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Melexis Technologies NV MLX90411KZE-BAB-043-RE
- Part No.:
- MLX90411KZE-BAB-043-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAB-043-RE.pdf
- Description:
- IC FAN DRIVER 40V 330MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:2,682
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Product details
Overview
MLX90411KZE-BAB-043-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 MLX90411KZE-BAB-043-RE datasheet, pinout, applications, or equivalent options, key selection factors include its 3.2–32 V operating supply range, -40°C to +125°C junction temperature rating, UTDFN 2.5 × 2.0 × 0.4 mm package, open-drain FG/RD diagnostics, and UL/VDE/CE-ready certification compliance.
Technical Context
The MLX90411KZE-BAB-043-RE integrates Hall-effect sensing, motor control logic, gate drivers, and power MOSFETs in a single UTDFN package, enabling direct connection to 3-phase BLDC fans without external controllers or firmware. Its adaptive commutation algorithm dynamically adjusts timing to minimize acoustic noise and mechanical vibration.
It supports three speed control modes via PWM input: standby, open-loop, and closed-loop (with ±1.5% speed regulation). Built-in protections include locked rotor detection, overtemperature shutdown, overvoltage clamp, short-circuit current limiting, and open-load diagnostics on FG and RD pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.2 V to 32 V - supports universal operation across 5 V, 12 V, and 24 V fan rails without external regulators |
| Output Current | Up to 1 A - drives single-coil BLDC fans requiring ≤15 W mechanical output power |
| Speed Control Accuracy | ±1.5% - enables precise closed-loop RPM regulation using internal tachometer feedback |
| Operating Junction Temp | -40°C to +125°C - qualified for under-hood, enclosed appliance, and high-density PCB environments |
| Package | UTDFN 2.5 × 2.0 × 0.4 mm - ultra-compact footprint with JEDEC-qualified thermal and reliability performance |
| Diagnostics Outputs | Open-drain FG and RD pins - provide real-time fan rotation status and fault reporting (e.g., locked rotor) |
Pinout & Package
MLX90411KZE-BAB-043-RE uses the UTDFN-8 (ZE) package: 2.5 mm × 2.0 mm × 0.4 mm body, wettable flank leads, 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 Hall sensor |
| GND | Ground reference | Common return for power, logic, and motor phases |
| IN | PWM speed command input | Active-high 3.3 V/5 V compatible signal; configures standby, open-loop, or closed-loop mode |
| FG | Fan tachometer output | Open-drain pulse output synchronized to fan rotation (programmable ratio) |
| RD | Fault diagnostic output | Open-drain alarm signal asserted low on locked rotor, overtemp, or overvoltage |
| OUT1–OUT3 | Motor phase outputs | Integrated half-bridge drivers for direct 3-phase BLDC coil connection |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external microcontroller, gate drivers, Hall latches, and discrete FETs - reduces BOM count and PCB area by >40% |
| Code-free configuration | No firmware development or programming required; full functionality enabled at power-up with only IN, VDD, GND, and motor connections |
| Adaptive commutation | Dynamically optimizes switching timing per rotor position to reduce audible noise and mechanical vibration below 25 dB(A) |
| PWM-based speed control | Supports three operational modes (standby, open-loop, closed-loop) with ±1.5% speed regulation accuracy in closed-loop |
| Comprehensive protection suite | Hardware-level responses to locked rotor, overtemperature (>150°C), overvoltage (>36 V), short-circuit, and current limit events |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-speed, space-constrained GPU heatsink cooling in gaming PCs and workstations. IC Role / Device Role / Timing Role: Single-chip BLDC fan driver providing closed-loop RPM control and real-time fault reporting via FG/RD pins. Use Value: Enables silent, thermally responsive cooling with ±1.5% speed accuracy and automatic shutdown on rotor stall - improving system reliability and acoustic performance. | Use Scenario: Continuous-duty evaporator and condenser fan in domestic refrigerators. IC Role / Device Role / Timing Role: Integrated motor controller managing 12 V/24 V BLDC fans with wide-input voltage tolerance and -40°C cold-start capability. Use Value: Delivers stable airflow across ambient temperatures from -20°C to +45°C while meeting UL/VDE/CE safety requirements out-of-box. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent high-airflow cooling of laser printer fuser assemblies during print cycles. IC Role / Device Role / Timing Role: PWM-triggered fan driver with fast startup (<50 ms), adaptive commutation, and open-drain FG feedback for duty-cycle synchronization. Use Value: Reduces thermal stress on fuser rollers through precise, low-vibration airflow - extending consumable life and minimizing audible noise during operation. | Use Scenario: Compact, quiet ventilation fan in smart bidet-integrated toilet systems. IC Role / Device Role / Timing Role: Low-profile UTDFN fan driver powering 5 V BLDC fans with built-in diagnostics for maintenance alerts. Use Value: Supports IPX4-rated enclosures with reliable operation at 125°C junction temperature and automatic locked-rotor detection for predictive service 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-BAB-043-RE | Same die, UTDFN-8 (LD) package - identical electrical specs but different lead geometry (wettable flank vs. straight-lead SOT) | Optimized for AOI-compatible reflow and higher-density layouts where UTDFN footprint is preferred over SOT | Select MLX90411KLD-BAB-043-RE when automated optical inspection or minimal board area is prioritized over through-hole compatibility |
