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Product Detailed Parameters
- Description：IC LIN-TO-LIN GW CTRLR 12DFN
- Series：-
- Mfr：Melexis Technologies NV
- Package：Bulk
- Applications：LIN Controller
- Core Processor：16-Bit RISC
- Program Memory Type：FLASH (32kB), ROM (16kB)
- Controller Series：-
- RAM Size：2K x 8
- Interface：UART
- Number of I/O：4
- Voltage - Supply：5.5V ~ 18V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-VFDFN Exposed Pad
- Supplier Device Package：12-DFN (4x4)
- Grade：-
- Qualification：-
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Overview
The MLX81120 is a fully integrated LIN slave IC designed for automotive ambient lighting applications. It features four high-voltage capable outputs to independently drive one RGB LED and an additional white LED. The device supports LIN 2.x and SAE J2602 bus systems and includes a second LIN physical layer with UART functionality, enabling it to act as a master on a private LIN bus. Key specifications include a 16-bit MCU with 32kB Flash (ECC), 16k ROM, 2kB RAM, and 380 Byte EEPROM (ECC). It operates within an automotive temperature range of -40°C to 125°C and offers low standby current consumption of typically 20µA in sleep mode.
Feature Summary
- Dual LIN Physical Layers: Primary LIN PHY for slave communication and a secondary LIN PHY with UART for private LIN master functionality.
- Integrated 16-bit MCU: Features 32kB Flash with ECC, 16k ROM containing LIN driver and bootloader, 2kB RAM, and 380 Byte EEPROM with ECC.
- Flexible I/O Configuration: Includes three high-voltage inputs/outputs, programmable constant current sources (0-30mA), 16-bit PWM outputs, and interrupt-capable inputs.
- Diagnostic and Monitoring: Equipped with integrated battery monitor, temperature monitor, over-temperature shutdown, load dump protection, and IO diagnostics.
Applications
- LIN-to-LIN Gateway
- Segmentation or zoning of ambient light applications
- Extension of LIN modules to pass the limit of standard LIN topology
Procurement Notes
Verify the specific ordering suffix AAD-999-SP against official Melexis documentation to confirm package type, tape-and-reel quantity, and regional availability. Ensure compatibility with the DFN4x4 12-pin package requirements for your PCB layout. Confirm that the component meets the required automotive quality standards for your specific vehicle platform before finalizing procurement.
Selection Notes
Select the MLX81120 when a design requires both LIN slave capabilities for ambient lighting control and LIN master functionality for expanding bus segments. It is suitable for applications needing independent control of RGB and white LEDs with precise current regulation. Consider this part if system architecture benefits from reducing bill-of-materials by integrating gateway functions into a single node.
Part Context
The MLX81120 belongs to Melexis' family of smart LED drivers for automotive lighting. It is specifically engineered to simplify car architecture by combining ambient light control with bus extension capabilities. The device targets applications requiring flexible I/O configurations and robust diagnostic features within a compact DFN4x4 12-pin package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult Melexis technical support for cross-reference information regarding pin-compatible or functionally equivalent alternatives.
