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Rate Transceiver. MCP2561FD Datasheet

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Rate Transceiver. MCP2561FD Datasheet
















MCP2561FD Transceiver. Datasheet pdf. Equivalent













Part

MCP2561FD

Description

High-Speed CAN Flexible Data Rate Transceiver



Feature


MCP2561/2FD High-Speed CAN Flexible Data Rate Transceiver Features: • Optimi zed for CAN FD (Flexible Data rate) at 2, 5 and 8 Mbps Operation - Maximum Pro pagation Delay: 120 ns - Loop Delay Sym metry: -10%/+10% (2 Mbps) • Implement s ISO-11898-2 and ISO-11898-5 Standard Physical Layer Requirements • Very Lo w Standby Current (5 µA, typical) • VIO Supply Pin to Interface.
Manufacture

Microchip

Datasheet
Download MCP2561FD Datasheet


Microchip MCP2561FD

MCP2561FD; Directly to  CAN Controllers and Mic rocontrollers with  1.8V to 5.5V I/O • SPLIT Output Pin to Stabilize Comm on Mode in Biased Split Termination Sch emes • CAN Bus Pins are Disconnected when Device is Unpowered - An Unpowered Node or Brown-Out Event will Not Load the CAN Bus • Detection of Ground Fau lt: - Permanent Dominant Detection on T XD - Permanent Dominant Dete.


Microchip MCP2561FD

ction on Bus • Power-on Reset and Volt age Brown-Out Protection on VDD Pin • Protection Against Damage Due to Short -Circuit Conditions (Positive or Negati ve Battery Voltage) • Protection Agai nst High-Voltage Transients in Automoti ve Env .


Microchip MCP2561FD

.





Part

MCP2561FD

Description

High-Speed CAN Flexible Data Rate Transceiver



Feature


MCP2561/2FD High-Speed CAN Flexible Data Rate Transceiver Features: • Optimi zed for CAN FD (Flexible Data rate) at 2, 5 and 8 Mbps Operation - Maximum Pro pagation Delay: 120 ns - Loop Delay Sym metry: -10%/+10% (2 Mbps) • Implement s ISO-11898-2 and ISO-11898-5 Standard Physical Layer Requirements • Very Lo w Standby Current (5 µA, typical) • VIO Supply Pin to Interface.
Manufacture

Microchip

Datasheet
Download MCP2561FD Datasheet




 MCP2561FD
MCP2561/2FD
High-Speed CAN Flexible Data Rate Transceiver
Features:
• Optimized for CAN FD (Flexible Data rate) at 2, 5
and 8 Mbps Operation
- Maximum Propagation Delay: 120 ns
- Loop Delay Symmetry: -10%/+10% (2 Mbps)
• Implements ISO-11898-2 and ISO-11898-5
Standard Physical Layer Requirements
• Very Low Standby Current (5 µA, typical)
• VIO Supply Pin to Interface Directly to
CAN Controllers and Microcontrollers with
1.8V to 5.5V I/O
• SPLIT Output Pin to Stabilize Common Mode in
Biased Split Termination Schemes
• CAN Bus Pins are Disconnected when Device is
Unpowered
- An Unpowered Node or Brown-Out Event will
Not Load the CAN Bus
• Detection of Ground Fault:
- Permanent Dominant Detection on TXD
- Permanent Dominant Detection on Bus
• Power-on Reset and Voltage Brown-Out
Protection on VDD Pin
• Protection Against Damage Due to Short-Circuit
Conditions (Positive or Negative Battery Voltage)
• Protection Against High-Voltage Transients in
Automotive Environments
• 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
- Radiated emissions @ 2 Mbps with Common
Mode Choke (CMC)
- DPI @ 2 Mbps with CMC
• High ESD Protection on CANH and CANL,
meeting IEC61000-4-2 up to ±14 kV
• Available in PDIP-8L, SOIC-8L and 3x3 DFN-8L
• Temperature ranges:
- Extended (E): -40°C to +125°C
- High (H): -40°C to +150°C
Description:
The MCP2561/2FD is a second generation high-speed
CAN transceiver from Microchip Technology Inc. It
offers the same features as the MCP2561/2.
Additionally, it guarantees Loop Delay Symmetry in
order to support the higher data rates required for CAN
FD. 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).
Package Types
MCP2561FD
PDIP, SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 SPLIT
MCP2562FD
PDIP, SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 VIO
MCP2561FD
3x3 DFN*
MCP2562FD
3x3 DFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 SPLIT
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 VIO
* Includes Exposed Thermal Pad (EP); see Table 1-2
MCP2561/2FD Family Members
Device
Feature
Description
MCP2561FD
SPLIT pin
Common mode stabilization
MCP2562FD
VIO pin
Internal level shifter on digital I/O pins
Note: For ordering information, see the “Product Identification System” section on page 29.
2014 Microchip Technology Inc.
DS20005284A-page 1




