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Melexis Technologies NV MLX90412KLW-BAA-042-SP
- Part No.:
- MLX90412KLW-BAA-042-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 10-DFN Exposed Pad
- Datasheet:
-
MLX90412KLW-BAA-042-SP.pdf
- Description:
- IC FAN DRIVER 40V 2.2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,544
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Product details
Overview
MLX90412KLW-BAA-042-SP from Melexis is a single-coil brushless DC fan and pump driver IC with integrated high-sensitivity Hall-effect sensor, 2.2 A current limit, closed-loop speed control (±1.5% accuracy), adaptive low-noise commutation, and I²C programmability - designed for smart 12 V/24 V cooling and fluid-handling systems up to 35 W.
For engineers reviewing the MLX90412KLW-BAA-042-SP datasheet, pinout, applications, or equivalent options, key selection considerations include its DFN10 3×3 mm exposed-pad package, programmable locked rotor protection, PWM and I²C control interfaces, and UL/VDE/CE-ready certification for consumer-grade thermal management systems.
Technical Context
The MLX90412KLW-BAA-042-SP integrates a Hall-effect position sensor, gate driver, and motor control logic in a single die. It supports both open-loop and closed-loop speed regulation via PWM or I²C, with adaptive commutation algorithms that dynamically adjust timing to minimize acoustic noise and maximize efficiency across variable load and speed conditions.
Protections include programmable locked rotor detection, overvoltage (OVP), overcurrent (OCP), current limiting (CL), and thermal shutdown (TSD), all monitored and reported through an open-drain FG/RD diagnostic output. The device operates from 3.5 V to 32 V and withstands transients up to 40 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.5 V to 32 V - supports 12 V and 24 V industrial/consumer power rails with 40 V transient robustness |
| Max Motor Current | 2.2 A - enables safe driving of up to 35 W BLDC loads without external current sensing |
| Speed Control Accuracy | ±1.5% in closed-loop mode - eliminates need for mechanical calibration in fan/pump tooling |
| Package | DFN10 3×3 mm with wettable flanks - 9 mm² footprint, <1 mm height, JEDEC-qualified for automated optical inspection |
| Control Interface | PWM input + I²C programming - allows fast prototyping, end-of-line tuning, and dynamic parameter updates |
| Diagnostics Output | FG/RD open-drain pin - configurable for fault reporting (LRP, OVP, TSD, OCP) or tachometer feedback |
Pinout & Package
MLX90412KLW-BAA-042-SP uses a 10-pin DFN package (3 mm × 3 mm, 0.75 mm pitch) with exposed thermal pad. Wettable flanks enable solder joint inspection under automated X-ray or AOI systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 3.5–32 V rail; internal LDO powers logic and sensor |
| GND | Ground reference | Common return for power, logic, and motor phases |
| OUTP | High-side output | Drives upper MOSFET in half-bridge configuration |
| OUTN | Low-side output | Drives lower MOSFET in half-bridge configuration |
| HALL | Hall sensor output | Provides rotor position feedback to internal commutation logic |
| FG/RD | Diagnostic/tachometer output | Open-drain signal for fault reporting or RPM monitoring |
| PWM | Speed command input | Accepts 1–100 kHz PWM for open/closed-loop speed setting |
| SCL / SDA | I²C interface pins | Enable real-time configuration of protections, commutation mode, and startup behavior |
| EN | Enable input | Active-high logic control for standby mode entry/exit |
| EPAD | Thermal pad | Must be soldered to PCB copper pour for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one BLDC driver with integrated Hall sensor | Eliminates need for external position sensing circuitry and reduces BOM count by ≥3 components |
| Adaptive low-noise commutation | Dynamically adjusts switching timing to reduce audible noise across full speed range without sacrificing efficiency |
| Programmable locked rotor protection (LRP) | Configurable timeout and current threshold prevent coil burnout during stall events in pumps/fans |
| I²C programmability | Enables field-updatable parameters including OVP level, TSD threshold, and FG pulse ratio without hardware change |
| UL/VDE/CE-ready certification | Meets safety requirements for Class II consumer appliances without additional system-level isolation design |
Applications
| Window Air-Conditioner Fan | Toilet Pump |
|---|---|
Use Scenario: Continuous-duty airflow control in compact residential AC units operating at 24 V. IC Role / Device Role / Timing Role: Single-coil BLDC driver with closed-loop speed regulation and Hall-based commutation. Use Value: ±1.5% speed accuracy maintains consistent cooling performance while adaptive commutation reduces operational noise below 25 dB(A). | Use Scenario: Intermittent high-torque fluid transfer in smart bathroom fixtures powered by 28 V supply. IC Role / Device Role / Timing Role: Integrated pump driver with programmable LRP and OCP to handle start-up surge and dry-run conditions. Use Value: Prevents motor damage during clog-induced stall and enables silent operation during nighttime use. |
| Smart Cleaner Robot | Condenser Dryer Drain Pump |
Use Scenario: Battery-powered vacuum robot requiring efficient thermal management and low acoustic signature. IC Role / Device Role / Timing Role: Fan driver with I²C-configurable standby mode and PWM speed control for dynamic thermal response. Use Value: Extends Li-ion battery life via precise current limiting and reduces user-perceived noise during cleaning cycles. | Use Scenario: High-reliability drain function in condenser dryers with frequent on/off cycling and moisture exposure. IC Role / Device Role / Timing Role: Pump driver with thermal shutdown (TSD), overvoltage protection (OVP), and FG diagnostics for predictive maintenance. Use Value: Ensures uninterrupted operation across 10,000+ cycles while enabling error logging via FG pulse pattern. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-coil BLDC fan and pump driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV10983ZRTVT | Lacks integrated Hall sensor; requires external rotor position sensing; no I²C interface; fixed OVP threshold | Better suited for cost-sensitive, non-programmable fan modules where layout space permits external sensor placement | Select when system-level Hall sensor integration is already implemented and firmware flexibility is not required |
| MP6532GQ-Z | Higher voltage rating (45 V); no closed-loop speed control; only open-loop PWM mode; no FG/RD diagnostics | Targeted at high-voltage industrial blowers where acoustic noise is secondary to ruggedness and peak power delivery | Select when operating above 32 V or when closed-loop precision and diagnostics are unnecessary |
Compared with DRV10983ZRTVT and MP6532GQ-Z, the MLX90412KLW-BAA-042-SP uniquely combines Hall integration, closed-loop accuracy, I²C configurability, and comprehensive diagnostics in a 3×3 mm DFN - making it optimal for space-constrained, noise-sensitive, and field-upgradable consumer appliances.
