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Melexis Technologies NV MLX90340LDC-AAA-000-SP
- Part No.:
- MLX90340LDC-AAA-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340LDC-AAA-000-SP.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,495
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Product details
Overview
MLX90340LDC-AAA-000-SP from Melexis is a monolithic Triaxis® Hall-effect IC for absolute rotary and linear position sensing, delivering 12-bit analog or PWM output with programmable transfer characteristics, ±0.5° angular accuracy over -40°C to 150°C, and integrated signal processing in SOIC-8 package. It replaces contact potentiometers in heavy-duty throttle, steering, and valve position feedback.
For engineers reviewing the MLX90340LDC-AAA-000-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, real-world use cases, and validated alternative options for industrial position-sensing designs requiring thermal stability and magnetic field immunity.
Technical Context
The MLX90340LDC-AAA-000-SP integrates three orthogonal Hall plates (Bx, By, Bz) and a 16-bit RISC microcontroller running firmware-based CoRDiC angle computation, enabling true 3D magnetic field decoding without external components. Its front-end uses chopper-stabilized amplifiers and 2-phase spinning for offset cancellation.
Signal path includes 15-bit ADC digitization, DSP-based angular calculation (α = arctan(Bj/Bi)), and programmable output conditioning via 4-point or 17-point piecewise-linear (PWL) calibration stored in ECC-protected NVRAM - all operating from a single 2.7–24 V supply with internal 3.3 V regulator (VDIG).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Selectable ratiometric analog (0–VDD) or 12-bit PWM (1 kHz typical); enables direct MCU ADC or timer capture interface without external signal conditioning. |
| Angular Accuracy | ±0.5° over full range at 25°C; maintains <±1.5° over -40°C to 150°C due to on-chip thermal compensation and flux-density self-compensation. |
| Resolution | 12-bit (4096 steps); delivers 0.088°/LSB for 360° rotation, sufficient for high-fidelity motor commutation and servo control. |
| Supply Range | 2.7 V to 24 V DC; supports wide-input industrial power rails and eliminates need for external LDO in 12/24 V systems. |
| Operating Temp | -40°C to +150°C; qualified for under-hood automotive and industrial actuator environments without derating. |
| Magnetic Range | ±1 T (±10 kG); compatible with standard NdFeB magnets at air gaps up to 4 mm, reducing mechanical tolerance sensitivity. |
Pinout & Package
MLX90340LDC-AAA-000-SP is housed in RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm), optimized for surface-mount reflow and high-voltage isolation. Unused and test pins must be tied to ground per Melexis EMC guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VDD | Primary power input | Accepts 2.7–24 V DC; powers analog front-end, digital core, and internal regulator - no external bias required. |
| 2 – Test Input | Factory test interface | Used during wafer sort and final test; not functional in end application; recommended grounded for EMC. |
| 3 – Test | Factory test interface | Internal logic access point; no user-accessible function; tie to GND to minimize noise coupling. |
| 4 – Not Used | No internal connection | Electrically isolated silicon pad; must be connected to VSS to reduce EMI susceptibility and improve thermal dissipation. |
| 5 – OUT | Main signal output | Drives ratiometric analog voltage (0–VDD) or PWM signal; buffered output capable of 5 mA sink/source. |
| 6 – Test1 | Factory test interface | Dedicated for post-package testing; no runtime functionality; connect to ground per layout best practice. |
| 7 – VDIG | Internal 3.3 V regulator output | Provides stable 3.3 V for internal digital blocks; decoupling capacitor (100 nF) required between VDIG and VSS. |
| 8 – VSS | Ground reference | Analog and digital common return; must be low-impedance plane; separate analog/digital grounding not required due to integrated design. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Sensing | Simultaneous Bx, By, Bz measurement enables absolute angle extraction from magnet rotation or linear stroke without mechanical cams or gears. |
| Programmable PWL Transfer | 17-point piecewise-linear calibration allows precise matching to non-uniform mechanical motion profiles (e.g., throttle pedal hysteresis or valve lift curves). |
| On-Chip Thermal Compensation | Firmware-based correction eliminates external temperature sensor and lookup tables, reducing BOM count and calibration effort. |
| Single-Wire Programming | Configuration via VDD and OUT pins using PTC-04 programmer - no dedicated programming interface needed, simplifying production line setup. |
| EMC-Optimized Layout | Test and unused pins specified for grounding in datasheet; reduces radiated emissions and improves immunity in noisy motor-drive environments. |
Applications
| Throttle Position Sensing | Steering Angle Monitoring |
|---|---|
Use Scenario: Detecting accelerator pedal angle in diesel engine control units with vibration, oil exposure, and wide temperature swings. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time analog voltage proportional to pedal rotation (0–100% VDD over 0–90°). Use Value: Replaces wear-prone potentiometers; achieves >100 million cycle lifetime and maintains ±0.8° accuracy after 10,000 thermal cycles (-40°C ↔ 150°C). | Use Scenario: Measuring rack-and-pinion steering shaft rotation in EPS systems where compact size and high EMC immunity are critical. IC Role / Device Role / Timing Role: Contactless angular transducer reporting 0–360° rotation via PWM output synchronized to vehicle CAN bus timing windows. Use Value: Eliminates slip-ring assemblies; meets ISO 11452-2 radiated immunity ≥100 V/m and supports ASIL-B functional safety architecture. |
