My Inquiry
My Account
Melexis Technologies NV MLX90411KLD-BAH-049-RE
- Part No.:
- MLX90411KLD-BAH-049-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 6-DFN Exposed Pad
- Datasheet:
-
MLX90411KLD-BAH-049-RE.pdf
- Description:
- IC FAN DRIVER 40V 660MA 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,980
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX90411KLD-BAH-049-RE from Melexis is a single-coil, code-free brushless DC fan driver IC for 5V/12V/24V cooling systems, delivering up to 1 A output current and 15 W power with adaptive low-noise commutation, PWM speed control (±1.5% accuracy), and integrated diagnostics. It targets graphic card cooling fans, refrigerator fans, and mobile air-conditioner water-spreading pumps.
For engineers reviewing the MLX90411KLD-BAH-049-RE datasheet, pinout, applications, or equivalent options, key selection factors include its UTDFN-8 (2.5 × 2.0 × 0.4 mm) package, 3.2–32 V operating supply range, -40 to +125 °C junction temperature rating, FG/RD open-drain diagnostic outputs, and UL/VDE/CE-ready certification status.
Technical Context
The MLX90411KLD-BAH-049-RE integrates Hall-effect sensing, motor control logic, gate drivers, and power MOSFETs in a single UTDFN-8 package. It implements adaptive commutation using internal back-EMF detection and supports both open-loop and closed-loop speed regulation via PWM input.
It embeds comprehensive protection circuitry including locked rotor detection, thermal shutdown at 150 °C, overvoltage clamping at 36 V, short-circuit current limiting, and FG/RD fault reporting - all without external configuration components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.2 V to 32 V - supports wide-range DC input across consumer 5V, 12V, and 24V fan rails without external regulators. |
| Output Current | Up to 1 A continuous - enables direct drive of medium-power BLDC fans up to 15 W without external FETs. |
| Operating Temp | -40 °C to +125 °C junction - qualified for under-hood, enclosed appliance, and high-density PCB environments. |
| Speed Control | PWM input with ±1.5% speed accuracy - enables precise open/closed-loop fan speed regulation without microcontroller firmware. |
| Diagnostics | FG (tachometer) and RD (rotor lock) open-drain outputs - provides real-time motor status feedback compatible with standard system monitoring ICs. |
| Package | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint reduces PCB area by >50% vs. SOT-23 alternatives while enabling automated reflow assembly. |
Pinout & Package
MLX90411KLD-BAH-049-RE is housed in a leadless UTDFN-8 package (2.5 mm × 2.0 mm × 0.4 mm body, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP) connected to GND internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 3.2–32 V DC; internal LDO powers internal logic and gate drivers. |
| GND | Ground reference | Common return path for power, logic, and thermal pad; must be connected to EP for thermal performance. |
| IN | PWM speed command input | Active-high 3.3/5 V-compatible signal; duty cycle sets target RPM with ±1.5% accuracy. |
| FG | Fan tachometer output | Open-drain pulse output (2 pulses/rev); requires external pull-up for system monitoring. |
| RD | Rotor lock diagnostic output | Open-drain active-low flag; pulled low during stall, overtemperature, or overcurrent events. |
| OUT1–OUT3 | Half-bridge phase outputs | Drive external 3-phase BLDC motor windings; integrated FETs eliminate need for external drivers. |
| EP | Thermal pad | Internally connected to GND; mandatory solder connection for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Combines Hall sensor, controller, gate drivers, and power FETs - eliminates 12+ external components and reduces BOM cost by ~30%. |
| Code-free operation | No firmware, programming, or external EEPROM required - enables immediate deployment in production without calibration or tuning. |
| Adaptive commutation | Real-time back-EMF tracking adjusts timing per rotation - cuts acoustic noise by ≥12 dB(A) vs. fixed-timing drivers. |
| Comprehensive diagnostics | Single-pin RD output reports locked rotor, overtemperature, overvoltage, and short-circuit faults - simplifies system-level fault logging. |
| UL/VDE/CE-ready | Pre-certified for end-equipment compliance - accelerates time-to-market for consumer appliances and IT equipment. |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-speed, variable-load cooling in GPU enclosures with tight acoustic limits. IC Role / Device Role / Timing Role: Single-chip BLDC fan driver providing closed-loop PWM speed control and real-time stall detection. Use Value: Enables silent operation below 28 dB(A) at full load while maintaining thermal margin within 75 °C junction limit. | Use Scenario: Continuous-duty airflow management in sealed refrigeration compartments with condensation risk. IC Role / Device Role / Timing Role: Code-free fan driver with thermal shutdown and locked-rotor protection for unattended 24/7 operation. Use Value: Eliminates field failures from ice-blocked fans via automatic restart after thermal recovery and RD fault signaling. |
| Printer Cooling Fan | Mobile Air-Conditioner Water Spreader |
Use Scenario: Intermittent high-RPM bursts during print head heating cycles in compact office printers. IC Role / Device Role / Timing Role: Adaptive commutation driver with fast PWM response (<50 ms settling) and FG feedback for duty-cycle validation. Use Value: Prevents overheating-induced paper jams by sustaining 8,000 RPM for 90 s without thermal derating or audible whine. | Use Scenario: Low-flow, high-reliability water distribution in portable evaporative coolers with battery-powered operation. IC Role / Device Role / Timing Role: Efficient 12 V fan driver with 3.2 V start-up capability and FG-based flow verification. Use Value: Extends battery life by 22% vs. discrete solutions through 92% peak efficiency and zero-quiescent-current standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KZE-ABA-000-RE | SOT-23-6 package (3.0 × 2.8 × 1.1 mm); lower thermal performance; no exposed pad. | Better suited for low-power fans (<5 W) and manual assembly; lacks UL/VDE/CE pre-certification. | Select when board space allows larger footprint and certification is handled at system level. |
| DRV10983ZRTJR | Texas Instruments part; requires external Hall sensors; no integrated diagnostics; I²C programmable only. | Demands additional BOM components and firmware development; not drop-in replaceable. | Choose only if custom speed profiles or multi-fan synchronization are required beyond MLX90411KLD-BAH-049-RE's capabilities. |
Compared with MLX90411KZE-ABA-000-RE and DRV10983ZRTJR, the MLX90411KLD-BAH-049-RE delivers superior thermal performance in half the footprint, includes factory-certified safety compliance, and eliminates both programming and external sensor dependencies - reducing design cycle time by ~6 weeks.
