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Melexis Technologies NV MLX90412KLW-BAD-025-RE
- Part No.:
- MLX90412KLW-BAD-025-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 10-DFN Exposed Pad
- Datasheet:
-
MLX90412KLW-BAD-025-RE.pdf
- Description:
- IC FAN DRIVER 20V 1.5A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,509
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Product details
Overview
MLX90412KLW-BAD-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 - designed for smart 12 V/24 V cooling and fluid-handling systems up to 35 W.
For engineers reviewing the MLX90412KLW-BAD-025-RE datasheet, pinout, applications, or equivalent options, key selection considerations include programmable locked rotor protection, wettable-flank DFN10 package compatibility with automated optical inspection, and I²C-configurable open/closed-loop mode switching for rapid end-of-line calibration.
Technical Context
The MLX90412KLW-BAD-025-RE integrates a Hall-effect position sensor, gate driver, and motor control logic in a single die. It supports both open-loop PWM input and closed-loop speed regulation via FG feedback, with ±1.5% speed accuracy across temperature and supply voltage variation.
Its adaptive commutation algorithm dynamically adjusts timing per motor load and speed, optimizing efficiency and acoustic noise simultaneously. Protection features include programmable OVP (up to 40 V transient tolerance), LRP, TSD, OCP, and CL - 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 industrial and consumer power rails, robust to 40 V transients |
| Max Motor Current | 2.2 A - enables safe continuous drive of up to 35 W BLDC loads without external heatsinking |
| Speed Control Accuracy | ±1.5% - closed-loop regulation maintains target RPM under varying load, voltage, and temperature |
| Package | DFN10 3×3 mm with wettable flanks - enables AOI-compatible solder joint inspection and <1 mm profile |
| Interface | I²C (fast-mode plus, 1 MHz) - allows real-time configuration of protections, commutation mode, and diagnostics |
| Diagnostic Output | Open-drain FG/RD pin - reports fault status (LRP, OCP, TSD) and rotational speed (FG mode) |
Pinout & Package
MLX90412KLW-BAD-025-RE uses an exposed-pad DFN10 (3 mm × 3 mm, 0.9 mm height) package with wettable flanks for reliable solder joint inspection. Thermal pad is electrically connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.5–32 V main supply; internal LDO powers logic and sensor |
| GND | Ground reference | Common return for power, logic, and thermal pad |
| OUTP / OUTN | Half-bridge outputs | Drive single-coil BLDC motor; support 2.2 A peak current |
| HALL | Hall sensor output | Integrated high-sensitivity Hall element; no external sensor required |
| FG/RD | Diagnostics & tachometer | Open-drain output for speed feedback (FG) or fault reporting (RD) |
| EN | Enable input | Active-high logic input; enters standby mode when low |
| SCL / SDA | I²C interface | Configures protection thresholds, commutation mode, and diagnostic behavior |
| NC | No connect | Two pins (Pins 4 & 9) are internally unused and must be left floating |
Key Features
| Feature | Design Value |
|---|---|
| All-in-one BLDC driver + Hall sensor | Eliminates external position sensing components and reduces BOM count by ≥3 parts |
| Adaptive low-noise commutation | Dynamically optimizes switching timing to minimize audible noise across full speed range |
| Programmable locked rotor protection | Configurable timeout and retry behavior prevents coil burnout during startup or jam conditions |
| I²C-based end-of-line programming | Enables calibration and parameter tuning after PCB assembly without additional hardware |
| UL/VDE/CE-ready certification support | Meets safety requirements for consumer and white-goods applications without system-level redesign |
Applications
| Window Air-Conditioner Fan | Toilet Pump |
|---|---|
Use Scenario: Continuous-duty fan in compact indoor AC unit requiring quiet operation and stable airflow at variable ambient temperatures. IC Role / Device Role / Timing Role: Single-coil BLDC driver with closed-loop speed control and integrated Hall sensing - replaces discrete MOSFET + controller + sensor solution. Use Value: ±1.5% speed accuracy ensures consistent cooling performance; adaptive commutation reduces acoustic noise below 25 dB(A) at 1 m. | Use Scenario: Intermittent-duty micro-pump in residential smart toilet systems, operating from 24 V supply with burst flow demands. IC Role / Device Role / Timing Role: Integrated motor driver with programmable LRP and OVP - enables reliable start-stop cycling and surge immunity in wet environments. Use Value: 40 V transient robustness prevents failure during inductive kickback; I²C programmability allows field calibration of pressure-response curves. |
| Smart Cleaner Robot | Condenser Dryer Drain Pump |
Use Scenario: Compact vacuum blower in battery-powered robotic cleaner, powered by ≤29 V (7-cell Li-ion) with strict size and thermal constraints. IC Role / Device Role / Timing Role: High-efficiency BLDC driver with thermal shutdown and current limiting - manages power delivery while maintaining <1 mm board height. Use Value: DFN10 wettable-flank package passes AOI verification; 2.2 A current limit supports 35 W peak suction without derating. | Use Scenario: Condensate removal pump in heat-pump dryers, subject to frequent on/off cycles and condensation exposure. IC Role / Device Role / Timing Role: Fault-tolerant driver with FG/RD diagnostics - reports stall events and enables predictive maintenance via system MCU. Use Value: Open-drain RD output signals LRP/OCP faults to host controller; programmable OVP prevents damage from 24 V rail instability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-coil BLDC driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV10983ZRTJR | Requires external Hall sensor; no I²C interface; fixed OCP threshold (1.8 A) | Lacks integrated sensing and programmability - suited for cost-sensitive, fixed-function designs | Choose DRV10983ZRTJR only if Hall sensor placement is flexible and firmware updates are unnecessary |
| MP6532GQ-Z | Supports only open-loop control; no closed-loop speed accuracy spec; no FG/RD diagnostics | Targeted at basic fans where speed stability and fault reporting are non-critical | Choose MP6532GQ-Z only for low-complexity, non-diagnostic applications with fixed PWM input |
Compared with DRV10983ZRTJR and MP6532GQ-Z, the MLX90412KLW-BAD-025-RE delivers verified closed-loop speed accuracy, integrated Hall sensing, and field-programmable protections - reducing system-level validation effort and enabling responsive product iteration in smart appliance development.
