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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Melexis Technologies NV MLX81114KDC-AAB-000-RE

Name: MLX81114KDC-AAB-000-RE
Brand: Melexis Technologies NV
SKU: MLX81114KDC-AAB-000-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX81114KDC-AAB-000-RE

Manufacturer:: Melexis Technologies NV

Category:: Application Specific Microcontrollers

Package:: 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Datasheet:: MLX81114KDC-AAB-000-RE.pdf

Description:: IC LIN RGB CTRLR 32KB 4CH 8SOIC

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Product details

Overview

MLX81114KDC-AAB-000-RE from Melexis is a fully integrated automotive LIN slave IC for RGB+W LED ambient lighting control, featuring a 16-bit RISC microcontroller, LIN 2.x/J2602 transceiver, four 60 mA current-controlled outputs, 4×16-bit PWM channels, and memory protection. It operates across −40 °C to +125 °C and supports autoaddressing via bus shunt method in vehicle cabin lighting systems.

For engineers reviewing the MLX81114KDC-AAB-000-RE datasheet, pinout, applications, or equivalent options, key selection criteria include LIN protocol compliance (SAE J2602), integrated current sources for RGB+W drive, EEPROM-based configuration storage, ASIL-A support per ISO 26262, and AEC-Q100 qualification for under-hood ambient lighting modules.

Technical Context

The MLX81114KDC-AAB-000-RE integrates a LIN protocol controller and physical-layer transceiver compliant with LIN 2.x and SAE J2602, supporting up to 19.2 kBaud frame processing with low CPU interrupt load. Its 16-bit pipelined RISC core includes 32 kB Flash, 2 kB RAM, 512 B EEPROM, and a math co-processor for 32-bit MUL/DIV operations.

Four high-voltage I/Os deliver programmable constant current (up to 60 mA) per channel for RGB+W LEDs, each with open/short diagnostics. The device includes a 10-bit ADC with DMA, internal temperature sensor, battery monitor with over/under-voltage detection, and sleep-mode current as low as 25 µA.

Key Specifications

Parameter	Value and Actual Design Meaning
LIN Compliance	Fully compliant with LIN 2.x and SAE J2602, enabling plug-and-play integration into automotive body networks without external protocol translation.
Current Outputs	4× high-voltage I/Os, each configurable as constant-current source up to 60 mA, directly driving RGB+W LED strings without external drivers.
PWM Resolution	4×16-bit PWM generators with configurable resolution, supporting precise color mixing and smooth dimming transitions in ambient lighting.
Memory Protection	Hardware-enforced memory protection option (enabled in MLX81114 variant), preventing unauthorized firmware modification or EEPROM overwrite in production systems.
Operating Temp	−40 °C to +125 °C ambient range, qualified per AEC-Q100 Grade 1, suitable for dashboard, door panel, and center console mounting locations.
Supply Robustness	Withstands 28 V jump-start pulses and monitors VBat with over/under-voltage detection, eliminating need for external protection circuitry.

Pinout & Package

MLX81114KDC-AAB-000-RE is housed in an SOIC8 package with exposed thermal pad (package code KDC), optimized for thermal dissipation in compact automotive lighting modules.

Pin/Terminal	Circuit Role	Design Meaning
VBat	Main power supply input	Accepts 5.5–27 V DC; internally regulates core logic and LIN transceiver; supports 28 V jump-start tolerance.
GND	Power and signal reference	Dedicated ground return path for analog/digital domains and thermal pad connection point.
LIN_IN / LIN_OUT	LIN bus differential interface	Integrated transceiver pins-LIN_IN receives bus signal, LIN_OUT drives bus; supports autoaddressing via shunt method.
LC0–LC3	LED current output terminals	Four high-side current sources (60 mA max each); individually PWM-controllable for RGB+W channel drive and open/short diagnostics.
VS	Supply sense input	Monitors VBat for battery voltage reporting and under/over-voltage fault detection with hysteresis.

Key Features

Feature	Design Value
Integrated LIN Transceiver + Controller	Eliminates need for external LIN PHY or protocol stack implementation-reduces BOM count and software development effort.
4× Configurable Current Sources	Enables direct RGB+W LED drive with per-channel diagnostic feedback (open/short), reducing external component count and PCB area.
Memory Protection Option	Prevents field firmware corruption or unauthorized reprogramming in deployed modules-critical for OEM production security requirements.
ASIL-A Support (ISO 26262)	Provides documented safety mechanisms (watchdog timers, memory ECC, voltage monitoring) enabling use in safety-conscious ambient lighting functions.
Low Sleep Current (25 µA)	Extends vehicle battery life during ignition-off periods-essential for always-on ambient lighting features without parasitic drain concerns.

