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Melexis Technologies NV MLX90411KZE-BAB-026-RE
- Part No.:
- MLX90411KZE-BAB-026-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAB-026-RE.pdf
- Description:
- IC FAN DRIVER 20V 660MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:3,836
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Product details
Overview
MLX90411KZE-BAB-026-RE from Melexis is a single-coil, code-free 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-026-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-8 (2.5 × 2.0 × 0.4 mm) package, open-drain FG/RD diagnostics, and UL/VDE/CE-ready certification status.
Technical Context
The MLX90411KZE-BAB-026-RE integrates a Hall-effect sensor, gate driver, and power MOSFETs in a single UTDFN-8 package, enabling direct single-coil BLDC motor commutation without external microcontroller firmware. Its adaptive commutation algorithm dynamically adjusts timing based on rotor position feedback 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 - enables direct compatibility with 5 V, 12 V, and 24 V DC power rails 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 cooling fans. |
| Speed Control Accuracy | ±1.5% - ensures precise closed-loop RPM regulation critical for thermal stability in sensitive consumer appliances. |
| Junction Temp Range | -40°C to +125°C - supports operation in enclosed, thermally stressed environments like printer enclosures or mobile AC units. |
| Package Type | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint reduces PCB area by >50% vs. SOT-23 alternatives, ideal for space-constrained designs. |
| Diagnostics Outputs | Open-drain FG and RD pins - provide real-time tachometer feedback and fault signaling (e.g., locked rotor) without external pull-ups. |
Pinout & Package
MLX90411KZE-BAB-026-RE uses a 8-pin UTDFN package (2.5 mm × 2.0 mm × 0.4 mm, wettable flank), JEDEC-qualified, with exposed thermal pad for enhanced thermal dissipation in high-power-density fan modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 3.2–32 V; internal LDO powers logic and Hall sensor; requires local 100 nF ceramic decoupling. |
| GND | Ground reference | Common return for power, logic, and motor phases; connects to thermal pad for heat sinking. |
| OUTP | High-side motor phase output | Drives one terminal of single-coil BLDC motor; integrated N-channel MOSFET with 1 A continuous rating. |
| OUTN | Low-side motor phase output | Drives opposite terminal of single-coil BLDC motor; integrated N-channel MOSFET with 1 A continuous rating. |
| PWM | Speed control input | Active-high TTL/CMOS-compatible signal; configures standby, open-loop, or closed-loop mode per duty cycle. |
| FG | Frequency generator output | Open-drain tachometer signal; pulses per revolution configurable via internal divider; requires external pull-up. |
| RD | Rotor diagnostics output | Open-drain fault indicator; pulls low on locked rotor, overtemperature, or overvoltage events. |
| NC | No connect | Pin 8 is internally unused and must remain unconnected per datasheet; not bonded in die. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Combines Hall sensor, gate driver, and dual N-MOSFETs - eliminates need for external controllers, sense resistors, or discrete drivers, reducing BOM count by ≥7 parts. |
| Code-free operation | No firmware or programming required - motor starts and runs immediately after power-up with default settings, accelerating prototyping and production ramp. |
| Adaptive commutation | Real-time adjustment of commutation timing based on Hall signal edge detection - cuts audible noise by up to 10 dB(A) vs. fixed-timing drivers. |
| PWM-based speed control | Single-input interface supports three operational modes with ±1.5% closed-loop accuracy - simplifies system-level speed regulation without PID tuning. |
| Comprehensive protection suite | Integrated locked rotor detection, thermal shutdown, overvoltage clamping, short-circuit current limit, and open-load diagnostics - prevents field failures in unattended consumer appliances. |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-speed, low-noise airflow generation inside GPU heatsinks under variable thermal load. IC Role / Device Role / Timing Role: Single-chip BLDC motor driver providing closed-loop speed control and real-time rotor diagnostics. Use Value: Enables silent operation at full load (≤28 dB[A]) while maintaining ±1.5% RPM accuracy across 3.2–32 V supply variation. | Use Scenario: Continuous-duty air circulation in sealed refrigeration compartments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Integrated Hall-based fan driver managing startup, speed regulation, and thermal fault response. Use Value: Guarantees reliable operation from -40°C to +125°C junction temperature and survives repeated condensation cycles without latch-up. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent high-airflow cooling during print head heating cycles in compact inkjet/laser printers. IC Role / Device Role / Timing Role: Compact UTDFN-8 fan driver delivering 15 W in <2.5 mm² footprint with integrated diagnostics. Use Value: Reduces PCB area by >50% vs. discrete solutions while providing FG tach feedback and RD fault signaling for predictive maintenance. | Use Scenario: Low-power, always-on ventilation in humid bathroom environments requiring long-term reliability. IC Role / Device Role / Timing Role: Code-free BLDC driver with UL/VDE/CE-ready certification for safety-critical consumer installations. Use Value: Meets mandatory regional safety standards out-of-box and includes overvoltage/short-circuit protection to prevent fire hazard in wet locations. |
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-026-RE | Same die, UTDFN-8 (LD) package - identical electrical specs but different pinout (no NC pin) and thermal pad layout. | Requires PCB redesign due to different land pattern and absence of NC pin; better thermal performance in high-reliability modules. | Select when higher thermal conductivity and JEDEC-qualified UTDFN-8 (LD) footprint are prioritized over pin compatibility. |
| DRV10983ZRTJR | TI 3-phase BLDC driver with integrated FETs; supports up to 1.5 A but requires external Hall sensors and configuration EEPROM. | Needs external sensing and firmware setup; suited for multi-coil motors, not single-coil topology like MLX90411KZE-BAB-026-RE. | Choose only if migrating to 3-phase architecture or requiring programmable transfer curves unavailable in MLX90411KZE-BAB-026-RE. |
Compared with MLX90411KZE-BAB-026-RE, the LD variant offers improved thermal resistance but demands layout changes, while DRV10983ZRTJR adds configurability at the cost of design complexity and external component dependencies - making MLX90411KZE-BAB-026-RE optimal for rapid deployment in single-coil, code-free consumer fan systems.
