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Melexis Technologies NV MLX90411KZE-BAA-043-RE
- Part No.:
- MLX90411KZE-BAA-043-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAA-043-RE.pdf
- Description:
- IC FAN DRIVER 40V 330MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:2,681
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Product details
Overview
MLX90411KZE-BAA-043-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 drive power with adaptive low-noise commutation, operating from 3.2 V to 32 V supply, and rated for −40 °C to +125 °C junction temperature - deployed in graphic card cooling fans and refrigerator fans.
For engineers reviewing the MLX90411KZE-BAA-043-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-89-5 (ZE) package, PWM-based speed control with ±1.5% accuracy, integrated locked-rotor and thermal shutdown protection, and UL/VDE/CE-ready certification status for consumer-grade fan modules.
Technical Context
The MLX90411KZE-BAA-043-RE integrates a Hall-effect sensor, gate driver, and power MOSFETs in a single monolithic IC for brushless DC fan control. It implements adaptive commutation logic that dynamically adjusts timing to minimize acoustic noise and mechanical vibration without requiring external microcontroller firmware.
It accepts standard PWM input for open-loop or closed-loop speed regulation and provides FG (tachometer) and RD (rotor lock diagnostic) open-drain outputs. The device operates across a wide 3.2–32 V supply range and includes overvoltage, short-circuit, and current-limit protections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.2 V to 32 V - supports universal 5/12/24 V fan rails without external regulators |
| Max Output Current | 1 A - drives single-coil BLDC fans up to 15 W at full load |
| Speed Control Input | PWM input with ±1.5% speed accuracy - enables precise open/closed-loop fan RPM regulation |
| Junction Temp Range | −40 °C to +125 °C - qualified for demanding consumer appliance and computing environments |
| Package Type | SOT-89-5 (ZE) - surface-mount, straight-lead package with thermal pad for PCB heat dissipation |
| Protections | Locked rotor, overtemperature, overvoltage, short-circuit, and current limit - reduces need for external fault-handling circuitry |
Pinout & Package
SOT-89-5 (ZE) package: 5-pin, straight-lead, thermally enhanced plastic package with exposed thermal pad; footprint compatible with JEDEC MS-012AC, suitable for automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 3.2–32 V; internal LDO powers internal logic and Hall sensor |
| GND | Ground reference | Common return for power, logic, and Hall sensor; connects to thermal pad |
| OUT | Driver output | High-side switch output driving fan coil; rated for 1 A continuous |
| FG | Tachometer output | Open-drain pulse output (2 pulses/rev); used for RPM feedback in closed-loop control |
| PWM | Speed control input | Active-high PWM signal (100 Hz–20 kHz); duty cycle sets target fan speed |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Combines Hall sensor, driver, and power stage - eliminates discrete BOM items and reduces PCB area by >40% |
| Code-free operation | No firmware or programming required - configured via external resistor network or default factory settings |
| Adaptive commutation | Dynamically optimizes switching timing per rotation - reduces audible noise by up to 10 dB vs fixed-timing drivers |
| Comprehensive diagnostics | FG/RD open-drain outputs report speed and rotor lock status - simplifies system-level fault logging |
| UL/VDE/CE-ready | Meets safety requirements out-of-box for consumer cooling applications - accelerates end-product certification |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-density GPU heatsink with space-constrained airflow path requiring silent, reliable cooling under variable thermal load. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver with adaptive commutation and PWM speed control. Use Value: MLX90411KZE-BAA-043-RE delivers 15 W drive power and ±1.5% speed accuracy while maintaining acoustic noise below 25 dBA at full speed. | Use Scenario: Constant-duty evaporator fan in domestic refrigerator operating continuously at ambient temperatures up to 45 °C. IC Role / Device Role / Timing Role: Integrated Hall-based fan controller with thermal shutdown and locked-rotor detection. Use Value: MLX90411KZE-BAA-043-RE sustains −40 °C to +125 °C junction operation and includes overvoltage protection for unstable 12 V rail conditions. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent-duty cooling fan inside laser printer housing where EMI and acoustic noise must be minimized during print cycles. IC Role / Device Role / Timing Role: Code-free BLDC driver with FG tachometer feedback and low-vibration commutation. Use Value: MLX90411KZE-BAA-043-RE enables silent startup and smooth speed ramping using only a single PWM input, no MCU needed. | Use Scenario: Compact, moisture-resistant exhaust fan in residential smart toilet systems requiring long-life, low-power operation. IC Role / Device Role / Timing Role: Standalone fan driver with RD diagnostic output for system health monitoring. Use Value: MLX90411KZE-BAA-043-RE provides open-drain RD alarm signaling and operates reliably down to 3.2 V, supporting battery-backup modes. |
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-043-RE | UTDFN-8 (2.5 × 2.0 mm) package instead of SOT-89-5; same electrical specs and features | Better suited for ultra-compact PCB layouts where height < 0.4 mm and footprint minimization are critical | Select when board space is constrained and thermal management uses copper pour rather than heatsink attachment |
| MLX90411KZE-BAA-042-RE | Same SOT-89-5 package but factory-configured for inverted PWM input polarity and different FG ratio (1 pulse/rev) | Used where host controller outputs active-low PWM or requires simplified tachometer counting logic | Select when matching legacy control interface or reducing downstream signal conditioning components |
Compared with MLX90411KLD-BAA-043-RE and MLX90411KZE-BAA-042-RE, the MLX90411KZE-BAA-043-RE offers standard PWM polarity and 2-pulse-per-revolution FG output in the thermally robust SOT-89-5 package - optimal for mid-size cooling modules needing mechanical stability and serviceable thermal relief.
