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Melexis Technologies NV MLX90290LUA-AAA-521-CR
- Part No.:
- MLX90290LUA-AAA-521-CR
- Manufacturer:
- Melexis Technologies NV
- Category:
- Linear, Compass (ICs)
- Package:
- TO-226-3, TO-92-3 Short Body
- Datasheet:
-
MLX90290LUA-AAA-521-CR.pdf
- Description:
- HI-SPEED PROGRAMMABLE LINEAR HAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,513
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Product details
Overview
MLX90290LUA-AAA-521-CR 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 with 500 ppm/°C magnet thermal drift compensation. It features ratiometric analog output (50% VDD quiescent level), ±1.5% linearity, and AEC-Q100 qualification for automotive position sensing in motor commutation and rotary encoders.
For engineers reviewing the MLX90290LUA-AAA-521-CR datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, TO-92 pin mapping, automotive-grade thermal drift compensation, and direct alternatives for linear magnetic field measurement in harsh environments.
Technical Context
The MLX90290LUA-AAA-521-CR integrates a Hall plate, chopper-stabilized offset cancellation circuitry, voltage regulator, and analog output driver in mixed-signal CMOS. Its 900 kHz chopping frequency enables high-accuracy DC field measurement while suppressing 1/f noise and thermal drift.
Output voltage follows VOUT = VDD × (VOQREL + SREL × B), where VOQREL = 0.5 (±1%), SREL is factory-trimmed to 31.25 mV/mT @ 5 V, and TCS = 500 ppm/°C compensates ferrite magnet drift across –40°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5 V ±10% - supports direct connection to automotive 5 V rails without external regulation |
| Sensitivity | 31.25 mV/mT @ 5 V - provides high-resolution analog output for ±40 mT field range with <1.5% linearity error |
| Thermal Drift Comp. | 500 ppm/°C - actively compensates magnet temperature coefficient for stable position feedback over full automotive temp range |
| Output Quiescent Level | 50% of VDD (±1%) - enables single-supply ratiometric readout with ADC reference tied to same VDD |
| Bandwidth | 30 kHz (–3 dB) - supports fast response in motor commutation timing up to 1800 RPM at 2-pole pairs |
| Power-On Time | 40–70 µs - ensures rapid system wake-up in micro-power applications with power gating |
| AEC-Q100 Grade | Grade 0 (–40°C to +150°C) - qualified for under-hood automotive use including engine control and transmission sensors |
Pinout & Package
MLX90290LUA-AAA-521-CR 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 centered beneath lead 2 (GND) per datasheet Figure 12.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | 5 V supply input - requires ≥0.1 µF ceramic bypass capacitor placed adjacent to pin for stable operation |
| 2 | GND | Ground reference - serves as mechanical and electrical reference plane; Hall plate located directly beneath this pin |
| 3 | OUT | Analog voltage output - ratiometric, 0.25–4.75 V swing for ±40 mT field, drives 5 kΩ–∞ load with ≤100 nF capacitance |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed sensitivity | 31.25 mV/mT trimmed at 5 V - eliminates post-manufacture calibration for production line efficiency |
| Magnet thermal drift compensation | 500 ppm/°C TCS - matches typical ferrite magnet drift, maintaining position accuracy without external lookup tables |
| Chopper-stabilized architecture | 900 kHz chopping frequency - suppresses offset drift to <±25 mV over temperature and lifetime |
| Fast power-on response | ≤70 µs wake-up time - enables duty-cycled operation in battery-powered systems to reduce average current to ~5 mA |
| AEC-Q100 qualification | Grade 0 (–40°C to +150°C) - validated for automotive engine bay, transmission, and EPS applications |
Applications
| Linear Position Sensing | Rotary Position Sensing |
|---|---|
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 flux change into proportional analog voltage for ADC sampling. Use Value: Delivers ±1.5% linearity and 500 ppm/°C thermal compensation to maintain sub-degree angular accuracy over full vehicle temperature range. | Use Scenario: Commutation angle detection in BLDC motors for electric power steering (EPS) and HVAC blowers. IC Role / Device Role / Timing Role: Analog position feedback element providing real-time rotor angle to motor controller for precise six-step commutation. Use Value: 30 kHz bandwidth and 70 µs power-on time support high-speed motor operation up to 10,000 RPM with minimal latency. |
| Current Sensing | Motor Resolver Backup |
Use Scenario: Isolated DC current monitoring in 12 V battery management systems using a concentrator core. IC Role / Device Role / Timing Role: Magnetic field transducer measuring flux generated by conductor current, outputting ratiometric voltage. Use Value: Ratiometric output (50% VDD quiescent) and ±2.5% sensitivity ratiometry ensure accuracy independent of supply rail variation. | Use Scenario: Redundant angular position sensing in safety-critical EPS systems where resolver failure must be detected. IC Role / Device Role / Timing Role: Secondary analog position sensor cross-checking resolver output during startup and fault conditions. Use Value: AEC-Q100 Grade 0 qualification and 165 °C max junction temperature enable co-location with resolver near motor windings. |
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-CR | No thermal drift compensation (0 ppm/°C TCS) | Suitable only for current sensing or environments with stable magnets/temperature | Select when magnet thermal drift is negligible or compensated digitally; lower cost alternative without analog TCS |
| Allegro A1308LLHLT-T | 2.5–5.5 V supply, 2.5 mV/G sensitivity (25 mV/mT), no factory TCS trim, SOIC-8 package | Requires external compensation circuitry for automotive-grade thermal stability | Choose for legacy SOIC footprint compatibility; requires additional design effort for thermal drift mitigation |
Compared with MLX90290LUA-AAA-521-CR, the -520-CR variant omits magnet thermal compensation but retains identical sensitivity and package, while the A1308 requires external components to match the integrated 500 ppm/°C compensation and TO-92 form factor of MLX90290LUA-AAA-521-CR.
