My Inquiry
My Account
Melexis Technologies NV MLX90411KLD-BAC-029-RE
- Part No.:
- MLX90411KLD-BAC-029-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 6-DFN Exposed Pad
- Datasheet:
-
MLX90411KLD-BAC-029-RE.pdf
- Description:
- IC FAN DRIVER 20V 960MA 6UTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,575
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX90411KLD-BAC-029-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 MLX90411KLD-BAC-029-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its UTDFN-8 (2.5 × 2.0 × 0.4 mm) package, 3.2–32 V operating supply range, -40 to +125 °C junction temperature rating, integrated locked-rotor and overtemperature protection, and FG/RD open-drain diagnostic outputs.
Technical Context
The MLX90411KLD-BAC-029-RE implements sensorless BLDC motor control using integrated Hall-effect sensing and adaptive commutation logic to minimize acoustic noise and mechanical vibration. It supports both open-loop and closed-loop speed regulation via PWM input with ±1.5% speed accuracy across its full operating voltage range.
Its diagnostic architecture includes real-time monitoring of rotor lock, overvoltage, short-circuit, current limit, and thermal shutdown, with status reported through dedicated FG (tachometer) and RD (rotor detection) open-drain outputs. The device uses a fixed-function analog/digital mixed-signal architecture-no firmware or external microcontroller required.
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 consumer cooling rails |
| Speed Control Input | PWM - enables standby, open-loop, or closed-loop operation with ±1.5% speed accuracy |
| Junction Temp Range | -40 °C to +125 °C - suitable for enclosed, high-temp environments like graphics cards and refrigerators |
| Package Type | UTDFN-8 (2.5 × 2.0 × 0.4 mm) - ultra-compact footprint for space-constrained PCBs |
| Diagnostics Outputs | FG & RD open-drain - provides tachometer feedback and rotor lock detection without pull-up resistors |
Pinout & Package
MLX90411KLD-BAC-029-RE is housed in a leadless UTDFN-8 package (2.5 mm × 2.0 mm × 0.4 mm height) with wettable flanks, JEDEC-qualified for reflow compatibility and reliability in high-volume consumer assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply Input | Connects to 3.2–32 V rail; internal LDO powers internal circuitry |
| GND | Ground Reference | Common return path for power, logic, and motor phases |
| OUTP | High-Side Output | Drives one end of single-coil BLDC winding; integrates N-channel DMOS |
| OUTN | Low-Side Output | Drives opposite end of single-coil winding; integrates N-channel DMOS |
| PWM | Speed Control Input | Accepts 1–100 kHz PWM signal for duty-cycle-based speed regulation |
| FG | Tachometer Output | Open-drain pulse output (2 pulses/rev); requires external pull-up |
| RD | Rotor Detection Output | Open-drain alarm indicating rotor lock or stall condition |
| VSS | Sense Reference | Internal current sense reference; connects to GND for accurate current limiting |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one BLDC driver | Integrates Hall sensor, gate drivers, power MOSFETs, and protection logic-eliminates 12+ discrete components and reduces BOM cost |
| Code-free operation | No firmware, programming, or configuration tools needed-functional out-of-box with only VDD, GND, PWM, and motor connections |
| Adaptive commutation | Dynamically adjusts timing based on back-EMF to minimize torque ripple, acoustic noise, and vibration across speed/load conditions |
| Comprehensive diagnostics | Real-time detection of locked rotor, overtemperature, overvoltage, short-circuit, and current limit-with separate FG and RD fault reporting |
| UL/VDE/CE-ready certification | Meets safety requirements for end-product compliance in consumer appliances without additional system-level isolation |
Applications
| Graphic Card Cooling Fan | Refrigerator Fan |
|---|---|
Use Scenario: Active thermal management inside GPU enclosures where space, noise, and reliability are critical. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver providing closed-loop PWM speed control and stall detection. Use Value: Enables silent operation at low loads and rapid response to GPU temperature spikes while maintaining <1.5% speed error. | Use Scenario: Continuous-duty airflow in sealed refrigerator compartments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Integrated fan driver with thermal shutdown and locked-rotor protection for unattended 24/7 operation. Use Value: Eliminates need for external current sensing or microcontroller supervision-reduces system cost and improves MTBF. |
| Printer Cooling Fan | Toilet Fan |
Use Scenario: Intermittent cooling of print-head assemblies during high-speed printing cycles. IC Role / Device Role / Timing Role: PWM-controlled BLDC driver with fast startup and precise speed regulation under variable load. Use Value: Maintains consistent airflow despite frequent on/off transitions and prevents overheating-induced print defects. | Use Scenario: Compact, quiet ventilation in residential bathroom fixtures with limited PCB area. IC Role / Device Role / Timing Role: Ultra-small-footprint fan driver supporting standby mode and automatic restart after power interruption. Use Value: UTDFN-8 package fits within 5 × 5 mm board area; integrated diagnostics reduce field failure root-cause analysis time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-coil BLDC fan driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411KZE-BAC-029-RE | SOT23-6 package (3.0 × 2.8 × 1.1 mm); same electrical specs but larger footprint and higher thermal resistance | Better suited for manual assembly or prototyping; less optimal for ultra-dense consumer PCBs | Select when board reflow capability is limited or hand-soldering is required |
| MLX90411KLD-BAA-029-RE | Same UTDFN-8 package; differs in factory-programmed FG ratio (1 pulse/rev vs. 2 pulses/rev in MLX90411KLD-BAC-029-RE) | Requires matching tachometer counting logic in host controller; not interchangeable without firmware update | Select only if system firmware expects 1-pulse-per-revolution tach feedback |
Compared with MLX90411KLD-BAC-029-RE, the SOT23-6 variant trades miniaturization for assembly flexibility, while the BAA version maintains identical packaging but delivers different tachometer resolution-requiring host-side firmware alignment for FG interpretation.
