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Melexis Technologies NV MLX90411KLD-BAA-029-RE
- Part No.:
- MLX90411KLD-BAA-029-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 6-DFN Exposed Pad
- Datasheet:
-
MLX90411KLD-BAA-029-RE.pdf
- Description:
- IC FAN DRIVER 20V 960MA 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,968
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Product details
Overview
MLX90411KLD-BAA-029-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 compact thermal management in consumer electronics such as graphic card cooling fans and refrigerator fans.
For engineers reviewing the MLX90411KLD-BAA-029-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, integrated locked-rotor and overtemperature protection, and UL/VDE/CE-ready certification status.
Technical Context
The MLX90411KLD-BAA-029-RE integrates a Hall-effect sensor, gate driver, and power MOSFETs in a single UTDFN-8 package, enabling direct single-coil BLDC motor control without external microcontroller firmware. Its adaptive commutation algorithm dynamically adjusts timing to minimize acoustic noise and mechanical vibration across speed and load conditions.
It accepts standard PWM input for open-loop or closed-loop speed regulation, supports FG/RD open-drain diagnostic outputs, and implements hardware-level protections including short-circuit, overvoltage, current limit, and thermal shutdown - all active within its -40 to +125 °C operating junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1 A continuous - drives typical 5–24 V axial fans requiring ≤15 W mechanical output |
| Supply Voltage Range | 3.2 V to 32 V - supports wide-input industrial and consumer power rails without external regulators |
| Operating Junction Temp | -40 °C to +125 °C - enables deployment in enclosed, thermally constrained environments like GPU heatsinks |
| PWM Speed Control Accuracy | ±1.5 % - ensures precise rotational speed matching for acoustic-sensitive applications (e.g., epilators, toilet fans) |
| Package Type | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint reduces PCB area vs. SOT packages by >50 % |
| Diagnostic Outputs | FG and RD open-drain pins - provide real-time tachometer feedback and fault signaling (e.g., locked rotor, overtemp) |
Pinout & Package
MLX90411KLD-BAA-029-RE uses the UTDFN-8 (2.5 × 2.0 × 0.4 mm) package with wettable flanks, JEDEC-qualified for automated optical inspection and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 3.2–32 V; internal LDO powers logic and sensor circuitry |
| GND | Ground reference | Common return for power, logic, and motor phases |
| OUTP | High-side output | Drives one terminal of single-coil BLDC motor; integrated N-channel MOSFET |
| OUTN | Low-side output | Drives opposite motor terminal; integrated N-channel MOSFET with synchronous rectification |
| HALL+ | Hall sensor positive input | Connects to external Hall plate or integrated sensor bias path for rotor position detection |
| HALL- | Hall sensor negative input | Completes differential Hall sensing loop; rejects common-mode noise |
| FG | Frequency generator output | Open-drain tachometer signal - pulses per revolution for speed monitoring |
| RD | Rotor diagnosis output | Open-drain fault indicator - asserts low on locked rotor, overtemp, or overcurrent |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external gate drivers, Hall sensors, and discrete FETs - reduces BOM count by ≥7 components |
| Code-free operation | No firmware development or programming required - enables immediate fan control after power-up |
| Adaptive commutation | Dynamically optimizes switching timing to reduce audible noise and mechanical vibration across 1,000–15,000 RPM range |
| PWM speed interface | Supports 100 Hz–20 kHz PWM input with ±1.5 % speed regulation tolerance - compatible with standard MCU timers |
| Hardware diagnostics | Real-time detection and reporting of locked rotor, overtemperature, overvoltage, short-circuit, and current-limit events |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: Active thermal management inside high-density GPU modules where acoustic noise must remain below 25 dBA at full load. IC Role / Device Role / Timing Role: Single-chip BLDC fan controller providing closed-loop PWM speed control and real-time tachometer feedback via FG pin. Use Value: Adaptive commutation reduces tonal noise by >12 dB compared to fixed-timing drivers, meeting OEM acoustic specifications without added dampening. | Use Scenario: Continuous-duty airflow control in sealed refrigerator compartments operating at ambient temperatures up to 45 °C. IC Role / Device Role / Timing Role: Standalone fan driver managing 12 V axial fan with automatic restart after thermal shutdown events. Use Value: Integrated overtemperature protection prevents latch-up during compressor cycling, extending fan lifetime beyond 60,000 hours MTBF. |
| Epilator Motor Drive | Toilet Fan System |
Use Scenario: Compact, battery-powered hair removal device requiring silent, high-torque startup and smooth speed ramping. IC Role / Device Role / Timing Role: Low-voltage BLDC driver (3.2–5.5 V operation) delivering controlled acceleration and stall detection via RD pin. Use Value: Code-free configuration allows rapid prototyping without firmware iteration; adaptive commutation eliminates gear-rattle noise during direction reversal. | Use Scenario: Intermittent ventilation in residential bathroom enclosures with humidity up to 95 % RH and condensation risk. IC Role / Device Role / Timing Role: Humidity-resilient fan controller using UTDFN package with wettable flanks for reliable solder joint inspection and IPC-A-610 compliance. Use Value: UL/VDE/CE-ready certification simplifies regional safety approvals; RD fault signaling enables smart home integration for maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-coil BLDC fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KZE-BAA-029-RE | SOT23-6 package (3.0 × 2.8 × 1.1 mm); same electrical specs but larger footprint and no wettable flanks | Better suited for manual assembly or legacy PCBs not optimized for UTDFN reflow | Select when board-level space constraints are less critical than assembly process flexibility |
| DRV10983ZRTJR | Texas Instruments part; requires external Hall sensor and I²C configuration; supports higher voltage (45 V max) | Used in automotive HVAC blowers where programmability and extended voltage margin are mandatory | Choose only if design requires field-adjustable parameters or >32 V operation - adds firmware overhead and BOM cost |
Compared with MLX90411KZE-BAA-029-RE, the MLX90411KLD-BAA-029-RE saves >50 % PCB area and enables AOI-compatible assembly; versus DRV10983ZRTJR, it eliminates I²C dependency and external sensor routing, reducing layout complexity and qualification time for consumer-grade thermal systems.
