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Melexis Technologies NV MLX90290LUA-AAA-621-CR
- Part No.:
- MLX90290LUA-AAA-621-CR
- Manufacturer:
- Melexis Technologies NV
- Category:
- Linear, Compass (ICs)
- Package:
- TO-226-3, TO-92-3 Short Body
- Datasheet:
-
MLX90290LUA-AAA-621-CR.pdf
- Description:
- SENSOR HALL LINEAR ANALOG TO92
- Quantity:
- Payment:
- Shipping:
Inventory:3,404
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Product details
Overview
MLX90290LUA-AAA-621-CR from Melexis is a second-generation linear Hall-effect sensor IC in TO-92-3L (UA) package, designed for high-speed, ratiometric analog position and current sensing. It delivers 31.25 mV/mT sensitivity at 5 V supply, ±2000 ppm/°C magnet thermal drift compensation, and operates across –40°C to +150°C with AEC-Q100 qualification for automotive use.
For engineers reviewing the MLX90290LUA-AAA-621-CR datasheet, pinout, applications, or equivalent options, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternatives - all aligned to the UA-package variant with 2.54 mm lead pitch, 5 V nominal supply, Y=2/Z=2 factory trim, and carton tape on reel packaging.
Technical Context
The MLX90290LUA-AAA-621-CR integrates a CMOS Hall plate, advanced offset cancellation circuitry, and a ratiometric analog output driver in a single die. Its quiescent output voltage is precisely 50% of VDD (2.5 V at 5 V), enabling robust zero-field referencing in noisy environments.
It features internal chopping at 900 kHz for offset and drift suppression, supports signal bandwidth up to 30 kHz (UA package), and includes factory-programmed magnet thermal compensation (Z=2, +2000 ppm/°C) optimized for ferrite magnets - critical for motor commutation and rotary position feedback where temperature-induced field drift must be actively corrected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensitivity | 31.25 mV/mT @ 5 V - enables high-resolution detection of small magnetic field changes in compact actuator or current-sensing layouts. |
| Magnet TCS | +2000 ppm/°C - factory-trimmed compensation for ferrite magnet thermal drift, maintaining linearity over full –40°C to +150°C operating range. |
| Supply Voltage | 5.0 V ±10% - compatible with standard automotive 5 V rails; ratiometric output ensures proportional scaling with supply variation. |
| Output Type | Analog ratiometric voltage - 0.25 V to 4.75 V swing (±2.25 V around 2.5 V quiescent), directly interfaceable with 12-bit ADCs without external amplification. |
| Bandwidth | 30 kHz (–3 dB, UA package) - supports fast-response applications like BLDC motor commutation up to ~180 kRPM electrical speed. |
| Start-up Time | 40–70 µs - enables micro-power gating in battery-operated systems requiring rapid wake-on-field detection. |
| ESD Rating | 8 kV HBM - meets automotive robustness requirements for assembly and in-vehicle ESD immunity. |
Pinout & Package
MLX90290LUA-AAA-621-CR uses the TO-92-3L (UA) through-hole package with 2.54 mm lead pitch (trim-and-form configuration). Package dimensions: 3.0 × 4.1 × 14.5 mm (L × W × H), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Power supply input | Accepts 3.15–5.5 V; requires ≥0.1 µF bypass capacitor placed adjacent to pin for stable operation and noise immunity. |
| 2 (GND) | Ground reference | Low-impedance return path for supply and output; must be connected before VDD during power-up to ensure proper POR behavior. |
| 3 (OUT) | Analog output | Ratiometric voltage output (0.25–4.75 V at 5 V); drives loads up to 1 mA; supports direct connection to MCU ADC with no external conditioning. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed sensitivity & TCS | Y=2 (31.25 mV/mT) and Z=2 (+2000 ppm/°C) are laser-trimmed at wafer level - eliminates post-assembly calibration and reduces BOM count in production. |
| High-speed chopping architecture | 900 kHz chopping frequency suppresses 1/f noise and offsets - achieves ±1.5% linearity and ±5% sensitivity accuracy over temperature without external filtering. |
| Ratiometric output | Output scales linearly with VDD - removes dependency on precision voltage references and simplifies system-level error budgeting in varying supply conditions. |
| AEC-Q100 qualified | Qualified to Grade 0 (–40°C to +150°C) - validated for under-hood automotive applications including transmission sensors and EPS motor feedback. |
| Fast power-on time | Settles within 70 µs after VDD reaches 3.15 V - enables low-duty-cycle wake-up schemes in energy-constrained systems like smart valves and IoT actuators. |
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 closed-loop position control. Use Value: Delivers ±1.5% linearity and 30 kHz bandwidth - enabling sub-millimeter resolution and real-time response in safety-critical drivetrain subsystems. |
Use Scenario: Angular feedback for brushless DC motor commutation in electric power steering (EPS). IC Role / Device Role / Timing Role: Ratiometric analog output providing precise rotor angle estimation synchronized to motor electrical cycle. Use Value: Factory-compensated +2000 ppm/°C TCS maintains <±2° angular error over –40°C to +150°C - eliminating need for software lookup tables. |
| Current Sensing | Motor Commutation |
|
Use Scenario: Isolated DC bus current monitoring in 12 V automotive battery management modules. IC Role / Device Role / Timing Role: Measures field from conductor-mounted ferrite core; outputs voltage scaled to current magnitude. Use Value: 31.25 mV/mT sensitivity at 5 V enables 10 A full-scale detection with <1% gain error - supporting ASIL-B functional safety goals. |
Use Scenario: Six-step commutation timing in HVAC blower motors using back-EMF sensing via embedded magnets. IC Role / Device Role / Timing Role: Provides analog zero-crossing reference for electronic switch timing in trapezoidal drive schemes. Use Value: 40–70 µs power-on time allows synchronization with PWM gate drivers - minimizing dead-time uncertainty and torque ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear Hall sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Allegro A1308LLHLT-T | TO-92 package, 2.5 mV/G (25 mV/mT) sensitivity, no factory TCS trim - requires external compensation network. | Lacks integrated magnet thermal drift correction; suitable only for ambient-stable applications like industrial encoders. | Select when cost sensitivity outweighs thermal performance; verify system-level drift tolerance before substitution. |
| TDK NXP TLE4924C | SOIC-8 package, digital PWM output, 10-bit resolution, fixed 2.5 V reference - not ratiometric or analog voltage output. | Designed for digital interface systems; incompatible with analog ADC inputs without external DAC or comparator. | Choose only if migrating to digital signal chain; requires PCB redesign due to different footprint and interface protocol. |
Compared with MLX90290LUA-AAA-621-CR, the A1308 offers lower integration but broader vendor support, while the TLE4924C trades analog flexibility for digital robustness - neither matches the factory-trimmed +2000 ppm/°C TCS and TO-92 ratiometric analog output of the MLX90290LUA-AAA-621-CR in high-temperature automotive sensing.
