TJA1085HN,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Automotive Ethernet Transceiver
• Characteristics:
  • High-speed communication
  • Robustness and reliability in automotive environments
  • Low power consumption
  • Small package size
• Package: HVSON8 (Very Small Outline No-Lead)
• Essence: TJA1085HN,118 is a high-performance automotive Ethernet transceiver designed for use in automotive applications.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 3.0 V to 3.6 V
• Operating Temperature Range: -40°C to +105°C
• Data Rate: Up to 100 Mbps
• ESD Protection: ±4 kV HBM (Human Body Model)
• Sleep Current: <10 µA
• Wake-Up Time: <50 µs

Detailed Pin Configuration

The TJA1085HN,118 has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power supply voltage | | 2 | TXD | Transmit data input | | 3 | RXD | Receive data output | | 4 | GND | Ground | | 5 | WAKE | Wake-up input | | 6 | SLP | Sleep mode input | | 7 | EN | Enable input | | 8 | VDDIO | I/O power supply voltage |

Functional Features

• Supports full-duplex communication
• Implements the IEEE 802.3bw standard for 100BASE-T1 Ethernet
• Provides advanced diagnostics and fault detection features
• Supports low-power sleep mode for energy efficiency
• Offers wake-up functionality for remote activation

Advantages and Disadvantages

Advantages: - High-speed communication suitable for automotive applications - Robustness and reliability in harsh automotive environments - Low power consumption for improved energy efficiency - Compact package size for space-constrained designs

Disadvantages: - Limited to automotive applications, not suitable for general-purpose use - Requires knowledge of automotive Ethernet protocols for proper integration

Working Principles

The TJA1085HN,118 is designed to enable high-speed communication over a single twisted-pair cable in automotive Ethernet networks. It implements the IEEE 802.3bw standard for 100BASE-T1 Ethernet, providing reliable data transmission in automotive environments. The transceiver supports full-duplex communication and incorporates advanced diagnostics and fault detection features to ensure system integrity.

Detailed Application Field Plans

The TJA1085HN,118 is primarily used in automotive applications that require high-speed Ethernet communication. Some common application fields include: - In-vehicle infotainment systems - Advanced driver assistance systems (ADAS) - Automotive gateways and routers - Body control modules - Telematics systems

Detailed and Complete Alternative Models

Some alternative models to the TJA1085HN,118 that can be considered for similar automotive Ethernet transceiver requirements are: - TJA1100: Supports 1000BASE-T1 Gigabit Ethernet - TJA1101: Provides additional features like integrated voltage regulators and enhanced diagnostics - TJA1102: Offers dual-channel capability for increased flexibility in network design

Please note that the above list is not exhaustive, and there may be other alternative models available from different manufacturers.

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