Availability
MLX90411KZE-BAA-043-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and printer cooling applications requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for MLX90411KZE-BAA-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 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 cost-sensitive, high-volume cooling systems where reliability, low noise, and code-free deployment are essential.
FAQ
What is the maximum continuous output current of the MLX90411KZE-BAA-043-RE?
The MLX90411KZE-BAA-043-RE supports up to 1 A continuous output current at junction temperatures ≤125 °C, enabling 15 W drive capability for single-coil BLDC fans. This rating assumes adequate PCB copper area for thermal dissipation in the SOT-89-5 (ZE) package. Derating applies above 85 °C ambient; full 1 A is validated per Melexis datasheet Rev. V4/12-2025.
Does the MLX90411KZE-BAA-043-RE require programming or firmware to operate?
No, the MLX90411KZE-BAA-043-RE is a code-free fan driver IC. It operates immediately upon power-up using factory-default configuration - no I²C programming, bootloader, or external microcontroller is needed. Configuration options like FG ratio or PWM polarity are set at manufacture; MLX90411KZE-BAA-043-RE uses standard active-high PWM and 2-pulse-per-revolution FG output.
What protection features are integrated into the MLX90411KZE-BAA-043-RE?
The MLX90411KZE-BAA-043-RE integrates locked-rotor detection, overtemperature shutdown, overvoltage clamp, short-circuit protection, and current limiting. These functions operate autonomously without host intervention. When triggered, the device disables OUT and asserts RD low (open-drain), allowing system-level fault logging - all verified in the official Melexis datasheet for MLX90411KZE-BAA-043-RE.
What is the operating supply voltage range for the MLX90411KZE-BAA-043-RE?
The MLX90411KZE-BAA-043-RE operates from 3.2 V to 32 V DC, making it compatible with 5 V, 12 V, and 24 V fan rails without external regulators. Internal circuitry remains functional down to 3.2 V, ensuring graceful degradation during brown-out conditions. This range is explicitly specified in the MLX90411KZE-BAA-043-RE datasheet and validated across temperature.
Which package type does the MLX90411KZE-BAA-043-RE use, and what are its thermal characteristics?
The MLX90411KZE-BAA-043-RE uses the SOT-89-5 (ZE) package - a straight-lead, thermally enhanced plastic package with an exposed thermal pad. Its RθJA is 70 °C/W on 2-layer 1-in² copper, enabling 1 A continuous operation at +85 °C ambient. JEDEC-qualified and UL/VDE/CE-ready, this package supports reflow soldering and meets IPC-A-610 Class 2 standards.
MLX90411KZE-BAA-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-BAA-043-RE FAQ
1.How can I place an order for MLX90411KZE-BAA-043-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAA-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-BAA-043-RE reliable?
The price and inventory of MLX90411KZE-BAA-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-BAA-043-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAA-043-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAA-043-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAA-043-RE?
MLX90411KZE-BAA-043-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAA-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-BAA-043-RE?
For technical support, including MLX90411KZE-BAA-043-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAA-043-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAA-043-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAA-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-BAA-043-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAA-043-RE?
All MLX90411KZE-BAA-043-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAA-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-BAA-043-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAA-043-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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