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Melexis Technologies NV MLX90340SDC-AAA-300-SP
- Part No.:
- MLX90340SDC-AAA-300-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340SDC-AAA-300-SP.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,173
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Product details
Overview
MLX90340SDC-AAA-300-SP from Melexis is a monolithic Triaxis® Hall-effect IC for absolute rotary and linear position sensing, delivering 12-bit analog output with 180° pre-programmed transfer function (80%VDD/180°), ±0.5° angular accuracy over temperature, and operation from −40°C to +85°C in SOIC-8 package. It replaces contact potentiometers in industrial valve control, motor commutation feedback, and throttle position sensing.
For engineers reviewing the MLX90340SDC-AAA-300-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, programmable analog/PWM output behavior, thermal accuracy data, and direct alternatives for non-contacting position sensing designs requiring 180° range and ratiometric analog interface.
Technical Context
The MLX90340SDC-AAA-300-SP integrates three orthogonal Hall plates (Bx, By, Bz) with on-chip DSP-based angle computation using CoRDiC algorithms, enabling robust absolute position decoding without external magnets or complex signal conditioning. Its front-end features chopper-stabilized amplifiers and 15-bit ADC resolution feeding a 16-bit RISC microcontroller running mask-ROM firmware.
It supports two output modes: ratiometric analog (12-bit DAC buffered output) and PWM (12-bit resolution), both fully programmable via EEPROM. The AAA-300 option fixes the analog transfer characteristic to 80%VDD over 180° mechanical rotation with clamping, offset, and gain parameters pre-configured at factory-no field programming required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog (pre-programmed 180° range) - VOUT = 0.8 × VDD × (θ/180°) with clamping, no external calibration needed |
| Angular Accuracy | ±0.5° over full temperature range (−40°C to +85°C) - enables high-fidelity closed-loop control in industrial actuators |
| Resolution | 12-bit analog output (4096 steps over 180°) - delivers 0.044° step size for fine position discrimination |
| Supply Range | 4.5 V to 5.5 V - compatible with standard 5 V industrial logic rails and immune to brown-out in noisy environments |
| Operating Temp | −40°C to +85°C - certified for industrial-grade deployment in motor drives and hydraulic controls |
| Package | SOIC-8 (RoHS-compliant) - surface-mount footprint with proven thermal and mechanical reliability in vibration-prone systems |
| Magnetic Sensitivity | ±1 T max flux density - supports use with low-cost ferrite or NdFeB magnets at air gaps up to 4 mm |
Pinout & Package
MLX90340SDC-AAA-300-SP uses the SOIC-8 package (JEDEC MS-012AC), with 1.27 mm pitch, 4.9 mm × 3.9 mm body, and exposed die pad not electrically connected. Unused pins (Pin 4 "Not Used", Pins 2/3/6 "Test") must be tied to ground per EMC guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | 4.5–5.5 V main supply; internal reverse-voltage protection to −12 V |
| 2 - Test Input | Factory test node | No user connection; tie to GND for EMC compliance |
| 3 - Test | Factory test node | No user connection; tie to GND for EMC compliance |
| 4 - Not Used | Unbonded pad | Must be connected to VSS to minimize EMI coupling |
| 5 - OUT | Analog output | Ratiometric 0–0.8×VDD output scaled to 180° mechanical rotation |
| 6 - Test1 | Factory test node | No user connection; tie to GND for EMC compliance |
| 7 - VDIG | Digital regulator output | Internal 3.3 V supply for digital core; decouple with 100 nF capacitor to VSS |
| 8 - VSS | Ground reference | Primary return path for analog and digital sections; connect to low-impedance system ground |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall sensing | Simultaneous Bx, By, Bz measurement enables true absolute angle extraction without magnet orientation constraints |
| Pre-programmed 180° analog transfer | Factory-calibrated 80%VDD/180° output eliminates production-line programming and reduces BOM cost |
| On-chip DSP with CoRDiC engine | Real-time magnetic angle calculation with self-compensation for flux density and temperature drift |
| 12-bit thermal accuracy | 10-bit effective thermal accuracy maintained across −40°C to +85°C due to intrinsic flux compensation |
| EMC-optimized SOIC-8 layout | Grounded test and unused pins reduce radiated emissions; meets IEC 61000-4-3 Level 3 (10 V/m) |
Applications
| Industrial Valve Position Feedback | Brushless DC Motor Commutation |
|---|---|
Use Scenario: Monitoring rotational position of quarter-turn pneumatic or hydraulic actuator shafts in process control systems. IC Role / Device Role / Timing Role: Absolute angle sensor providing real-time 0–180° feedback to PLC or motion controller via analog voltage. Use Value: Eliminates wear-prone potentiometers; ±0.5° accuracy ensures precise valve throttling and repeatability over 10M+ cycles. | Use Scenario: Detecting rotor position for electronic commutation in BLDC motors used in HVAC blowers and industrial pumps. IC Role / Device Role / Timing Role: Primary rotor position encoder replacing Hall latches; outputs 180°-scaled analog signal synchronized to mechanical rotation. Use Value: Enables smooth sinusoidal drive with reduced torque ripple; 12-bit resolution supports >1000 RPM stable operation. |
| Automotive Throttle Pedal Sensor | Rotary Joystick Interface |
Use Scenario: Measuring driver-applied pedal angle in drive-by-wire throttle systems compliant with ASIL-B functional safety requirements. IC Role / Device Role / Timing Role: Redundant-capable position transducer delivering fail-safe analog output with diagnostic reporting capability. Use Value: Pre-programmed 180° transfer matches common pedal travel arcs; built-in diagnostics detect open-circuit, short-to-rail, and overtemperature faults. | Use Scenario: Converting dual-axis joystick deflection into proportional analog signals for industrial HMI panels and robotic teach pendants. IC Role / Device Role / Timing Role: Dual-axis position decoder (X/Y) using two MLX90340SDC-AAA-300-SP units mounted orthogonally on PCB. Use Value: Contactless operation prevents drift and contamination failure; 180° range maps directly to ±90° joystick swing with linear response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90363KDC-AAA-000-SP | Same SOIC-8 package, but programmable 0–360° analog output; requires external EEPROM programming | Used where field calibration or multi-range support is needed; lacks factory 180° preset | Select when design requires flexibility to reconfigure transfer curve post-production |
| TLE5012BE1000XUMA1 | Infineon 3D Hall sensor with SPI interface; 16-bit resolution; no pre-programmed analog mode | Requires microcontroller host for data interpretation; suited for digital bus architectures over analog-only systems | Select when system already uses SPI peripherals and needs higher resolution or integrated diagnostics |
Compared with MLX90340SDC-AAA-300-SP, MLX90363KDC-AAA-000-SP offers field-programmability at the cost of added production complexity, while TLE5012BE1000XUMA1 shifts architecture toward digital communication-making MLX90340SDC-AAA-300-SP optimal for drop-in analog replacement of potentiometers with zero programming overhead.
