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Melexis Technologies NV MLX90340LGO-AAA-000-RE
- Part No.:
- MLX90340LGO-AAA-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90340LGO-AAA-000-RE.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MLX90340LGO-AAA-000-RE from Melexis is a dual-die, fully redundant Triaxis® Hall-effect absolute position sensor in TSSOP-16 package, delivering 12-bit analog or PWM output with ±0.5° angular accuracy over -40°C to +150°C, programmable 4- or 17-point linear transfer characteristic, and integrated self-diagnostic capability for heavy-duty rotary and linear position sensing.
For engineers reviewing the MLX90340LGO-AAA-000-RE datasheet, pinout, applications, or equivalent options, this page provides verified functional architecture, validated TSSOP-16 terminal mapping, confirmed thermal accuracy vs. flux density variation, and real-world industrial positioning use cases requiring redundancy and ratiometric output stability.
Technical Context
The MLX90340LGO-AAA-000-RE integrates two independent Triaxis® sensor dies (Bx/By/Bz orthogonal & parallel field sensing) on a single TSSOP-16 substrate, each with dedicated VDD/VSS/VDIG/OUT and test infrastructure. Its DSP-based angle calculation uses CoRDiC transformation of raw Hall voltages (VX/VY/VZ) to derive magnetic angle α = arctan(V₂/V₁), enabling intrinsic compensation for flux density drift.
Output conditioning includes programmable offset, gain, clamping, and multi-point linearization (4-pt LNR or 17-pt PWL) stored in ECC-protected EEPROM. The device supports both ratiometric analog output (12-bit DAC + buffer) and digital PWM output (12-bit resolution), with diagnostics covering supply monitoring, EEPROM integrity, and front-end signal validity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | -40°C to +150°C - Enables direct mounting in engine compartments, gearboxes, and hydraulic actuators without external thermal shielding. |
| Angular Accuracy | ±0.5° typical - Achieved via dual-die redundancy and flux-density-independent angle computation, reducing calibration dependency on magnet placement tolerances. |
| Output Resolution | 12-bit (analog or PWM) - Delivers 0.0879°/LSB granularity over 360°, sufficient for high-fidelity throttle, steering, or valve position feedback. |
| Transfer Characteristic | Programmable 4-point or 17-point piecewise-linear - Allows precise matching to non-uniform mechanical motion profiles (e.g., camshaft lift curves). |
| Supply Voltage Range | 4.5 V to 24 V - Supports direct connection to automotive 12 V battery rails with reverse-polarity protection up to -12 V. |
| Magnetic Sensitivity | ±1 T full-scale - Compatible with standard NdFeB magnets at air gaps up to 4 mm, eliminating need for high-cost rare-earth magnet arrays. |
| Diagnostic Coverage | EEPROM integrity, supply rail monitoring, front-end signal validity - Provides ASIL-B–compatible fault detection without external watchdog circuitry. |
Pinout & Package
TSSOP-16 package with dual-die redundancy: two independent sensor channels (Die 1 and Die 2), each with dedicated power, ground, regulator, and output pins. Unused pins (Not Used1/2, Test0/1/2_1/2) must be tied to ground per EMC guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VDIG1 / VDIG2 | Internal 3.3 V regulator outputs - Power internal logic and ADC/DAC; require 100 nF decoupling per pin to VSS. |
| 2, 10 | VSS_1 / VSS_2 | Dedicated ground returns for each die - Prevents crosstalk between redundant channels; must be low-inductance paths to system ground plane. |
| 3, 11 | VDD_1 / VDD_2 | Independent 4.5–24 V supply inputs per die - Enables fault-isolated operation; failure on one supply does not disable second channel. |
| 6, 15 | OUT2 / OUT1 | Independent analog/PWM outputs per die - Supports dual-signal validation (e.g., compare outputs for disagreement detection in safety-critical systems). |
| 4, 12, 13, 16, 5, 8 | Test0_1 / Test0_2 / Test2_1 / Test1_1 / Test2_2 / Test1_2 | Factory test access points - Not user-accessible; left unconnected or grounded in final design per datasheet EMC recommendation. |
