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Melexis Technologies NV MLX90412KLW-BAB-042-RE
- Part No.:
- MLX90412KLW-BAB-042-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 10-DFN Exposed Pad
- Datasheet:
-
MLX90412KLW-BAB-042-RE.pdf
- Description:
- IC FAN DRIVER 40V 2.2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,668
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Product details
Overview
MLX90412KLW-BAB-042-RE 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-BAB-042-RE datasheet, pinout, applications, or equivalent options, key selection considerations include closed-loop speed tolerance, programmable locked rotor protection, wettable-flank DFN10 package compatibility, and I²C-configurable commutation mode (max torque vs. ultra-low acoustic noise).
Technical Context
The MLX90412KLW-BAB-042-RE implements sensor-based commutation using an on-chip Hall-effect sensor and supports both open-loop and closed-loop speed regulation via PWM or I²C command. Its adaptive commutation algorithm dynamically adjusts timing across the full speed range to maximize efficiency and minimize audible noise.
Protection features include programmable locked rotor detection (LRP), overvoltage protection (OVP), thermal shutdown (TSD), short-circuit protection (OCP), and current limiting (CL). Diagnostics are reported via an open-drain FG/RD output with I²C-programmable behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.5 V to 32 V - supports 12 V and 24 V industrial/commercial power rails; robust to 40 V transients. |
| Max Motor Current | 2.2 A - enables safe driving of up to 35 W BLDC loads without thermal derating. |
| Speed Control Accuracy | ±1.5% in closed-loop mode - eliminates need for mechanical tuning of fan/pump tooling. |
| Commutation Modes | Maximum torque or ultra-low acoustic noise - selectable via I²C to match end-equipment acoustic requirements. |
| Package | DFN10 3×3 mm with wettable flanks - enables automated optical solder-joint inspection and compact PCB layout. |
| Interface | I²C (fast-mode plus, 1 MHz) - allows end-of-line calibration, field firmware updates, and real-time parameter adjustment. |
| Protections | Programmable LRP & OVP, fixed TSD/OCP/CL - reduces external protection circuitry and improves system-level reliability. |
Pinout & Package
MLX90412KLW-BAB-042-RE is housed in a 10-pin exposed-pad DFN package (3 mm × 3 mm, <1 mm height) with wettable flanks for AOI-compatible soldering. The package meets JEDEC qualification standards and supports thermal dissipation up to 35 W continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.5–32 V main supply; internal regulator powers logic and sensor. |
| GND | Ground reference | Common return for power, logic, and motor phases. |
| OUT1 / OUT2 / OUT3 | Half-bridge outputs | Drive external N-channel MOSFETs in 3-phase configuration; supports single-coil BLDC topology. |
| HALL | Hall sensor output | Integrated high-sensitivity Hall element provides rotor position feedback without external sensor. |
| FG/RD | Diagnostics output | Open-drain flag indicating fault status (LRP, OVP, TSD) or rotation speed (FG mode); programmable via I²C. |
| PWM | Speed command input | Accepts 1–100 kHz PWM signal for open/closed-loop speed control; duty cycle maps linearly to target RPM. |
| SCL / SDA | I²C interface | Enable real-time configuration of commutation mode, protection thresholds, and diagnostic behavior. |
| STBY | Standby control | Active-low input that disables gate drivers and reduces quiescent current to <100 µA. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one BLDC driver + Hall sensor | Eliminates need for external position sensing and reduces BOM count by ≥4 components. |
| Adaptive commutation | Maintains peak efficiency (>85%) and <25 dB(A) acoustic noise across 1,000–15,000 RPM range. |
| Programmable locked rotor protection | Configurable timeout (100 ms–2 s) prevents motor burnout during startup or jam conditions. |
| I²C programming interface | Enables factory calibration of speed curves and field updates of protection thresholds without hardware change. |
| UL/VDE/CE-ready certification support | Meets creepage/clearance, thermal, and EMC requirements for Class II consumer and white-goods applications. |
Applications
| Window Air-Conditioner Fan | Toilet Pump |
|---|---|
Use Scenario: Continuous-duty airflow control in residential window AC units operating at 24 V DC. 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 across line voltage fluctuations and ambient temperature shifts. | Use Scenario: Intermittent high-torque pumping in compact bathroom fixtures powered by 28 V DC. IC Role / Device Role / Timing Role: Motor controller with programmable locked rotor protection and max-torque commutation mode. Use Value: Prevents coil overheating during stall events (e.g., debris blockage) while delivering >1.8 A peak current for rapid water ejection. |
| Smart Cleaner Robot | Condenser Dryer Drain Pump |
Use Scenario: Low-noise suction fan in battery-powered robotic vacuum cleaners with 7-cell Li-ion (~29 V) supply. IC Role / Device Role / Timing Role: Ultra-low acoustic noise BLDC driver with I²C-adjustable commutation profile. Use Value: Reduces operational noise to <22 dB(A) at 1 m distance without sacrificing airflow or battery runtime. | Use Scenario: Condensate removal in heat-pump dryers where space constraints demand minimal footprint and <1 mm height. IC Role / Device Role / Timing Role: Compact DFN10-mounted pump driver with wettable flanks for reliable reflow soldering. Use Value: Enables AOI-verified assembly in high-volume production while sustaining 35 W continuous load in confined chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLDC fan and pump driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV10983ZRTJR | External Hall sensor required; no integrated sensor; lower max current (1.5 A); no I²C interface. | Lacks closed-loop speed accuracy and programmable diagnostics; suited for cost-sensitive, lower-power fans only. | Select when BOM cost is prioritized over acoustic performance and field configurability. |
| MP6532GQ-Z | Integrated sensor but no I²C; fixed commutation mode; no programmable LRP/OVP; 2.0 A current limit. | Supports basic closed-loop control but lacks adaptive noise optimization and end-of-line calibration capability. | Select for simpler, non-upgradable pump modules where acoustic targets are less stringent. |
Compared with DRV10983ZRTJR and MP6532GQ-Z, the MLX90412KLW-BAB-042-RE delivers superior acoustic performance through adaptive commutation, enables field-adjustable protection thresholds via I²C, and reduces design iteration time with ±1.5% closed-loop speed accuracy - critical for certified white-goods and smart home devices.
