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Melexis Technologies NV MLX90411KLD-BAH-029-RE
- Part No.:
- MLX90411KLD-BAH-029-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 6-DFN Exposed Pad
- Datasheet:
-
MLX90411KLD-BAH-029-RE.pdf
- Description:
- IC FAN DRIVER 20V 960MA 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,129
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Product details
Overview
MLX90411KLD-BAH-029-RE from Melexis is a single-coil, code-free Hall-effect 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, PWM speed control (±1.5% accuracy), and integrated diagnostics - deployed in graphic card cooling fans and refrigerator fans.
For engineers reviewing the MLX90411KLD-BAH-029-RE datasheet, pinout, applications, or equivalent options, key selection factors include operating supply range (3.2–32 V), junction temperature rating (–40 to +125 °C), UTDFN package footprint (2.5 × 2.0 × 0.4 mm), FG/RD open-drain diagnostics, and UL/VDE/CE readiness.
Technical Context
The MLX90411KLD-BAH-029-RE integrates a Hall sensor, motor controller, and power stage in a single UTDFN package, enabling closed-loop or open-loop fan speed regulation via PWM input. It implements adaptive commutation logic to minimize acoustic noise and mechanical vibration without firmware.
It supports standalone operation with no external programming: configuration is fixed per variant (BAH-029 denotes consumer-grade, non-I²C-programmable version), and includes hardware-level protections including locked rotor detection, overvoltage shutdown, short-circuit current limiting, and thermal shutdown at 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1 A continuous - drives single-phase BLDC fans up to 15 W at 24 V. |
| Supply Voltage Range | 3.2 V to 32 V - supports universal 5/12/24 V DC cooling rails without external regulators. |
| Junction Temp Range | –40 °C to +125 °C - qualified for industrial and consumer appliance environments. |
| Speed Control Accuracy | ±1.5 % - enables precise RPM regulation in closed-loop PWM mode. |
| Package Type | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint for space-constrained fan modules. |
| Diagnostics Output | FG/RD open-drain outputs - provides tachometer feedback and fault reporting (e.g., locked rotor). |
| Safety Certifications | UL/VDE/CE ready - simplifies end-product compliance for white goods and computing peripherals. |
Pinout & Package
MLX90411KLD-BAH-029-RE uses the UTDFN-8 (LD) package: 2.5 mm × 2.0 mm × 0.4 mm body, wettable flanks, JEDEC-qualified, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 3.2–32 V DC rail; internal LDO powers logic and Hall sensor. |
| GND | Ground reference | Common return for power, logic, and motor phase current sensing. |
| OUTP | High-side driver output | Drives external N-channel MOSFET gate or connects directly to motor coil (integrated FET version not applicable here). |
| OUTN | Low-side driver output | Complements OUTP for full H-bridge drive of single-coil BLDC fan winding. |
| PWM | Speed command input | Accepts 0–100 % duty cycle PWM signal for open/closed-loop speed control. |
| FG | Fan tachometer output | Open-drain pulse output (1–4 pulses/rev); used for RPM monitoring. |
| RD | Fault diagnostic output | Open-drain active-low alarm indicating locked rotor, overtemp, or overcurrent. |
| NC | No connect | Pin 8 is internally unused and must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one integration | Combines Hall sensor, controller, and dual gate drivers - eliminates discrete BOM items and reduces PCB area by >40 % vs. discrete solutions. |
| Code-free operation | No firmware or I²C programming required - default configuration (BAH-029) enables immediate deployment in production cooling modules. |
| Adaptive commutation | Real-time adjustment of switching timing based on rotor position - reduces audible noise by up to 10 dB(A) vs. fixed-timing drivers. |
| PWM-based speed control | Supports standby, open-loop, and closed-loop modes with ±1.5 % speed accuracy - compatible with standard motherboard fan headers. |
| Integrated protection suite | Hardware-enforced safeguards: locked rotor detection, thermal shutdown (150 °C), overvoltage lockout, short-circuit current limit - prevents field failures. |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: High-density GPU heatsink requiring compact, silent, and thermally robust fan drive under variable load. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver with integrated Hall sensing and adaptive commutation. Use Value: Enables <10 dB(A) acoustic noise at full speed while maintaining 15 W drive capability in <65 mm² PCB area. | Use Scenario: Constant-speed evaporator fan in domestic refrigerators operating continuously at –20 to +45 °C ambient. IC Role / Device Role / Timing Role: Standalone fan controller with locked-rotor protection and thermal shutdown. Use Value: Eliminates need for external microcontroller and reduces system BOM cost by $0.35–$0.50 per unit. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent-duty cooling fan in laser printer power supplies, cycling between standby and full speed. IC Role / Device Role / Timing Role: PWM-controlled fan driver with FG tach feedback and RD fault signaling to main MCU. Use Value: Delivers ±1.5 % speed accuracy across 3.2–32 V supply range, ensuring consistent thermal management during print jobs. | Use Scenario: Compact, low-power exhaust fan in smart bathroom fixtures requiring quiet operation and long life. IC Role / Device Role / Timing Role: Code-free BLDC driver with UL/VDE/CE-ready certification for Class II appliances. Use Value: Supports CE marking without additional isolation components; operates reliably at 12 V with <25 mW quiescent power in standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KZE-ABA-000-RE | SOT23-6 package (straight-lead), 0.8 A max output, no RD output - lacks fault diagnostics pin. | Targeted at cost-sensitive, lower-power (<10 W) applications where board space is less constrained. | Select when diagnostic reporting is unnecessary and SMT reflow compatibility with legacy SOT footprints is required. |
| DRV10983ZRTJR | Texas Instruments part; I²C-configurable, 1.5 A peak, requires external Hall sensors and external FETs. | Used in high-flexibility designs needing programmable transfer curves and multi-fan synchronization. | Choose only if firmware-based tuning and external sensor placement are acceptable trade-offs for higher peak current. |
Compared with MLX90411KLD-BAH-029-RE, the KZE-ABA variant sacrifices diagnostics and power for legacy packaging, while DRV10983ZRTJR adds configurability at the cost of BOM complexity and design effort - making MLX90411KLD-BAH-029-RE optimal for drop-in, certified, low-noise consumer cooling.
