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Melexis Technologies NV MLX90411KZE-BPA-043-RE
- Part No.:
- MLX90411KZE-BPA-043-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BPA-043-RE.pdf
- Description:
- IC FAN DRIVER 40V SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
MLX90411KZE-BPA-043-RE from Melexis is a single-coil, code-free brushless DC fan driver IC for 5V/12V/24V cooling systems, delivering up to 1A output current and 15W 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 MLX90411KZE-BPA-043-RE datasheet, pinout, applications, or equivalent options, key selection factors include its 3.2–32V operating supply range, -40°C to +125°C junction temperature rating, UTDFN 2.5×2.0×0.4 mm package, FG/RD open-drain diagnostics, and UL/VDE/CE-ready certification compliance.
Technical Context
The MLX90411KZE-BPA-043-RE integrates a Hall-effect sensor, gate driver, and power MOSFETs in a single UTDFN package, enabling direct motor phase control without external microcontroller firmware. Its adaptive commutation algorithm dynamically adjusts timing to minimize acoustic noise and mechanical vibration across variable load conditions.
It supports three speed control modes via PWM input: standby, open-loop, and closed-loop (with internal tachometer feedback). Diagnostics include locked rotor detection, overtemperature shutdown, overvoltage protection, short-circuit limiting, and current-limiting with FG/RD open-drain status outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.2 V to 32 V - supports wide-range DC input including 5V, 12V, and 24V fan rails without external regulation |
| Output Current | Up to 1 A - drives single-coil BLDC fans requiring ≤15 W mechanical power |
| Speed Control Accuracy | ±1.5 % - enables precise RPM regulation in closed-loop mode using internal tach feedback |
| Junction Temp Range | -40 °C to +125 °C - ensures reliable operation in enclosed thermal environments like graphics cards and refrigerators |
| Package | UTDFN 2.5 × 2.0 × 0.4 mm - ultra-compact footprint reduces PCB area vs. SOT packages; JEDEC-qualified |
| Certifications | UL/VDE/CE ready - simplifies end-product safety certification for consumer appliances |
Pinout & Package
MLX90411KZE-BPA-043-RE uses the UTDFN-8 (2.5 × 2.0 mm) package with wettable flanks, optimized for automated optical inspection and thermal performance in space-constrained fan modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 3.2–32 V DC rail; internal LDO powers logic and sensor circuitry |
| GND | Ground reference | Common return path for power, logic, and motor phases; requires low-impedance PCB plane |
| OUTP | High-side motor output | Drives one terminal of single-coil BLDC motor; integrated N-channel MOSFET with 1 A rating |
| OUTN | Low-side motor output | Drives opposite motor terminal; complements OUTP in half-bridge configuration |
| FG | Fan tachometer output | Open-drain pulse output (programmable ratio) for RPM monitoring and closed-loop speed control |
| RD | Diagnostic output | Open-drain fault indicator (e.g., locked rotor, overtemp); active-low by default |
| PWM | Speed command input | Accepts 0–100% duty cycle PWM signal for standby, open-loop, or closed-loop speed control |
| VREF | Reference voltage output | Provides stable 1.2 V reference for external sensing or calibration circuits |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external Hall sensor, gate driver, and discrete FETs-reduces BOM count and PCB footprint by >40% |
| Code-free operation | No firmware development or programming required; fully functional upon power-up with standard PWM interface |
| Adaptive commutation | Dynamically optimizes switching timing per rotation to reduce audible noise and mechanical vibration below 25 dB(A) |
| Comprehensive diagnostics | Real-time detection of locked rotor, overtemperature, overvoltage, short-circuit, and current-limit faults with FG/RD reporting |
| Wide supply range | Operates across 3.2–32 V without external regulators-supports legacy 5V, standard 12V, and industrial 24V fan systems |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: Active thermal management inside GPU enclosures where acoustic noise must remain below 28 dB(A) under full load. IC Role / Device Role / Timing Role: Single-chip BLDC fan driver providing closed-loop RPM control via FG feedback and adaptive commutation. Use Value: Enables silent, high-efficiency cooling at 15W without external microcontroller or sensor components. | Use Scenario: Continuous-duty airflow generation in sealed refrigerator compartments with ambient temperatures up to 45°C. IC Role / Device Role / Timing Role: Integrated motor driver with overtemperature shutdown and locked-rotor protection for unattended operation. Use Value: Ensures long-term reliability and safety compliance (UL/VDE/CE) without additional protection circuitry. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent cooling of print-head assemblies during high-speed inkjet operation. IC Role / Device Role / Timing Role: PWM-controlled fan driver supporting standby mode and rapid start-stop cycles. Use Value: Reduces system power consumption during idle periods while maintaining ±1.5% speed accuracy during active cooling. | Use Scenario: Compact, low-profile ventilation in residential smart toilets with strict EMI and noise limits. IC Role / Device Role / Timing Role: Space-optimized UTDFN fan driver delivering quiet operation and diagnostic feedback via RD pin. Use Value: Fits within 3.5 mm height envelope while providing fault reporting for predictive maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KLD-BAA-043-RE | Same core functionality but in UTDFN-8 (LD) package; no leaded option; identical electrical specs | Preferred for fully automated SMT lines requiring wettable flanks and zero lead coplanarity risk | Select when board assembly uses AOI-based solder joint inspection and maximum miniaturization is critical |
