PCA82C250/N4,112

Product Overview

Category: Integrated Circuit (IC)

Use: The PCA82C250/N4,112 is a high-speed CAN transceiver designed for use in automotive and industrial applications. It provides a physical interface between the microcontroller and the CAN bus, allowing for reliable communication between different nodes in a network.

Characteristics: - High-speed data transmission - Low electromagnetic emissions - Robustness against electrical disturbances - Wide temperature range (-40°C to +125°C) - Low power consumption

Package: The PCA82C250/N4,112 is available in a small outline package (SO8N) with four pins on each side, totaling eight pins. This package offers compactness and ease of integration into various electronic systems.

Essence: The essence of the PCA82C250/N4,112 lies in its ability to facilitate efficient and secure communication over the CAN bus, enabling seamless interaction between different components in automotive and industrial environments.

Packaging/Quantity: The PCA82C250/N4,112 is typically packaged in reels or tubes, with a quantity of 2,500 units per reel/tube.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Data Rate: Up to 1 Mbps
• Transmitting Output Resistance: 45Ω
• Receiving Input Resistance: 12kΩ
• Operating Temperature Range: -40°C to +125°C
• ESD Protection: ±8 kV (HBM)
• Package Type: SO8N

Detailed Pin Configuration

The PCA82C250/N4,112 features the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Supply voltage input | | 2 | GND | Ground | | 3 | TXD | Transmit Data | | 4 | RXD | Receive Data | | 5 | VREF | Reference voltage output | | 6 | CANL | CAN bus low-side line | | 7 | CANH | CAN bus high-side line | | 8 | SLP | Sleep mode control input |

Functional Features

• High-speed data transmission: The PCA82C250/N4,112 supports data rates of up to 1 Mbps, allowing for fast and efficient communication between nodes in a CAN network.
• Low electromagnetic emissions: This transceiver is designed to minimize electromagnetic emissions, ensuring compliance with stringent automotive and industrial standards.
• Robustness against electrical disturbances: The device features built-in protection mechanisms that enhance its resistance to electrical disturbances, making it suitable for use in harsh environments.
• Sleep mode functionality: The SLP pin allows the transceiver to enter a low-power sleep mode when not actively transmitting or receiving data, reducing overall power consumption.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low electromagnetic emissions - Robustness against electrical disturbances - Wide operating temperature range - Compact package size for easy integration

Disadvantages: - Limited pin count may restrict certain advanced functionalities - Requires external microcontroller for complete system implementation

Working Principles

The PCA82C250/N4,112 operates based on the Controller Area Network (CAN) protocol. It acts as an interface between the microcontroller and the CAN bus, converting the digital signals from the microcontroller into differential voltage levels suitable for transmission over the bus. It also receives differential signals from the bus and converts them back into digital signals for the microcontroller to process.

The transceiver utilizes a combination of analog and digital circuitry to ensure reliable data transmission and reception. It incorporates features such as voltage level shifting, bus termination, and error detection to maintain signal integrity and enhance the overall robustness of the communication system.

Detailed Application Field Plans

The PCA82C250/N4,112 is widely used in various automotive and industrial applications, including:

1. Automotive:

   • In-vehicle networks (e.g., body control modules, powertrain systems)
   • Advanced driver assistance systems (ADAS)
   • Telematics and infotainment systems

2. Industrial:

   • Factory automation
   • Process control systems
   • Robotics and machinery

The transceiver's high-speed capabilities, robustness, and low electromagnetic emissions make it suitable for demanding environments where reliable communication is critical.

Detailed and Complete Alternative Models

1. MCP2551: A popular alternative CAN transceiver with similar specifications and functionality.
2. TJA1050: Another commonly used CAN transceiver offering comparable performance and compatibility.
3. SN65HVD230: A robust CAN transceiver designed for industrial applications, featuring enhanced protection against electrical disturbances.

These alternative models provide options for designers