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FD Transceiver. MCP2544FD Datasheet

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FD Transceiver. MCP2544FD Datasheet






MCP2544FD Transceiver. Datasheet pdf. Equivalent




MCP2544FD Transceiver. Datasheet pdf. Equivalent





Part

MCP2544FD

Description

CAN FD Transceiver



Feature


MCP2542FD/4FD, MCP2542WFD/4WFD CAN FD T ransceiver with Wake-Up Pattern (WUP) O ption Features • Supports CAN 2.0 an d CAN with Flexible Data Rate (CAN FD) Physical Layer Transceiver Requirements • Optimized for CAN FD at 2, 5 and 8 Mbps Operation - Maximum propagation d elay: 120 ns - Loop delay symmetry: -10 %/+10% (2 Mbps) • MCP2542FD/4FD: - Wa ke-up on CAN activity, 3.
Manufacture

Microchip

Datasheet
Download MCP2544FD Datasheet


Microchip MCP2544FD

MCP2544FD; .6 µs filter time • MCP2542WFD/4WFD: - Wake-up on Pattern (WUP), as specifie d in ISO11898-2:2015, 3.6 µs activity filter time • Implements ISO11898-2:2 003, ISO11898-5:2007, and ISO/DIS11898- 2:2015 • Qualification: AEC-Q100 Rev. G, Grade 0 (-40°C to +150°C) • Ver y Low Standby Current (4 µA, typical) • VIO Supply Pin to Interface Directl y to CAN Controllers and Microcon.


Microchip MCP2544FD

trollers with 1.8V to 5V I/O • CAN Bus Pins are Disconnected when Device is U npowered - An unpowered node or brown-o ut event will not load the CAN bus - De vice is unpowered if VDD or VIO drop be low its POR level • Detection of Grou nd F .


Microchip MCP2544FD

.

Part

MCP2544FD

Description

CAN FD Transceiver



Feature


MCP2542FD/4FD, MCP2542WFD/4WFD CAN FD T ransceiver with Wake-Up Pattern (WUP) O ption Features • Supports CAN 2.0 an d CAN with Flexible Data Rate (CAN FD) Physical Layer Transceiver Requirements • Optimized for CAN FD at 2, 5 and 8 Mbps Operation - Maximum propagation d elay: 120 ns - Loop delay symmetry: -10 %/+10% (2 Mbps) • MCP2542FD/4FD: - Wa ke-up on CAN activity, 3.
Manufacture

Microchip

Datasheet
Download MCP2544FD Datasheet




 MCP2544FD
MCP2542FD/4FD,
MCP2542WFD/4WFD
CAN FD Transceiver with Wake-Up Pattern (WUP) Option
Features
• 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
ISO11898-2:2015, 3.6 µs activity filter time
• Implements ISO11898-2:2003, ISO11898-5:2007, and
ISO/DIS11898-2:2015
• 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 Quali-
fication 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
Description
The MCP2542FD/4FD and MCP2542WFD/4WFD CAN
transceiver family is designed for high-speed CAN FD
applications up to 8 Mbps communication speed. The
maximum propagation delay was improved to support longer
bus length.
The device meets the automotive requirements for CAN FD bit
rates exceeding 2 Mbps, low quiescent current,
electromagnetic compatibility (EMC) and electrostatic
discharge (ESD).
Applications
CAN 2.0 and CAN FD networks in Automotive, Industrial,
Aerospace, Medical, and Consumer applications.
Package Types
MCP2542FD
MCP2542WFD
3x3 DFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 VIO
MCP2544FD
MCP2544WFD
3x3 DFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 NC
MCP2542FD
MCP2542WFD
8-Lead SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 VIO
MCP2544FD
MCP2544WFD
8-Lead SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 NC
MCP2542FD
MCP2542WFD
2x3 TDFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 VIO
MCP2544FD
MCP2544WFD
2x3 TDFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 NC
* Includes Exposed Thermal Pad (EP); see Table 1-1.
MCP2542FD/4FD, MCP2542WFD/4WFD Family Members
Device
VIO pin
WUP
Description
MCP2542FD
Yes No
MCP2544FD
No No Internal level shifter on digital I/O pins
MCP2542WFD Yes Yes Wake-Up on Pattern (see Section 1.6.5)
MCP2544WFD No Yes Internal level shifter on digital I/O pins; Wake-Up on Pattern
Note: For ordering information, see the Product Identification System section.
2016 Microchip Technology Inc.
DS20005514A-page 1




 MCP2544FD
MCP2542FD/4FD, MCP2542WFD/4WFD
Block Diagram
VIO
VDD
Digital I/O
Supply
TXD
STBY
VIO
Permanent Dominant
Detect
VIO
Mode Control
Thermal
Protection
POR
UVLO
Driver
and
Slope Control
CANH
CANL
Wake-Up
Filter
VDD
CANH
LP_RX
CANL
RXD
VDD
CANH
HS_RX
CANL
VSS
Note 1: There is one receiver implemented. The receiver can operate in Low-Power or High-Speed mode.
2: Only MCP2542FD and MCP2542WFD have the VIO pin.
3: In the MCP2544FD and MCP2544WFD, the supply for the digital I/O is internally connected to VDD.
DS20005514A-page 2
2016 Microchip Technology Inc.




