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Melexis Technologies NV MLX90287KZC-AAA-000-RE
- Part No.:
- MLX90287KZC-AAA-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 8-SMD, Flat Leads
- Datasheet:
-
MLX90287KZC-AAA-000-RE.pdf
- Description:
- IC FAN DRIVER PWM 4.5V-18V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,018
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Product details
Overview
MLX90287KZC-AAA-000-RE from Melexis is a single-coil brushless DC fan driver IC with integrated Hall sensor, AGC-controlled commutation, PWM speed control, soft start, and soft switching. It operates from 4.5 V to 18 V, supports fixed-speed curve configuration, delivers up to 5 W motor power, and is AEC-Q100 qualified for industrial/consumer cooling applications including VGA card fans and white goods.
For engineers reviewing the MLX90287KZC-AAA-000-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its SOIC8-ZC package, FG output (not RD), absence of current limiting, 7 kV HBM ESD rating, and fixed (non-configurable) speed curve - critical for low-noise, cost-sensitive thermal management designs.
Technical Context
The MLX90287KZC-AAA-000-RE implements AGC-based Hall sensor signal conditioning to maintain stable commutation across varying magnetic field strengths. Its internal logic enables precise single-coil motor drive with soft switching to reduce acoustic noise and EMI.
It accepts PWM input for speed regulation and features built-in reverse polarity protection. The device lacks programmable current limiting but includes thermal shutdown (OTP) and lock-rotor protection (LRP), with no external current-sense resistor required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 18 V - supports standard 12 V fan rails with margin for transients and brown-out resilience |
| Motor Power Capability | 5 W - suitable for mid-power cooling fans in GPUs, power supplies, and home appliances |
| ESD Rating (HBM) | 7 kV - meets AEC-Q100-002 for robust handling in manufacturing and end-use environments |
| Speed Curve Configuration | Fixed - eliminates external resistor network (Rvref/Rminsp/R1), reducing BOM count and layout complexity |
| Average Fan Current | < 450 mA - enables use with standard PCB traces and low-cost connectors without derating |
| Package Type | ZC: Straight-leads SOIC8 - compatible with automated SMT assembly and manual rework, 1.27 mm pitch |
| Output Signal | FG (Fan Tach) - provides rotational speed feedback for closed-loop monitoring, not RD (Rotor Detection) |
Pinout & Package
MLX90287KZC-AAA-000-RE is housed in a ZC variant of SOIC8 with straight leads, optimized for compact board space and thermal dissipation in fan modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 4.5–18 V rail; internal LDO powers internal circuitry and Hall sensor |
| GND | Ground reference | Common return path for power, logic, and motor drive stages |
| PWM | Speed control input | Accepts 0–100% duty cycle PWM signal (typ. 21–25 kHz) to regulate fan speed |
| OUT1 / OUT2 | H-bridge motor outputs | Drive single-coil BLDC fan; complementary switching with soft transition to minimize EMI |
| FG/RD | Feedback output | Configured as FG (tachometer pulse per revolution); open-drain, 5 V tolerant |
| VREF | Reference voltage output | Provides 2.5 V reference for optional external circuits; not used in fixed-curve mode |
| MINSP | Minimum speed enable | Logic-high enables minimum speed hold; tied to VDD or left floating for default operation |
| NC | No connect | Pin 8 is unused and must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| AGC-controlled Hall commutation | Maintains consistent timing and torque across magnet aging, temperature drift, and air gap variation |
| Soft start and soft switching | Reduces inrush current and acoustic noise during startup and commutation transitions |
| Built-in reverse polarity protection | Eliminates need for external series diode, saving board space and forward voltage drop |
| Single-layer PCB compatibility | Enables cost-optimized layouts even at half-size footprint, verified per Melexis reference design |
| AEC-Q100 Grade 2 qualification | Validated for industrial/consumer ambient temperatures (−40 °C to +105 °C junction) |
Applications
| Gaming GPU Cooling | Refrigerator Evaporator Fans |
|---|---|
Use Scenario: High-density graphics cards requiring silent, responsive thermal management under variable load. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver with FG tach feedback and PWM speed control. Use Value: Fixed-speed curve and soft switching reduce audible whine while maintaining 5 W airflow capacity at <450 mA average current. | Use Scenario: Low-noise evaporator fans in premium refrigerators where acoustic performance impacts user experience. IC Role / Device Role / Timing Role: Integrated Hall sensor + driver enabling precise commutation without external timing components. Use Value: AGC compensation ensures reliable startup and rotation stability despite magnet degradation over 10+ year appliance lifetimes. |
| Industrial Power Supply Fans | LED Headlight Thermal Management |
Use Scenario: Forced-air cooling in enclosed 1U server PSUs with strict EMI and reliability requirements. IC Role / Device Role / Timing Role: Motor controller with built-in OTP and LRP fault protection, FG monitoring, and reverse polarity immunity. Use Value: Eliminates discrete protection diodes and current-sense resistors, lowering BOM cost and improving long-term field reliability. | Use Scenario: Compact, high-brightness LED headlight modules needing compact, thermally efficient fan control. IC Role / Device Role / Timing Role: SOIC8-ZC packaged driver enabling direct integration into tight headlight housings. Use Value: 4.5–18 V operation accommodates automotive battery transients; 7 kV HBM withstands assembly ESD events. |
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 |
|---|---|---|---|
| MLX90297KZC-AAF-108 | Includes 800 mA current limiting; configurable speed curve via Rvref/Rminsp/R1 | Required where fan stall protection or adaptive speed profiles (e.g., 10%/20%/30%) are needed | Select when design requires programmable current foldback or multi-point speed curve tuning |
| DRV10983ZRTJR | TI device with integrated FETs, 3-phase drive, and I²C interface; no Hall AGC | Used in higher-power, sensorless 3-phase fans where Hall sensing is unnecessary or undesirable | Choose for sensorless operation or when digital configurability outweighs analog simplicity |
Compared with MLX90287KZC-AAA-000-RE, MLX90297KZC-AAF-108 adds current limiting and curve flexibility at the cost of extra resistors and layout area, while DRV10983ZRTJR shifts to sensorless 3-phase architecture - making MLX90287KZC-AAA-000-RE optimal for cost-sensitive, fixed-profile, Hall-based single-coil systems.
