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Home > Products > Sensors, Transducers > Magnetic Sensors > Linear, Compass (ICs)

Melexis Technologies NV MLX90290LSE-AAA-320-RE

Name: MLX90290LSE-AAA-320-RE
Brand: Melexis Technologies NV
SKU: MLX90290LSE-AAA-320-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90290LSE-AAA-320-RE

Manufacturer:: Melexis Technologies NV

Category:: Linear, Compass (ICs)

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: MLX90290LSE-AAA-320-RE.pdf

Description:: SENSOR HALL LINEAR ANALOG TSOT3

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Product details

Overview

MLX90290LSE-AAA-320-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 with 0 ppm/°C magnet thermal drift compensation, and AEC-Q100 qualified for automotive position sensing in motor commutation and current measurement systems.

For engineers reviewing the MLX90290LSE-AAA-320-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, ratiometric output behavior, TSOT-3L footprint compatibility, and validated alternatives for high-speed linear magnetic field sensing under -40°C to +150°C conditions.

Technical Context

The MLX90290LSE-AAA-320-RE integrates a Hall plate, chopper-stabilized amplifier, voltage regulator, and analog output driver in mixed-signal CMOS. Its ratiometric output (V_OUT = V_OQREL × V_DD + S × B) ensures proportional response to both magnetic flux density (B) and supply voltage, with quiescent output fixed at 50% of V_DD.

It features 900 kHz chopping frequency for offset cancellation, 40–70 µs power-on time, and no internal filtering (Z=0 option), enabling microsecond-scale step response-critical for real-time motor control and fast current sensing where phase delay must be minimized.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	3.3 V ±5% - matches standard low-voltage microcontroller I/O rails and enables direct interface without level-shifting.
Sensitivity	20.625 mV/mT @ 3.3 V - delivers 6.25× higher signal per mT than baseline 3.3 mV/mT sensors, improving SNR in compact PCB layouts.
Thermal Drift Compensation	0 ppm/°C - eliminates magnet-induced offset drift, essential for precision current sensing over temperature.
Output Type	Ratiometric analog voltage - output scales linearly with V_DD, removing supply variation errors in ADC-based readout systems.
Operating Temperature	-40°C to +150°C - supports under-hood automotive deployment and industrial motor drive environments.
Bandwidth	≥25 kHz (TSOT-3L) - sufficient for 10 kRPM motor commutation (≈166 Hz electrical frequency) with <1° phase lag.
AEC-Q100 Grade	Grade 0 - qualified for automotive safety-critical subsystems including EPS and transmission control.

Pinout & Package

MLX90290LSE-AAA-320-RE uses the RoHS-compliant TSOT-3L surface-mount package (3.0 × 2.6 × 0.9 mm), optimized for automated placement and high-density PCBs. The Hall sensing element is located 0.80 mm from package bottom, centered under the die area.

Pin/Terminal	Circuit Role	Design Meaning
1 (VDD)	Power supply input	Accepts 3.15–5.5 V; internal regulator supplies bias to Hall plate and analog core; requires ≥0.1 µF ceramic bypass capacitor adjacent to pin.
2 (OUT)	Analog output	Push-pull ratiometric voltage output (0.25–3.05 V at 3.3 V supply); drives loads up to 1 mA into ≥5 kΩ; slew rate supports >25 kHz bandwidth.
3 (GND)	Reference ground	Low-impedance return path for supply and output; must be connected directly to system ground plane to minimize noise coupling into Hall plate.

Key Features

Feature	Design Value
Factory-programmed sensitivity	20.625 mV/mT trimmed at 3.3 V - eliminates post-assembly calibration, reducing test time and BOM cost in volume production.
Zero-drift magnet compensation	0 ppm/°C TCS - maintains linearity and offset stability across temperature without external compensation circuitry.
Fast power-on response	40–70 µs wake-up - enables micro-power gating in battery-operated systems, minimizing idle current during sensor sleep cycles.
Chopper-stabilized architecture	900 kHz chopping frequency - suppresses 1/f noise and nullifies thermal offset drift, ensuring <±1.5% linearity over full operating range.
AEC-Q100 qualification	Grade 0 (-40°C to +150°C) - meets automotive reliability requirements for mission-critical position feedback in steering and braking modules.