 MCP2544FD
MCP2542FD/4FD, MCP2542WFD/4WFD
1.0 DEVICE OVERVIEW
The MCP2542FD/4FD and MCP2542WFD/4WFD
devices serve as the interface between a CAN protocol
controller and the physical bus. The devices provide
differential transmit and receive capability for the CAN
protocol controller. The devices are fully compatible
with the ISO11898-2 and ISO11898-5 standards, and
with the ISO/DIS11898-2:2015 working draft.
Excellent Loop Delay Symmetry supports data rates up
to 8 Mbps for CAN FD. The maximum propagation
delay was improved to support longer bus length.
Typically, each node in a CAN system must have a
device to convert the digital signals generated by a
CAN controller to signals suitable for transmission over
the bus cabling (differential output). It also provides a
buffer between the CAN controller and the high-voltage
spikes that can be generated on the CAN bus by
outside sources.
The MCP2542FD/4FD wakes up on CAN activity (basic
wake-up). The CAN activity filter time is 3.6 µs maximum.
The MCP2542WFD/4WFD wakes up after receiving
two consecutive dominant states separated by a reces-
sive state: WUP. The minimum duration of each domi-
nant and recessive state is tFILTER. The complete WUP
has to be detected within tWAKE(TO).
1.1 Transmitter Function
The CAN bus has two states: Dominant and
Recessive. A Dominant state occurs when the
differential voltage between CANH and CANL is
greater than VDIFF(D)(I). A Recessive state occurs
when the differential voltage is less than VDIFF(R)(I).
The Dominant and Recessive states correspond to the
Low and High states of the TXD input pin, respectively.
However, a Dominant state initiated by another CAN
node will override a Recessive state on the CAN bus.
1.2 Receiver Function
In Normal mode, the RXD output pin reflects the
differential bus voltage between CANH and CANL. The
Low and High states of the RXD output pin correspond
to the Dominant and Recessive states of the CAN bus,
respectively.
1.3 Internal Protection
CANH and CANL are protected against battery short
circuits and electrical transients that can occur on the
CAN bus. This feature prevents destruction of the
transmitter output stage during such a fault condition.
The device is further protected from excessive current
loading by thermal shutdown circuitry that disables the
output drivers when the junction temperature exceeds
a nominal limit of +175°C.
All other parts of the chip remain operational, and the
chip temperature is lowered due to the decreased
power dissipation in the transmitter outputs. This
protection is essential to protect against bus line
short-circuit-induced damage. Thermal protection is
only active during Normal mode.
1.4 Permanent Dominant Detection
The MCP2542FD/4FD and MCP2542WFD/4WFD
device prevents two conditions:
• Permanent Dominant condition on TXD
• Permanent Dominant condition on the bus
In Normal mode, if the MCP2542FD/4FD and
MCP2542WFD/4WFD detects an extended Low state
on the TXD input, it will disable the CANH and CANL
output drivers in order to prevent the corruption of data
on the CAN bus. The drivers will remain disabled until
TXD goes High. The high-speed receiver is active and
data on the CAN bus is received on RXD.
In Standby mode, if the MCP2542FD/4FD and
MCP2542WFD/4WFD detects an extended dominant
condition on the bus, it will set the RXD pin to a
Recessive state. This allows the attached controller to
go to Low-Power mode until the dominant issue is
corrected. RXD is latched High until a Recessive state
is detected on the bus and the Wake-Up function is
enabled again.
1.5 Power-On Reset (POR) and
Undervoltage Detection
The MCP2542FD/4FD and MCP2542WFD/4WFD
have POR detection on both supply pins: VDD and VIO.
Typical POR thresholds to deassert the reset are 1.2V
and 3.0V for VIO and VDD, respectively.
When the device is powered on, CANH and CANL
remain in a high-impedance state until VDD exceeds its
undervoltage level. Once powered on, CANH and
CANL will enter a high-impedance state if the voltage
level at VDD drops below the undervoltage level,
providing voltage brown-out protection during normal
operation.
In Normal mode, the receiver output is forced to
Recessive state during an undervoltage condition on
VDD. In Standby mode, the low-power receiver is
designed to work down to 1.7V VIO. Therefore, the
low-power receiver remains operational down to VPORL
on VDD (MCP2544FD and MCP2544WFD). The
MCP2542FD and MCP2542WFD transfers data to the
RXD pin down to 1.7V on the VIO supply.
2016 Microchip Technology Inc.
DS20005514A-page 3



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