TJA1024HG

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TJA1024HG

+Nomenclature

QUAD LIN 2.2A/SAE J2602 TRANSCEI

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Présentation

Description

The TJA1024HG is a high-speed transceiver for automotive Local Interconnect Network (LIN) applications. It serves as an interface between a LIN controller and the physical bus, facilitating reliable communication within vehicle networks. This transceiver supports data rates up to 20 Kbps and is compliant with LIN 2.0, 2.1, and ISO 17987-4:2016 standards, ensuring compatibility with various automotive protocols.
The TJA1024HG offers several features designed for automotive environments, including low electromagnetic emissions, high electromagnetic immunity, and low power consumption. It operates with a supply voltage range from 5V to 27V, making it suitable for 12V or 24V systems. The device also includes diagnostic capabilities for data communication errors, enhancing system reliability.
Key features include sleep and wake-up functions, which help minimize power usage when the vehicle is not in operation, and a slew rate control to optimize signal integrity and reduce electromagnetic interference (EMI). The TJA1024HG is generally used in applications like door modules, climate control, and lighting systems within vehicles.

Equivalent

The TJA1024HG is a LIN (Local Interconnect Network) transceiver chip commonly used in automotive applications. Equivalent products include the Microchip ATA663211, Infineon TLE7259-3GE, and ON Semiconductor NCV7321. These alternatives provide similar LIN transceiver functionalities essential for automotive network communication systems. Always check the datasheets for specific electrical characteristics and pin compatibility.

Features

The TJA1024HG is a LIN (Local Interconnect Network) transceiver designed for automotive applications. Key features include:
1. LIN Compatibility: Compliant with LIN 2.0, 2.1, and SAE J2602 standards, ensuring reliable communication in automotive environments.

2. Supply Voltage: Operates at a supply voltage of 7V to 18V, suitable for automotive systems.
3. Low Power: Offers a low-power sleep mode to minimize energy consumption when the LIN bus is inactive.
4. Wake-Up Capability: Supports wake-up functionality via LIN bus or local wake-up inputs.
5. Short-Circuit Protection: Equipped with over-temperature and short-circuit protection to enhance reliability and safety.
6. EMI Performance: Designed to reduce electromagnetic interference, ensuring compatibility with the automotive electromagnetic environment.
7. Robustness: Provides high ESD protection and is capable of withstanding automotive environment stress.
8. Temperature Range: Functions effectively over a wide temperature range, typically from -40°C to +125°C.
These features make the TJA1024HG a robust choice for LIN communication in automotive applications, balancing performance, energy efficiency, and reliability.

Pinout

The TJA1024HG is a three-channel LIN (Local Interconnect Network) transceiver. It typically comes in a 20-pin HVQFN (Half-size Very Thin Quad Flat No-lead) package. Here is a brief overview of its pin functions:
1. LIN1, LIN2, LIN3: LIN bus line connections for each channel.
2. TXD1, TXD2, TXD3: Transmit data input for each channel.
3. RXD1, RXD2, RXD3: Receive data output for each channel.
4. EN: Enable input for normal operating mode.
5. NSTB: Not Standby input; used to control standby mode.
6. INH: Inhibit output to control an external voltage regulator.
7. VIO: Supply input for digital I/O.
8. VCC: Supply voltage for the transceiver.
9. GND: Ground connection.
10. WAKE1, WAKE2, WAKE3: Wake-up inputs for each channel.
The TJA1024HG is designed for automotive applications and ensures reliable communication between microcontrollers and LIN bus lines, supporting functions like wake-up, low power consumption, and robust data transmission.

Manufacturer

The TJA1024HG is manufactured by NXP Semiconductors. NXP is a global semiconductor company headquartered in Eindhoven, Netherlands. It specializes in producing integrated circuits and related technologies used in automotive, industrial, mobile, and communication infrastructure. NXP is known for its innovation in areas like secure connectivity, automotive electronics, and the Internet of Things (IoT).

Application

The TJA1024HG is an integrated circuit commonly used in automotive applications, particularly for implementing Local Interconnect Network (LIN) communication protocols. Its primary application areas include:
1. Automotive Electronics: Used in body control modules, lighting systems, and climate control for efficient communication between various electronic components.

2. In-Vehicle Networking: Facilitates communication in distributed automotive systems, allowing for reliable data exchange between sensors and actuators.
3. Smart Actuators and Sensors: Supports LIN-based smart actuators and sensors, enhancing the functionality and integration in automotive systems.
4. Vehicle Comfort Systems: Employed in seat control, sunroof, and window lifter systems to ensure seamless operation.
Its robust features make it ideal for enhancing vehicle network performance and reliability.

Package

The TJA1024HG is typically available in a HVQFN (Quad Flat No-leads) package. This type of package is compact and suitable for surface mounting, offering good thermal performance and electrical characteristics.

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