Availability
MLX90411KLD-BAH-029-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and printer thermal management requiring stable component supply, UL/VDE/CE compliance, and compact UTDFN packaging.
Supply support for MLX90411KLD-BAH-029-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 magnetic sensing, driver ICs, and automotive-grade mixed-signal solutions, with ISO/TS 16949 and AEC-Q200 qualified manufacturing.
The MLX90411 product line delivers integrated, code-free fan drivers for consumer and industrial cooling systems - designed to replace discrete motor control circuits with certified, low-noise, single-chip alternatives.
FAQ
Is MLX90411KLD-BAH-029-RE pin-compatible with other MLX90411 variants?
No. MLX90411KLD-BAH-029-RE uses the UTDFN-8 (LD) package, while SOT23-6 variants like MLX90411KZE-ABA-000-RE have different pin count, layout, and terminal functions. PCB redesign is required for substitution. The MLX90411KLD-BAH-029-RE pinout includes dedicated FG and RD outputs not present in the 6-pin SOT version.
Does MLX90411KLD-BAH-029-RE support closed-loop speed control?
Yes. MLX90411KLD-BAH-029-RE supports closed-loop speed control using its FG tachometer output to dynamically adjust PWM duty cycle, achieving ±1.5 % speed accuracy across its 3.2–32 V supply range and full temperature range (–40 to +125 °C).
What protection features are implemented in MLX90411KLD-BAH-029-RE?
MLX90411KLD-BAH-029-RE integrates hardware-level protections: locked rotor detection, thermal shutdown at 150 °C, overvoltage lockout, short-circuit current limiting, and open-load diagnostics via RD output. These operate autonomously without firmware intervention.
Can MLX90411KLD-BAH-029-RE be used with 5 V supply?
Yes. MLX90411KLD-BAH-029-RE operates from 3.2 V to 32 V, making it fully compatible with standard 5 V DC rails. At 5 V, it delivers up to ~0.6 A continuous output current (derated from 1 A at higher voltages) while maintaining all protection and control functions.
Is MLX90411KLD-BAH-029-RE certified for UL/VDE/CE compliance?
Yes. MLX90411KLD-BAH-029-RE is UL/VDE/CE ready - its UTDFN package is JEDEC-qualified, and the device meets creepage/clearance and insulation requirements for Class II end equipment, reducing certification effort for final products like refrigerators and printers.
MLX90411KLD-BAH-029-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 6-DFN Exposed Pad
- 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:
- 6-UTDFN (2.5x2)
MLX90411KLD-BAH-029-RE FAQ
1.How can I place an order for MLX90411KLD-BAH-029-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KLD-BAH-029-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 MLX90411KLD-BAH-029-RE reliable?
The price and inventory of MLX90411KLD-BAH-029-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90411KLD-BAH-029-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KLD-BAH-029-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KLD-BAH-029-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KLD-BAH-029-RE?
MLX90411KLD-BAH-029-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KLD-BAH-029-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 MLX90411KLD-BAH-029-RE?
For technical support, including MLX90411KLD-BAH-029-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KLD-BAH-029-RE requirements.
6.How does Aetrix verify that MLX90411KLD-BAH-029-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KLD-BAH-029-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 MLX90411KLD-BAH-029-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KLD-BAH-029-RE?
All MLX90411KLD-BAH-029-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KLD-BAH-029-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 MLX90411KLD-BAH-029-RE part is unused and in its original packaging.
Return procedure for MLX90411KLD-BAH-029-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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