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Melexis Technologies NV MLX90340SDC-AAA-300-RE
- Part No.:
- MLX90340SDC-AAA-300-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340SDC-AAA-300-RE.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
MLX90340SDC-AAA-300-RE from Melexis is a monolithic Triaxis® Hall-effect IC for absolute rotary position sensing up to 180°, delivering 12-bit ratiometric analog output with ±0.5° angular accuracy, 10-bit thermal accuracy over –40°C to +85°C, and programmable linear transfer characteristic. It operates from 4.5–24 V supply and integrates on-chip DSP, EEPROM, and 3.3 V regulator (VDIG) in SOIC-8 package.
For engineers reviewing the MLX90340SDC-AAA-300-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, pre-programmed 180° analog transfer function details, real-world use cases in industrial actuators and heavy-duty valves, and two validated alternative parts with documented functional differences.
Technical Context
The MLX90340SDC-AAA-300-RE senses orthogonal (Bz) and in-plane (Bx, By) magnetic flux components using integrated Hall plates, enabling robust angle computation via CoRDiC-based DSP firmware. Its signal chain includes chopper-stabilized amplification, 15-bit ADC, and 16-bit RISC microcontroller executing mask-ROM firmware for real-time angular extraction and output conditioning.
This variant is factory-programmed for 180° analog output range (80% VDD span), with fixed transfer function: VOUT = 0.4 × VDD + 0.4 × VDD × (α / 180°), where α ∈ [0°, 180°]. It supports no external programming interface-configuration is immutable post-manufacture-and features Hamming ECC-protected EEPROM for calibration data retention over >100k write cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog (0.4–0.8 × VDD), pre-programmed for 180° mechanical rotation |
| Angular Accuracy | ±0.5° typical at 25°C; enables high-fidelity feedback in closed-loop motor control |
| Thermal Accuracy | 10-bit resolution over –40°C to +85°C; maintains linearity without external compensation |
| Supply Range | 4.5 V to 24 V DC; compatible with 12 V/24 V industrial power rails |
| Package | SOIC-8; RoHS-compliant, surface-mount, footprint matches standard 150-mil SOIC |
| Magnetic Sensitivity | Operates with ±1 T flux density; supports low-cost ferrite magnets at air gaps up to 4 mm |
| Diagnostic Capability | Integrated self-test (VDD undervoltage, EEPROM CRC, sensor front-end fault detection) |
Pinout & Package
MLX90340SDC-AAA-300-RE uses the SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm body, 1.27 mm pitch). Unused and test pins must be tied to ground per Melexis EMC recommendations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Primary power input | 4.5–24 V supply rail; reverse-voltage protected 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 driver | Push-pull ratiometric voltage output (0.4–0.8 × VDD); drives 1 kΩ load |
| 6 - Test1 | Factory test node | No user connection; tie to GND for EMC compliance |
| 7 - VDIG | On-chip 3.3 V regulator output | Supplies internal digital core; decouple with 100 nF ceramic capacitor to VSS |
| 8 - VSS | Ground reference | Common return for analog and digital domains; low-impedance PCB plane required |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall sensing | Simultaneous Bx, By, Bz measurement enables true absolute angle decoding without magnet orientation constraints |
| Pre-programmed 180° analog transfer | Delivers calibrated 0.4–0.8 × VDD output across full 180° mechanical stroke-no field programming required |
| On-chip 3.3 V regulator (VDIG) | Eliminates need for external LDO; reduces BOM count and layout area in space-constrained modules |
| Self-diagnostic firmware | Detects VDD undervoltage, EEPROM corruption, and sensor front-end faults-enables ASIL-B–capable system monitoring |
| Hamming ECC EEPROM | Ensures integrity of calibration data over >100,000 write cycles and 15-year operation at 85°C |
Applications
| Industrial Valve Position Feedback | Heavy-Duty Rotary Actuator Monitoring |
|---|---|
Use Scenario: Monitoring quarter-turn ball valve position in hydraulic control systems operating at 120°C ambient and subject to vibration. IC Role / Device Role / Timing Role: Absolute angular sensor providing real-time 0–180° position feedback to PLC analog input module. Use Value: Enables fail-safe open/closed confirmation and proportional throttling control without potentiometer wear or contact bounce. | Use Scenario: Closed-loop position control of hydraulic cylinder-mounted rotary actuator in off-road construction equipment. IC Role / Device Role / Timing Role: Primary angle transducer feeding position data to motor driver MCU via ratiometric analog interface. Use Value: Delivers ±0.5° repeatability under shock loads (50 g) and wide temperature swings, eliminating recalibration during seasonal deployment. |
| Non-Contacting Throttle Pedal Sensor | Electric Power Steering (EPS) Angle Reference |
Use Scenario: Redundant throttle pedal position sensing in commercial vehicle engine management systems. IC Role / Device Role / Timing Role: Secondary analog channel for pedal angle (0–180°), cross-checked against primary PWM sensor. Use Value: Supports ISO 26262 ASIL-B diagnostics via built-in EEPROM CRC and supply monitoring-no external watchdog needed. | Use Scenario: Torque-angle correlation in dual-motor EPS systems requiring precise rotor alignment feedback. IC Role / Device Role / Timing Role: High-stability angular reference for motor phase commutation timing and torque vectoring algorithms. Use Value: 10-bit thermal accuracy ensures <±0.8° error over –40°C to +85°C, maintaining steering assist linearity across climate zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90363KDC-AAA-000-RE | SOIC-8, same Triaxis® architecture but programmable (not pre-configured); supports 360°, PWM/analog dual output | Requires programming infrastructure (PTC-04 + DB90316); suited for multi-variant production lines | Select when flexibility across 90°/180°/270°/360° ranges or PWM output is needed |
| AMS AS5055A-BQFT | 12-bit SPI-output magnetic encoder; 3.3 V only; no integrated regulator; ±0.3° accuracy at 25°C | Lacks ratiometric analog output and on-chip VDIG; requires external 3.3 V LDO and SPI host controller | Select when digital interface and higher base accuracy are prioritized over analog simplicity and supply flexibility |
Compared with MLX90340SDC-AAA-300-RE, MLX90363KDC-AAA-000-RE offers field programmability at the cost of added tooling complexity, while AMS AS5055A-BQFT delivers superior base accuracy but demands additional power and interface circuitry-making MLX90340SDC-AAA-300-RE optimal for drop-in analog replacement in legacy 12 V/24 V industrial designs.
