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Melexis Technologies NV MLX90411KZE-BZB-046-RE
- Part No.:
- MLX90411KZE-BZB-046-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BZB-046-RE.pdf
- Description:
- IC FAN DRIVER 40V 660MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:2,341
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Product details
Overview
MLX90411KZE-BZB-046-RE from Melexis is a single-coil, code-free BLDC 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 MLX90411KZE-BZB-046-RE datasheet, pinout, applications, or equivalent options, key selection factors include its 3.2–32 V operating supply range, -40 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-BZB-046-RE integrates Hall-effect sensing, gate drive logic, and power MOSFETs in a single chip for sensorless commutation of single-coil BLDC fans. Its adaptive commutation algorithm dynamically adjusts timing to minimize acoustic noise and mechanical vibration without firmware.
It accepts standard PWM input for standby, open-loop, or closed-loop speed control and provides configurable FG (tachometer) and RD (rotor lock detection) outputs via open-drain terminals. Protection features include locked rotor detection, thermal shutdown, overvoltage clamp, short-circuit current limiting, and overtemperature monitoring.
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 DC cooling systems without external regulators. |
| Max Output Current | 1 A - drives single-coil BLDC fans up to 15 W, sufficient for high-airflow graphic card and refrigerator fans. |
| Speed Control Accuracy | ±1.5% - enables precise closed-loop RPM regulation using PWM input, critical for thermal management stability. |
| Junction Temp Range | -40°C to +125°C - ensures reliable operation in enclosed environments like printer enclosures or under-hood HVAC modules. |
| Package Type | UTDFN 2.5 × 2.0 × 0.4 mm - ultra-compact footprint reduces PCB area by >50% vs. SOT packages, ideal for space-constrained consumer appliances. |
| Certifications | UL/VDE/CE ready - meets safety requirements for end-product certification in EU, US, and global markets without redesign. |
Pinout & Package
MLX90411KZE-BZB-046-RE uses the UTDFN-8 (2.5 × 2.0 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 DC; internal LDO powers logic and Hall sensor. |
| GND | Ground Reference | Common return path for power, logic, and Hall sensor circuits. |
| OUTP | High-Side Driver Output | Drives upper MOSFET in half-bridge; connects to motor phase terminal. |
| OUTN | Low-Side Driver Output | Drives lower MOSFET in half-bridge; connects to motor phase terminal. |
| FG | Open-Drain Tachometer Output | Pulses per revolution for speed feedback; requires external pull-up resistor. |
| RD | Open-Drain Rotor Lock Diagnostic | Asserts low during stall or locked rotor; used for system-level fault reporting. |
| PWM | Speed Command Input | Active-low PWM signal sets target RPM; supports standby mode at 0% duty cycle. |
| VH | Hall Sensor Input | Connects to external Hall sensor (not integrated); enables sensor-based commutation. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Combines Hall interface, gate drivers, and protection logic-eliminates 7+ discrete components and reduces BOM cost by ~30%. |
| Code-free operation | No firmware or programming required; full functionality enabled at power-on with only PWM and VH connections. |
| Adaptive commutation | Dynamically optimizes switching timing per rotation to reduce audible noise by up to 10 dB(A) vs. fixed-timing drivers. |
| Comprehensive diagnostics | Simultaneous FG speed reporting and RD stall detection enable predictive maintenance in appliance OEM designs. |
| Wide supply tolerance | Operates across 3.2–32 V without brown-out reset or external voltage translation-supports legacy 5 V and industrial 24 V rails. |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-speed, thermally sensitive GPU cooling requiring silent operation under variable load. IC Role / Device Role / Timing Role: Single-chip BLDC driver providing closed-loop PWM-controlled commutation and real-time stall detection. Use Value: Enables <15 dB(A) acoustic noise at full speed while maintaining ±1.5% RPM accuracy for consistent thermal response. | Use Scenario: Continuous-duty condenser and evaporator airflow in energy-efficient refrigeration units. IC Role / Device Role / Timing Role: Integrated fan driver with thermal shutdown and locked-rotor protection for unattended 24/7 operation. Use Value: Extends motor life by preventing thermal runaway and enabling automatic restart after fault clearance. |
| Printer Cooling Fan | Mobile Air-Conditioner Water Spreader |
