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Melexis Technologies NV MLX90290LSE-AAA-322-RE
- Part No.:
- MLX90290LSE-AAA-322-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Linear, Compass (ICs)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MLX90290LSE-AAA-322-RE.pdf
- Description:
- SENSOR HALL LINEAR ANALOG TSOT3
- Quantity:
- Payment:
- Shipping:
Inventory:3,373
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Product details
Overview
MLX90290LSE-AAA-322-RE from Melexis is a factory-trimmed linear Hall-effect sensor IC in TSOT-3L package, operating from 3.3 V ±5%, delivering 20.625 mV/mT sensitivity and 2000 ppm/°C magnet thermal drift compensation. It features ratiometric analog output (quiescent level = 50% VDD), 25 kHz signal bandwidth, and AEC-Q100 Grade 0 qualification for automotive position sensing.
For engineers reviewing the MLX90290LSE-AAA-322-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, exact pin functions, real-world use cases in motor commutation and current sensing, and validated alternative options with documented parameter differences.
Technical Context
The MLX90290LSE-AAA-322-RE integrates a Hall plate, chopper-stabilized amplifier, voltage regulator, and analog output driver in mixed-signal CMOS. Its offset cancellation system enables high accuracy (±1.5% linearity, ±5% sensitivity accuracy) across -40°C to +150°C.
It uses a 900 kHz chopping frequency for noise immunity and achieves 40–70 µs power-on time. The ratiometric output scales with supply voltage, and internal thermal compensation (Z=2 code) targets ferrite magnets with 2000 ppm/°C TCS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V ±5% - fixed nominal rail enabling direct interface with low-voltage microcontrollers and reducing external regulation overhead. |
| Sensitivity | 20.625 mV/mT @ 3.3 V - calibrated output slope for precise magnetic field measurement in linear/rotary position systems. |
| Thermal Drift Compensation | 2000 ppm/°C (Z=2) - factory-programmed coefficient matching ferrite magnet B-H curve drift over temperature. |
| Signal Bandwidth | 25 kHz - supports fast dynamic response in motor commutation and real-time current sensing up to ~40 kSPS sampling. |
| Quiescent Output Level | 50% of VDD (1.65 V @ 3.3 V) - ratiometric zero-field reference simplifying ADC reference alignment and eliminating supply-dependent offset errors. |
| AEC-Q100 Qualification | Grade 0 (-40°C to +150°C) - validated for under-hood automotive applications including transmission sensors and EPS motor feedback. |
| Power-On Time | 40–70 µs - enables rapid wake-up in micro-power systems with duty-cycled power gating. |
Pinout & Package
TSOT-3L surface-mount package (3.0 × 2.6 × 0.9 mm, RoHS-compliant), optimized for automated assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Supply input | Accepts 3.3 V ±5%; internal regulator powers analog core - requires ≥0.1 µF bypass capacitor placed adjacent to pin. |
| 2 (GND) | Ground reference | Low-impedance return path for Hall sensor, amplifier, and output driver - must be connected to clean system ground plane. |
| 3 (OUT) | Analog output | Ratiometric voltage output (0.25–3.05 V swing @ 3.3 V) - drives loads ≥5 kΩ; CL ≤ 100 nF with RS = 50 Ω recommended for EMC robustness. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed sensitivity & TCS | Eliminates post-manufacturing calibration; 20.625 mV/mT and 2000 ppm/°C are laser-trimmed at wafer level for production consistency. |
| Chopper-stabilized architecture | 900 kHz chopping suppresses 1/f noise and offset drift - enables <±1.5% linearity and <±5% sensitivity error over full temperature range. |
| Fast power-on time | 40–70 µs startup allows integration into power-gated subsystems (e.g., battery-powered sensors) without timing bottlenecks. |
| Ratiometric output | Output voltage scales directly with VDD - removes dependency on stable voltage references and simplifies ADC interfacing in variable-supply environments. |
| AEC-Q100 Grade 0 compliance | Validated for continuous operation at 150°C junction temperature - suitable for engine bay, transmission, and inverter applications. |
Applications
| Linear Position Sensing | Rotary Position Sensing |
|---|---|
|
Use Scenario: Non-contact displacement measurement of throttle valve or suspension arm using a moving magnet. IC Role / Device Role / Timing Role: Linear Hall sensor converting magnetic flux density into proportional analog voltage for MCU ADC sampling. Use Value: 20.625 mV/mT sensitivity and 25 kHz bandwidth enable sub-millimeter resolution and real-time closed-loop control at 10+ kHz update rates. |
Use Scenario: Angular position detection in steering angle sensors or motor rotor position feedback. IC Role / Device Role / Timing Role: Analog output Hall IC providing absolute angular information via magnet rotation above die surface. Use Value: Ratiometric 50% VDD quiescent point and ±1.5% linearity ensure accurate zero-crossing detection and consistent transfer function across supply and temperature variations. |
| Current Sensing | Motor Commutation |
|
Use Scenario: Isolated DC/AC current monitoring in battery management systems using a conductor loop and concentrator. IC Role / Device Role / Timing Role: High-accuracy linear Hall transducer measuring field generated by current-carrying conductor. Use Value: 2000 ppm/°C TCS compensates for magnet drift in current-sensing assemblies with ferrite cores, maintaining <±2% total error from -40°C to 150°C. |
Use Scenario: Six-step commutation feedback for BLDC motors in electric power steering or HVAC blowers. IC Role / Device Role / Timing Role: High-speed Hall sensor detecting rotor pole transitions to trigger MOSFET gate drivers. Use Value: 40–70 µs power-on time and 25 kHz bandwidth support >3000 RPM motor speeds with deterministic timing margins for safe switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear Hall sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90290LSE-AAA-321-RE | Same package and sensitivity (20.625 mV/mT), but 500 ppm/°C TCS (Z=1) instead of 2000 ppm/°C. | Targeted for AlNiCo or samarium-cobalt magnets with lower thermal drift; unsuitable for ferrite-based current sensors. | Select when magnet material has lower intrinsic TCS and higher cost sensitivity precludes Z=2 trimming. |
| MLX90363KGO-ABA-100-SP | Triaxis 3D Hall IC in SOIC-8; digital SPI output; ±0.5° angular accuracy; no ratiometric analog output. | Enables absolute rotary position with tilt compensation; requires MCU with SPI interface and firmware parsing. | Choose for high-precision multi-axis angle measurement where analog simplicity is secondary to resolution and vector capability. |
Compared with MLX90290LSE-AAA-322-RE, the -321-RE variant trades magnet drift compensation depth for broader compatibility with mid-drift magnets, while the MLX90363 offers digital 3D sensing at the cost of analog interface simplicity and added system-level processing.
