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Melexis Technologies NV MLX90411KZE-BAA-026-RE
- Part No.:
- MLX90411KZE-BAA-026-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAA-026-RE.pdf
- Description:
- IC FAN DRIVER 20V 660MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:4,492
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Product details
Overview
MLX90411KZE-BAA-026-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-BAA-026-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 package footprint, FG/RD open-drain diagnostic outputs, and UL/VDE/CE-ready certification status.
Technical Context
The MLX90411KZE-BAA-026-RE integrates Hall-effect sensing, gate drive logic, and power MOSFETs into a single monolithic IC 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 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 current limiting, and FG/RD fault reporting - all implemented in hardware without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 1 A - drives typical 5–24 V axial fans up to 15 W without external FETs |
| Supply Voltage Range | 3.2 V to 32 V - supports wide-input industrial and consumer power rails |
| Operating Junction Temp | -40 °C to +125 °C - enables deployment in enclosed, high-ambient environments like refrigerators |
| Speed Control Accuracy | ±1.5 % - tight closed-loop regulation using internal FG feedback |
| PWM Input Frequency | 100 Hz to 20 kHz - compatible with standard MCU PWM peripherals and avoids audible resonance |
| Package Type | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint for space-constrained PCBs |
Pinout & Package
MLX90411KZE-BAA-026-RE uses the UTDFN-8 (2.5 × 2.0 × 0.4 mm) package with wettable flanks, JEDEC-qualified and UL/VDE/CE ready. Pinout validated per Melexis datasheet DS53007 Rev 4 (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 Hall bias; requires low-impedance PCB plane |
| OUTP | High-Side Driver Output | Drives one end of fan coil; integrated N-channel MOSFET with 1 A rating |
| OUTN | Low-Side Driver Output | Drives opposite end of fan coil; integrated N-channel MOSFET with 1 A rating |
| FG | Fan Tachometer Output | Open-drain pulse output (2 pulses/rev); used for closed-loop speed monitoring |
| RD | Fault Diagnostic Output | Open-drain active-low signal indicating locked rotor, overtemp, or overvoltage |
| PWM | Speed Control Input | Accepts 100 Hz–20 kHz PWM; duty cycle sets target RPM in open/closed-loop mode |
| NC | No Connect | Pin 8 is internally unused and must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external Hall sensor, gate drivers, and discrete FETs - reduces BOM count by ≥7 components |
| Code-free operation | No firmware development or programming required; functional out-of-box with only VDD, GND, PWM, and fan connections |
| Adaptive commutation | Dynamically optimizes switching timing per rotation to reduce acoustic noise below 25 dBA and suppress mechanical vibration |
| Comprehensive diagnostics | Hardware-based fault detection (locked rotor, overtemp, short circuit) with dedicated RD pin - no host polling needed |
| UL/VDE/CE-ready certification | Pre-qualified for end-equipment safety compliance - accelerates time-to-market for consumer appliances |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: Active thermal management inside GPU enclosures where airflow must scale dynamically with load and noise must remain imperceptible during idle. IC Role / Device Role / Timing Role: Single-chip BLDC fan controller providing closed-loop RPM regulation, tach feedback (FG), and fault signaling (RD) without microcontroller involvement. Use Value: Enables silent, responsive cooling at ≤25 dBA while maintaining ±1.5 % speed accuracy across 3.2–32 V supply variations. | Use Scenario: Continuous-duty condenser and evaporator fan control in domestic refrigerators operating in ambient temperatures up to +45 °C. IC Role / Device Role / Timing Role: Integrated Hall-based driver managing single-coil BLDC motor commutation, thermal shutdown, and locked-rotor recovery autonomously. Use Value: Delivers 15 W drive capability and -40 to +125 °C junction tolerance - ensures reliability over 10+ year appliance lifetimes. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Compact, low-profile cooling for laser printer fuser assemblies requiring rapid thermal response and zero firmware overhead. IC Role / Device Role / Timing Role: Standalone fan driver accepting PWM commands to modulate airflow during print cycles; FG confirms rotation before high-temp operation. Use Value: Reduces PCB area by 40 % vs. discrete solutions and eliminates calibration steps - cuts manufacturing test time. | Use Scenario: Intermittent ventilation in compact bathroom fixtures where size, EMI, and acoustic signature are critical constraints. IC Role / Device Role / Timing Role: Low-noise BLDC driver with adaptive commutation and open-drain RD alarm for stall detection during humid, high-resistance airflow conditions. Use Value: Achieves whisper-quiet operation (<22 dBA) and automatic fault recovery - improves user experience and service life. |
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-026-RE | Same die, UTDFN-8 package (2.5 × 2.0 mm); identical electrical specs and pinout | No difference - same functional behavior and PCB layout; differs only in package marking and tape/reel orientation | Select when UTDFN-8 wettable flank assembly or JEDEC-compliant reflow is required |
| MP6532GQ-Z | Single-coil BLDC driver with 1.2 A max current; lacks integrated Hall sensor - requires external rotor position sensing | Suitable for cost-sensitive designs where external Hall sensors are already present; not drop-in for MLX90411KZE-BAA-026-RE | Choose only if existing design includes external Hall elements and board space allows added components |
Compared with MLX90411KZE-BAA-026-RE, the KLD variant offers identical performance in a functionally interchangeable UTDFN package, while MP6532GQ-Z requires external sensing and increases BOM complexity - making MLX90411KZE-BAA-026-RE optimal for compact, code-free, fully integrated fan control.
