The Dual LIN Click is a Click board™ based on the TLE7268SKXUMA1, a Dual LIN transceiver from Infineon. Given the features included in this transceiver, the Dual LIN transceiver designed for data transmission rates up to 20 kbps being fully compliant to the ISO17987-4, LIN specification 2.2A and SAE J2602 standards.

The Dual LIN Click is supported by a mikroSDK compliant library, which includes functions that simplify software development.

The Dual LIN Click is a dual transceiver for the Local Interconnect Network (LIN) with integrated wake-up and protection features. The Dual LIN Click is designed for in-vehicle networks using data transmission rates up to 20 kbps. This Click board™ contains the TLE7268SKXUMA1 from Infineon, Dual LIN Click includes two independent transceivers that operate as bus drivers between the protocol controller and physical LIN networks.

The Dual LIN Click communicates with the MCU by using the UART RX and TX signals. RX and TX signals are also routed to the header on the edge of the Click board™ so they can be used independently of the mikroBUS™ socket. Its most important features are the fact that it is a two separate single-wire LIN transceiver bus for transmission rates up to 20 kbps and it is compliant to ISO 17987-4 and LIN Specification 2.2A.

The EN1 and EN2 pins are used to enable the functionality of BUS 1 or BUS 2 of the device. When the EN1 pin is set to a HIGH logic level, the BUS 1 of the device is set to work in the normal mode, with the transmission paths from TXD to LIN and from LIN to RXD both active.

When the EN2 pin is set to a HIGH logic level, the BUS 2 of the device is set to work in the normal mode, with the transmission paths from TXD to LIN and from LIN to RXD both active. When the EN1 pin is set to a LOW state, the BUS 1 of the device is put into silent mode, depending on the TX pin state. The EN1 pin has a pull-down resistor, so it is pulled to Ground if it is left afloat. When the EN2 pin is set to a LOW state, the BUS 2 of the device is put into silent mode, depending on the TX pin state. The EN2 pin has a pull-down resistor, so it is pulled to Ground if it is left afloat.

The Dual LIN Click supports different modes of operation of the two transceivers for minimizing ECU current consumption in low power modes, a common INH output can be used for controlling external circuitry, for example voltage regulators. Based on the Infineon BiCMOS technology. It provides excellent ESD robustness together with very high electromagnetic compliance (EMC). The TLE7268SKXUMA1 reaches a very low level of electromagnetic emission (EME) within a broad frequency range and independent from the battery voltage. The TLE7268SKXUMA1 is AEC qualified and tailored to withstand the harsh conditions of the automotive environment.

Some of the key features that are incorporated in the TLE7268SKXUMA1 are overtemperature protection, undervoltage detection. The Dual LIN Click is digital I/O levels compatible with 3.3 V and 5 V microcontrollers, that it is optimized for high electromagnetic compliance (EMC) with very low electromagnetic emission and high immunity to interference. It also features two independent single-wire LIN transceivers in one device and gives out a transmission rate of up to 20 kbps.

Given the features included in this transceiver, the Dual LIN Click can be used for Body Control Modules (BCM) and Gateway.

• Interface: GPIO, UART
• Compatibility: mikroBUS™
• Dimensions: 42.9 x 25.4mm
• Input Voltage: 3.3V or 5V
• LIN bus supply voltage: Min. 5V, Max. 40V

• Schematic
• TLE7268 Datasheet
• mikroSDK
• GitHub