Availability
MLX90290LSE-AAA-322-RE is available at Aetrix Electronics and suitable for automotive position sensing, industrial motor control, and battery-powered current monitoring requiring stable component supply across extended temperature ranges.
Supply support for MLX90290LSE-AAA-322-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 automotive ICs, with ISO/TS 16949-certified manufacturing and AEC-Q100 leadership.
The MLX90290 product line delivers factory-trimmed linear Hall sensors for high-reliability automotive and industrial motion sensing, emphasizing accuracy, thermal stability, and drop-in manufacturability.
FAQ
What is the supply voltage range and nominal operating voltage for MLX90290LSE-AAA-322-RE?
The MLX90290LSE-AAA-322-RE operates from 3.15 V to 5.5 V, with a nominal supply voltage of 3.3 V ±5%. This matches standard low-voltage microcontroller I/O rails and eliminates need for external regulators in many embedded designs. The device's ratiometric output ensures performance remains consistent across the full specified supply range.
How does the 2000 ppm/°C thermal coefficient (TCS) affect MLX90290LSE-AAA-322-RE performance in real applications?
The 2000 ppm/°C TCS in MLX90290LSE-AAA-322-RE is factory-programmed to counteract the thermal drift of ferrite magnets. When used with such magnets in position or current sensing, it maintains sensitivity stability within ±0.2% over -40°C to +150°C - critical for automotive under-hood applications where magnet performance degrades significantly with temperature.
What is the meaning of "ratiometric output" for MLX90290LSE-AAA-322-RE, and why does it matter?
MLX90290LSE-AAA-322-RE's output voltage is ratiometric: its quiescent level is exactly 50% of VDD (e.g., 1.65 V at 3.3 V), and its sensitivity scales linearly with supply voltage. This eliminates errors caused by VDD variation, simplifies ADC reference selection (e.g., using same VDD for both sensor and ADC), and improves system-level accuracy without external calibration.
Can MLX90290LSE-AAA-322-RE be used in high-noise automotive environments? What layout guidance applies?
Yes - MLX90290LSE-AAA-322-RE includes chopper stabilization (900 kHz) and meets AEC-Q100 Grade 0. For noisy environments, place a 100 nF ceramic bypass capacitor between VDD and GND as close as possible to the pins, and add a 1–10 nF capacitor on the OUT line. Use series resistance (≥50 Ω) near the connector if routing long cables to suppress EMI coupling.
What is the power-on time specification for MLX90290LSE-AAA-322-RE, and how does it impact system design?
The MLX90290LSE-AAA-322-RE achieves full output settling within 40–70 µs after VDD reaches 3.15 V. This fast startup enables use in power-gated subsystems (e.g., wake-on-event sensors), reduces idle current in battery-operated devices, and supports high-frequency sampling cycles without waiting for sensor stabilization delays.
MLX90290LSE-AAA-322-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Analog Voltage
- Sensing Range:
- -
- Voltage - Supply:
- 3.15V ~ 5.5V
- Current - Supply (Max):
- 8mA
- Current - Output (Max):
- 20mA
- Resolution:
- -
- Bandwidth:
- 50kHz
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Features:
- Programmable, Temperature Compensated
- Supplier Device Package:
- TSOT-3L
- Mounting Type:
- Surface Mount
MLX90290LSE-AAA-322-RE FAQ
1.How can I place an order for MLX90290LSE-AAA-322-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90290LSE-AAA-322-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 MLX90290LSE-AAA-322-RE reliable?
The price and inventory of MLX90290LSE-AAA-322-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90290LSE-AAA-322-RE is usually 5 days.
3.What payment methods are accepted for MLX90290LSE-AAA-322-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90290LSE-AAA-322-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90290LSE-AAA-322-RE?
MLX90290LSE-AAA-322-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90290LSE-AAA-322-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 MLX90290LSE-AAA-322-RE?
For technical support, including MLX90290LSE-AAA-322-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90290LSE-AAA-322-RE requirements.
6.How does Aetrix verify that MLX90290LSE-AAA-322-RE is sourced from the original manufacturer or authorized distributors?
All MLX90290LSE-AAA-322-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 MLX90290LSE-AAA-322-RE meets industry standards.
7.What is the process for return or replacement of MLX90290LSE-AAA-322-RE?
All MLX90290LSE-AAA-322-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90290LSE-AAA-322-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 MLX90290LSE-AAA-322-RE part is unused and in its original packaging.
Return procedure for MLX90290LSE-AAA-322-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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