Availability
MLX90290LUA-AAA-521-CR is available at Aetrix Electronics and suitable for automotive position sensing, motor commutation, and current measurement requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MLX90290LUA-AAA-521-CR 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 customer base.
The MLX90290 product line delivers factory-trimmed linear Hall sensors optimized for high-accuracy, high-reliability position and current sensing in automotive powertrain, chassis, and electrification systems.
FAQ
What is the supply voltage range for MLX90290LUA-AAA-521-CR?
The MLX90290LUA-AAA-521-CR operates from 4.5 V to 5.5 V (5 V ±10%). It is not rated for 3.3 V operation - this variant is specifically trimmed and tested for 5 V nominal supply, with internal regulation supporting stable performance across the specified range.
Does MLX90290LUA-AAA-521-CR require an external bypass capacitor?
Yes, MLX90290LUA-AAA-521-CR requires a minimum 0.1 µF ceramic capacitor between VDD and GND, placed as close as possible to pins 1 and 2. This is mandatory per datasheet Section 11.1 to ensure stable regulation and prevent oscillation or start-up failure.
What does the "521" in MLX90290LUA-AAA-521-CR signify?
In MLX90290LUA-AAA-521-CR, "5" indicates 5 V supply, "2" selects 31.25 mV/mT sensitivity, and "1" sets 500 ppm/°C magnet thermal drift compensation (TCS). The "CR" denotes carton tape on reel packing for TO-92-3L devices.
Is MLX90290LUA-AAA-521-CR pin-compatible with other MLX90290 variants in UA package?
Yes, all MLX90290 variants in UA (TO-92-3L) package share identical pinout: Pin 1 = VDD, Pin 2 = GND, Pin 3 = OUT. Mechanical dimensions and lead forming (standard 1.27 mm pitch) are consistent across UA-coded parts, including MLX90290LUA-AAA-521-CR.
What is the maximum magnetic field the MLX90290LUA-AAA-521-CR can measure linearly?
MLX90290LUA-AAA-521-CR maintains ±1.5% linearity up to ±40 mT (±400 Gauss) at 25°C. Beyond this, output remains monotonic but deviates from ideal linearity; absolute maximum field rating is >1000 mT per Absolute Maximum Ratings table.
MLX90290LUA-AAA-521-CR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 Short Body
- Packaging:
- Tape & Reel (TR)
- 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-CR FAQ
1.How can I place an order for MLX90290LUA-AAA-521-CR through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90290LUA-AAA-521-CR 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-CR reliable?
The price and inventory of MLX90290LUA-AAA-521-CR 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-CR is usually 5 days.
3.What payment methods are accepted for MLX90290LUA-AAA-521-CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90290LUA-AAA-521-CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90290LUA-AAA-521-CR?
MLX90290LUA-AAA-521-CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90290LUA-AAA-521-CR 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-CR?
For technical support, including MLX90290LUA-AAA-521-CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90290LUA-AAA-521-CR requirements.
6.How does Aetrix verify that MLX90290LUA-AAA-521-CR is sourced from the original manufacturer or authorized distributors?
All MLX90290LUA-AAA-521-CR 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-CR meets industry standards.
7.What is the process for return or replacement of MLX90290LUA-AAA-521-CR?
All MLX90290LUA-AAA-521-CR units undergo pre-shipment inspection (PSI). If there is an issue with MLX90290LUA-AAA-521-CR, 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-CR part is unused and in its original packaging.
Return procedure for MLX90290LUA-AAA-521-CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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