Applications

Dashboard Ambient Lighting	Door Panel Mood Lighting
Use Scenario: Dynamic color-matching of instrument cluster backlighting to driver-selected themes or ambient conditions. IC Role / Device Role / Timing Role: LIN slave node executing real-time PWM updates and LED current regulation based on master commands. Use Value: Enables seamless color transitions and consistent brightness across RGB channels using integrated 16-bit PWM and current matching.	Use Scenario: Soft-glow illumination along door trim with responsive on/off and fade effects during entry/exit sequences. IC Role / Device Role / Timing Role: Standalone LIN endpoint managing four independent LED zones with built-in diagnostics and low-power sleep wake-up. Use Value: Reduces system-level diagnostic overhead by embedding open/short detection and eliminating need for external current-sense resistors.
Center Console Accent Lighting	Footwell Illumination
Use Scenario: Multi-color accent strips synchronized with infotainment UI states (e.g., HVAC mode, audio source). IC Role / Device Role / Timing Role: Configurable RGB+W driver receiving LIN frames containing color and intensity data; applies hardware PWM timing without CPU intervention. Use Value: Offloads timing-critical PWM generation from main ECU, ensuring jitter-free illumination updates even under high bus load.	Use Scenario: Dimmable white+accent lighting activated by door opening or foot motion detection. IC Role / Device Role / Timing Role: Low-quiescent-current LIN node maintaining readiness in sleep mode (25 µA), waking on LIN activity or timer event. Use Value: Guarantees sub-100 ms wake-to-output response while meeting OEM battery drain limits for parked vehicle scenarios.

Dashboard Ambient Lighting

Door Panel Mood Lighting

Use Scenario: Dynamic color-matching of instrument cluster backlighting to driver-selected themes or ambient conditions.

IC Role / Device Role / Timing Role: LIN slave node executing real-time PWM updates and LED current regulation based on master commands.

Use Value: Enables seamless color transitions and consistent brightness across RGB channels using integrated 16-bit PWM and current matching.

Use Scenario: Soft-glow illumination along door trim with responsive on/off and fade effects during entry/exit sequences.

IC Role / Device Role / Timing Role: Standalone LIN endpoint managing four independent LED zones with built-in diagnostics and low-power sleep wake-up.

Use Value: Reduces system-level diagnostic overhead by embedding open/short detection and eliminating need for external current-sense resistors.

Center Console Accent Lighting

Footwell Illumination

Use Scenario: Multi-color accent strips synchronized with infotainment UI states (e.g., HVAC mode, audio source).

IC Role / Device Role / Timing Role: Configurable RGB+W driver receiving LIN frames containing color and intensity data; applies hardware PWM timing without CPU intervention.

Use Value: Offloads timing-critical PWM generation from main ECU, ensuring jitter-free illumination updates even under high bus load.

Use Scenario: Dimmable white+accent lighting activated by door opening or foot motion detection.

IC Role / Device Role / Timing Role: Low-quiescent-current LIN node maintaining readiness in sleep mode (25 µA), waking on LIN activity or timer event.

Use Value: Guarantees sub-100 ms wake-to-output response while meeting OEM battery drain limits for parked vehicle scenarios.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LIN RGB LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MLX81113KDC-AAB-000-RE	Lacks hardware memory protection; identical pinout, peripherals, and LIN functionality.	Suitable for non-security-sensitive ambient lighting where firmware update control is managed externally.	Select when cost optimization is prioritized and memory write protection is not required by OEM specification.
TLD5098EL	Multi-channel linear LED driver with LIN interface but no embedded MCU; requires external microcontroller for color management.	Used in simpler monochrome or fixed-color LED modules where dynamic RGB control is not needed.	Choose when system already includes a host MCU and only analog LED current control with LIN communication is required.

Compared with MLX81113KDC-AAB-000-RE, the MLX81114KDC-AAB-000-RE adds memory protection for secure firmware deployment; versus TLD5098EL, it delivers full RGB+W control autonomy without host MCU dependency-reducing total system cost and latency.