Availability
MLX90411KLD-BAC-029-RE is available at Aetrix Electronics and suitable for graphic card cooling, refrigerator fan control, and printer thermal management requiring stable component supply, long-term lifecycle support, and JEDEC-qualified packaging.
Supply support for MLX90411KLD-BAC-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, infrared thermometry, and intelligent motor control ICs for automotive and consumer markets.
The MLX90411 product line delivers fully integrated, code-free BLDC fan drivers targeting cost-sensitive, high-volume thermal management in consumer white goods and computing peripherals.
FAQ
What is the maximum continuous output power supported by the MLX90411KLD-BAC-029-RE?
The MLX90411KLD-BAC-029-RE supports up to 15 W continuous output power at 1 A drive current and typical 3.2–32 V supply. This rating assumes adequate PCB copper area and ambient temperature ≤85 °C. Derating applies above 85 °C ambient or with insufficient thermal vias-full thermal limits are specified in the official Melexis datasheet for MLX90411KLD-BAC-029-RE.
Does the MLX90411KLD-BAC-029-RE require external programming or configuration before use?
No, the MLX90411KLD-BAC-029-RE operates code-free out of the box. All control logic-including commutation timing, PWM interpretation, and fault response-is hardwired. No I²C programming, bootloader, or external configuration is needed. The MLX90411KLD-BAC-029-RE functions immediately upon applying VDD, GND, PWM, and motor connections.
What protection features are built into the MLX90411KLD-BAC-029-RE?
The MLX90411KLD-BAC-029-RE integrates six hardware-level protections: locked-rotor detection, overtemperature shutdown (-40 to +125 °C junction range), overvoltage lockout, output short-circuit protection, cycle-by-cycle current limiting, and FG/RD diagnostic reporting. These operate autonomously without software intervention and are active during all operating modes of the MLX90411KLD-BAC-029-RE.
Can the MLX90411KLD-BAC-029-RE drive a three-phase BLDC fan?
No, the MLX90411KLD-BAC-029-RE is designed exclusively for single-coil (two-terminal) BLDC fans. It lacks the three half-bridge outputs and phase commutation sequencing logic required for three-phase motors. Attempting to drive a three-phase fan with the MLX90411KLD-BAC-029-RE will result in improper operation or damage. Use only with verified single-coil fan modules.
What is the tachometer (FG) output format of the MLX90411KLD-BAC-029-RE?
The MLX90411KLD-BAC-029-RE FG output is an open-drain signal generating two pulses per motor revolution, compatible with standard 3.3 V or 5 V logic inputs. It requires an external pull-up resistor (typically 4.7 kΩ) to VDD or host logic rail. Pulse width and timing align with Melexis' published timing diagrams in the MLX90411KLD-BAC-029-RE datasheet.
MLX90411KLD-BAC-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-BAC-029-RE FAQ
1.How can I place an order for MLX90411KLD-BAC-029-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90411KLD-BAC-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-BAC-029-RE reliable?
The price and inventory of MLX90411KLD-BAC-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-BAC-029-RE is usually 5 days.
3.What payment methods are accepted for MLX90411KLD-BAC-029-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90411KLD-BAC-029-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90411KLD-BAC-029-RE?
MLX90411KLD-BAC-029-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90411KLD-BAC-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-BAC-029-RE?
For technical support, including MLX90411KLD-BAC-029-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90411KLD-BAC-029-RE requirements.
6.How does Aetrix verify that MLX90411KLD-BAC-029-RE is sourced from the original manufacturer or authorized distributors?
All MLX90411KLD-BAC-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-BAC-029-RE meets industry standards.
7.What is the process for return or replacement of MLX90411KLD-BAC-029-RE?
All MLX90411KLD-BAC-029-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90411KLD-BAC-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-BAC-029-RE part is unused and in its original packaging.
Return procedure for MLX90411KLD-BAC-029-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX90411KLD-BAC-029-RE Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
