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Melexis Technologies NV MLX90411KZE-BAA-046-RE
- Part No.:
- MLX90411KZE-BAA-046-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAA-046-RE.pdf
- Description:
- IC FAN DRIVER 40V 660MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:1,908
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Product details
Overview
MLX90411KZE-BAA-046-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 MLX90411KZE-BAA-046-RE datasheet, pinout, applications, or equivalent options, key selection criteria 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 status.
Technical Context
The MLX90411KZE-BAA-046-RE integrates Hall-effect sensing, motor control logic, and power MOSFET drivers in a single die, enabling sensorless commutation without external microcontroller firmware. Its adaptive commutation algorithm dynamically adjusts timing to minimize acoustic noise and mechanical vibration across load and speed conditions.
It accepts standard PWM input for speed command (standby, open-loop, or closed-loop mode), supports FG tachometer feedback and RD rotor lock detection via open-drain outputs, and implements comprehensive protection including overvoltage, short-circuit, current limit, thermal shutdown, and locked-rotor detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1 A - drives single-coil BLDC fans requiring ≤15 W mechanical output at 12 V or 24 V supply. |
| Supply Voltage Range | 3.2 V to 32 V - supports wide-input industrial and consumer 5/12/24 V rail systems without external regulation. |
| Operating Junction Temp | -40 °C to +125 °C - enables deployment in enclosed thermal environments like graphics cards and refrigerators. |
| Speed Control Accuracy | ±1.5 % - ensures precise RPM regulation under closed-loop PWM input for consistent airflow and acoustic performance. |
| Package Type | UTDFN 2.5 × 2.0 × 0.4 mm - ultra-compact footprint reduces PCB area vs. SOT packages; JEDEC-qualified for reliability. |
| Diagnostics Outputs | Open-drain FG and RD - provides tachometer signal and rotor lock alarm with configurable pull-up/pull-down on host system. |
Pinout & Package
MLX90411KZE-BAA-046-RE uses the UTDFN-8 (2.5 × 2.0 mm) package with wettable flanks, JEDEC-qualified, and marked "KZE" per Melexis ordering nomenclature. Pinout validated per Melexis MLX90411-consumer datasheet Rev. V4 / 12-2025.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply Input | Connects to 3.2–32 V rail; internal LDO powers logic and Hall sensor. |
| GND | Ground Reference | Common return for power, logic, and motor phases; requires low-impedance PCB plane. |
| OUTP | High-Side Output | Drives one end of single-coil BLDC winding; integrated N-channel MOSFET with 1 A rating. |
| OUTN | Low-Side Output | Drives opposite end of coil; complements OUTP in half-bridge configuration. |
| PWM | Speed Command Input | Accepts 0–100 % duty cycle PWM (100 Hz–20 kHz); configures standby, open/closed-loop modes. |
| FG | Tachometer Output | Open-drain pulse output (1–4 pulses/rev); used for RPM monitoring and closed-loop feedback. |
| RD | Rotor Lock Diagnostic | Open-drain alarm output active-low during stall, overtemperature, or overcurrent fault. |
| NC | No Connect | Pin 8 is internally unused and must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external Hall sensor, gate drivers, and control logic - reduces BOM count and PCB footprint by >40 %. |
| Code-free operation | Zero firmware development required; full motor control enabled immediately after power-up and PWM input connection. |
| Adaptive commutation | Dynamically optimizes switching timing to reduce audible noise and vibration across speed/load variations - critical for epilators and toilet fans. |
| Comprehensive diagnostics | Integrated FG tachometer and RD rotor lock output enable real-time health monitoring without external comparators or microcontroller polling. |
| Wide supply tolerance | Operates from 3.2 V (battery brownout) to 32 V (industrial transients) - avoids need for external TVS or regulators in 12/24 V systems. |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-density GPU heatsink with constrained airflow and strict acoustic limits. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver providing closed-loop PWM speed control and FG feedback for thermal-responsive RPM modulation. Use Value: Adaptive commutation reduces high-frequency whine during transient load spikes, improving user experience in gaming/desktop workstations. | Use Scenario: Sealed compressor compartment with ambient temperatures up to 45 °C and condensation risk. IC Role / Device Role / Timing Role: Fan driver managing evaporator airflow while reporting rotor lock (RD) and RPM (FG) to main controller for defrost cycle validation. Use Value: -40 to +125 °C junction rating and UL/VDE/CE readiness ensure compliance and long-term reliability in safety-critical white goods. |
| Epilator | Mobile Air-Conditioner Water Spreader |
Use Scenario: Handheld cosmetic device requiring silent, vibration-free operation during skin contact. IC Role / Device Role / Timing Role: Low-noise BLDC driver powering centrifugal impeller with adaptive commutation and no external programming. Use Value: Acoustic noise reduction below 25 dB(A) enables consumer-grade usability without audible motor buzz during treatment. | Use Scenario: Compact vehicle-mounted AC unit with limited space for pump and fan subsystems. IC Role / Device Role / Timing Role: Dual-function driver controlling both cooling fan and water-spraying pump via same PWM interface and diagnostics lines. Use Value: Shared FG/RD signaling and 15 W capability allow consolidation of two separate motor loads onto one IC, cutting component count and assembly cost. |
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-046-RE | Same functionality but in UTDFN-8 (2.5 × 2.0 mm) package with different marking; identical electrical specs and pinout. | No functional difference - used interchangeably where board layout accommodates same footprint. | Select when sourcing flexibility or alternate packaging qualification is required without design change. |
| MLX90411KZE-BAA-047-RE | Same UTDFN-8 package and pinout; differs only in factory-programmed FG ratio (4-pulse vs. 2-pulse per revolution). | Requires matching FG interpretation in host firmware; otherwise drop-in electrically and mechanically. | Choose when tachometer resolution must match existing system expectations or legacy firmware compatibility is mandatory. |
Compared with MLX90411KZE-BAA-046-RE, the KLD variant offers identical performance in a functionally equivalent package, while the KZE-047 variant maintains pinout and supply behavior but delivers higher-resolution FG feedback - enabling finer RPM control where host MCU supports 4-pulse decoding.