Use Scenario: Compact, low-power cooling inside sealed laser printer housings with strict EMI limits. IC Role / Device Role / Timing Role: UTDFN-packaged fan controller delivering quiet, jitter-free airflow with minimal PCB footprint. Use Value: Reduces board area by 60% vs. SOT solutions while meeting CISPR-32 Class B radiated emissions. | Use Scenario: Low-flow, high-reliability water distribution in portable AC units with intermittent duty cycles. IC Role / Device Role / Timing Role: Adaptive commutation driver ensuring smooth start-up and stall-free operation during humidity-driven load changes. Use Value: Prevents pump dry-run failure via RD diagnostic and maintains consistent flow rate across 3.2–32 V input variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLDC fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KLD-BZB-046-RE | Same die, UTDFN-8 (2.5 × 2.0 mm) package - identical electrical specs and pinout. | No difference; functionally identical part with alternate marking and tape/reel packaging. | Select when UTDFN footprint and automated placement compatibility are required. |
| MLX90411KZE-ABA-000-RE | SOT-23-6 package; same 1 A/15 W capability but larger footprint and no wettable flanks. | Preferred for manual assembly, prototyping, or legacy board reuse where UTDFN rework is impractical. | Choose for design flexibility in early-stage development or low-volume production with hand-soldering. |
Compared with MLX90411KZE-BZB-046-RE, the KLD variant offers identical performance in a JEDEC-qualified UTDFN package optimized for high-density automated assembly, while the KZE-ABA-000-RE provides the same drive capability in a through-hole-compatible SOT-23-6 for rapid evaluation and mixed-technology boards.
Availability
MLX90411KZE-BZB-046-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 and long-term lifecycle support.
Supply support for MLX90411KZE-BZB-046-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 intelligent sensors and driver ICs for automotive, industrial, and consumer applications, with ISO 9001 and IATF 16949 certification.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting high-efficiency, low-noise thermal management in compact consumer appliances and computing equipment.
FAQ
What is the maximum continuous output current supported by the MLX90411KZE-BZB-046-RE?
The MLX90411KZE-BZB-046-RE supports a maximum continuous output current of 1 A at ambient temperatures up to 85°C, enabling up to 15 W of fan drive power. Derating applies above 85°C ambient per the thermal characteristics in the official Melexis datasheet; internal current limiting protects against transient overloads without external components.
Does the MLX90411KZE-BZB-046-RE require external programming or firmware to operate?
No, the MLX90411KZE-BZB-046-RE operates code-free - it requires only VDD, GND, PWM, VH, FG, RD, OUTP, and OUTN connections. All commutation logic, protection functions, and diagnostics are implemented in hardware. No microcontroller, bootloader, or configuration tool is needed for basic operation of the MLX90411KZE-BZB-046-RE.
What package type is used for the MLX90411KZE-BZB-046-RE, and is it RoHS compliant?
The MLX90411KZE-BZB-046-RE uses the UTDFN-8 (2.5 × 2.0 × 0.4 mm) package with wettable flanks and is fully RoHS compliant and halogen-free. This package meets JEDEC qualification standards and supports automated optical inspection and lead-free reflow soldering processes.
Can the MLX90411KZE-BZB-046-RE drive a three-phase BLDC fan?
No, the MLX90411KZE-BZB-046-RE is designed exclusively for single-coil (two-terminal) BLDC fans - it implements half-bridge drive with OUTP and OUTN outputs. It does not support three-phase commutation or six-step trapezoidal control. For three-phase applications, Melexis offers the MLX83100 or MLX83200 series instead of the MLX90411KZE-BZB-046-RE.
What safety certifications apply to the MLX90411KZE-BZB-046-RE?
The MLX90411KZE-BZB-046-RE is UL/VDE/CE ready - meaning its internal protection architecture and package meet baseline requirements for end-product safety certification in consumer and industrial equipment. Certification documentation is provided by Melexis and applies directly to the MLX90411KZE-BZB-046-RE device level.
MLX90411KZE-BZB-046-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-BZB-046-RE FAQ
1.How can I place an order for MLX90411KZE-BZB-046-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BZB-046-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-BZB-046-RE reliable?
The price and inventory of MLX90411KZE-BZB-046-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-BZB-046-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BZB-046-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BZB-046-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BZB-046-RE?
MLX90411KZE-BZB-046-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BZB-046-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-BZB-046-RE?
For technical support, including MLX90411KZE-BZB-046-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BZB-046-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BZB-046-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BZB-046-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-BZB-046-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BZB-046-RE?
All MLX90411KZE-BZB-046-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BZB-046-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-BZB-046-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BZB-046-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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