MCP25055-I/SL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Communication and control in automotive applications
• Characteristics: High-speed CAN transceiver, low-power consumption, small package size
• Package: SOIC-8
• Essence: Reliable and efficient communication between microcontrollers and the CAN bus
• Packaging/Quantity: Available in reels of 2,500 units

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Data Rate: Up to 1 Mbps
• Transmitting Distance: Up to 500 meters
• Current Consumption: 5 mA (typical)
• Protection Features: Thermal shutdown, short-circuit protection, voltage spike suppression

Pin Configuration

The MCP25055-I/SL has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. VDD: Supply voltage input
2. TXD: Transmit data output
3. RXD: Receive data input
4. VSS: Ground
5. SLOPE: Slope control input
6. RS: Resistor select input
7. CS: Capacitor select input
8. VREF: Reference voltage output

Functional Features

• Supports both standard and extended CAN frames
• Implements CAN 2.0B protocol
• Provides bus wake-up capability
• Supports remote frame requests
• Features automatic thermal shutdown for overtemperature protection

Advantages and Disadvantages

Advantages

• High-speed communication with low power consumption
• Small package size allows for space-efficient designs
• Reliable performance in automotive environments
• Protection features ensure robust operation

Disadvantages

• Limited to automotive applications
• Requires additional components for complete CAN bus implementation

Working Principles

The MCP25055-I/SL is a high-speed CAN transceiver that enables communication between microcontrollers and the CAN bus. It operates based on the CAN 2.0B protocol, supporting both standard and extended frames. The transceiver converts the digital signals from the microcontroller into differential voltage signals suitable for transmission over the CAN bus. It also receives and decodes incoming signals from the bus, providing them to the microcontroller.

Detailed Application Field Plans

The MCP25055-I/SL is primarily designed for use in automotive applications. It can be employed in various systems such as:

1. Engine control units (ECUs)
2. Body control modules (BCMs)
3. Transmission control units (TCUs)
4. Anti-lock braking systems (ABS)
5. Airbag control units (ACUs)

These applications require reliable and efficient communication between different electronic control units within a vehicle.

Detailed and Complete Alternative Models

1. MCP2561: Similar high-speed CAN transceiver with improved ESD protection
2. SN65HVD230: CAN transceiver with low-power standby mode
3. TJA1050: Standalone CAN controller interface with integrated transceiver

These alternative models offer similar functionality and can be considered as substitutes for the MCP25055-I/SL in specific applications.

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