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Home > Products > Integrated Circuits (ICs) > Interface > Specialized

Melexis Technologies NV MLX80104KLW-DAG-000-RE

Name: MLX80104KLW-DAG-000-RE
Brand: Melexis Technologies NV
SKU: MLX80104KLW-DAG-000-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX80104KLW-DAG-000-RE

Manufacturer:: Melexis Technologies NV

Category:: Specialized

Package:: 28-VFQFN Exposed Pad

Datasheet:: MLX80104KLW-DAG-000-RE.pdf

Description:: MLX80104KLW-DAG-000-RE

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Product details

Overview

MLX80104KLW-DAG-000-RE from Melexis is an automotive-grade LIN slave controller IC integrating a LIN 2.x/SAE J2602 transceiver, 16-bit MULAN MCU (16 kB ROM), 10-bit ADC (10 channels), eight PWM outputs (80 Hz–30 kHz), and 18 configurable high-voltage I/Os (7 mA / 26.5 V) for switch matrix control in vehicle door modules and seat controls.

For engineers reviewing the MLX80104KLW-DAG-000-RE datasheet, pinout, applications, or equivalent options, key selection criteria include LIN protocol compliance, integrated diagnostics for switch inputs, sleep-mode current (25 µA), IO voltage tolerance (26.5 V), and QFN 5×5 mm 28-pin packaging for space-constrained automotive nodes.

Technical Context

The MLX80104KLW-DAG-000-RE implements a dual-layer LIN interface: physical layer with slew-rate-controlled driver and high EMI immunity, plus protocol layer supporting frame processing at up to 19.2 kBaud with low CPU interrupt load. Its MULAN core executes firmware from on-chip 16 kB ROM and manages peripheral registers via memory-mapped I/O.

All 18 I/Os (SW0–SW9, IO0–IO7) support ground-shift tolerance, configurable pull-up/down, and full diagnosis-including switch threshold detection, current-source generation, and wake-up capability. The device includes both digital window watchdog and independent analog watchdog for functional safety compliance in ASIL-B–capable systems.

Key Specifications

Parameter	Value and Actual Design Meaning
LIN Compliance	LIN 2.2A and SAE J2602 compliant transceiver + protocol controller; enables drop-in integration into certified automotive LIN networks.
MCU Core	16-bit MULAN CPU with 16 kB ROM (UniROM), 512 B RAM, 192 B EEPROM with ECC; supports field-upgradable firmware without OTP dependency.
I/O Capability	18 high-voltage I/Os (7 mA sink/source, 26.5 V tolerant); all configurable as switch inputs, PWM outputs, ADC inputs, or wake-up sources.
PWM Outputs	Eight 8-bit PWM channels (80 Hz–30 kHz); programmable frequency and duty cycle for LED dimming or motor control in body electronics.
ADC	Ten 10-bit ADC channels with internal reference; supports battery monitoring, temperature sensing, and analog sensor interfacing with ±1 LSB INL.
Power Management	25 µA typical standby current in sleep mode; over-temperature shutdown and 45 V load-dump protection ensure robustness in 12 V automotive systems.
Operating Range	−40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 1; suitable for under-hood and interior module deployment.

Pinout & Package

MLX80104KLW-DAG-000-RE uses a wettable flank QFN-28 package (5 mm × 5 mm, 0.5 mm pitch), optimized for automated optical inspection (AOI) and solder joint reliability in automotive production.

Pin/Terminal	Circuit Role	Design Meaning
VS	Supply Input	Main 5–27 V supply rail; internally regulated to power core and peripherals; includes load-dump protection.
GNDL, GNDD, GNDA	Ground Terminals	Separate grounds for LIN transceiver (GNDL), digital logic (GNDD), and analog/ADC (GNDA); reduce noise coupling in mixed-signal operation.
LIN	LIN Bus Interface	Single-wire bidirectional LIN physical layer I/O; integrates bus driver, receiver, and slew-rate control for EME optimization.
SW0–SW9, IO0–IO7	Configurable I/Os	18 pins supporting switch input detection, PWM output, ADC input, or constant-current sourcing (2 mA via IREF); each individually diagnosable.
IREF	Analog Reference Output	2 mA constant-current source for external bipolar transistor biasing; enables low-voltage load driving without additional regulators.
AWD, TO	Watchdog Signals	AWD = analog watchdog output (open-drain); TO = digital window watchdog timeout signal; both feed external safety monitors or reset logic.

Key Features

Feature	Design Value
Integrated LIN Transceiver + Protocol Stack	Eliminates need for external LIN PHY and software protocol stack; reduces BOM count and firmware development time for switch nodes.
Full I/O Diagnostics	Real-time detection of open-circuit, short-to-battery, short-to-ground, and overcurrent faults on all SW/IO pins-critical for ISO 26262-compliant diagnostics.
Configurable Wake-Up Sources	LIN bus activity, any I/O edge, or ADC threshold crossing can exit sleep mode; enables ultra-low-power always-on monitoring without external wake controllers.
UniROM Firmware Support	Pre-certified, field-upgradable application firmware (e.g., matrix scanning, debouncing, LIN message mapping); accelerates time-to-production for OEM Tier 1s.
Wettable Flank QFN Package	Side-wettable leads enable AOI-compatible solder joint inspection-meeting stringent automotive manufacturing traceability and quality requirements.

