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Melexis Technologies NV MLX81113KLW-BBB-000-SP
- Part No.:
- MLX81113KLW-BBB-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Application Specific Microcontrollers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MLX81113KLW-BBB-000-SP.pdf
- Description:
- IC LIN RGB CTRLR 32KB 4CH 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,763
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Product details
Overview
MLX81113KLW-BBB-000-SP from Melexis is a fully integrated automotive-grade LIN slave IC for RGB+W LED ambient lighting control, featuring a 16-bit RISC microcontroller, LIN 2.x/J2602 transceiver and protocol controller, four 60 mA current-controlled outputs, four 16-bit PWM channels, and 10-bit ADC with DMA - deployed in interior dome lights, door handle illumination, and center console accent lighting.
For engineers reviewing the MLX81113KLW-BBB-000-SP datasheet, pinout, applications, or equivalent options, key selection considerations include LIN bus compliance (SAE J2602), autoaddressing support via bus shunt method, diagnostic capability for LED open/short/threshold faults, sleep-mode current (25 µA typ), and AEC-Q100 qualification for -40 °C to +125 °C operation.
Technical Context
The MLX81113KLW-BBB-000-SP integrates a LIN physical layer transceiver and protocol controller compliant with LIN 2.x and SAE J2602, supporting up to 19.2 kBaud frame processing with low interrupt load. Its 16-bit pipelined RISC core includes 32 kB Flash, 2 kB RAM, 576 B EEPROM, and a math co-processor for 32-bit MUL/DIV operations.
Four high-voltage I/Os serve as configurable current sources (up to 60 mA each) for RGB+W LED driving, each paired with independent 16-bit PWM generation. Integrated diagnostics monitor LED health (open, short, threshold), while the 10-bit ADC with DMA supports temperature sensing, battery voltage (VBat), and IO monitoring using differential or single-ended inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.x and SAE J2602 compliant transceiver + protocol controller; enables plug-and-play integration into automotive body networks without external LIN interface IC. |
| LED Drive Outputs | 4× high-voltage current sources, each programmable up to 60 mA; supports direct RGB+W LED string drive without external MOSFETs or current-setting resistors. |
| PWM Resolution | 4× 16-bit PWM outputs with configurable resolution; enables precise color mixing and smooth dimming transitions across full brightness range. |
| Diagnostic Coverage | Real-time LED fault detection (open, short, threshold violation); reduces need for external monitoring circuitry and simplifies ASIL-A–compliant system design. |
| Power Efficiency | 25 µA typical standby current in sleep mode; meets stringent automotive low-power requirements during vehicle off-state to prevent battery drain. |
| Temperature Range | -40 °C to +125 °C ambient operating range; qualified per AEC-Q100 Grade 0, suitable for under-dash, door module, and center console mounting locations. |
| Supply Robustness | Withstands 28 V jump-start pulses; integrated battery monitor provides over- and under-voltage detection for VBat supervision without external supervisor IC. |
Pinout & Package
MLX81113KLW-BBB-000-SP is housed in an SOIC8 package with exposed pad for thermal dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBat | Primary supply input | Accepts 5.5–28 V DC; internal regulator powers core logic and analog blocks; withstands 28 V jump-start transients. |
| GND | Ground reference | Analog and digital ground common point; exposed pad must be soldered to PCB thermal pad for thermal and electrical integrity. |
| LIN_IN | LIN bus receiver input | Differential input for LIN bus signal; internal termination and filtering enable robust reception in noisy automotive environments. |
| LIN_OUT | LIN bus driver output | Push-pull LIN driver output; supports autoaddressing via bus shunt method per LIN specification. |
| LC0–LC3 | LED current source outputs | Four high-side current sinks (60 mA max each); directly drive RGB+W LED cathodes; support PWM dimming and open/short diagnostics. |
| VS | Supply sense input | Monitors VBat for battery voltage supervision; feeds integrated over/under-voltage detection logic and ADC channel. |
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 for basic slave node functionality. |