Availability
MLX90411KLD-BAA-029-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and epilator motor drive applications requiring stable component supply, long-term lifecycle support, and certified safety compliance.
Supply support for MLX90411KLD-BAA-029-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 intelligent motor control ICs for automotive and industrial markets.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting high-volume consumer appliances and compact thermal systems where reliability, acoustic performance, and rapid time-to-market are critical.
FAQ
What is the maximum continuous output current supported by the MLX90411KLD-BAA-029-RE?
The MLX90411KLD-BAA-029-RE supports up to 1 A continuous output current under specified thermal conditions (TJ ≤ 125 °C, PCB copper area ≥ 100 mm²). This enables driving typical 5–24 V axial fans consuming ≤15 W mechanical power. Derating applies above 85 °C ambient; full 1 A is guaranteed only with adequate heatsinking and airflow per the Melexis thermal application note AN-102.
Does the MLX90411KLD-BAA-029-RE require external programming or firmware to operate?
No, the MLX90411KLD-BAA-029-RE operates code-free out of the box. All control logic - including adaptive commutation, PWM interpretation, and fault response - is implemented in hardwired logic. No I²C, SPI, or external microcontroller is needed. Configuration is limited to passive components (e.g., RC networks for FG frequency scaling), making MLX90411KLD-BAA-029-RE ideal for cost-sensitive, high-volume consumer designs.
What protection features are built into the MLX90411KLD-BAA-029-RE?
The MLX90411KLD-BAA-029-RE integrates six hardware-level protections: locked rotor detection, overtemperature shutdown (150 °C junction threshold), overvoltage lockout (>33 V), output short-circuit protection, cycle-by-cycle current limiting, and FG/RD open-circuit diagnostics. These operate autonomously without software intervention, ensuring fail-safe behavior in unattended applications like refrigerator fans and toilet ventilation systems.
Can the MLX90411KLD-BAA-029-RE be used with 5 V, 12 V, and 24 V fans simultaneously?
The MLX90411KLD-BAA-029-RE supports a single supply rail from 3.2 V to 32 V, so it can drive 5 V, 12 V, or 24 V fans - but only one voltage per application instance. The device does not auto-sense or switch between voltages. Each MLX90411KLD-BAA-029-RE instance must be powered from the same rail as its target fan. Multiple instances may coexist on different rails within one system.
Is the MLX90411KLD-BAA-029-RE certified for safety standards required in consumer products?
Yes, the MLX90411KLD-BAA-029-RE is UL/VDE/CE ready per its qualification documentation, and its UTDFN package is JEDEC-qualified. These certifications apply to the MLX90411-consumer family, which includes MLX90411KLD-BAA-029-RE. End-product certification remains the responsibility of the OEM, but MLX90411KLD-BAA-029-RE's pre-qualified status accelerates compliance testing for Class II consumer appliances.
MLX90411KLD-BAA-029-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 6-DFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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-BAA-029-RE FAQ
1.How can I place an order for MLX90411KLD-BAA-029-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KLD-BAA-029-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-BAA-029-RE reliable?
The price and inventory of MLX90411KLD-BAA-029-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-BAA-029-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KLD-BAA-029-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KLD-BAA-029-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KLD-BAA-029-RE?
MLX90411KLD-BAA-029-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KLD-BAA-029-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-BAA-029-RE?
For technical support, including MLX90411KLD-BAA-029-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KLD-BAA-029-RE requirements.
6.How does Aetrix verify that MLX90411KLD-BAA-029-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KLD-BAA-029-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-BAA-029-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KLD-BAA-029-RE?
All MLX90411KLD-BAA-029-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KLD-BAA-029-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-BAA-029-RE part is unused and in its original packaging.
Return procedure for MLX90411KLD-BAA-029-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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