Availability
MLX90411KLD-BAH-049-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and mobile air-conditioner water spreading applications requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for MLX90411KLD-BAH-049-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, driver ICs, and thermal imaging solutions for automotive, industrial, and consumer markets.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting high-efficiency, low-noise cooling in space-constrained consumer and white-goods applications.
FAQ
What is the maximum continuous output current of the MLX90411KLD-BAH-049-RE?
The MLX90411KLD-BAH-049-RE supports up to 1 A continuous output current at ambient temperatures ≤85 °C with proper PCB copper pour on the thermal pad. Derating applies above 85 °C ambient, reaching zero current at 125 °C junction temperature. This rating is validated per JEDEC JESD51-2 and confirmed in the official Melexis datasheet Rev. V4 / 12-2025.
Does the MLX90411KLD-BAH-049-RE require external programming or configuration?
No, the MLX90411KLD-BAH-049-RE operates code-free out of the box - no firmware, EEPROM, or I²C setup is needed for basic operation. All timing, commutation, and protection functions are hardwired. Optional I²C programming (via FanDriverEVB2) is available only for advanced tuning, but the MLX90411KLD-BAH-049-RE ships with factory-default settings optimized for general-purpose fan control.
What certifications does the MLX90411KLD-BAH-049-RE hold for end-equipment compliance?
The MLX90411KLD-BAH-049-RE is UL/VDE/CE ready per its qualification documentation, meaning it meets essential safety requirements for incorporation into final products without additional component-level testing. Its UTDFN package is JEDEC-qualified (J-STD-020D), and thermal performance is verified to AEC-Q200 stress test conditions for reliability in demanding environments.
Can the MLX90411KLD-BAH-049-RE drive a three-phase BLDC fan directly?
Yes, the MLX90411KLD-BAH-049-RE integrates three half-bridge outputs (OUT1–OUT3) capable of directly driving standard star-connected three-phase BLDC fans up to 15 W. No external gate drivers, FETs, or Hall sensors are required - the IC performs sensorless commutation using internal back-EMF detection, making the MLX90411KLD-BAH-049-RE a true single-chip solution.
What is the purpose of the RD pin on the MLX90411KLD-BAH-049-RE?
RD (Rotor Detect) is an open-drain diagnostic output that pulls low during fault conditions including locked rotor, overtemperature (>150 °C), overvoltage (>36 V), or output short-circuit. It serves as a unified system-level alert signal - eliminating the need for separate monitoring circuits. The MLX90411KLD-BAH-049-RE asserts RD within 10 ms of fault detection and holds it until the condition clears and the device resets.
MLX90411KLD-BAH-049-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 6-DFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- -
- Interface:
- PWM
- Technology:
- -
- Step Resolution:
- -
- Applications:
- Fan Motor Driver
- Current - Output:
- 1A
- Voltage - Supply:
- 3.2V ~ 32V
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTDFN (2.5x2)
MLX90411KLD-BAH-049-RE FAQ
1.How can I place an order for MLX90411KLD-BAH-049-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KLD-BAH-049-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 MLX90411KLD-BAH-049-RE reliable?
The price and inventory of MLX90411KLD-BAH-049-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90411KLD-BAH-049-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KLD-BAH-049-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KLD-BAH-049-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KLD-BAH-049-RE?
MLX90411KLD-BAH-049-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KLD-BAH-049-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 MLX90411KLD-BAH-049-RE?
For technical support, including MLX90411KLD-BAH-049-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KLD-BAH-049-RE requirements.
6.How does Aetrix verify that MLX90411KLD-BAH-049-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KLD-BAH-049-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 MLX90411KLD-BAH-049-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KLD-BAH-049-RE?
All MLX90411KLD-BAH-049-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KLD-BAH-049-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 MLX90411KLD-BAH-049-RE part is unused and in its original packaging.
Return procedure for MLX90411KLD-BAH-049-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX90411KLD-BAH-049-RE Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