| 7, 14 | Not Used2 / Not Used1 | No internal connection - Must be tied to ground to minimize EMI susceptibility and ensure stable reference potential. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die redundancy (TSSOP-16) | Two physically independent Triaxis® sensor ICs on one package enable hardware-level fault tolerance for ISO 26262 ASIL B/C applications without external voting logic. |
| Triaxis® 3D field sensing | Simultaneous measurement of Bx, By, Bz components allows absolute angle extraction from rotating or linearly moving magnets without mechanical cams or gears. |
| Programmable 17-point PWL transfer | Enables exact linearization across complex mechanical stroke profiles (e.g., suspension travel or brake pedal displacement) using equidistant angle ranges from 65° to 360°. |
| Intrinsic thermal accuracy | Compensates for flux density drift over temperature without external temperature sensors, achieving 10-bit thermal accuracy (±0.1% FS) across full operating range. |
| Ratiometric analog output | Output scales directly with VDD, eliminating sensitivity to supply rail fluctuations in noisy automotive environments where 12 V battery voltage varies from 9 V to 16 V. |
Applications
| Heavy-Duty Rotary Position | Industrial Linear Stroke |
|---|---|
Use Scenario: Monitoring crankshaft or camshaft angular position in off-highway diesel engines under extreme vibration and thermal cycling. IC Role / Device Role / Timing Role: Absolute angle encoder providing real-time 0–360° position data to ECU for fuel injection timing and valve phasing control. Use Value: Dual-die redundancy ensures continuous operation even if one sensor path fails, meeting ASIL-B diagnostic coverage requirements for Tier 1 powertrain modules. |
Use Scenario: Measuring piston rod extension in hydraulic cylinders used in construction equipment boom arms and excavator buckets. IC Role / Device Role / Timing Role: Non-contacting linear position transducer converting stroke length into ratiometric analog voltage proportional to displacement. Use Value: 12-bit resolution and ±0.5° angular accuracy translate to sub-millimeter linearity over 200 mm stroke, eliminating wear-prone potentiometers. |
| Redundant Throttle Actuation | Electric Power Steering (EPS) |
Use Scenario: Dual-signal feedback for drive-by-wire throttle bodies in commercial vehicles where single-point failure must be detected and mitigated. IC Role / Device Role / Timing Role: Redundant absolute position sensor feeding independent signals to main and backup ECUs for cross-checking and fail-safe torque reduction. Use Value: Independent VDD/VSS/VDIG/OUT per die enables true electrical isolation between channels, preventing common-cause faults from disabling both outputs. |
Use Scenario: Torque-angle sensing in EPS column-assist modules where motor position must be tracked with minimal latency and high EMC immunity. IC Role / Device Role / Timing Role: High-bandwidth magnetic angle sensor interfacing directly with EPS MCU via analog output, supporting <100 µs latency for real-time assist control. Use Value: Built-in self-diagnostics (EEPROM, supply, signal validity) reduce need for external monitoring circuits, lowering BOM cost and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90365KGO-ABA-000-RE | Single-die TSSOP-16 variant with identical pinout but no redundancy; 12-bit analog/PWM, same -40°C to +150°C rating. | Lacks dual-die fault tolerance; suitable for non-safety-critical industrial encoders where cost is prioritized over ASIL compliance. | Select when redundancy is unnecessary and BOM cost reduction is critical; requires external diagnostics for functional safety. |
| AMS AS5055A-BQFT | Single-die 14-bit contactless angle sensor in QFN-24; SPI interface only, no analog/PWM output; max temp +125°C. | Requires external MCU for signal processing and lacks ratiometric output; limited to lower-temperature industrial automation. | Choose for higher-resolution SPI-based systems needing digital-only interface and compact footprint, but not for automotive or redundant analog feedback. |
Compared with MLX90340LGO-AAA-000-RE, the MLX90365 offers identical packaging and temperature range but sacrifices redundancy for cost, while the AS5055A demands external processing and cannot replace the ratiometric analog output or dual-die safety architecture.
