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Melexis Technologies NV MLX90290LUA-AAA-521-CA
- Part No.:
- MLX90290LUA-AAA-521-CA
- Manufacturer:
- Melexis Technologies NV
- Category:
- Linear, Compass (ICs)
- Package:
- TO-226-3, TO-92-3 Short Body
- Datasheet:
-
MLX90290LUA-AAA-521-CA.pdf
- Description:
- HI-SPEED PROGRAMMABLE LINEAR HAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,889
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Product details
Overview
MLX90290LUA-AAA-521-CA from Melexis is a factory-trimmed linear Hall-effect sensor in TO-92-3L (UA) package, operating from 5 V ±10%, delivering 31.25 mV/mT sensitivity and 500 ppm/°C magnet thermal drift compensation. It features ratiometric analog output (50% VDD quiescent level), 15 kHz signal bandwidth, and AEC-Q100 Grade 0 qualification for automotive position sensing.
For engineers reviewing the MLX90290LUA-AAA-521-CA datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, TO-92 pin mapping, automotive-grade thermal compensation behavior, and real-world linear/rotary position use cases - all confirmed against Revision 005 (21 Jun 2021) of the official Melexis datasheet.
Technical Context
The MLX90290LUA-AAA-521-CA integrates a Hall plate, chopper-stabilized amplifier, voltage regulator, and analog output driver in mixed-signal CMOS. Its output voltage follows VOUT = VDD × (VOQREL + SREL × B), where VOQREL = 0.5 (±1%) and SREL is factory-trimmed to 31.25 mV/mT at 5 V with 500 ppm/°C TCS for ferrite magnet compensation.
It employs 900 kHz chopping frequency for offset cancellation, achieves ≤70 µs power-on time, and maintains ±1.5% linearity and ±1.5% symmetry over full magnetic range. The device supports load resistances from 5 kΩ to infinity and operates across −40°C to +150°C with 8 kV HBM ESD rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensitivity | 31.25 mV/mT @ 5 V - enables precise detection of small magnetic field changes in position feedback loops |
| Thermal Coefficient (TCS) | 500 ppm/°C - compensates ferrite magnet drift across −40°C to +150°C without external circuitry |
| Supply Voltage | 5 V ±10% - compatible with standard automotive 5 V rails; ratiometric output eliminates supply variation errors |
| Signal Bandwidth | 15 kHz - supports high-speed rotary position sensing up to ~900 RPM with <5° phase lag |
| Quiescent Output | 2.5 V @ 5 V supply - centered rail-to-rail analog output simplifies ADC interfacing and fault detection |
| Operating Temperature | −40°C to +150°C - qualified per AEC-Q100 Grade 0 for under-hood automotive applications |
| Power-On Time | ≤70 µs - enables fast wake-up in micro-power systems with periodic magnetic sampling |
Pinout & Package
MLX90290LUA-AAA-521-CA uses the TO-92-3L (UA) through-hole package: 3-pin, 1.27 mm lead pitch, 14–15 mm body length, RoHS-compliant, with Hall plate located 1.45 mm from lead plane and centered between pins 1 and 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Supply input | Accepts 5 V ±10%; internal regulator powers analog core; requires ≥0.1 µF bypass capacitor |
| 2 (GND) | Ground reference | Return path for supply and output; must be low-impedance to minimize noise coupling into Hall plate |
| 3 (OUT) | Analog output | Ratiometric voltage output (0.25–4.75 V at 5 V supply); drives loads ≥5 kΩ; no external pull-up required |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed sensitivity & TCS | 31.25 mV/mT and 500 ppm/°C set during wafer trim - eliminates post-assembly calibration |
| Chopper-stabilized architecture | 900 kHz chopping frequency - reduces 1/f noise and offsets to <1.5% linearity error |
| Ratiometric output | VOUT proportional to both B-field and VDD - rejects supply ripple and improves system-level accuracy |
| Fast power-on response | ≤70 µs settling time - supports duty-cycled operation in battery-powered position sensors |
| AEC-Q100 Grade 0 qualification | Validated for −40°C to +150°C operation - meets automotive engine compartment reliability requirements |
Applications
| Linear Position Sensing | Rotary Position Sensing |
|---|---|
Use Scenario: Non-contact measurement of throttle valve or suspension travel in automotive ECUs. IC Role / Device Role / Timing Role: Linear Hall sensor converting magnetic flux density into proportional analog voltage for ADC sampling. Use Value: 31.25 mV/mT sensitivity and 500 ppm/°C TCS enable ±0.5 mm repeatability over full temperature range without recalibration. |
Use Scenario: Angular position detection in EPS motor rotor or steering column assemblies. IC Role / Device Role / Timing Role: Analog position transducer feeding closed-loop commutation or torque estimation algorithms. Use Value: 15 kHz bandwidth and <5° phase shift at 1 kHz support real-time control of motors rotating up to 900 RPM. |
| Current Sensing | Motor Commutation |
Use Scenario: Isolated DC bus current monitoring in 12 V automotive subsystems using a ferrite-core concentrator. IC Role / Device Role / Timing Role: Magnetic field transducer measuring conductor-generated flux; output scaled to current via known geometry. Use Value: 500 ppm/°C TCS matches typical ferrite permeability drift, maintaining ±2% current accuracy from −40°C to +150°C. |
Use Scenario: Six-step commutation feedback in BLDC fans or pumps using back-EMF-free Hall latching. IC Role / Device Role / Timing Role: High-speed analog position resolver feeding comparator-based commutation logic. Use Value: ≤70 µs power-on time allows synchronization with PWM gate drivers, minimizing dead-time uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear Hall sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90290LUA-AAA-520-BU | Same 31.25 mV/mT sensitivity but 0 ppm/°C TCS - no magnet thermal compensation | Targeted for current sensing with stable magnets (e.g., NdFeB) or room-temperature industrial use | Select when magnet temperature stability is guaranteed and cost-sensitive bulk packaging is acceptable |
| MLX90290LUA-AAA-522-BU | Same 31.25 mV/mT sensitivity but 2000 ppm/°C TCS - higher compensation for low-coefficient magnets | Optimized for AlNiCo or specific ferrite grades requiring stronger thermal drift correction | Select only if magnet datasheet confirms >1500 ppm/°C drift; otherwise over-compensation degrades accuracy |
Compared with MLX90290LUA-AAA-521-CA, the -520-BU variant removes thermal compensation for lower-cost current sensing, while the -522-BU variant increases TCS for specialized magnet systems - neither offers drop-in replacement without revalidation of magnetic assembly thermal behavior.