| 4× Configurable Current Sources | Each LCx pin delivers up to 60 mA with programmable current level and PWM timing; enables direct RGB+W LED drive without external drivers or current-setting components. |
| On-chip 10-bit ADC with DMA | Measures VBat, die temperature, and IO voltages with differential/single-ended modes; DMA offloads CPU during sensor acquisition, improving real-time response. |
| Autoaddressing Support | Enables automatic node addressing on LIN bus using bus shunt method; removes manual dip-switch or programming step during module assembly or field replacement. |
| ASIL-A Development Support | Designed per ISO 26262 principles with safety mechanisms including watchdog timers with independent clocks, memory CRC checks, and diagnostic coverage for LED faults. |
Applications
| Interior Dome Lighting | Door Handle Illumination |
|---|---|
Use Scenario: Soft ambient glow above passenger compartment triggered by door opening or ignition state. IC Role / Device Role / Timing Role: LIN slave node receiving color/brightness commands from body control module; drives RGB LEDs with synchronized PWM dimming. Use Value: Enables dynamic color themes matching vehicle mood settings; diagnostic feedback ensures reliability of visible lighting elements. | Use Scenario: Illuminated door handles providing visual cue during nighttime entry, activated by proximity sensor or key fob signal. IC Role / Device Role / Timing Role: Standalone LIN endpoint executing local fade-in/fade-out sequences; uses integrated temperature sensor to adjust brightness vs. ambient conditions. Use Value: Reduces wiring complexity by eliminating dedicated lighting controllers; low standby current prevents parasitic drain during vehicle sleep. |
| Center Console Accent Lighting | Dashboard Ambient Trim |
Use Scenario: Color-coordinated backlighting along gear selector, cup holders, and HVAC controls, responsive to driver-selected theme. IC Role / Device Role / Timing Role: Receives LIN frames containing HSV or RGB values; maps to 16-bit PWM duty cycles across LC0–LC3 outputs for accurate color reproduction. Use Value: Achieves >16 million color combinations with hardware-level PWM resolution; integrated EEPROM stores user preferences across power cycles. | Use Scenario: Subtle edge lighting around instrument cluster bezel and infotainment frame, adapting to ambient light sensor input. IC Role / Device Role / Timing Role: Processes local ADC readings (ambient light, temperature) and executes closed-loop brightness/color adjustment autonomously. Use Value: Maintains consistent visual hierarchy without host MCU intervention; diagnostic alerts flag LED degradation before visible failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN-based RGB LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX81115KLW-BAA-000-SP | Same core architecture but with enhanced LIN diagnostics (including bus error logging) and extended EEPROM (1 kB); no change in pinout or drive capability. | Targeted at higher-tier modules requiring deeper LIN bus visibility and longer configuration history retention. | Select MLX81115 when diagnostic traceability and firmware update resilience are required beyond base ambient lighting needs. |
| TJA1021T/3/CM,118 | Standalone LIN transceiver only - no microcontroller, PWM, or LED drivers; requires external MCU and LED driver ICs. | Suitable for custom designs where flexibility in LED topology or control algorithm outweighs integration benefits. | Choose TJA1021T only if existing MCU infrastructure exists and discrete LED driver selection is preferred for thermal or layout reasons. |
Compared with MLX81113KLW-BBB-000-SP, MLX81115 offers expanded diagnostics and EEPROM capacity for advanced commissioning, while TJA1021T demands full external control stack but allows topology customization - making MLX81113KLW-BBB-000-SP optimal for cost-sensitive, rapid-deployment ambient lighting nodes.
Availability
MLX81113KLW-BBB-000-SP is available at Aetrix Electronics and suitable for interior dome lighting, door handle illumination, and center console accent lighting requiring stable component supply, automotive qualification, and LIN bus interoperability.
Supply support for MLX81113KLW-BBB-000-SP 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 manufacturing and automotive qualification expertise.