Availability
MLX90340LGO-AAA-000-RE is available at Aetrix Electronics and suitable for heavy-duty rotary position sensing, industrial linear stroke measurement, and redundant throttle actuation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MLX90340LGO-AAA-000-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 driver ICs for automotive, industrial, and medical applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90340 belongs to Melexis' Triaxis® absolute position sensor family, designed specifically for robust, non-contacting angular and linear position measurement in harsh environments where reliability, redundancy, and thermal stability are mandatory.
FAQ
What is the primary sensing principle used by the MLX90340LGO-AAA-000-RE?
The MLX90340LGO-AAA-000-RE employs Melexis' proprietary Triaxis® Hall technology, detecting all three orthogonal components (Bx, By, Bz) of magnetic flux density simultaneously. This enables true 3D field vector analysis and absolute angle calculation via CoRDiC-based arctangent computation, independent of magnet strength or air gap variations.
Does the MLX90340LGO-AAA-000-RE support both analog and PWM output modes?
Yes, the MLX90340LGO-AAA-000-RE supports selectable ratiometric analog output (12-bit DAC buffered) and digital PWM output (12-bit resolution), both programmable via EEPROM. Output mode selection is configured during programming using Melexis PTC-04 tools and does not require hardware changes.
How is redundancy implemented in the MLX90340LGO-AAA-000-RE?
Redundancy in the MLX90340LGO-AAA-000-RE is achieved through two physically independent Triaxis® sensor dies in a single TSSOP-16 package, each with dedicated VDD, VSS, VDIG, and OUT pins. This architecture enables true hardware-level fault isolation, allowing system-level comparison of outputs for disagreement detection in safety-critical applications.
What is the maximum programmable angular range for the MLX90340LGO-AAA-000-RE's 17-point PWL transfer function?
The MLX90340LGO-AAA-000-RE supports 17-point piecewise-linear (PWL) calibration across 16 selectable angular ranges from 65° to 360°, with programmable origin point. This allows precise linearization of mechanical motion profiles such as cam lobe lift or suspension kinematics without external lookup tables.
Can the MLX90340LGO-AAA-000-RE operate directly from a 12 V automotive battery?
Yes, the MLX90340LGO-AAA-000-RE operates over 4.5 V to 24 V supply range and includes reverse-voltage protection up to -12 V. Its ratiometric analog output scales with VDD, making it compatible with unregulated 12 V battery rails that vary from 9 V (cranking) to 16 V (charging), without external regulation.
MLX90340LGO-AAA-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage, PWM
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
MLX90340LGO-AAA-000-RE FAQ
1.How can I place an order for MLX90340LGO-AAA-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340LGO-AAA-000-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 MLX90340LGO-AAA-000-RE reliable?
The price and inventory of MLX90340LGO-AAA-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90340LGO-AAA-000-RE is usually 5 days.
3.What payment methods are accepted for MLX90340LGO-AAA-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340LGO-AAA-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340LGO-AAA-000-RE?
MLX90340LGO-AAA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340LGO-AAA-000-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 MLX90340LGO-AAA-000-RE?
For technical support, including MLX90340LGO-AAA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340LGO-AAA-000-RE requirements.
6.How does Aetrix verify that MLX90340LGO-AAA-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90340LGO-AAA-000-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 MLX90340LGO-AAA-000-RE meets industry standards.
7.What is the process for return or replacement of MLX90340LGO-AAA-000-RE?
All MLX90340LGO-AAA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340LGO-AAA-000-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 MLX90340LGO-AAA-000-RE part is unused and in its original packaging.
Return procedure for MLX90340LGO-AAA-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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