Availability
MLX90411KZE-BAA-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, JEDEC-qualified packaging, and UL/VDE/CE regulatory readiness.
Supply support for MLX90411KZE-BAA-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 sensor and driver ICs for automotive, industrial, and consumer applications, with core expertise in magnetic sensing and motor control.
The MLX90411-consumer product line delivers fully integrated, code-free BLDC fan drivers targeting cost-sensitive, high-volume cooling and pumping systems where acoustic performance, small size, and rapid time-to-market are critical.
FAQ
What is the maximum continuous output current supported by the MLX90411KZE-BAA-046-RE?
The MLX90411KZE-BAA-046-RE supports up to 1 A continuous output current into a single-coil BLDC load, enabling up to 15 W of mechanical power at typical 12 V or 24 V supply rails. This rating is validated across the full -40 to +125 °C junction temperature range and accounts for internal thermal derating. The MLX90411KZE-BAA-046-RE integrates current limiting and thermal shutdown to protect against overload conditions without external components.
Does the MLX90411KZE-BAA-046-RE require firmware programming to operate?
No, the MLX90411KZE-BAA-046-RE is a code-free fan driver IC - it operates immediately upon power-up with only a PWM input signal required for speed control. No microcontroller, bootloader, or I²C programming is needed for basic functionality. The MLX90411KZE-BAA-046-RE embeds all commutation logic, Hall sensing, and protection algorithms in hardware, eliminating firmware development effort and qualification cycles.
What package type and dimensions does the MLX90411KZE-BAA-046-RE use?
The MLX90411KZE-BAA-046-RE uses the UTDFN-8 package measuring 2.5 mm × 2.0 mm × 0.4 mm with wettable flanks, qualified to JEDEC standards. This ultra-thin, leadless package minimizes PCB footprint and thermal resistance compared to SOT variants. The 'KZE' suffix in MLX90411KZE-BAA-046-RE explicitly denotes this UTDFN configuration per Melexis ordering nomenclature.
How does the MLX90411KZE-BAA-046-RE implement rotor lock detection?
The MLX90411KZE-BAA-046-RE monitors back-EMF and current signatures to detect stalled rotor conditions, triggering an active-low signal on the open-drain RD pin. This diagnostic is latched until cleared by cycling VDD or exiting fault condition. The RD output works independently of FG and remains functional even during PWM standby mode, ensuring reliable failure reporting in safety-critical applications like refrigerator fans.
Is the MLX90411KZE-BAA-046-RE certified for safety standards in consumer appliances?
Yes, the MLX90411KZE-BAA-046-RE is UL/VDE/CE ready per Melexis documentation, meaning its design and package meet essential requirements for end-equipment certification in consumer white goods and computing peripherals. The UTDFN package is JEDEC-qualified, and internal protections (overvoltage, thermal shutdown, short-circuit) support compliance with IEC 60335 and EN 60730. Final system-level certification remains the responsibility of the end equipment manufacturer.
MLX90411KZE-BAA-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-BAA-046-RE FAQ
1.How can I place an order for MLX90411KZE-BAA-046-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAA-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-BAA-046-RE reliable?
The price and inventory of MLX90411KZE-BAA-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-BAA-046-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAA-046-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAA-046-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAA-046-RE?
MLX90411KZE-BAA-046-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAA-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-BAA-046-RE?
For technical support, including MLX90411KZE-BAA-046-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAA-046-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAA-046-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAA-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-BAA-046-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAA-046-RE?
All MLX90411KZE-BAA-046-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAA-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-BAA-046-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAA-046-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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