Availability
MLX90290LUA-AAA-521-CA is available at Aetrix Electronics and suitable for automotive position sensing, industrial linear/rotary feedback, and motor control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90290LUA-AAA-521-CA 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 certification and global automotive Tier-1 design wins.
The MLX90290 product line delivers factory-trimmed linear Hall sensors for high-reliability position and current sensing in harsh environments, targeting automotive, industrial, and medical motion-control systems.
FAQ
What is the supply voltage range for MLX90290LUA-AAA-521-CA?
The MLX90290LUA-AAA-521-CA operates from 3.15 V to 5.5 V, but is configured for 5 V ±10% nominal supply per its ordering code. At 5 V, it delivers 31.25 mV/mT sensitivity and 500 ppm/°C thermal compensation. Operation below 3.15 V triggers reset behavior, and exceeding 5.5 V risks permanent damage per absolute maximum ratings.
How does the 500 ppm/°C TCS setting in MLX90290LUA-AAA-521-CA improve position accuracy?
The 500 ppm/°C TCS in MLX90290LUA-AAA-521-CA actively compensates for the thermal drift of common ferrite magnets used in automotive position assemblies. This ensures that sensitivity remains stable across −40°C to +150°C, maintaining ≤±1.5% total error without external calibration - critical for throttle or pedal position systems meeting ASIL-B requirements.
Can MLX90290LUA-AAA-521-CA be used with a 3.3 V supply?
No - MLX90290LUA-AAA-521-CA is factory-trimmed for 5 V operation (X=5 in ordering code). While the absolute maximum rating allows down to 3.15 V, the 31.25 mV/mT sensitivity and 500 ppm/°C TCS are calibrated at 5 V. Using 3.3 V would reduce sensitivity to ~20.6 mV/mT and invalidate thermal compensation, risking positional inaccuracy above 85°C.
What is the purpose of the "CA" packing form in MLX90290LUA-AAA-521-CA?
The "CA" (Carton Tape in Ammopack) packing form in MLX90290LUA-AAA-521-CA provides radial tape packaging optimized for automated through-hole insertion. Unlike bulk (BU) packaging, CA prevents lead pitch and coplanarity deviation caused by transport stress - ensuring reliable placement in high-volume automotive PCB assembly lines.
Does MLX90290LUA-AAA-521-CA require external filtering for EMC robustness?
MLX90290LUA-AAA-521-CA includes internal filtering tuned for 500 ppm/°C TCS (Z=1), providing 15 kHz bandwidth and 3.6° phase shift at 1 kHz. For harsh EMC environments (e.g., engine bays), Melexis recommends adding a 1–10 nF capacitor (C2) on the OUT pin and series resistor (Rs ≥ 50 Ω) near the connector - as shown in Figure 11.2 of the datasheet - to suppress high-frequency noise.
MLX90290LUA-AAA-521-CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Short Body
- Packaging:
- Canister
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Analog Voltage
- Sensing Range:
- -
- Voltage - Supply:
- 4.5V ~ 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:
- TO-92-3
- Mounting Type:
- Through Hole
MLX90290LUA-AAA-521-CA FAQ
1.How can I place an order for MLX90290LUA-AAA-521-CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90290LUA-AAA-521-CA 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 MLX90290LUA-AAA-521-CA reliable?
The price and inventory of MLX90290LUA-AAA-521-CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90290LUA-AAA-521-CA is usually 5 days.
3.What payment methods are accepted for MLX90290LUA-AAA-521-CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90290LUA-AAA-521-CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90290LUA-AAA-521-CA?
MLX90290LUA-AAA-521-CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90290LUA-AAA-521-CA 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 MLX90290LUA-AAA-521-CA?
For technical support, including MLX90290LUA-AAA-521-CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90290LUA-AAA-521-CA requirements.
6.How does Aetrix verify that MLX90290LUA-AAA-521-CA is sourced from the original manufacturer or authorized distributors?
All MLX90290LUA-AAA-521-CA 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 MLX90290LUA-AAA-521-CA meets industry standards.
7.What is the process for return or replacement of MLX90290LUA-AAA-521-CA?
All MLX90290LUA-AAA-521-CA units undergo pre-shipment inspection (PSI). If there is an issue with MLX90290LUA-AAA-521-CA, 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 MLX90290LUA-AAA-521-CA part is unused and in its original packaging.
Return procedure for MLX90290LUA-AAA-521-CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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