TLE8251VSJXUMA1

Product Overview

Category

The TLE8251VSJXUMA1 belongs to the category of integrated circuits (ICs) and specifically falls under the automotive electronics segment.

Use

This IC is primarily used for communication purposes in automotive applications, particularly in electric vehicles (EVs) and hybrid electric vehicles (HEVs). It enables reliable and efficient data transmission between various electronic control units (ECUs) within the vehicle.

Characteristics

• High-speed communication: The TLE8251VSJXUMA1 supports high-speed communication protocols, allowing for quick and accurate data transfer.
• Robust design: It is designed to withstand harsh automotive environments, including temperature variations, electromagnetic interference, and voltage fluctuations.
• Low power consumption: The IC is optimized for low power consumption, ensuring minimal energy usage in the vehicle's electrical system.
• Compact package: The TLE8251VSJXUMA1 is available in a small and space-saving package, making it suitable for integration into compact automotive designs.
• Reliable performance: It offers excellent reliability and durability, meeting the stringent requirements of automotive applications.

Package and Quantity

The TLE8251VSJXUMA1 is typically packaged in a surface-mount device (SMD) package, such as a QFN (Quad Flat No-leads) package. The exact package dimensions and pin configuration are detailed below. The IC is usually supplied in reels or trays, with quantities varying based on customer requirements.

Specifications

• Communication protocol: CAN (Controller Area Network)
• Supply voltage range: 4.5V to 5.5V
• Operating temperature range: -40°C to +125°C
• Data rate: Up to 1 Mbps
• Number of pins: 32
• Pin pitch: 0.5 mm
• ESD protection: ±4 kV (Human Body Model)

Pin Configuration

The TLE8251VSJXUMA1 features a 32-pin configuration in a QFN package. The pinout diagram and corresponding functions are as follows:

Pin Number | Pin Name | Function -----------|----------|--------- 1 | VBAT | Battery supply voltage 2 | GND | Ground 3 | CANL | CAN low signal 4 | CANH | CAN high signal 5 | WAKE | Wake-up input 6 | STB | Standby input 7-10 | NC | Not connected 11 | RXD | Receive data input 12 | TXD | Transmit data output 13-16 | NC | Not connected 17 | VDD | Digital supply voltage 18-19 | NC | Not connected 20 | VIO | I/O supply voltage 21-24 | NC | Not connected 25 | VSS | Analog ground 26-29 | NC | Not connected 30 | VREF | Reference voltage 31-32 | NC | Not connected

Functional Features

• CAN communication: The TLE8251VSJXUMA1 supports the CAN protocol, enabling reliable and efficient communication between ECUs.
• Wake-up functionality: It includes a wake-up input pin that allows the IC to enter an active state upon receiving a specific signal, facilitating power management.
• Standby mode: The standby input pin enables the IC to enter a low-power standby mode when not actively transmitting or receiving data.
• Error detection and handling: The IC incorporates error detection mechanisms, such as CRC (Cyclic Redundancy Check), to ensure data integrity and robustness in the communication process.
• Diagnostic capabilities: It provides diagnostic features to monitor the health and performance of the communication link, aiding in fault detection and troubleshooting.

Advantages and Disadvantages

Advantages

• High-speed communication enables quick data transfer.
• Robust design ensures reliable performance in automotive environments.
• Low power consumption contributes to energy efficiency.
• Compact package facilitates integration into space-constrained designs.
• Excellent reliability and durability meet automotive requirements.

Disadvantages

• Limited to CAN communication protocol, may not be compatible with other protocols.
• Higher cost compared to non-automotive-specific communication ICs.
• Requires expertise in automotive electronics for proper implementation and usage.

Working Principles

The TLE8251VSJXUMA1 operates based on the principles of the CAN protocol. It utilizes differential signaling on the CANH and CANL pins to transmit and receive data. The IC incorporates internal circuitry to handle the encoding and decoding of data packets, error detection, and fault handling. It interfaces with other ECUs within the vehicle's network, facilitating seamless communication between various subsystems.

Detailed Application Field Plans

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