Applications

Linear Position Sensing	Motor Commutation
Use Scenario: Non-contact displacement measurement of throttle valve or suspension arm in automotive ECUs. IC Role / Device Role / Timing Role: Linear Hall sensor converting magnetic field gradient from moving ferrous target into proportional analog voltage for ADC sampling. Use Value: 20.625 mV/mT sensitivity enables sub-0.1 mm resolution at 3.3 V supply; 0 ppm/°C TCS ensures consistent accuracy across engine bay temperature swings.	Use Scenario: Rotor angle detection in BLDC motors for trapezoidal commutation in e-bike controllers. IC Role / Device Role / Timing Role: Analog position feedback source feeding comparator or MCU ADC to determine optimal phase switching timing. Use Value: 25 kHz bandwidth and <70 µs power-on time support real-time commutation at >10 kRPM; TSOT-3L footprint allows placement near motor stator windings.
Current Sensing	Rotary Position Sensing
Use Scenario: Isolated DC bus current monitoring in OBC and DC-DC converters for EV charging systems. IC Role / Device Role / Timing Role: Closed-loop or open-loop magnetic field transducer measuring conductor-generated flux via integrated Hall plate. Use Value: Ratiometric output rejects supply ripple; 0 ppm/°C TCS prevents gain error from magnet temperature drift-critical for ±1% current accuracy over lifetime.	Use Scenario: Steering wheel angle detection in ADAS systems using multi-pole ring magnet and surface-mount sensor. IC Role / Device Role / Timing Role: Analog angular position transducer providing continuous voltage output proportional to magnet pole orientation. Use Value: ±1.5% linearity and <±1.5% symmetry ensure <2° angular error over 360° rotation; TSOT-3L package enables low-profile integration behind airbag module.

Linear Position Sensing

Motor Commutation

Use Scenario: Non-contact displacement measurement of throttle valve or suspension arm in automotive ECUs.

IC Role / Device Role / Timing Role: Linear Hall sensor converting magnetic field gradient from moving ferrous target into proportional analog voltage for ADC sampling.

Use Value: 20.625 mV/mT sensitivity enables sub-0.1 mm resolution at 3.3 V supply; 0 ppm/°C TCS ensures consistent accuracy across engine bay temperature swings.

Use Scenario: Rotor angle detection in BLDC motors for trapezoidal commutation in e-bike controllers.

IC Role / Device Role / Timing Role: Analog position feedback source feeding comparator or MCU ADC to determine optimal phase switching timing.

Use Value: 25 kHz bandwidth and <70 µs power-on time support real-time commutation at >10 kRPM; TSOT-3L footprint allows placement near motor stator windings.

Current Sensing

Rotary Position Sensing

Use Scenario: Isolated DC bus current monitoring in OBC and DC-DC converters for EV charging systems.

IC Role / Device Role / Timing Role: Closed-loop or open-loop magnetic field transducer measuring conductor-generated flux via integrated Hall plate.

Use Value: Ratiometric output rejects supply ripple; 0 ppm/°C TCS prevents gain error from magnet temperature drift-critical for ±1% current accuracy over lifetime.

Use Scenario: Steering wheel angle detection in ADAS systems using multi-pole ring magnet and surface-mount sensor.

IC Role / Device Role / Timing Role: Analog angular position transducer providing continuous voltage output proportional to magnet pole orientation.

Use Value: ±1.5% linearity and <±1.5% symmetry ensure <2° angular error over 360° rotation; TSOT-3L package enables low-profile integration behind airbag module.

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-310-RE	16.5 mV/mT sensitivity, same 0 ppm/°C TCS and TSOT-3L package	Lower output swing per mT reduces SNR margin in noisy environments but eases ADC full-scale alignment	Select when system-level sensitivity budget allows lower gain or when matching legacy calibration curves.
MLX90290LSE-AAA-332-RE	33 mV/mT sensitivity, 2000 ppm/°C TCS for ferrite magnet compensation	Higher sensitivity improves resolution but requires magnet-specific thermal compensation; not drop-in for zero-drift use cases	Choose only when using temperature-sensitive ferrite magnets and full thermal drift correction is required.