The MLX81113 product line delivers single-chip LIN slave solutions for ambient lighting, targeting simplified, ASIL-A–aligned RGB+W LED control in cost-sensitive automotive interior modules.
FAQ
What LIN protocol versions does MLX81113KLW-BBB-000-SP support?
The MLX81113KLW-BBB-000-SP supports LIN 2.0, 2.1, 2.2, and SAE J2602 specifications. Its integrated LIN protocol controller handles frame processing, checksum verification, and scheduling without host MCU intervention. The MLX81113KLW-BBB-000-SP also implements autoaddressing via the bus shunt method, enabling plug-and-play node configuration on standard LIN networks.
Does MLX81113KLW-BBB-000-SP require an external current-setting resistor for LED drive?
No, the MLX81113KLW-BBB-000-SP integrates four programmable high-voltage current sources (LC0–LC3) capable of delivering up to 60 mA each with digital current level control. This eliminates external current-setting resistors or MOSFET drivers. The MLX81113KLW-BBB-000-SP uses internal DACs and feedback loops to maintain precise current accuracy across temperature and supply variations.
What is the function of the VS pin on MLX81113KLW-BBB-000-SP?
The VS pin on MLX81113KLW-BBB-000-SP serves as the supply voltage sense input for the integrated battery monitor. It connects directly to VBat and enables over-voltage (e.g., 28 V jump-start) and under-voltage detection. This signal also feeds the 10-bit ADC for real-time battery health monitoring. The MLX81113KLW-BBB-000-SP uses VS-derived data to trigger safe shutdown or warning flags before critical supply faults occur.
Is MLX81113KLW-BBB-000-SP qualified for automotive use?
Yes, MLX81113KLW-BBB-000-SP is AEC-Q100 Grade 0 qualified (-40 °C to +125 °C) and developed following ISO 26262 principles for ASIL-A systems. It includes watchdog timers with independent clocks, memory CRC checks, and built-in LED diagnostics. The MLX81113KLW-BBB-000-SP is designed for deployment in automotive interior modules such as door trims and center consoles where reliability and safety compliance are mandatory.
Can MLX81113KLW-BBB-000-SP drive white LEDs in addition to RGB?
Yes, MLX81113KLW-BBB-000-SP supports RGB+W configurations via its four independent current sources (LC0–LC3), each configurable up to 60 mA. The fourth channel (e.g., LC3) is commonly assigned to a warm or cool white LED to expand color gamut and improve CRI. The MLX81113KLW-BBB-000-SP's 16-bit PWM resolution enables precise intensity balancing between RGB and W channels for accurate white point tuning.
MLX81113KLW-BBB-000-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tube
- 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:
- 10-DFN (3x3)
MLX81113KLW-BBB-000-SP FAQ
1.How can I place an order for MLX81113KLW-BBB-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX81113KLW-BBB-000-SP 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 MLX81113KLW-BBB-000-SP reliable?
The price and inventory of MLX81113KLW-BBB-000-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX81113KLW-BBB-000-SP is usually 5 days.
3.What payment methods are accepted for MLX81113KLW-BBB-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX81113KLW-BBB-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX81113KLW-BBB-000-SP?
MLX81113KLW-BBB-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX81113KLW-BBB-000-SP 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 MLX81113KLW-BBB-000-SP?
For technical support, including MLX81113KLW-BBB-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX81113KLW-BBB-000-SP requirements.
6.How does Aetrix verify that MLX81113KLW-BBB-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX81113KLW-BBB-000-SP 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 MLX81113KLW-BBB-000-SP meets industry standards.
7.What is the process for return or replacement of MLX81113KLW-BBB-000-SP?
All MLX81113KLW-BBB-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX81113KLW-BBB-000-SP, 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 MLX81113KLW-BBB-000-SP part is unused and in its original packaging.
Return procedure for MLX81113KLW-BBB-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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