Availability

MLX81114KDC-AAB-000-RE is available at Aetrix Electronics and suitable for automotive dashboard lighting, door panel mood lighting, and center console accent lighting requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for MLX81114KDC-AAB-000-RE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Melexis is a Belgian semiconductor company specializing in magnetic sensing, infrared thermometry, and automotive ICs, with global design centers and AEC-Q100-focused manufacturing partnerships.

The MLX81114 belongs to Melexis' LIN RGB driver product line, engineered specifically for cost-sensitive, space-constrained automotive ambient lighting modules requiring integrated protocol handling, current regulation, and functional safety support.

FAQ

What LIN protocol versions does the MLX81114KDC-AAB-000-RE support?

The MLX81114KDC-AAB-000-RE supports LIN 2.0, 2.1, 2.2, and SAE J2602 specifications, including frame processing, autoaddressing via bus shunt method, and baud rates up to 19.2 kBaud. Its integrated LIN controller and transceiver eliminate external protocol stack dependencies, and all timing and error-handling functions are implemented in hardware per specification.

Does the MLX81114KDC-AAB-000-RE include built-in diagnostics for LED faults?

Yes, the MLX81114KDC-AAB-000-RE provides per-channel open-circuit and short-circuit diagnostics on all four LCx outputs. These diagnostics operate autonomously during normal operation and sleep mode, reporting status via LIN frames. No external sense resistors or comparators are required-the functionality is embedded in the analog front-end and monitored by dedicated hardware logic.

What is the purpose of the memory protection option in the MLX81114KDC-AAB-000-RE?

The memory protection option in the MLX81114KDC-AAB-000-RE prevents unauthorized writes to Flash and EEPROM memory regions during field operation. This feature enforces firmware integrity and blocks accidental or malicious reprogramming-making MLX81114KDC-AAB-000-RE suitable for OEM deployments where secure boot and update policies are mandated.

Can the MLX81114KDC-AAB-000-RE drive white LEDs in addition to RGB?

Yes, the MLX81114KDC-AAB-000-RE supports RGB+W configurations via its four independently controllable current sources (LC0–LC3). Each output delivers up to 60 mA with 16-bit PWM resolution, allowing precise intensity control for white LED channel mixing-enabling tunable white light (CCT adjustment) alongside full RGB color gamut in single-package solutions.

Is the MLX81114KDC-AAB-000-RE qualified for automotive use?

Yes, the MLX81114KDC-AAB-000-RE is AEC-Q100 Grade 1 qualified (−40 °C to +125 °C), developed per ISO 26262 for ASIL-A systems, and includes integrated safety mechanisms such as watchdog timers, voltage monitoring, and memory integrity checks. It meets automotive EMC and reliability requirements for under-hood and cabin ambient lighting applications.

MLX81114KDC-AAB-000-RE Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Applications:: Intelligent LED Driver

Core Processor:: 16-Bit

Program Memory Type:: FLASH (32kB), EEPROM (512B)

Controller Series:: -

RAM Size:: 2K x 8

Interface:: LIN

Number of I/O:: 4

Voltage - Supply:: -

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC-EP

MLX81114KDC-AAB-000-RE FAQ

1.How can I place an order for MLX81114KDC-AAB-000-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX81114KDC-AAB-000-RE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MLX81114KDC-AAB-000-RE reliable?

The price and inventory of MLX81114KDC-AAB-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX81114KDC-AAB-000-RE is usually 5 days.

3.What payment methods are accepted for MLX81114KDC-AAB-000-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX81114KDC-AAB-000-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX81114KDC-AAB-000-RE?

MLX81114KDC-AAB-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX81114KDC-AAB-000-RE order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MLX81114KDC-AAB-000-RE?

For technical support, including MLX81114KDC-AAB-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX81114KDC-AAB-000-RE requirements.

6.How does Aetrix verify that MLX81114KDC-AAB-000-RE is sourced from the original manufacturer or authorized distributors?

All MLX81114KDC-AAB-000-RE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX81114KDC-AAB-000-RE meets industry standards.

7.What is the process for return or replacement of MLX81114KDC-AAB-000-RE?

All MLX81114KDC-AAB-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX81114KDC-AAB-000-RE, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MLX81114KDC-AAB-000-RE part is unused and in its original packaging.

Return procedure for MLX81114KDC-AAB-000-RE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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