| MLX90411KZE-BAB-042-RE | Different factory-programmed transfer curve: fixed 0–100% linear mapping vs. 0–100% with configurable minimum speed point | Suitable for constant-airflow applications (e.g., refrigerator fans) where minimum speed must be user-defined | Choose MLX90411KZE-BAB-042-RE if programmable low-speed threshold is required; otherwise MLX90411KZE-BAB-043-RE provides default optimized curve |
Compared with MLX90411KZE-BAB-042-RE and MLX90411KLD-BAB-043-RE, the MLX90411KZE-BAB-043-RE offers the standard transfer curve and straight-lead SOT package - balancing ease of prototyping, thermal performance, and drop-in replacement in legacy 5 V/12 V fan designs without layout revision.
Availability
MLX90411KZE-BAB-043-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and printer thermal management requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for MLX90411KZE-BAB-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, motor control, and automotive ICs, with ISO/TS 16949 and IATF 16949 certifications.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting consumer, appliance, and industrial cooling systems where size, noise, and certification readiness are critical.
FAQ
What is the maximum continuous output current supported by the MLX90411KZE-BAB-043-RE?
The MLX90411KZE-BAB-043-RE supports up to 1 A continuous output current, enabling up to 15 W of mechanical power delivery to single-coil BLDC fans. This rating is validated across its full operating temperature range (-40°C to +125°C) and supply voltage window (3.2 V to 32 V), with internal current limiting protecting against transient overload conditions.
Does the MLX90411KZE-BAB-043-RE require external programming or firmware to operate?
No, the MLX90411KZE-BAB-043-RE is a code-free solution: it operates immediately upon power-up with only VDD, GND, PWM input (IN), and motor connections. No external microcontroller, EEPROM, or programming tools are needed - all control logic, commutation sequencing, and diagnostics are implemented in hardware within the MLX90411KZE-BAB-043-RE die.
What protection features are integrated into the MLX90411KZE-BAB-043-RE?
The MLX90411KZE-BAB-043-RE includes hardware-level protections for locked rotor detection, overtemperature shutdown (>150°C junction), overvoltage clamping (>36 V), short-circuit current limiting, and open-load diagnostics on both FG and RD pins. These functions operate autonomously without software intervention and are active during all operational modes of the MLX90411KZE-BAB-043-RE.
Can the MLX90411KZE-BAB-043-RE be used in 5 V, 12 V, and 24 V fan applications?
Yes, the MLX90411KZE-BAB-043-RE operates across a 3.2 V to 32 V supply range, making it compatible with standard 5 V, 12 V, and 24 V BLDC fan rails. Its internal regulation and adaptive drive ensure consistent performance and efficiency across this full range - verified in reference designs for graphic card cooling fans and refrigerator fans using the MLX90411KZE-BAB-043-RE.
What certifications apply to the MLX90411KZE-BAB-043-RE?
The MLX90411KZE-BAB-043-RE is UL/VDE/CE ready and housed in a JEDEC-qualified UTDFN package. These certifications cover electrical safety, insulation integrity, and package reliability - allowing direct use in end products targeting North American, European, and global markets without additional system-level qualification for the MLX90411KZE-BAB-043-RE itself.
MLX90411KZE-BAB-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-BAB-043-RE FAQ
1.How can I place an order for MLX90411KZE-BAB-043-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAB-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-BAB-043-RE reliable?
The price and inventory of MLX90411KZE-BAB-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-BAB-043-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAB-043-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAB-043-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAB-043-RE?
MLX90411KZE-BAB-043-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAB-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-BAB-043-RE?
For technical support, including MLX90411KZE-BAB-043-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAB-043-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAB-043-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAB-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-BAB-043-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAB-043-RE?
All MLX90411KZE-BAB-043-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAB-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-BAB-043-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAB-043-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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