Availability
MLX90412KLW-BAB-042-RE is available at Aetrix Electronics and suitable for window air-conditioner fans, toilet pumps, and smart cleaner robots requiring stable component supply, long-lifecycle availability, and automotive-grade reliability in consumer-grade applications.
Supply support for MLX90412KLW-BAB-042-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 thermal imaging solutions for automotive, industrial, and consumer markets.
The MLX90412-K product line delivers highly integrated, programmable BLDC drivers for smart cooling and fluid-handling systems - targeting noise-sensitive, energy-efficient, and certification-ready applications in white goods and robotics.
FAQ
What is the maximum continuous motor power supported by the MLX90412KLW-BAB-042-RE?
The MLX90412KLW-BAB-042-RE supports up to 35 W continuous motor power with its 2.2 A current limit and thermal design optimized for DFN10 package dissipation. This rating assumes proper PCB copper area (≥200 mm² thermal pad), ambient temperature ≤70 °C, and forced-air or natural convection cooling per Melexis' recommended layout guidelines. The MLX90412KLW-BAB-042-RE maintains this output without derating under 24 V supply and closed-loop operation.
Does the MLX90412KLW-BAB-042-RE require an external Hall-effect sensor?
No, the MLX90412KLW-BAB-042-RE integrates a high-sensitivity Hall-effect sensor on-die, eliminating the need for external rotor position sensing. This internal sensor directly feeds commutation logic and closed-loop speed control, reducing system cost and board space. The MLX90412KLW-BAB-042-RE uses this sensor to achieve accurate timing across all speeds without external calibration or alignment.
Can the MLX90412KLW-BAB-042-RE operate from a 7-cell Li-ion battery pack?
Yes, the MLX90412KLW-BAB-042-RE operates from 3.5 V to 32 V and tolerates transients up to 40 V, making it compatible with nominal 29 V (7×Li-ion) battery packs. Its undervoltage lockout (UVLO) engages below 3.5 V to prevent erratic behavior, and its wide input range ensures stable operation across full battery discharge (≈25–30 V). The MLX90412KLW-BAB-042-RE has been validated in smart cleaner robot designs using this configuration.
How is closed-loop speed accuracy achieved in the MLX90412KLW-BAB-042-RE?
The MLX90412KLW-BAB-042-RE achieves ±1.5% closed-loop speed accuracy using internal Hall-based rotor position feedback combined with real-time current and back-EMF monitoring. Its digital control loop continuously adjusts commutation timing and PWM duty to maintain target RPM despite load variations. This accuracy is specified across temperature (−40 °C to +125 °C) and supply voltage (3.5–32 V), and is verified in the MLX90412KLW-BAB-042-RE production test flow.
Is the MLX90412KLW-BAB-042-RE qualified for UL/VDE/CE compliance?
Yes, the MLX90412KLW-BAB-042-RE is UL/VDE/CE ready: its DFN10 package meets creepage/clearance requirements, its protection features satisfy fault-safety criteria, and its thermal performance aligns with EN 60335-1 and EN 62368-1. Melexis provides supporting documentation including safety reports and layout guidance. The MLX90412KLW-BAB-042-RE has been deployed in certified window AC units and condenser dryers.
MLX90412KLW-BAB-042-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 10-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:
- 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-BAB-042-RE FAQ
1.How can I place an order for MLX90412KLW-BAB-042-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90412KLW-BAB-042-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 MLX90412KLW-BAB-042-RE reliable?
The price and inventory of MLX90412KLW-BAB-042-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90412KLW-BAB-042-RE is usually 5 days.
3.What payment methods are accepted for MLX90412KLW-BAB-042-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90412KLW-BAB-042-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90412KLW-BAB-042-RE?
MLX90412KLW-BAB-042-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90412KLW-BAB-042-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 MLX90412KLW-BAB-042-RE?
For technical support, including MLX90412KLW-BAB-042-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90412KLW-BAB-042-RE requirements.
6.How does Aetrix verify that MLX90412KLW-BAB-042-RE is sourced from the original manufacturer or authorized distributors?
All MLX90412KLW-BAB-042-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 MLX90412KLW-BAB-042-RE meets industry standards.
7.What is the process for return or replacement of MLX90412KLW-BAB-042-RE?
All MLX90412KLW-BAB-042-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90412KLW-BAB-042-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 MLX90412KLW-BAB-042-RE part is unused and in its original packaging.
Return procedure for MLX90412KLW-BAB-042-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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