Availability
MLX90287KZC-AAA-000-RE is available at Aetrix Electronics and suitable for gaming GPU cooling, refrigerator evaporator fans, and industrial power supply fans requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant thermal management ICs.
Supply support for MLX90287KZC-AAA-000-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 sensor and driver ICs for automotive, industrial, and consumer applications, with expertise in magnetic sensing and motor control.
The MLX90287 product line delivers highly integrated, low-noise single-coil fan drivers targeting cost-sensitive, high-reliability cooling systems where Hall-based commutation and minimal external components are essential.
FAQ
What is the function of the FG/RD pin on the MLX90287KZC-AAA-000-RE?
The FG/RD pin on the MLX90287KZC-AAA-000-RE is configured as FG (fan tachometer) output in this variant, delivering one open-drain pulse per motor revolution for speed monitoring. It is not used as RD (rotor detection), and no external pull-up is required beyond standard 5 V system-level biasing. This functionality is fixed per ordering code MLX90287KZC-AAA-000-RE and cannot be reconfigured.
Does the MLX90287KZC-AAA-000-RE support current limiting?
No, the MLX90287KZC-AAA-000-RE does not include current limiting. Unlike the MLX90297 family, it relies on external design margins and thermal protection (OTP) instead of active foldback. This is confirmed in the Quick Reference table and ordering information, where "Current limit" is marked "N/A" for MLX90287KZC-AAA-000.
What speed curve options are available for the MLX90287KZC-AAA-000-RE?
The MLX90287KZC-AAA-000-RE implements a fixed speed curve - it does not support resistor-based configuration like the MLX90297. The fixed curve simplifies design by eliminating Rvref, Rminsp, and R1 components, making it ideal for applications where consistent, predictable fan response is prioritized over tunability.
Is the MLX90287KZC-AAA-000-RE qualified for automotive use?
The MLX90287KZC-AAA-000-RE is qualified to AEC-Q100 Grade 2 (−40 °C to +105 °C), but it is designated for Industrial/Consumer grade per ordering code - not Automotive grade. Automotive variants (e.g., MLX90297LLW-ABF-206) use different packages and screening; MLX90287KZC-AAA-000-RE is intended for non-safety-critical thermal management in commercial and industrial settings.
What is the maximum motor power supported by the MLX90287KZC-AAA-000-RE?
The MLX90287KZC-AAA-000-RE supports up to 5 W of motor power, as specified in the Quick Reference table and validated in Melexis' application notes. This rating assumes proper PCB copper area, ambient temperature ≤ 70 °C, and operation within the 4.5–18 V supply range. Exceeding 5 W risks thermal shutdown or reduced lifetime.
MLX90287KZC-AAA-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 8-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- PWM
- Technology:
- CMOS
- Step Resolution:
- -
- Applications:
- Fan Motor Driver
- Current - Output:
- -
- Voltage - Supply:
- 4.5V ~ 16V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MLX90287KZC-AAA-000-RE FAQ
1.How can I place an order for MLX90287KZC-AAA-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-RE reliable?
The price and inventory of MLX90287KZC-AAA-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90287KZC-AAA-000-RE is usually 5 days.
3.What payment methods are accepted for MLX90287KZC-AAA-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90287KZC-AAA-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90287KZC-AAA-000-RE?
MLX90287KZC-AAA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-RE?
For technical support, including MLX90287KZC-AAA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90287KZC-AAA-000-RE requirements.
6.How does Aetrix verify that MLX90287KZC-AAA-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-RE meets industry standards.
7.What is the process for return or replacement of MLX90287KZC-AAA-000-RE?
All MLX90287KZC-AAA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-RE part is unused and in its original packaging.
Return procedure for MLX90287KZC-AAA-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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