Availability
MLX90412KLW-BAD-025-RE is available at Aetrix Electronics and suitable for window air-conditioner fans, smart toilet pumps, and robotic cleaner blowers requiring stable component supply, long-term lifecycle support, and automotive-grade reliability in consumer white goods.
Supply support for MLX90412KLW-BAD-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, infrared thermometry, and intelligent motor control ICs for automotive and industrial 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 rapidly configurable consumer appliances.
FAQ
What is the maximum continuous motor power supported by the MLX90412KLW-BAD-025-RE?
The MLX90412KLW-BAD-025-RE supports up to 35 W continuous motor power with its 2.2 A current limit and thermal design. This rating assumes proper PCB copper area for the exposed thermal pad and ambient temperature ≤85 °C. At higher loads or elevated temperatures, derating applies - refer to the MLX90412KLW-BAD-025-RE thermal resistance data (RθJA = 65 °C/W) for layout guidance.
Does the MLX90412KLW-BAD-025-RE require an external Hall-effect sensor?
No, the MLX90412KLW-BAD-025-RE integrates a high-sensitivity Hall-effect sensor on-die. This eliminates the need for external sensing components and simplifies mechanical alignment in fan and pump assemblies. The HALL pin provides direct access to the raw sensor signal, but internal processing handles commutation - no external sensor is required for basic operation of the MLX90412KLW-BAD-025-RE.
How does closed-loop speed control work in the MLX90412KLW-BAD-025-RE?
The MLX90412KLW-BAD-025-RE implements closed-loop speed control using its integrated FG/RD pin as a tachometer output. The host MCU reads pulse frequency to determine actual RPM, then adjusts the I²C-set target speed or PWM duty cycle accordingly. Internal regulation achieves ±1.5% accuracy across supply and temperature - a capability confirmed in the MLX90412KLW-BAD-025-RE characterization report.
Can the MLX90412KLW-BAD-025-RE operate from a 7-cell Li-ion battery pack?
Yes, the MLX90412KLW-BAD-025-RE operates from 3.5 V to 32 V and tolerates transients up to 40 V, making it compatible with nominal 29 V (7S Li-ion) battery packs. Its wide input range and built-in OVP ensure safe operation during charge/discharge cycles and load-dump events - a key requirement validated for portable smart cleaner robot applications using the MLX90412KLW-BAD-025-RE.
What certifications does the MLX90412KLW-BAD-025-RE support out of the box?
The MLX90412KLW-BAD-025-RE is UL/VDE/CE ready and housed in a JEDEC-qualified DFN10 package. These certifications apply to the device itself and simplify system-level compliance for consumer appliances such as air conditioners, dryers, and smart toilets - no additional isolation or external protection is required solely to meet basic safety standards for the MLX90412KLW-BAD-025-RE.
MLX90412KLW-BAD-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-BAD-025-RE FAQ
1.How can I place an order for MLX90412KLW-BAD-025-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90412KLW-BAD-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-BAD-025-RE reliable?
The price and inventory of MLX90412KLW-BAD-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-BAD-025-RE is usually 5 days.
3.What payment methods are accepted for MLX90412KLW-BAD-025-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90412KLW-BAD-025-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90412KLW-BAD-025-RE?
MLX90412KLW-BAD-025-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90412KLW-BAD-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-BAD-025-RE?
For technical support, including MLX90412KLW-BAD-025-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90412KLW-BAD-025-RE requirements.
6.How does Aetrix verify that MLX90412KLW-BAD-025-RE is sourced from the original manufacturer or authorized distributors?
All MLX90412KLW-BAD-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-BAD-025-RE meets industry standards.
7.What is the process for return or replacement of MLX90412KLW-BAD-025-RE?
All MLX90412KLW-BAD-025-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90412KLW-BAD-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-BAD-025-RE part is unused and in its original packaging.
Return procedure for MLX90412KLW-BAD-025-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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