Availability
MLX90412KLW-BAA-042-SP is available at Aetrix Electronics and suitable for window air-conditioner fans, smart toilet pumps, and robotic vacuum cleaner thermal management systems requiring stable component supply and long-term production continuity.
Supply support for MLX90412KLW-BAA-042-SP 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, wireless communication, and intelligent driver ICs for automotive and industrial applications.
The MLX90412-K product line delivers highly integrated, programmable BLDC drivers for consumer-grade thermal and fluid-handling systems - emphasizing low-noise operation, small form factor, and rapid customization via I²C.
FAQ
What is the maximum continuous motor current supported by the MLX90412KLW-BAA-042-SP?
The MLX90412KLW-BAA-042-SP supports up to 2.2 A continuous motor current. This rating is validated under typical PCB thermal conditions (2-layer board, 10 cm² copper pour under EPAD) and enables reliable 35 W operation without external current sensing or heatsinking. Derating applies above 85°C ambient temperature per the device's thermal shutdown threshold.
Does the MLX90412KLW-BAA-042-SP require an external Hall-effect sensor?
No, the MLX90412KLW-BAA-042-SP integrates a high-sensitivity Hall-effect sensor on-die. This eliminates the need for discrete Hall latches or sensors, simplifies PCB layout, and ensures precise rotor position detection synchronized with the internal commutation engine - a key differentiator from competing drivers like DRV10983ZRTVT.
Can the MLX90412KLW-BAA-042-SP operate from a 7-cell Li-ion battery pack (~29 V)?
Yes, the MLX90412KLW-BAA-042-SP operates from 3.5 V to 32 V and is robust to 40 V transients, making it fully compatible with 7-cell Li-ion packs (nominal 25.9 V, max 29.4 V). Its wide input range and built-in OVP ensure safe operation across charge/discharge cycles without external voltage clamping.
How is closed-loop speed control implemented in the MLX90412KLW-BAA-042-SP?
The MLX90412KLW-BAA-042-SP implements closed-loop speed control using internal tachometer feedback derived from the Hall sensor signal and FG/RD output pulses. Speed setpoint is adjusted via PWM duty cycle or I²C register writes, and regulation achieves ±1.5% accuracy across temperature and load - reducing mechanical recalibration effort in fan and pump tooling.
Is the MLX90412KLW-BAA-042-SP certified for consumer appliance safety standards?
Yes, the MLX90412KLW-BAA-042-SP is UL/VDE/CE ready. Its JEDEC-qualified DFN10 package and internal protections (OVP, TSD, LRP) meet essential safety requirements for Class II consumer equipment. System-level certification remains the responsibility of the end-product designer, but the MLX90412KLW-BAA-042-SP significantly reduces compliance risk and testing scope.
MLX90412KLW-BAA-042-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 10-DFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- -
- Interface:
- I2C, PWM
- Technology:
- -
- Step Resolution:
- -
- Applications:
- Fan Motor Driver
- Current - Output:
- 2.2A
- Voltage - Supply:
- 3.5V ~ 32V
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 10-DFN (3x3)
MLX90412KLW-BAA-042-SP FAQ
1.How can I place an order for MLX90412KLW-BAA-042-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90412KLW-BAA-042-SP 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 MLX90412KLW-BAA-042-SP reliable?
The price and inventory of MLX90412KLW-BAA-042-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90412KLW-BAA-042-SP is usually 5 days.
3.What payment methods are accepted for MLX90412KLW-BAA-042-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90412KLW-BAA-042-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90412KLW-BAA-042-SP?
MLX90412KLW-BAA-042-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90412KLW-BAA-042-SP 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 MLX90412KLW-BAA-042-SP?
For technical support, including MLX90412KLW-BAA-042-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90412KLW-BAA-042-SP requirements.
6.How does Aetrix verify that MLX90412KLW-BAA-042-SP is sourced from the original manufacturer or authorized distributors?
All MLX90412KLW-BAA-042-SP 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 MLX90412KLW-BAA-042-SP meets industry standards.
7.What is the process for return or replacement of MLX90412KLW-BAA-042-SP?
All MLX90412KLW-BAA-042-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90412KLW-BAA-042-SP, 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 MLX90412KLW-BAA-042-SP part is unused and in its original packaging.
Return procedure for MLX90412KLW-BAA-042-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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