My Inquiry
My Account
Melexis Technologies NV MLX90287KZC-AAA-000-SP
- Part No.:
- MLX90287KZC-AAA-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Motor Drivers, Controllers
- Package:
- 8-SMD, Flat Leads
- Datasheet:
-
MLX90287KZC-AAA-000-SP.pdf
- Description:
- IC MOTOR DRIVER 4.5V-18V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,752
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX90287KZC-AAA-000-SP 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 configurable speed curves (10%/20%/30%), delivers up to 5 W motor power, and targets low-noise VGA card cooling applications.
For engineers reviewing the MLX90287KZC-AAA-000-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its fixed speed curve configuration, absence of current limiting, AEC-Q100 qualification, SOIC8-ZC package with straight leads, and FG output for tachometer feedback.
Technical Context
The MLX90287KZC-AAA-000-SP implements AGC-based commutation to maintain optimal timing across varying magnetic field strengths, enabling consistent low-noise operation without external tuning. Its internal soft start and soft switching reduce mechanical stress and acoustic noise during startup and transitions.
This second-generation fan driver accepts PWM input for speed regulation and uses external resistors (Rvref, Rminsp, R1) to configure minimum speed and voltage reference-though speed curve selection is fixed at factory. It lacks built-in current limiting and relies on external protection for reverse polarity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 18 V - supports 12 V nominal fan systems with margin for automotive transients and industrial line variation. |
| Motor Power Capability | 5 W - sufficient for mid-power CPU, system, and GPU cooling fans in desktop and embedded platforms. |
| Speed Curve Configuration | Fixed (10%/20%/30%) - pre-programmed at manufacture; no resistor-based adjustment unlike MLX90297. |
| Average Fan Current | < 450 mA - enables thermal design with minimal copper area and standard PCB trace widths. |
| ESD Robustness (HBM) | 7 kV - meets AEC-Q100-002 for handling and board-level reliability in manufacturing environments. |
| Output Type | FG (Frequency Generator) - provides open-drain tachometer signal synchronized to motor rotation for closed-loop speed monitoring. |
| Package | ZC: Straight-leads SOIC8 - surface-mountable, industry-standard footprint compatible with automated assembly and reflow. |
Pinout & Package
ZC package: 8-pin SOIC with straight leads, 1.27 mm pitch, body size 5.0 × 6.2 mm, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Connects to 4.5–18 V rail; requires local 100 nF decoupling capacitor near pin. |
| GND | Ground reference | Common return for power, logic, and Hall sensor; must be low-impedance connection to minimize noise coupling. |
| OUT1 / OUT2 | H-bridge motor outputs | Drive single-coil BLDC fan windings; complementary switching controlled by internal commutation logic. |
| FG/RD | Open-drain tachometer output | FG mode: pulses per revolution; pulled high externally via 10 kΩ resistor to VDD for logic-level compatibility. |
| PWM | Speed control input | Accepts 0–100% duty cycle PWM (2–20 kHz typical); duty cycle directly maps to target fan speed. |
| VREF | Reference voltage output | Provides stable 1.25 V for configuring minimum speed via external Rminsp resistor (not current-limited). |
| MINSP | Minimum speed setting input | Accepts voltage divider from VREF to set lowest operational speed threshold; no internal current limit. |
| LRP | Low-RPM detection flag | Open-drain output asserted low when rotational speed falls below configured threshold; used for stall detection. |
Key Features
| Feature | Design Value |
|---|---|
| AGC-controlled commutation | Maintains precise timing across magnet aging, temperature drift, and air gap variation-eliminates need for recalibration in field-deployed fans. |
| Soft start & soft switching | Reduces audible click and mechanical jerk at startup and speed transitions; extends bearing life in continuous-duty cooling applications. |
| AEC-Q100 qualified | Validated for automotive-grade reliability (Grade 2: −40 °C to +105 °C ambient), enabling use in under-hood and infotainment cooling modules. |
| Single-layer PCB support | Minimal external components (no bootstrap capacitors, no external FETs) allow cost-optimized layouts-even half-size boards feasible for space-constrained modules. |
| Configurable minimum speed | VREF and MINSP pins enable precise low-speed hold (e.g., idle cooling) without firmware or microcontroller intervention. |
Applications
| Gaming GPU Cooling | VGA Card Thermal Management |
|---|---|
Use Scenario: High-performance discrete graphics cards requiring silent, responsive fan control during variable GPU load cycles. IC Role / Device Role / Timing Role: Single-coil BLDC fan driver with AGC-commutation and PWM speed interface; provides FG tach feedback to GPU BIOS or host controller. Use Value: Fixed 10%/20%/30% speed curves ensure predictable acoustic profile; soft start prevents loud "pop" at game launch or resolution change. | Use Scenario: Compact dual-slot VGA cards where board real estate limits component count and layer count. IC Role / Device Role / Timing Role: All-in-one fan driver integrating Hall sensing, commutation logic, and H-bridge-replaces 6+ discrete components. Use Value: Enables single-layer PCB layout with straight-lead SOIC8 footprint, reducing manufacturing cost and assembly complexity. |
| White Goods Air Circulation | Industrial Power Supply Fans |
Use Scenario: Low-noise air purifiers and refrigerator evaporator fans operating continuously in residential environments. IC Role / Device Role / Timing Role: Motor controller delivering smooth, quiet rotation at low speeds using AGC-timed commutation and soft switching. Use Value: 7 kV HBM ESD rating ensures robustness during automated assembly and field service; no current limiting simplifies thermal design for <450 mA average loads. | Use Scenario: Convection-cooled 1U server PSUs needing reliable, maintenance-free fan operation over 10-year service life. IC Role / Device Role / Timing Role: Primary fan actuator with FG feedback for health monitoring and LRP stall detection in fan-fail safety protocols. Use Value: AEC-Q100 qualification guarantees long-term parametric stability under thermal cycling; FG output feeds into BMC or PMBus host for predictive maintenance. |
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 R1), wider 3.3–18 V supply range. | Required where overcurrent protection is mandated (e.g., enclosed chassis, high-temp enclosures). | Select when robust fault tolerance and flexible speed curve tuning outweigh cost sensitivity. |
| DRV10983ZRTJR | TI part with integrated current sense, 12-bit DAC for analog speed control, no FG output-only PWM or analog input. | Used in applications needing precise analog-set speed or closed-loop current regulation, not tach feedback. | Choose only if FG output is unnecessary and analog interface or higher-resolution speed control is prioritized. |
Compared with MLX90287KZC-AAA-000-SP, MLX90297KZC-AAF-108 adds fault protection and configurability at higher BOM cost, while DRV10983ZRTJR trades tach feedback for analog control granularity-neither is pin-compatible, and all require distinct PCB layout and firmware adaptation.
