UJA1078TW/3V3,118

Product Overview

• Category: Integrated Circuit (IC)
• Use: Automotive LIN Transceiver
• Characteristics: High-speed communication, low power consumption, robustness, compact package
• Package: TSSOP-14
• Essence: UJA1078TW/3V3,118 is a highly integrated LIN transceiver designed for automotive applications. It enables reliable and cost-effective communication between various electronic control units (ECUs) in a vehicle.
• Packaging/Quantity: Available in tape and reel packaging with 2,500 units per reel.

Specifications

• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +125°C
• Data Rate: Up to 20 kbps
• Current Consumption: Low quiescent current of 10 µA (typical)
• Protection Features: Overtemperature shutdown, short-circuit protection, undervoltage detection

Detailed Pin Configuration

The UJA1078TW/3V3,118 IC has the following pin configuration:

1. VBAT: Battery supply voltage input
2. GND: Ground reference
3. TXD: LIN bus transmitter data output
4. RXD: LIN bus receiver data input
5. WAKE: Wake-up input
6. EN: Enable input
7. STB: Standby input
8. LIN: LIN bus interface
9. VREF: Reference voltage output
10. VIO: Digital I/O supply voltage
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection

Functional Features

• High-Speed Communication: Supports LIN protocol with data rates up to 20 kbps, enabling fast and efficient communication between ECUs.
• Low Power Consumption: Features a low quiescent current of 10 µA, ensuring minimal power consumption during standby or idle modes.
• Robustness: Provides protection features such as overtemperature shutdown, short-circuit protection, and undervoltage detection, enhancing the reliability and durability of the LIN bus system.
• Compact Package: Housed in a TSSOP-14 package, the UJA1078TW/3V3,118 offers a compact form factor suitable for space-constrained automotive applications.

Advantages and Disadvantages

Advantages: - High-speed communication capability - Low power consumption - Robust protection features - Compact package size

Disadvantages: - Limited data rate compared to other high-speed communication protocols - Restricted pin configuration options due to the fixed TSSOP-14 package

Working Principles

The UJA1078TW/3V3,118 LIN transceiver operates based on the Local Interconnect Network (LIN) protocol. It acts as an interface between various ECUs in a vehicle, facilitating reliable and efficient communication. The transceiver receives data from the transmitting ECU through the RXD pin and transmits data to the receiving ECU via the TXD pin. It also supports wake-up functionality, allowing the transceiver to enter a low-power mode and wake up upon receiving a specific signal on the WAKE pin.

Detailed Application Field Plans

The UJA1078TW/3V3,118 LIN transceiver is widely used in automotive applications, including but not limited to:

1. Body Control Modules (BCMs)
2. Door Control Units (DCUs)
3. Seat Control Units (SCUs)
4. Climate Control Modules (CCMs)
5. Lighting Control Modules (LCMs)
6. Infotainment Systems
7. Steering Wheel Controls
8. Instrument Clusters

Detailed and Complete Alternative Models

1. UJA1076TW/3V3,118: Similar to UJA1078TW/3V3,118 but with a lower data rate of 10 kbps.
2. UJA1079TW/3V3,118: Similar to UJA1078TW/3V3,118 but with additional protection features and higher data rate support up to 100 kbps.
3. UJA1080TW/3V3,118: Advanced LIN transceiver with enhanced diagnostic capabilities and extended temperature range.

Please note that the above alternative models are just a few examples, and there are several other options available in the market.

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