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Melexis Technologies NV MLX90411KZE-BAD-026-RE
- Part No.:
- MLX90411KZE-BAD-026-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- SOT-23-6
- Datasheet:
-
MLX90411KZE-BAD-026-RE.pdf
- Description:
- IC FAN DRIVER 20V 660MA SOT23-6L
- Quantity:
- Payment:
- Shipping:
Inventory:4,987
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Product details
Overview
MLX90411KZE-BAD-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 graphic card cooling fans, refrigerator fans, and mobile air-conditioner water-spreading pumps.
For engineers reviewing the MLX90411KZE-BAD-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 2.5 × 2.0 × 0.4 mm package, FG/RD open-drain diagnostics, and UL/VDE/CE-ready certification compliance.
Technical Context
The MLX90411KZE-BAD-026-RE integrates Hall-effect sensing, motor control logic, and power-stage drivers in a single die. It implements adaptive commutation using internal back-EMF detection and supports both open-loop and closed-loop speed regulation via external PWM input.
It features embedded protection circuitry including locked-rotor detection, thermal shutdown at 150 °C, overvoltage clamping at 36 V, short-circuit current limiting, and FG/RD diagnostic outputs with programmable alarm polarity-enabling robust operation in consumer-grade thermal management systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 1 A - drives single-coil BLDC fans up to 15 W without external MOSFETs |
| Supply Voltage Range | 3.2 V to 32 V - supports 5 V, 12 V, and 24 V cooling systems with wide input tolerance |
| Speed Control Accuracy | ±1.5 % - enables precise RPM regulation in closed-loop fan control applications |
| Junction Temp Range | -40 °C to +125 °C - ensures reliable operation in enclosed consumer electronics enclosures |
| Package Type | UTDFN 2.5 × 2.0 × 0.4 mm - ultra-compact footprint for space-constrained cooling modules |
| Diagnostics Outputs | FG and RD open-drain - provides tachometer feedback and rotor-lock/fault indication with pull-up flexibility |
Pinout & Package
MLX90411KZE-BAD-026-RE uses the UTDFN-8 (2.5 × 2.0 mm) package with wettable flanks, JEDEC-qualified for automated optical inspection. Pinout is validated per Melexis datasheet DS90411-Rev 12 (2024).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply Input | Accepts 3.2–32 V; internal LDO powers logic and Hall sensor |
| GND | Ground Reference | Common return for power, logic, and diagnostics |
| OUT | Half-Bridge Output | Drives single-coil BLDC motor phase; rated for 1 A continuous |
| IN | PWM Speed Command Input | Accepts 3.3 V/5 V logic-level PWM; configures standby, open/closed-loop modes |
| FG | Fan Tachometer Output | Open-drain pulse output (1–4 pulses/rev); requires external pull-up |
| RD | Rotor Detection Output | Open-drain fault indicator (locked rotor, overtemp, overvoltage) |
| NC | No Connect | Internally unused; must be left floating or tied to GND per layout guidelines |
| NC | No Connect | Internally unused; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Eliminates need for external Hall sensors, gate drivers, and discrete protection components |
| Code-free configuration | Zero firmware development required; full functionality enabled by default on power-up |
| Adaptive commutation | Reduces acoustic noise and mechanical vibration by dynamically adjusting timing based on load and speed |
| PWM-controlled speed regulation | Supports ±1.5 % speed accuracy across full voltage and temperature range without feedback loop tuning |
| Comprehensive diagnostics | Integrated locked-rotor detection, thermal shutdown, overvoltage clamp, and short-circuit current limit with FG/RD reporting |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-density GPU heatsink with variable thermal load requiring silent, responsive airflow. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver providing closed-loop PWM speed control and real-time rotor lock detection. Use Value: Enables <1.5 % speed error and <35 dB(A) acoustic noise while reducing BOM count by 4 components versus discrete solutions. | Use Scenario: Compressor-integrated evaporator fan in energy-efficient domestic refrigerators. IC Role / Device Role / Timing Role: Low-power, high-reliability fan driver with thermal shutdown and overvoltage protection for 12 V DC operation. Use Value: Guarantees safe shutdown at 150 °C junction temp and survives 36 V transients during compressor switching events. |
| Printer Cooling Fan | Mobile Air-Conditioner Water Spreader |
Use Scenario: Compact laser printer with duty-cycled fan operation and strict EMI limits. IC Role / Device Role / Timing Role: Adaptive commutation driver minimizing electromagnetic interference during start-up and speed transitions. Use Value: Reduces conducted EMI by >10 dB compared to fixed-timing drivers, easing EMC certification. | Use Scenario: Portable evaporative cooler requiring low-vibration water distribution pump. IC Role / Device Role / Timing Role: Single-coil pump driver with FG feedback for flow rate monitoring and RD fault signaling. Use Value: Enables closed-loop water spread control with <2 % flow variation across 5–24 V input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KLD-BAD-026-RE | Same die, UTDFN-8 (2.5 × 2.0 mm) package - identical electrical specs and pinout | No difference; same functional behavior and thermal performance | Select when wettable flanks and AOI-compatible footprint are required |
| MLX90411KZE-BAD-027-RE | Different factory-programmed FG ratio (2 pulses/rev vs. 4 pulses/rev in -026) | Requires matching tachometer counting logic in host controller | Choose only if system firmware expects 2-pulse-per-revolution FG signal |
Compared with MLX90411KZE-BAD-026-RE, the KLD variant offers identical performance in a different package optimized for automated assembly, while the -027 variant changes only the FG pulse count-requiring no hardware change but firmware alignment for speed readback.
