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CAN Transceiver. MCP2562 Datasheet

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CAN Transceiver. MCP2562 Datasheet






MCP2562 Transceiver. Datasheet pdf. Equivalent




MCP2562 Transceiver. Datasheet pdf. Equivalent





Part

MCP2562

Description

High-Speed CAN Transceiver



Feature


MCP2561/2 High-Speed CAN Transceiver Fe atures: • Supports 1 Mb/s Operation Implements ISO-11898-5 Standard Phys ical Layer Requirements • Very Low St andby 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 t o Stabilize Common Mode in Biased Split Termination Schemes • CAN Bu.
Manufacture

Microchip

Datasheet
Download MCP2562 Datasheet


Microchip MCP2562

MCP2562; s Pins are Disconnected when Device is U npowered - An Unpowered Node or Brown-O ut Event will Not Load the CAN Bus • Detection of Ground Fault: - Permanent Dominant Detection on TXD - Permanent D ominant Detection on Bus • Power-on R eset and Voltage Brown-Out Protection o n VDD and VIO Pin • Protection Agains t Damage Due to Short-Circuit Condition s (Positive or Negative .


Microchip MCP2562

Battery Voltage) • Protection Against High-Voltage Transients in Automotive E nvironments • Automatic Thermal Shutd own Protection • Suitable for 12V and 24V Systems • Meets or exceeds strin gent automotive design requirements inc luding .


Microchip MCP2562

.

Part

MCP2562

Description

High-Speed CAN Transceiver



Feature


MCP2561/2 High-Speed CAN Transceiver Fe atures: • Supports 1 Mb/s Operation Implements ISO-11898-5 Standard Phys ical Layer Requirements • Very Low St andby 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 t o Stabilize Common Mode in Biased Split Termination Schemes • CAN Bu.
Manufacture

Microchip

Datasheet
Download MCP2562 Datasheet




 MCP2562
MCP2561/2
High-Speed CAN Transceiver
Features:
• Supports 1 Mb/s Operation
• Implements 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 and VIO 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 Automo-
tive Applications”, Version 1.3, May 2012
• High-Noise Immunity Due to Differential Bus
Implementation
• High ESD Protection on CANH and CANL, Meets
IEC61000-4-2 greater ±8 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 MCP2561/2 is a Microchip Technology Inc. second
generation high-speed CAN transceiver. It serves as an
interface between a CAN protocol controller and the
physical two-wire CAN bus.
The device meets the automotive requirements for
high-speed (up to 1 Mb/s), low quiescent current,
electromagnetic compatibility (EMC) and electrostatic
discharge (ESD).
Package Types
MCP2561
PDIP, SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 SPLIT
MCP2562
PDIP, SOIC
TXD 1
VSS 2
VDD 3
RXD 4
8 STBY
7 CANH
6 CANL
5 VIO
MCP2561
3x3 DFN*
TXD 1
8 STBY
VSS 2 EP 7 CANH
VDD 3 9 6 CANL
RXD 4
5 SPLIT
MCP2562
3x3 DFN*
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
MCP2561/2 Family Members
Device
Feature
Description
MCP2561
Split pin
Common mode stabilization
MCP2562
VIO pin
Internal level shifter on digital I/O pins
Note: For ordering information, see the “Product Identification System” section on page 27.
2013 Microchip Technology Inc.
DS25167B-page 1




 MCP2562
MCP2561/2
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 MCP2561 has the SPLIT pin.
3: Only MCP2562 has the VIO pin. In MCP2561, the supply for the digital I/O is internally connected to VDD.
DS25167B-page 2
2013 Microchip Technology Inc.




 MCP2562
MCP2561/2
1.0 DEVICE OVERVIEW
1.1 Mode Control Block
The MCP2561/2 is a high-speed CAN, fault-tolerant
device that serves as the interface between a CAN
protocol controller and the physical bus. The
MCP2561/2 device provides differential transmit and
receive capability for the CAN protocol controller, and
is fully compatible with the ISO-11898-5 standard. It will
operate at speeds of up to 1 Mb/s.
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 MCP2561/2 supports two modes of operation:
• Normal
• Standby
These modes are summarized in Table 1-1.
1.1.1 NORMAL MODE
Normal mode is selected by applying a low-level 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 a high-level 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 block are enabled in order 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.
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 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 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 differ-
ential 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 low-
ered due to the decreased power dissipation in the
transmitter outputs. This protection is essential to
protect against bus line short-circuit-induced damage.
2013 Microchip Technology Inc.
DS25167B-page 3



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