Applications

Door Module Switch Interface	Seat Control Panel
Use Scenario: Monitoring mechanical switches (lock/unlock, window up/down, mirror adjust) in vehicle door modules connected via LIN bus to body control unit. IC Role / Device Role / Timing Role: LIN slave node performing switch state acquisition, debouncing, fault diagnosis, and LIN message transmission at 10–20 kBaud. Use Value: Reduces system cost by integrating transceiver, MCU, and high-voltage I/Os-eliminating discrete level shifters, optocouplers, and external watchdogs.	Use Scenario: Controlling seat position memory buttons, heating element activation, and lumbar adjustment switches in front-row automotive seats. IC Role / Device Role / Timing Role: Local switch manager with PWM-driven LED feedback and ADC-based temperature monitoring for heater safety cutoff. Use Value: Enables compact, single-chip seat control with built-in diagnostics-meeting OEM requirements for ASIL-B–level switch monitoring.
Roof Console Switch Bank	Trunk/Liftgate Release Interface
Use Scenario: Managing overhead console switches (sunroof, interior lights, map lights) where space and EMI resilience are critical. IC Role / Device Role / Timing Role: Low-power LIN slave with wake-on-switch capability and integrated analog watchdog for fail-safe operation. Use Value: Achieves <25 µA sleep current while maintaining full diagnostic coverage-extending battery life during vehicle off-state.	Use Scenario: Interfacing mechanical or capacitive release switches on liftgates and trunk lids with LIN communication to BCM. IC Role / Device Role / Timing Role: High-voltage tolerant I/O hub detecting switch closures and transmitting status with CRC-protected LIN frames. Use Value: Withstands 26.5 V transients and ground-shift conditions common in rear-body harnesses-improving field reliability vs. standard GPIO solutions.

Door Module Switch Interface

Seat Control Panel

Use Scenario: Monitoring mechanical switches (lock/unlock, window up/down, mirror adjust) in vehicle door modules connected via LIN bus to body control unit.

IC Role / Device Role / Timing Role: LIN slave node performing switch state acquisition, debouncing, fault diagnosis, and LIN message transmission at 10–20 kBaud.

Use Value: Reduces system cost by integrating transceiver, MCU, and high-voltage I/Os-eliminating discrete level shifters, optocouplers, and external watchdogs.

Use Scenario: Controlling seat position memory buttons, heating element activation, and lumbar adjustment switches in front-row automotive seats.

IC Role / Device Role / Timing Role: Local switch manager with PWM-driven LED feedback and ADC-based temperature monitoring for heater safety cutoff.

Use Value: Enables compact, single-chip seat control with built-in diagnostics-meeting OEM requirements for ASIL-B–level switch monitoring.

Roof Console Switch Bank

Trunk/Liftgate Release Interface

Use Scenario: Managing overhead console switches (sunroof, interior lights, map lights) where space and EMI resilience are critical.

IC Role / Device Role / Timing Role: Low-power LIN slave with wake-on-switch capability and integrated analog watchdog for fail-safe operation.

Use Value: Achieves <25 µA sleep current while maintaining full diagnostic coverage-extending battery life during vehicle off-state.

Use Scenario: Interfacing mechanical or capacitive release switches on liftgates and trunk lids with LIN communication to BCM.

IC Role / Device Role / Timing Role: High-voltage tolerant I/O hub detecting switch closures and transmitting status with CRC-protected LIN frames.

Use Value: Withstands 26.5 V transients and ground-shift conditions common in rear-body harnesses-improving field reliability vs. standard GPIO solutions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LIN slave controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MLX80105KLW-EAA-000-RE	Same pinout and architecture but uses 16 kB OTP instead of ROM; no UniROM firmware preloaded.	Requires customer-developed or third-party firmware; lacks factory-certified switch matrix firmware.	Select when custom application logic is required and ROM flexibility is unnecessary.
Infineon TLE7231EM	Dedicated LIN I/O expander (no embedded MCU); 16-channel high-side switch with LIN 2.1 PHY only.	No ADC, PWM, or programmable logic-requires external microcontroller for decision-making.	Select when only basic switch actuation is needed and MCU resources reside elsewhere in the system.

Compared with MLX80104KLW-DAG-000-RE, the MLX80105KLW-EAA-000-RE offers identical hardware functionality but requires firmware development effort, whereas the TLE7231EM shifts intelligence to a host MCU-increasing system complexity but reducing per-node processing overhead.