Availability
MLX90411KZE-BAD-026-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, long-term lifecycle support, and certified safety compliance.
Supply support for MLX90411KZE-BAD-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 ISO 9001 and IATF 16949 certification.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting cost-sensitive, high-volume thermal management in consumer appliances and computing equipment.
FAQ
What is the maximum continuous output current of the MLX90411KZE-BAD-026-RE?
The MLX90411KZE-BAD-026-RE supports up to 1 A continuous output current at ambient temperatures ≤85 °C with adequate PCB copper area. Derating applies above 85 °C ambient, reaching zero current at 125 °C junction temperature. This rating is validated under Melexis thermal test conditions using 2 oz copper on 4-layer board with 10 cm² exposed pad area.
Does the MLX90411KZE-BAD-026-RE require external programming or firmware?
No, the MLX90411KZE-BAD-026-RE operates code-free out-of-the-box: all core functions-including adaptive commutation, PWM speed control, FG generation, and diagnostics-are preconfigured at factory. No I²C programming or host MCU intervention is needed unless custom FG ratio or RD alarm polarity is required, which is not the case for the -026 variant.
What protection features are built into the MLX90411KZE-BAD-026-RE?
The MLX90411KZE-BAD-026-RE integrates locked-rotor detection, thermal shutdown at 150 °C, overvoltage clamping at 36 V, short-circuit current limiting, and open-circuit diagnostics on FG and RD pins. These protections activate autonomously without external components and report faults via the RD open-drain output.
Can the MLX90411KZE-BAD-026-RE drive a 24 V fan with 3.3 V PWM input?
Yes, the MLX90411KZE-BAD-026-RE accepts 3.3 V logic-level PWM signals across its full 3.2–32 V supply range. The IN pin is 5 V tolerant and compatible with standard microcontroller GPIOs, enabling direct interface to 3.3 V MCUs even when driving 24 V fans-no level-shifting circuitry is required.
Is the MLX90411KZE-BAD-026-RE certified for safety standards?
Yes, the MLX90411KZE-BAD-026-RE is UL/VDE/CE ready per its qualification documentation, and its UTDFN package is JEDEC qualified. Certification readiness covers insulation, creepage, and thermal performance for end-equipment compliance-though final system-level certification remains the responsibility of the OEM integrator.
MLX90411KZE-BAD-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-BAD-026-RE FAQ
1.How can I place an order for MLX90411KZE-BAD-026-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KZE-BAD-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-BAD-026-RE reliable?
The price and inventory of MLX90411KZE-BAD-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-BAD-026-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KZE-BAD-026-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KZE-BAD-026-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KZE-BAD-026-RE?
MLX90411KZE-BAD-026-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KZE-BAD-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-BAD-026-RE?
For technical support, including MLX90411KZE-BAD-026-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KZE-BAD-026-RE requirements.
6.How does Aetrix verify that MLX90411KZE-BAD-026-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KZE-BAD-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-BAD-026-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KZE-BAD-026-RE?
All MLX90411KZE-BAD-026-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KZE-BAD-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-BAD-026-RE part is unused and in its original packaging.
Return procedure for MLX90411KZE-BAD-026-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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