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Data-Rate Transceiver. MCP25612FD Datasheet

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Data-Rate Transceiver. MCP25612FD Datasheet
















MCP25612FD Transceiver. Datasheet pdf. Equivalent













Part

MCP25612FD

Description

Dual CAN Flexible Data-Rate Transceiver



Feature


MCP25612FD Dual CAN Flexible Data-Rate Transceiver Features • Supports both “classic” CAN 2.0 and CAN FD physi cal layer requirements • Optimized fo r CAN FD (Flexible Data-Rate) at 2, 5 a nd 8 Mbps Operation: - Maximum Propagat ion Delay: 120 ns - Loop Delay Symmetry : -10%/+10% (2 Mbps) • Implements ISO -11898-2 and ISO-11898-5 Standard Physi cal Layer Requirements • Ver.
Manufacture

Microchip

Datasheet
Download MCP25612FD Datasheet


Microchip MCP25612FD

MCP25612FD; y Low Standby Current (5 µA per transce iver, typical) • Two Fully Independen t VDDX and VSSX Pins per CAN FD Transce iver for Added Flexibility and Reliabil ity: - Optimal for redundant CAN networ ks • Compatible to 5V MCUs • Functi onal Behavior Predictable Under All Sup ply Conditions: - Device is in Unpowere d mode if VDDX drops below undervoltage level - An unpowered nod.


Microchip MCP25612FD

e or brown-out event will not load the C AN bus • Detection of Ground Fault: - Permanent dominant detection on TXDX - Permanent dominant detection on bus Power-on Reset and Undervoltage Lock- out on VDDX Pin • Protection against Damage .


Microchip MCP25612FD

.





Part

MCP25612FD

Description

Dual CAN Flexible Data-Rate Transceiver



Feature


MCP25612FD Dual CAN Flexible Data-Rate Transceiver Features • Supports both “classic” CAN 2.0 and CAN FD physi cal layer requirements • Optimized fo r CAN FD (Flexible Data-Rate) at 2, 5 a nd 8 Mbps Operation: - Maximum Propagat ion Delay: 120 ns - Loop Delay Symmetry : -10%/+10% (2 Mbps) • Implements ISO -11898-2 and ISO-11898-5 Standard Physi cal Layer Requirements • Ver.
Manufacture

Microchip

Datasheet
Download MCP25612FD Datasheet




 MCP25612FD
MCP25612FD
Dual CAN Flexible Data-Rate Transceiver
Features
• Supports both “classic” CAN 2.0 and CAN FD
physical layer requirements
• 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 per transceiver,
typical)
• Two Fully Independent VDDX and VSSX Pins per CAN
FD Transceiver for Added Flexibility and Reliability:
- Optimal for redundant CAN networks
• Compatible to 5V MCUs
• Functional Behavior Predictable Under All Supply
Conditions:
- Device is in Unpowered mode if VDDX drops
below undervoltage level
- An unpowered node or brown-out event will
not load the CAN bus
• Detection of Ground Fault:
- Permanent dominant detection on TXDX
- Permanent dominant detection on bus
• Power-on Reset and Undervoltage Lock-out on
VDDX 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:
- Conducted emissions @ 2 Mbps with
Common-Mode Choke (CMC)
- Direct Power Injection (DPI) @ 2 Mbps with CMC
• Meets SAE J2962/2 “Communication
Transceivers Qualification Requirements – CAN”:
- Passes radiated emissions at 2 Mbps without
a CMC
• High Noise Immunity due to Differential Bus
Implementation
• High ESD Protection on CANHx and CANLx,
Meets IEC61000-4-2, up to ±6 kV
• Available in 14-Lead SOIC
• Temperature Ranges:
- Extended (E): -40°C to +125°C
- High (H): -40°C to +150°C
Description
The MCP25612FD is a second generation, dual CAN
FD transceiver from Microchip Technology Inc. It offers
all of the features from two fully independent
MCP2561FD CAN transceivers, except for the SPLIT
pin. It ensures Loop Delay Symmetry in order to support
the higher data rates required for CAN FD. The maxi-
mum propagation delay is improved to support a longer
bus length.
The device meets the automotive requirements for CAN
FD bit rates, low quiescent current, robust
Electromagnetic Compatibility (EMC) and Electrostatic
Discharge (ESD).
Package Types
MCP25612FD
SOIC
TXD1 1
VSS1 2
VDD1 3
RXD1 4
TXD2 5
VSS2 6
VDD2 7
14 STBY1
13 CANH1
12 CANL1
11 STBY2
10 CANH2
9 CANL2
8 RXD2
Typical Applications
Automotive
• Powertrain
• Body Control
• Gateway
• Chassis and Safety
• Infotainment
Industrial
• Factory Automation
• Gateway
• Server Backplanes
• Elevators
• Robotics
2015 Microchip Technology Inc.
DS20005409A-page 1




 MCP25612FD
MCP25612FD
Device Block Diagram
TXD1
STBY1
Digital I/O
Supply
VDD1
Permanent
Dominant Detect
VDD1
Mode
Control
Thermal
Protection
POR
UVLO
Driver
and
Slope Control
VDD1
CANH1
CANL1
RXD1
Wake-up
Filter
Receiver
CANH1
LP_RX
CANL1
CANH1
HS_RX
CANL1
TXD2
STBY2
Digital I/O
Supply
VDD2
Permanent
Dominant Detect
VDD2
Mode
Control
Thermal
Protection
POR
UVLO
Driver
and
Slope Control
VSS1
VDD2
CANH2
CANL2
RXD2
Wake-up
Filter
Receiver
LP_RX
(Note 1)
CANH1
CANL1
CANH1
HS_RX
CANL1
VSS2
Note 1: There is only one receiver implemented. The receiver can operate in either Low-Power or High-Speed mode.
DS20005409A-page 2
2015 Microchip Technology Inc.




 MCP25612FD
MCP25612FD
1.0 DEVICE OVERVIEW
The MCP25612FD is a dual fully independent, CAN
FD transceiver Fault tolerant device that serves as the
interface between a CAN protocol controller and the
physical bus. The MCP25612FD device provides differ-
ential transmit and receive capability for the CAN pro-
tocol controller, and is fully compatible with the ISO
11898-2 and ISO 11898-5 standards.
The Loop Delay Symmetry is ensured to support data
rates up to 8 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 MCP25612FD supports two modes of operation
between the two CAN transceivers independently:
• 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 STBYx pin. The driver block is operational and
can drive the bus pins. The slopes of the output signals
on CANHx and CANLx 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 apply-
ing a high-level voltage to the STBYx pin. In Standby
mode, the transmitter and the high-speed part of the
receiver are switched off to minimize power consump-
tion. The low-power receiver and the wake-up filter
blocks are enabled to monitor the bus for activity. The
Receive pin (RXDX) 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 RXDX pin (Dominant state on the CAN bus). The
CAN controller must put the MCP25612FD back into
Normal mode, using the STBYx pin, in order to enable
high-speed data communication.
The CAN bus wake-up function requires VDDX to be in
valid range.
TABLE 1-1:
Mode
Normal
Standby
MODES OF OPERATION
STBYx Pin
Low
RXDX Pin
High
Low
High
Bus is dominant
Wake-up request is detected
Bus is recessive
No wake-up request detected
2015 Microchip Technology Inc.
DS20005409A-page 3




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