Availability
MLX90287KZC-AAA-000-SP is available at Aetrix Electronics and suitable for gaming GPU cooling, white goods air circulation, and industrial power supply fans requiring stable component supply, AEC-Q100 reliability, and low-noise motor control.
Supply support for MLX90287KZC-AAA-000-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 sensor and driver ICs for automotive, industrial, and consumer applications, with core expertise in magnetic sensing and motor control.
The MLX90287 belongs to Melexis' Gen II single-coil fan driver product line, engineered specifically for ultra-low-noise, high-efficiency cooling in space- and cost-constrained thermal systems.
FAQ
What is the function of the FG/RD pin on the MLX90287KZC-AAA-000-SP?
The FG/RD pin on the MLX90287KZC-AAA-000-SP is configured as an open-drain Frequency Generator (FG) output in this variant. It delivers a pulse-per-revolution tachometer signal synchronized to motor rotation, enabling host systems to monitor actual fan speed. An external pull-up resistor (typically 10 kΩ to VDD) is required for proper logic-level operation. The RD (Rotor Detection) function is not enabled in MLX90287KZC-AAA-000-SP.
Does the MLX90287KZC-AAA-000-SP include current limiting?
No, the MLX90287KZC-AAA-000-SP does not include internal current limiting. This distinguishes it from the MLX90297 family, which integrates programmable current limit. Designers must rely on external circuitry-such as fuse, PTC, or upstream current-sense monitoring-to protect against overcurrent conditions. The MLX90287KZC-AAA-000-SP datasheet explicitly states "Current limiting: No" in its quick reference table.
Can the speed curve of the MLX90287KZC-AAA-000-SP be changed after manufacturing?
No, the speed curve of the MLX90287KZC-AAA-000-SP is fixed at 10%, 20%, or 30%-determined during factory programming and not user-configurable. Unlike the MLX90297, which uses R1 to select among three curves, the MLX90287KZC-AAA-000-SP lacks resistor-based speed curve adjustment. This fixed behavior is confirmed in both the Quick Reference table and functional description sections of the official Melexis documentation.
What is the operating temperature range for the MLX90287KZC-AAA-000-SP?
The MLX90287KZC-AAA-000-SP is rated for industrial/consumer grade operation from −40 °C to +105 °C ambient temperature. This range is validated under AEC-Q100 stress testing (Grade 2), ensuring reliability in demanding thermal environments such as enclosed gaming chassis, industrial power supplies, and home appliance motor compartments. The SOIC8-ZC package supports this full range without derating.
Is the MLX90287KZC-AAA-000-SP pin-compatible with the MLX90297KZC-AAF-108?
No, the MLX90287KZC-AAA-000-SP is not pin-compatible with the MLX90297KZC-AAF-108. Although both use the ZC (straight-leads SOIC8) package and share identical pin numbering, their internal functionality differs: MLX90297KZC-AAF-108 repurposes the LRP pin for current limit enable and modifies FG/RD behavior to support RD mode, requiring different external biasing and firmware interpretation. Direct substitution would result in incorrect speed control or missing fault reporting.
MLX90287KZC-AAA-000-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- 8-SMD, Flat Leads
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- -
- Output Configuration:
- -
- Interface:
- PWM
- Technology:
- -
- Step Resolution:
- -
- Applications:
- Fan Motor Driver
- Current - Output:
- 450mA
- Voltage - Supply:
- 4.5V ~ 18V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MLX90287KZC-AAA-000-SP FAQ
1.How can I place an order for MLX90287KZC-AAA-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-SP reliable?
The price and inventory of MLX90287KZC-AAA-000-SP 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-SP is usually 5 days.
3.What payment methods are accepted for MLX90287KZC-AAA-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90287KZC-AAA-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90287KZC-AAA-000-SP?
MLX90287KZC-AAA-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-SP?
For technical support, including MLX90287KZC-AAA-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90287KZC-AAA-000-SP requirements.
6.How does Aetrix verify that MLX90287KZC-AAA-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90287KZC-AAA-000-SP?
All MLX90287KZC-AAA-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90287KZC-AAA-000-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 MLX90287KZC-AAA-000-SP part is unused and in its original packaging.
Return procedure for MLX90287KZC-AAA-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX90287KZC-AAA-000-SP Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