| MLX90411KZE-BAA-043-RE | Straight-lead SOT-23-8 package; same pinout and electrical behavior; slightly higher thermal resistance | Better suited for prototyping, manual rework, or cost-sensitive designs where UTDFN reflow process is unavailable | Choose when leveraging existing SOT-23 tooling or requiring easier visual inspection and hand-soldering capability |
Compared with MLX90411KZE-BPA-043-RE, the LD variant offers superior thermal performance and AOI compatibility in ultra-compact layouts, while the BAA SOT version trades package size for assembly flexibility and lower reflow process sensitivity-both retain identical control architecture and diagnostic features.
Availability
MLX90411KZE-BPA-043-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan, and printer cooling applications requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for MLX90411KZE-BPA-043-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 management solutions for automotive and consumer markets.
The MLX90411 product line delivers integrated, code-free BLDC fan drivers targeting compact, low-noise thermal systems in consumer appliances and computing equipment.
FAQ
What is the operating voltage range supported by the MLX90411KZE-BPA-043-RE?
The MLX90411KZE-BPA-043-RE operates from 3.2 V to 32 V DC, covering common fan supply rails including 5 V, 12 V, and 24 V systems without external regulation. This wide input range allows direct integration into diverse consumer and industrial cooling platforms while maintaining full functionality across all voltages.
Does the MLX90411KZE-BPA-043-RE require firmware programming to function?
No, the MLX90411KZE-BPA-043-RE is a code-free solution: it operates immediately upon power-up using only a standard PWM input for speed control. No microcontroller, bootloader, or I²C programming is needed for basic operation-though optional I²C access exists on other variants like the MLX90411-D for advanced tuning.
What protection features does the MLX90411KZE-BPA-043-RE include?
The MLX90411KZE-BPA-043-RE integrates locked rotor detection, overtemperature shutdown, overvoltage protection, short-circuit current limiting, and real-time diagnostics reported via FG and RD open-drain outputs. These protections ensure robust operation in unattended applications such as refrigerator fans and smart toilet ventilation systems.
What package type is used for the MLX90411KZE-BPA-043-RE?
The MLX90411KZE-BPA-043-RE uses the UTDFN-8 package measuring 2.5 mm × 2.0 mm × 0.4 mm with wettable flanks. This JEDEC-qualified package supports high-density PCB layouts and automated optical inspection, distinguishing it from the SOT-23-8 variant offered in other MLX90411 part numbers.
How does the MLX90411KZE-BPA-043-RE achieve low acoustic noise?
The MLX90411KZE-BPA-043-RE achieves low acoustic noise through adaptive commutation-its internal algorithm continuously adjusts motor phase timing based on rotor position and load dynamics. This minimizes torque ripple and mechanical vibration, resulting in whisper-quiet operation below 25 dB(A) in applications like graphic card cooling fans.
MLX90411KZE-BPA-043-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- SOT-23-6
- 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:
- SOT-23-6
MLX90411KZE-BPA-043-RE FAQ
1.How can I place an order for MLX90411KZE-BPA-043-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BPA-043-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 MLX90411KZE-BPA-043-RE reliable?
The price and inventory of MLX90411KZE-BPA-043-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90411KZE-BPA-043-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BPA-043-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BPA-043-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BPA-043-RE?
MLX90411KZE-BPA-043-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BPA-043-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 MLX90411KZE-BPA-043-RE?
For technical support, including MLX90411KZE-BPA-043-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BPA-043-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BPA-043-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BPA-043-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 MLX90411KZE-BPA-043-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BPA-043-RE?
All MLX90411KZE-BPA-043-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BPA-043-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 MLX90411KZE-BPA-043-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BPA-043-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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