Availability

MLX80104KLW-DAG-000-RE is available at Aetrix Electronics and suitable for automotive door modules, seat control units, roof consoles, and trunk release interfaces requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.

Supply support for MLX80104KLW-DAG-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 ASICs, with design centers in Europe and Asia and global automotive qualification expertise.

The MLX80104/5 product line was developed specifically for cost-sensitive, functionally safe LIN slave nodes in body electronics-emphasizing integrated diagnostics, ultra-low sleep current, and ready-to-deploy firmware for switch matrix applications.

FAQ

What LIN protocol versions does the MLX80104KLW-DAG-000-RE support?

The MLX80104KLW-DAG-000-RE supports LIN 2.2A and SAE J2602 specifications, including frame processing, checksum handling, and automatic response timing. It operates at baud rates up to 19.2 kBaud and maintains full backward compatibility with LIN 2.0 and 2.1 networks. The integrated transceiver meets electromagnetic emission and immunity requirements defined in those standards. MLX80104KLW-DAG-000-RE does not support LIN 2.2B or LIN 3.x features such as enhanced error detection or dynamic frame allocation.

Does the MLX80104KLW-DAG-000-RE include factory-programmed firmware?

Yes, the MLX80104KLW-DAG-000-RE includes UniROM-a pre-validated, field-upgradable firmware image stored in its 16 kB ROM. This firmware provides out-of-the-box functionality for switch matrix scanning, debouncing, LIN message mapping, and diagnostics. Unlike the OTP-based MLX80105, the MLX80104KLW-DAG-000-RE requires no initial programming before deployment. Customers can update UniROM via the PTC-04 programmer or Melexis Mini E-Mlx emulator.

What is the maximum voltage rating for the I/O pins on the MLX80104KLW-DAG-000-RE?

The MLX80104KLW-DAG-000-RE I/O pins (SW0–SW9 and IO0–IO7) are rated for continuous operation up to 26.5 V and transient tolerance to 45 V during load dump events. This rating applies across the full −40 °C to +125 °C operating range and enables direct connection to 12 V automotive battery rails without external protection circuitry. Each I/O also supports ground-shift tolerance of ±1 V relative to GNDD, accommodating harness voltage offsets in real vehicle environments.

How many independent PWM outputs does the MLX80104KLW-DAG-000-RE provide?

The MLX80104KLW-DAG-000-RE provides eight independent 8-bit PWM outputs, each configurable with frequency ranging from 80 Hz to 30 kHz and duty cycle resolution of 0.4% (1/256). These outputs can drive LEDs, small solenoids, or fan speed control circuits directly. All eight PWM channels operate concurrently with synchronized or asynchronous phase alignment, and their timing is derived from the internal 12 MHz RC oscillator-eliminating need for external clock sources.

Is the MLX80104KLW-DAG-000-RE pin-compatible with the MLX80105 series?

Yes, the MLX80104KLW-DAG-000-RE is fully pin-compatible with the MLX80105KLW-EAA-000-RE and other QFN-28 variants in the MLX80104/5 family, including identical pin assignment, electrical characteristics, and mechanical footprint. The only functional difference lies in memory type: MLX80104 uses ROM with UniROM firmware, while MLX80105 uses OTP. No PCB layout change is required when migrating between these variants, though firmware and programming workflows differ.

MLX80104KLW-DAG-000-RE Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: -

Package/Case:: 28-VFQFN Exposed Pad

Packaging:: Bulk

Product Status:: Obsolete

Applications:: LIN Controller

Interface:: LIN

Voltage - Supply:: 5V ~ 27V

Supplier Device Package:: 28-QFN (5x5)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount, Wettable Flank

MLX80104KLW-DAG-000-RE FAQ

1.How can I place an order for MLX80104KLW-DAG-000-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX80104KLW-DAG-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 MLX80104KLW-DAG-000-RE reliable?

The price and inventory of MLX80104KLW-DAG-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 MLX80104KLW-DAG-000-RE is usually 5 days.

3.What payment methods are accepted for MLX80104KLW-DAG-000-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX80104KLW-DAG-000-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX80104KLW-DAG-000-RE?

MLX80104KLW-DAG-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX80104KLW-DAG-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 MLX80104KLW-DAG-000-RE?

For technical support, including MLX80104KLW-DAG-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX80104KLW-DAG-000-RE requirements.

6.How does Aetrix verify that MLX80104KLW-DAG-000-RE is sourced from the original manufacturer or authorized distributors?

All MLX80104KLW-DAG-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 MLX80104KLW-DAG-000-RE meets industry standards.

7.What is the process for return or replacement of MLX80104KLW-DAG-000-RE?

All MLX80104KLW-DAG-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX80104KLW-DAG-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 MLX80104KLW-DAG-000-RE part is unused and in its original packaging.

Return procedure for MLX80104KLW-DAG-000-RE:

1.Submit a request within 90 days.

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

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