Availability
MLX90340SDC-AAA-300-SP is available at Aetrix Electronics and suitable for industrial valve control, BLDC motor commutation, and automotive throttle sensing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MLX90340SDC-AAA-300-SP 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 consumer applications, with core expertise in Hall-effect, IR, and pressure sensing technologies.
The MLX90340 belongs to Melexis' Triaxis® absolute position sensor product line, engineered specifically for contactless, high-accuracy angular and linear displacement measurement in harsh electromagnetic and thermal environments.
FAQ
What is the output transfer function of the MLX90340SDC-AAA-300-SP?
The MLX90340SDC-AAA-300-SP is factory pre-programmed with a ratiometric analog output transfer function of 80%VDD over 180° mechanical rotation. This means VOUT = 0.8 × VDD × (θ/180°), where θ is the measured angle. Clamping, offset, and gain parameters are fixed at production and require no field programming. The MLX90340SDC-AAA-300-SP delivers this calibrated output directly on Pin 5 (OUT) without external components.
Does the MLX90340SDC-AAA-300-SP support PWM output?
No, the MLX90340SDC-AAA-300-SP is configured exclusively for ratiometric analog output. While the base MLX90340 silicon supports both analog and PWM modes, the AAA-300 option code locks the device to analog mode with 180° scaling. To obtain PWM output, a different option code (e.g., AAA-000) or variant such as MLX90340EDC-AAA-000-SP must be selected. The MLX90340SDC-AAA-300-SP does not respond to PWM configuration commands.
What is the recommended grounding strategy for unused pins on the MLX90340SDC-AAA-300-SP?
Per Melexis datasheet Section 7.1, Pins 2 (Test Input), 3 (Test), 4 (Not Used), and 6 (Test1) must be connected to VSS (Pin 8) to ensure optimal EMC performance. This practice minimizes parasitic coupling and radiated emissions in industrial noise environments. The MLX90340SDC-AAA-300-SP's SOIC-8 layout relies on grounded test pins to maintain signal integrity of the analog output on Pin 5, especially in high-voltage motor drive proximity.
Can the MLX90340SDC-AAA-300-SP operate with a 3.3 V supply?
No, the MLX90340SDC-AAA-300-SP requires a minimum supply voltage of 4.5 V and operates up to 5.5 V. Its internal analog chain and 12-bit DAC are designed for 5 V rail compatibility, and VDIG (Pin 7) regulates an internal 3.3 V digital supply - it is not an input. Supplying 3.3 V will result in undervoltage lockout and no valid output. The MLX90340SDC-AAA-300-SP must be powered from a stable 5 V source meeting ±5% tolerance.
Is the MLX90340SDC-AAA-300-SP qualified for automotive applications?
The MLX90340SDC-AAA-300-SP carries an industrial temperature grade (−40°C to +85°C) and is not AEC-Q200 qualified. While it is used in some automotive throttle pedal prototypes, Melexis assigns automotive qualification only to specific variants like MLX90340LDC-AAA-xxx-SP (with L-temp grade −40°C to +150°C). For production automotive systems, the MLX90340SDC-AAA-300-SP should be validated per customer-specific reliability requirements and is not guaranteed to meet AEC-Q200 stress test profiles.
MLX90340SDC-AAA-300-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- 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:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340SDC-AAA-300-SP FAQ
1.How can I place an order for MLX90340SDC-AAA-300-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340SDC-AAA-300-SP 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 MLX90340SDC-AAA-300-SP reliable?
The price and inventory of MLX90340SDC-AAA-300-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90340SDC-AAA-300-SP is usually 5 days.
3.What payment methods are accepted for MLX90340SDC-AAA-300-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340SDC-AAA-300-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340SDC-AAA-300-SP?
MLX90340SDC-AAA-300-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340SDC-AAA-300-SP 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 MLX90340SDC-AAA-300-SP?
For technical support, including MLX90340SDC-AAA-300-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340SDC-AAA-300-SP requirements.
6.How does Aetrix verify that MLX90340SDC-AAA-300-SP is sourced from the original manufacturer or authorized distributors?
All MLX90340SDC-AAA-300-SP 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 MLX90340SDC-AAA-300-SP meets industry standards.
7.What is the process for return or replacement of MLX90340SDC-AAA-300-SP?
All MLX90340SDC-AAA-300-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340SDC-AAA-300-SP, 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 MLX90340SDC-AAA-300-SP part is unused and in its original packaging.
Return procedure for MLX90340SDC-AAA-300-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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