WFD, and to VDD in the MCP2544FD and MCP2544WFD. The value of the MOS pull-up resistor depends on the supply voltage. Typical values are 660 k for 5V, 1.1 M for 3.3V and 4.4 M for 1.8V.

1.7.11 EXPOSED THERMAL PAD (EP)

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

2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.

• VIO7.0V
• 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.

TABLE 2-1: DC CHARACTERISTICS

2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.

TABLE 2-1: DC CHARACTERISTICS (CONTINUED)

2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.

TABLE 2-1: DC CHARACTERISTICS (CONTINUED)

2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.

TABLE 2-1: DC CHARACTERISTICS (CONTINUED)

| DC Specifications | Electrical Characteristics: Unless otherwise indicated, Extended (E): TAMB = -40°C
to +125°C and High (H): TAMB = -40°C to +150°C;
VDD = 4.5V to 5.5V, VIO = 1.7V to 5.5V (Note 2), RL = 60Ω, CL = 100 pF; unless
otherwise specified. | |---|---|---|---|---|---|---| | Parameter | Sym. | Min. | Typ. | Max. | Units | Conditions | | Supply | | | | | | | |

2: Only MCP2542FD and MCP2542WFD have a VIO pin. For the MCP2544FD and MCP2544WFD, VIO is internally connected to VDD.

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