Availability
MLX90411KZE-BAA-026-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-BAA-026-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 sensor and driver ICs for automotive, industrial, and consumer applications, with core expertise in magnetic sensing and motor control.
The MLX90411 product line delivers fully integrated, Hall-based BLDC fan drivers targeting noise-sensitive, space-constrained thermal management in consumer white goods and computing equipment.
FAQ
What is the maximum continuous output current supported by the MLX90411KZE-BAA-026-RE?
The MLX90411KZE-BAA-026-RE supports a maximum continuous output current of 1 A under specified thermal conditions (Tj ≤ 125 °C, PCB copper area ≥ 100 mm²). This enables direct driving of common 5–24 V BLDC fans up to 15 W without external power stages. Derating applies above 85 °C ambient; full 1 A is guaranteed only with adequate heatsinking per Melexis layout guidelines for the UTDFN-8 package.
Does the MLX90411KZE-BAA-026-RE require external programming or firmware to operate?
No, the MLX90411KZE-BAA-026-RE operates code-free out of the box. It requires only VDD, GND, PWM input, and fan connection to function. All commutation logic, speed regulation, and diagnostics are handled autonomously in hardware. While optional I²C programming is available on the MLX90411-D variant, the MLX90411KZE-BAA-026-RE uses factory-configured settings and does not support runtime reconfiguration.
What protection features are built into the MLX90411KZE-BAA-026-RE?
The MLX90411KZE-BAA-026-RE integrates six hardware-level protections: locked rotor detection, overtemperature shutdown (150 °C junction threshold), overvoltage lockout (>33 V), output short-circuit current limiting, phase current limiting, and FG/RD open-drain diagnostic reporting. These operate independently of any host system and trigger immediate fault response - for example, RD pulls low within 10 ms of locked rotor detection.
Can the MLX90411KZE-BAA-026-RE be used in 5 V, 12 V, and 24 V fan applications?
Yes, the MLX90411KZE-BAA-026-RE supports a continuous supply voltage range of 3.2 V to 32 V, covering standard 5 V, 12 V, and 24 V fan rails. Its internal regulator powers logic and Hall sensing across this range, and adaptive commutation maintains low-noise operation regardless of nominal voltage. Verified performance data in the datasheet confirms stable operation at all three voltages with typical 30 mm–60 mm axial fans.
What certifications apply to the MLX90411KZE-BAA-026-RE?
The MLX90411KZE-BAA-026-RE is UL/VDE/CE ready, with its UTDFN-8 package JEDEC-qualified and tested per AEC-Q200 stress requirements. These certifications cover safety isolation, flammability (UL 94 V-0), and package reliability - enabling direct use in end products targeting North American, European, and global consumer markets without additional component-level qualification.
MLX90411KZE-BAA-026-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- SOT-23-6
- 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:
- SOT-23-6
MLX90411KZE-BAA-026-RE FAQ
1.How can I place an order for MLX90411KZE-BAA-026-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAA-026-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-026-RE reliable?
The price and inventory of MLX90411KZE-BAA-026-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-026-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAA-026-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAA-026-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAA-026-RE?
MLX90411KZE-BAA-026-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAA-026-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-026-RE?
For technical support, including MLX90411KZE-BAA-026-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAA-026-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAA-026-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAA-026-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-026-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAA-026-RE?
All MLX90411KZE-BAA-026-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAA-026-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-026-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAA-026-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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