Availability
MLX90290LUA-AAA-621-CR is available at Aetrix Electronics and suitable for automotive position sensing, motor commutation, and current monitoring applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90290LUA-AAA-621-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 intelligent sensors and wireless RF solutions for automotive, industrial, and consumer markets, with over 30 years of Hall-effect sensor innovation.
The MLX90290 product line targets high-reliability, factory-calibrated linear Hall sensing in harsh environments - specifically engineered for automotive-grade position, current, and speed feedback where thermal stability and long-term repeatability are critical.
FAQ
What is the exact sensitivity and thermal coefficient of MLX90290LUA-AAA-621-CR?
The MLX90290LUA-AAA-621-CR has a factory-trimmed sensitivity of 31.25 mV/mT at 5 V and a magnet thermal coefficient (TCS) of +2000 ppm/°C (Z=2), optimized for ferrite magnets. This is confirmed in Table 1 and Section 4 of the datasheet, with option code "621" explicitly mapping to Y=2 (sensitivity) and Z=2 (TCS).
Does MLX90290LUA-AAA-621-CR require external components for basic operation?
Yes - a minimum 0.1 µF ceramic bypass capacitor (C1) must be placed between VDD and GND, as close as possible to the MLX90290LUA-AAA-621-CR pins. No additional resistors or capacitors are needed for the output unless operating in high-noise environments, per Figure 11.2 in the datasheet.
Is MLX90290LUA-AAA-621-CR pin-compatible with other MLX90290 variants in TO-92 packages?
Yes - all MLX90290 UA (TO-92-3L) variants share identical pinout (VDD–GND–OUT) and mechanical footprint. The MLX90290LUA-AAA-621-CR uses the same 2.54 mm lead pitch configuration as specified in Section 12.2.1, ensuring drop-in compatibility with other UA-packaged versions.
What does the "CR" packing code mean for MLX90290LUA-AAA-621-CR?
The "CR" suffix indicates Carton Tape on Reel packaging - a radial tape format optimized for automated through-hole insertion. As noted in Section 4, this avoids lead coplanarity issues seen in bulk (BU) packaging and is recommended for fully automatic assembly processes.
Can MLX90290LUA-AAA-621-CR operate from a 3.3 V supply?
No - the "6" in the option code "621" specifies 5 V nominal supply (per Table "Package Options" on Page 4). While the absolute maximum rating allows down to 3.15 V, the device was trimmed and characterized at 5 V; using 3.3 V would reduce sensitivity to ~20.625 mV/mT and invalidate TCS calibration.
MLX90290LUA-AAA-621-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:
- 3.15V ~ 5.5V
- Current - Supply (Max):
- 8mA
- Current - Output (Max):
- 20mA
- Resolution:
- -
- Bandwidth:
- 30kHz
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Features:
- Programmable, Temperature Compensated
- Supplier Device Package:
- TO-92-3
- Mounting Type:
- Through Hole
MLX90290LUA-AAA-621-CR FAQ
1.How can I place an order for MLX90290LUA-AAA-621-CR through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90290LUA-AAA-621-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-621-CR reliable?
The price and inventory of MLX90290LUA-AAA-621-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-621-CR is usually 5 days.
3.What payment methods are accepted for MLX90290LUA-AAA-621-CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90290LUA-AAA-621-CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90290LUA-AAA-621-CR?
MLX90290LUA-AAA-621-CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90290LUA-AAA-621-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-621-CR?
For technical support, including MLX90290LUA-AAA-621-CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90290LUA-AAA-621-CR requirements.
6.How does Aetrix verify that MLX90290LUA-AAA-621-CR is sourced from the original manufacturer or authorized distributors?
All MLX90290LUA-AAA-621-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-621-CR meets industry standards.
7.What is the process for return or replacement of MLX90290LUA-AAA-621-CR?
All MLX90290LUA-AAA-621-CR units undergo pre-shipment inspection (PSI). If there is an issue with MLX90290LUA-AAA-621-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-621-CR part is unused and in its original packaging.
Return procedure for MLX90290LUA-AAA-621-CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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