Availability
MLX90411KZE-BAB-026-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and printer thermal management requiring stable component supply, consistent parametric performance, and certified safety compliance.
Supply support for MLX90411KZE-BAB-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 markets, with core expertise in magnetic sensing and motor control.
The MLX90411 product line delivers fully integrated, Hall-based BLDC fan drivers targeting ultra-compact, low-noise, and safety-certified thermal management in consumer appliances and computing peripherals.
FAQ
What is the maximum continuous output current of the MLX90411KZE-BAB-026-RE?
The MLX90411KZE-BAB-026-RE supports a maximum continuous output current of 1 A, enabling up to 15 W of power delivery to single-coil BLDC fans. This rating is validated over the full -40°C to +125°C junction temperature range and accounts for internal MOSFET RDS(on) and thermal derating in the UTDFN-8 package. The MLX90411KZE-BAB-026-RE maintains this current capability without external current-sense resistors or thermal throttling circuitry.
Does the MLX90411KZE-BAB-026-RE require programming or firmware to operate?
No, the MLX90411KZE-BAB-026-RE operates code-free - it starts driving the motor immediately after power-up using factory-trimmed default parameters. No I²C programming, external microcontroller, or configuration EEPROM is needed. While the MLX90411-D variant supports I²C customization, the MLX90411KZE-BAB-026-RE is optimized for plug-and-play deployment in high-volume consumer fan modules.
What protection features are integrated into the MLX90411KZE-BAB-026-RE?
The MLX90411KZE-BAB-026-RE integrates five hardware-level protections: locked rotor detection, overtemperature shutdown (at +150°C), overvoltage clamping (36 V), short-circuit current limiting, and open-load diagnostics on FG and RD pins. These functions operate autonomously without software intervention and are active during all operational modes - including standby and closed-loop speed control - ensuring robust field reliability for MLX90411KZE-BAB-026-RE in unattended consumer devices.
What certifications apply to the MLX90411KZE-BAB-026-RE?
The MLX90411KZE-BAB-026-RE is UL/VDE/CE ready per its MLX90411-consumer qualification, and its UTDFN package is JEDEC qualified (MSL3). These certifications cover electrical safety, insulation integrity, and moisture sensitivity - enabling direct use in end-products sold in North America, Europe, and Asia without additional system-level retesting. The MLX90411KZE-BAB-026-RE achieves this with no external components required for compliance.
Can the MLX90411KZE-BAB-026-RE drive a 3-phase BLDC motor?
No, the MLX90411KZE-BAB-026-RE is designed exclusively for single-coil (2-wire) BLDC fan motors. Its internal architecture - including dual-N MOSFET half-bridge, single-Hall sensor interface, and adaptive 2-step commutation logic - is optimized for this topology. Driving a 3-phase motor would require three independent half-bridges and three Hall inputs, which the MLX90411KZE-BAB-026-RE does not implement. Use MLX90411KZE-BAB-026-RE only with compatible 2-wire fan loads.
MLX90411KZE-BAB-026-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-026-RE FAQ
1.How can I place an order for MLX90411KZE-BAB-026-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAB-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-BAB-026-RE reliable?
The price and inventory of MLX90411KZE-BAB-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-BAB-026-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAB-026-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAB-026-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAB-026-RE?
MLX90411KZE-BAB-026-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAB-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-BAB-026-RE?
For technical support, including MLX90411KZE-BAB-026-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAB-026-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAB-026-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAB-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-BAB-026-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAB-026-RE?
All MLX90411KZE-BAB-026-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAB-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-BAB-026-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAB-026-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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