Availability
MLX90340SDC-AAA-300-RE is available at Aetrix Electronics and suitable for industrial valve position feedback, heavy-duty rotary actuator monitoring, and non-contacting throttle pedal sensing requiring stable component supply across automotive Tier-1, industrial automation, and off-highway equipment programs.
Supply support for MLX90340SDC-AAA-300-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 magnetic sensing, infrared thermometry, and automotive ICs, with ISO/TS 16949-certified manufacturing and design centers across Europe and Asia.
The MLX90340 product line delivers robust absolute position sensing for harsh environments, targeting industrial automation, off-road vehicles, and safety-critical motion control where contactless reliability and thermal stability are mandatory.
FAQ
What is the factory-programmed transfer function of the MLX90340SDC-AAA-300-RE?
The MLX90340SDC-AAA-300-RE is pre-programmed for a 180° mechanical rotation range with ratiometric analog output spanning 0.4 × VDD to 0.8 × VDD. Its transfer function is VOUT = 0.4 × VDD + 0.4 × VDD × (α / 180°), where α is the measured angle in degrees. This configuration is immutable-no field reprogramming is possible on the MLX90340SDC-AAA-300-RE.
Does the MLX90340SDC-AAA-300-RE require external programming hardware?
No. The MLX90340SDC-AAA-300-RE ships fully configured from the factory with its 180° analog transfer function permanently stored in ROM and ECC-protected EEPROM. Unlike programmable variants such as MLX90363, the MLX90340SDC-AAA-300-RE needs no PTC-04 programmer, DB90316 interface board, or calibration software-reducing time-to-production and test overhead.
What is the role of the VDIG pin on the MLX90340SDC-AAA-300-RE?
The VDIG pin on the MLX90340SDC-AAA-300-RE is the output of an integrated 3.3 V regulator that powers the internal digital core (DSP, EEPROM, ROM). It must be decoupled with a 100 nF ceramic capacitor to VSS. This eliminates the need for an external LDO, simplifying power design and reducing bill-of-materials cost in space-constrained applications.
Can the MLX90340SDC-AAA-300-RE operate in automotive under-hood environments?
The MLX90340SDC-AAA-300-RE is rated for –40°C to +85°C ambient operation (E-grade), making it suitable for passenger car cabin and some under-dash locations-but not under-hood environments exceeding 85°C. For under-hood use up to 150°C, the L-grade variant MLX90340LDC-AAA-300-RE is required. The MLX90340SDC-AAA-300-RE's thermal accuracy specification applies strictly within its rated temperature range.
How does the MLX90340SDC-AAA-300-RE handle electromagnetic interference in industrial settings?
The MLX90340SDC-AAA-300-RE incorporates chopper-stabilized amplification, differential analog signal paths, and on-chip EMC optimization guidance-including mandatory grounding of all unused and test pins (Pins 2, 3, 4, 6). Its SOIC-8 package meets IEC 61000-4-3/4-6 immunity requirements when implemented per Melexis layout guidelines, ensuring reliable operation near variable-frequency drives and solenoid actuators.
MLX90340SDC-AAA-300-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340SDC-AAA-300-RE FAQ
1.How can I place an order for MLX90340SDC-AAA-300-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340SDC-AAA-300-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 MLX90340SDC-AAA-300-RE reliable?
The price and inventory of MLX90340SDC-AAA-300-RE 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-RE is usually 5 days.
3.What payment methods are accepted for MLX90340SDC-AAA-300-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340SDC-AAA-300-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340SDC-AAA-300-RE?
MLX90340SDC-AAA-300-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340SDC-AAA-300-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 MLX90340SDC-AAA-300-RE?
For technical support, including MLX90340SDC-AAA-300-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340SDC-AAA-300-RE requirements.
6.How does Aetrix verify that MLX90340SDC-AAA-300-RE is sourced from the original manufacturer or authorized distributors?
All MLX90340SDC-AAA-300-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 MLX90340SDC-AAA-300-RE meets industry standards.
7.What is the process for return or replacement of MLX90340SDC-AAA-300-RE?
All MLX90340SDC-AAA-300-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340SDC-AAA-300-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 MLX90340SDC-AAA-300-RE part is unused and in its original packaging.
Return procedure for MLX90340SDC-AAA-300-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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