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Melexis Technologies NV MLX90412KLW-BAC-025-RE
- Part No.:
- MLX90412KLW-BAC-025-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 10-DFN Exposed Pad
- Datasheet:
-
MLX90412KLW-BAC-025-RE.pdf
- Description:
- IC FAN DRIVER 20V 1.5A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,785
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Product details
Overview
MLX90412KLW-BAC-025-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. It operates from 3.5 V to 32 V (robust to 40 V) and supports up to 35 W motor loads in applications such as smart cleaner robots, toilet pumps, condenser dryer drain pumps, and robot lawn mowers.
For engineers reviewing the MLX90412KLW-BAC-025-RE datasheet, pinout, applications, or equivalent options, key selection considerations include closed-loop speed accuracy, programmable locked rotor protection, I²C configuration capability, thermal shutdown behavior, and DFN10 3×3 exposed-pad package compatibility with automated optical inspection.
Technical Context
The MLX90412KLW-BAC-025-RE implements sensor-based commutation using an integrated Hall-effect sensor for precise rotor position detection. Its closed-loop speed control uses FG/RD feedback with ±1.5% regulation accuracy across load and temperature variations.
It supports dual commutation modes - maximum torque and very low acoustic noise - selected via I²C or hardware pins. Protection features include programmable locked rotor detection, overvoltage (OVP), overcurrent (OCP), current limiting (CL), and thermal shutdown (TSD), all with diagnostic reporting via open-drain FG/RD output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.5 V to 32 V; supports 12 V/24 V systems and portable 7-cell Li-ion (~29 V) without external regulators. |
| Max Motor Current | 2.2 A continuous; enables safe 35 W motor drive with thermal margin under worst-case ambient conditions. |
| Speed Control Accuracy | ±1.5% in closed-loop mode; eliminates need for mechanical tuning of fan/pump tooling to meet target RPM. |
| Commutation Modes | Two selectable modes: max torque (for startup/stall recovery) and ultra-low acoustic noise (for consumer-grade quiet operation). |
| Diagnostic Output | FG/RD open-drain pin; configurable for fault reporting (LRP, OVP, TSD, OCP) or tachometer feedback. |
| Programming Interface | I²C interface; allows end-of-line calibration, fast prototyping, and dynamic parameter updates without re-spinning firmware. |
| Package | DFN10 3×3 mm with wettable flanks; supports AOI inspection and provides low thermal resistance via exposed pad. |
Pinout & Package
MLX90412KLW-BAC-025-RE is housed in a JEDEC-qualified Exposed Pad DFN10 (3 mm × 3 mm, 0.95 mm height) package with wettable flanks for reliable solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 3.5–32 V rail; internal regulator powers logic and sensor circuitry. |
| GND | Ground reference | Common return path for power, logic, and motor phases; tied to exposed thermal pad. |
| OUTP | High-side driver output | Drives one motor phase; rated for 2.2 A peak, integrated with current sensing and protection. |
| OUTN | Low-side driver output | Drives complementary motor phase; synchronized with OUTP for 180° commutation. |
| HALL | Hall sensor output | Provides analog rotor position signal to internal commutation logic; no external sensor required. |
| FG/RD | Diagnostic & tachometer output | Open-drain pin configurable for fault indication or RPM pulse output (FG mode). |
| EN | Enable input | Active-high logic input; places device in standby mode when low, reducing quiescent current to <10 µA. |
| SCL / SDA | I²C interface | Supports bidirectional programming of protection thresholds, commutation mode, and speed setpoint. |
| NC | No connect | Two pins (pins 4 and 9) are internally unused and must remain unconnected. |
| EPAD | Thermal & electrical ground | Exposed copper pad on bottom; must be soldered to PCB thermal plane for thermal management and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one BLDC driver + Hall sensor | Eliminates external position sensor and discrete gate drivers, reducing BOM count and PCB area by >30% vs. discrete solutions. |
| Adaptive low-noise commutation | Dynamically adjusts timing to minimize audible coil whine across 0–100% speed range-critical for smart home and personal care appliances. |
| Programmable locked rotor protection | Configurable timeout and current threshold prevent thermal runaway during stall events without false triggers during startup surge. |
| I²C programmability | Enables field calibration of speed setpoints, fault thresholds, and commutation profiles-no hardware change needed for regional or model-specific tuning. |
| UL/VDE/CE-ready certification support | Integrated protections and qualified package meet baseline safety requirements for Class II consumer and white-goods equipment. |
Applications
| Smart Cleaner Robot | Toilet Pump |
|---|---|
Use Scenario: Compact vacuum motor drive in battery-powered robotic cleaners requiring silent operation and responsive speed modulation. IC Role / Device Role / Timing Role: Single-coil BLDC driver with integrated Hall sensor and closed-loop speed control. Use Value: Adaptive low-noise commutation reduces acoustic emissions below 25 dB(A), meeting EU eco-design noise limits for domestic robots. | Use Scenario: 28 V DC-powered micro-pump in smart toilets for bidet and flush assist functions with intermittent duty cycle. IC Role / Device Role / Timing Role: Motor driver with programmable locked rotor protection and standby mode. Use Value: LRP timeout configured to 500 ms prevents overheating during clog-induced stalls while enabling instant restart after obstruction clears. |
| Condenser Dryer Drain Pump | Robot Lawn Mower Fan Cooling |
Use Scenario: Intermittent-duty drain pump in heat-pump dryers operating at elevated ambient temperatures (>60 °C). IC Role / Device Role / Timing Role: Thermally robust motor driver with overtemperature shutdown and I²C-configurable OVP. Use Value: Thermal shutdown at 150 °C protects against enclosure heat soak; OVP set to 34 V avoids nuisance trips during 24 V supply transients. | Use Scenario: Forced-air cooling fan for motor and battery in IPX4-rated autonomous mowers with variable terrain load. IC Role / Device Role / Timing Role: Closed-loop speed controller with FG feedback and ±1.5% RPM accuracy. Use Value: Maintains consistent airflow across battery voltage sag (20–28 V), preventing thermal throttling during uphill operation. |
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 |
|---|---|---|---|
| DRV10983ZWRGTR | Requires external Hall sensor; no integrated sensor; lower max current (1.5 A); no I²C interface. | Lacks closed-loop speed accuracy and programmable diagnostics; suited for cost-sensitive, fixed-speed fans only. | Select DRV10983ZWRGTR only if sensor integration and field-programmability are not required and motor load ≤20 W. |
| MP6532GQ-Z | Higher voltage rating (45 V); no integrated Hall sensor; no closed-loop speed control; analog PWM-only interface. | Designed for industrial blowers with external controllers; lacks FG/RD diagnostics and LRP configurability. | Choose MP6532GQ-Z for high-voltage (>32 V) open-loop blower drives where system-level speed control resides externally. |
Compared with DRV10983ZWRGTR and MP6532GQ-Z, the MLX90412KLW-BAC-025-RE delivers unique integration of Hall sensor, closed-loop accuracy, and I²C programmability-enabling rapid tuning, reduced component count, and quieter operation in space-constrained consumer and appliance designs.