 MCP2561FD
MCP2561/2FD
Block Diagram
SPLIT(2)
VIO(3)
VDD/2
Digital I/O
Supply
TXD
STBY
VIO
Permanent
Dominant Detect
VIO
Mode
Control
VDD
Thermal
Protection
POR
UVLO
Driver
and
Slope Control
CANH
CANL
Wake-Up
Filter
LP_RX(1)
CANH
CANL
Receiver
RXD CANH
HS_RX
CANL
VSS
Note 1: There is only one receiver implemented. The receiver can operate in Low-Power or High-Speed mode.
2: Only MCP2561FD has the SPLIT pin.
3: Only MCP2562FD has the VIO pin. In MCP2561FD, the supply for the digital I/O is internally connected
to VDD.
DS20005284A-page 2
2014 Microchip Technology Inc.




 MCP2561FD
MCP2561/2FD
1.0 DEVICE OVERVIEW
The MCP2561/2FD is a high-speed CAN device,
fault-tolerant device that serves as the interface
between a CAN protocol controller and the physical
bus. The MCP2561/2FD device provides differential
transmit and receive capability for the CAN protocol
controller, and is fully compatible with the ISO-11898-2
and ISO-11898-5 standards.
The Loop Delay Symmetry is guaranteed to support
data rates that are up to 5 Mbps for CAN FD (Flexible
Data rate). 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.
1.1 Mode Control Block
The MCP2561/2FD supports two modes of operation:
• Normal Mode
• Standby Mode
These modes are summarized in Table 1-1.
1.1.1 NORMAL MODE
Normal mode is selected by applying low-level voltage
to the STBY pin. The driver block is operational and
can drive the bus pins. The slopes of the output signals
on CANH and CANL are optimized to produce minimal
electromagnetic emissions (EME).
The high speed differential receiver is active.
1.1.2 STANDBY MODE
The device may be placed in Standby mode by
applying high-level voltage to the STBY pin. In Standby
mode, the transmitter and the high-speed part of the
receiver are switched off to minimize power
consumption. The low-power receiver and the wake-up
filter blocks are enabled to monitor the bus for activity.
The receive pin (RXD) will show a delayed
representation of the CAN bus, due to the wake-up
filter.
The CAN controller gets interrupted by a negative edge
on the RXD pin (Dominant state on the CAN bus). The
CAN controller must put the MCP2561/2FD back into
Normal mode, using the STBY pin, in order to enable
high speed data communication.
The CAN bus wake-up function requires both supply
voltages, VDD and VIO, to be in valid range.
TABLE 1-1:
Mode
Normal
Standby
MODES OF OPERATION
STBY Pin
LOW
RXD Pin
HIGH
LOW
HIGH
Bus is Dominant
Wake-up request is detected
Bus is Recessive
No wake-up request detected
1.2 Transmitter Function
The CAN bus has two states:
• Dominant State
• Recessive State
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 state of the TXD
input pin, respectively. However, a Dominant state
initiated by another CAN node will override a
Recessive state on the CAN bus.
1.3 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.
1.4 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.
2014 Microchip Technology Inc.
DS20005284A-page 3




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