Compared with MLX90290LSE-AAA-320-RE, the -310-RE offers reduced sensitivity for improved ADC headroom, while the -332-RE trades zero-drift stability for higher gain and magnet-specific thermal compensation-making the -320-RE optimal for precision current sensing and closed-loop control where supply- and temperature-invariant linearity is mandatory.

Availability

MLX90290LSE-AAA-320-RE is available at Aetrix Electronics and suitable for automotive position sensing, motor commutation, and current measurement applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MLX90290LSE-AAA-320-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 intelligent sensors and wireless RF solutions for automotive, industrial, and consumer markets.

The MLX90290 product line delivers factory-trimmed linear Hall-effect sensors optimized for high-accuracy, high-speed magnetic field measurement in harsh environments-designed specifically for automotive-grade position, current, and speed sensing.

FAQ

What is the supply voltage range for MLX90290LSE-AAA-320-RE?

The MLX90290LSE-AAA-320-RE operates from 3.15 V to 5.5 V, with nominal supply set at 3.3 V ±5%. It includes an internal voltage regulator, allowing stable operation across this range while maintaining ratiometric output behavior. At 3.3 V, the device draws 3–8 mA typical supply current, supporting low-power system designs without external regulation.

Does MLX90290LSE-AAA-320-RE require external filtering components?

No, MLX90290LSE-AAA-320-RE does not require external filtering because it is configured with Z=0 (0 ppm/°C TCS), which disables internal filtering. This yields microsecond-scale step response-ideal for fast current sensing and real-time motor control. A 0.1 µF ceramic bypass capacitor between VDD and GND is mandatory, but RC networks on the output are optional and only recommended for EMI suppression in noisy environments.

How is the output voltage of MLX90290LSE-AAA-320-RE related to magnetic field and supply voltage?

The MLX90290LSE-AAA-320-RE output follows V_OUT = 0.5 × V_DD + S × B, where S = 20.625 mV/mT at 3.3 V. This ratiometric relationship means output scales linearly with both supply voltage and magnetic flux density. At zero field, output is precisely 50% of V_DD; at ±50 mT, output spans ~0.25 V to ~3.05 V with 3.3 V supply-enabling direct interfacing with 3.3 V ADCs.

What is the significance of the '320' in MLX90290LSE-AAA-320-RE?

In MLX90290LSE-AAA-320-RE, '320' decodes as Y=2 (20.625 mV/mT sensitivity at 3.3 V) and Z=0 (0 ppm/°C magnet thermal drift coefficient). This combination targets applications demanding high sensitivity without magnet-induced gain drift-such as precision current sensing using AlNiCo or samarium-cobalt magnets where thermal stability is critical.

Is MLX90290LSE-AAA-320-RE pin-compatible with other variants in the MLX90290 family?

Yes, all MLX90290 variants-including MLX90290LSE-AAA-320-RE-share identical TSOT-3L pinout (VDD, OUT, GND) and mechanical footprint. No PCB layout changes are needed when substituting between sensitivity or TCS options within the SE package family, provided thermal and electrical design margins accommodate the new output swing and load requirements.

MLX90290LSE-AAA-320-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-320-RE FAQ

1.How can I place an order for MLX90290LSE-AAA-320-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90290LSE-AAA-320-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-320-RE reliable?

The price and inventory of MLX90290LSE-AAA-320-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-320-RE is usually 5 days.

3.What payment methods are accepted for MLX90290LSE-AAA-320-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90290LSE-AAA-320-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90290LSE-AAA-320-RE?

MLX90290LSE-AAA-320-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90290LSE-AAA-320-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-320-RE?

For technical support, including MLX90290LSE-AAA-320-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90290LSE-AAA-320-RE requirements.

6.How does Aetrix verify that MLX90290LSE-AAA-320-RE is sourced from the original manufacturer or authorized distributors?

All MLX90290LSE-AAA-320-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-320-RE meets industry standards.

7.What is the process for return or replacement of MLX90290LSE-AAA-320-RE?

All MLX90290LSE-AAA-320-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90290LSE-AAA-320-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-320-RE part is unused and in its original packaging.

Return procedure for MLX90290LSE-AAA-320-RE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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