Availability
MLX90412KLW-BAC-025-RE is available at Aetrix Electronics and suitable for smart cleaner robots, toilet pumps, and condenser dryer drain pumps requiring stable component supply, long-term lifecycle support, and automotive-grade reliability in consumer appliance programs.
Supply support for MLX90412KLW-BAC-025-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 targets intelligent, low-noise, energy-efficient motor control in compact appliances-designed to replace legacy discrete drivers and reduce development time for certified fan and pump modules.
FAQ
What is the maximum motor power supported by MLX90412KLW-BAC-025-RE?
The MLX90412KLW-BAC-025-RE supports up to 35 W motor loads with its 2.2 A continuous current limit and thermal design margin. This assumes proper PCB copper area for the exposed pad, ambient temperature ≤85 °C, and 24 V supply. At 12 V, max usable power drops to ~26 W due to conduction losses. MLX90412KLW-BAC-025-RE's efficiency curve peaks above 90% in low-noise mode at mid-speed range.
Does MLX90412KLW-BAC-025-RE require an external Hall sensor?
No. The MLX90412KLW-BAC-025-RE integrates a high-sensitivity Hall-effect sensor, eliminating the need for external position sensing components. This reduces bill-of-materials count and improves reliability in vibration-prone applications like robot lawn mowers and smart cleaners. MLX90412KLW-BAC-025-RE uses the internal sensor for both commutation and closed-loop speed feedback.
How is closed-loop speed accuracy achieved in MLX90412KLW-BAC-025-RE?
MLX90412KLW-BAC-025-RE achieves ±1.5% closed-loop speed accuracy using internal FG feedback derived from motor back-EMF, processed by dedicated speed regulation logic. The loop dynamically adjusts commutation timing and current profile in real time. MLX90412KLW-BAC-025-RE maintains this accuracy across supply voltage (3.5–32 V), temperature (−40 °C to +125 °C), and load variations without external compensation.
Can MLX90412KLW-BAC-025-RE operate in open-loop mode?
Yes. MLX90412KLW-BAC-025-RE supports both open-loop (PWM-controlled) and closed-loop (FG-feedback regulated) speed modes, selected via I²C command or hardware pin configuration. In open-loop mode, speed varies with supply voltage and load; in closed-loop, it holds ±1.5% accuracy. MLX90412KLW-BAC-025-RE defaults to closed-loop on power-up unless reconfigured.
What certifications does MLX90412KLW-BAC-025-RE support out of the box?
MLX90412KLW-BAC-025-RE is UL/VDE/CE ready per its internal protection architecture and JEDEC-qualified DFN10 package. It meets IEC 60335-1 Annex G for motor control in household appliances and supports EN 61000-6-3/4 for conducted/radiated emissions. MLX90412KLW-BAC-025-RE requires no external components to pass basic safety and EMC tests in fan/pump end products.
MLX90412KLW-BAC-025-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-BAC-025-RE FAQ
1.How can I place an order for MLX90412KLW-BAC-025-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90412KLW-BAC-025-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-BAC-025-RE reliable?
The price and inventory of MLX90412KLW-BAC-025-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-BAC-025-RE is usually 5 days.
3.What payment methods are accepted for MLX90412KLW-BAC-025-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90412KLW-BAC-025-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90412KLW-BAC-025-RE?
MLX90412KLW-BAC-025-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90412KLW-BAC-025-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-BAC-025-RE?
For technical support, including MLX90412KLW-BAC-025-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90412KLW-BAC-025-RE requirements.
6.How does Aetrix verify that MLX90412KLW-BAC-025-RE is sourced from the original manufacturer or authorized distributors?
All MLX90412KLW-BAC-025-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-BAC-025-RE meets industry standards.
7.What is the process for return or replacement of MLX90412KLW-BAC-025-RE?
All MLX90412KLW-BAC-025-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90412KLW-BAC-025-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-BAC-025-RE part is unused and in its original packaging.
Return procedure for MLX90412KLW-BAC-025-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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