| Industrial Valve Actuation | Rotary Encoders for Servo Motors |
Use Scenario: Monitoring quarter-turn ball valve position in chemical plant automation where ingress protection and corrosion resistance are mandatory. IC Role / Device Role / Timing Role: Linearized analog output mapped to 0–100% open/closed state using 4-point calibration to compensate for gear backlash and seal friction. Use Value: Enables SIL-2 compliant position verification without redundant sensors; operates continuously at 125°C ambient with no drift compensation. | Use Scenario: High-resolution rotor angle feedback in PMSM servo drives requiring sub-degree precision and fast response for field-oriented control. IC Role / Device Role / Timing Role: Real-time magnetic angle estimator feeding FOC algorithm with 12-bit resolution and <10 µs latency (typical step response). Use Value: Reduces torque ripple by 35% vs. resolver-based solutions; supports 20 kHz PWM switching with deterministic timing via hardware-synced PWM output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90363KGO-ABA-000-SP | Dual-die TSSOP-16 package with full redundancy; 16-bit resolution; extended diagnostics including short-circuit detection on both outputs. | Required for ASIL-D automotive safety applications; supports dual-output voting architecture and failsafe signaling. | Select when functional safety certification (ISO 26262) and fault-tolerant operation are mandatory - not drop-in compatible due to different package and pin count. |
| TLE5012BE1000XUMA1 | Infineon's 3D Hall sensor with 19-bit resolution and SPI interface; no integrated PWM output; requires external MCU for transfer curve mapping. | Better suited for systems with existing SPI infrastructure and software-defined calibration; lacks on-chip PWL engine and EEPROM storage. | Choose if higher resolution and flexible host-controlled calibration outweigh loss of autonomous analog/PWM output and increased software overhead. |
Compared with MLX90340LDC-AAA-000-SP, the MLX90363 offers certified redundancy but demands PCB redesign and safety validation, while the TLE5012B provides greater raw resolution yet shifts calibration complexity to firmware - making MLX90340LDC-AAA-000-SP optimal for cost-sensitive, self-contained industrial position sensing.
Availability
MLX90340LDC-AAA-000-SP is available at Aetrix Electronics and suitable for throttle position sensing, steering angle monitoring, and industrial valve actuation requiring stable component supply across automotive Tier-1, heavy equipment OEM, and factory automation programs.
Supply support for MLX90340LDC-AAA-000-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 and industrial markets, with core expertise in magnetic sensing, infrared thermometry, and LIN/CAN system solutions.
The MLX903xx product line delivers robust, programmable absolute position sensors based on Triaxis® technology - designed specifically for harsh-environment applications demanding long-term reliability, thermal stability, and contactless operation without mechanical wear.
FAQ
What is the operating temperature range of the MLX90340LDC-AAA-000-SP?
The MLX90340LDC-AAA-000-SP operates from -40°C to +150°C, fully qualified for under-hood automotive and industrial actuator environments. This rating is confirmed in Section 8 (Absolute Maximum Ratings) and Section 13 (Accuracy) of the official Melexis datasheet Rev. 2-31AUG2020, where thermal accuracy is specified across the full range without derating. The device maintains ±1.5° angular error at 150°C ambient, enabled by on-chip thermal compensation algorithms.
Does the MLX90340LDC-AAA-000-SP support both analog and PWM output simultaneously?
No, the MLX90340LDC-AAA-000-SP supports only one output mode at a time - either ratiometric analog voltage (0–VDD) or 12-bit PWM - selected during programming via the PTC-04 tool. Section 17.1 of the datasheet explicitly states that Analog and PWM modes are mutually exclusive; the output stage is configured statically and cannot be switched dynamically in operation. The MLX90340LDC-AAA-000-SP does not include dual-output capability.
Can the MLX90340LDC-AAA-000-SP be programmed in-circuit after soldering?
Yes, the MLX90340LDC-AAA-000-SP supports in-system programming using only the VDD and OUT pins - no dedicated programming interface or additional pins are required. As documented in Section 17 and Figure 19.1 of the datasheet, configuration is performed via voltage-level sequences applied to VDD while monitoring OUT response. This enables field calibration and parameter updates without removing the MLX90340LDC-AAA-000-SP from the PCB.
What is the purpose of the VDIG pin on the MLX90340LDC-AAA-000-SP?
The VDIG pin on the MLX90340LDC-AAA-000-SP is the output of an internal 3.3 V regulator that powers the digital core, EEPROM, and microcontroller. Per Section 7.1 and Figure 1, it must be decoupled with a 100 nF capacitor to VSS. VDIG is not an input - it cannot be back-driven or used as a supply source for external circuitry. Its regulation accuracy is ±3% over temperature and load, ensuring stable digital operation independent of VDD fluctuations.
Is the MLX90340LDC-AAA-000-SP pin-compatible with other MLX903xx variants in SOIC-8?
Yes, all MLX903xx devices in SOIC-8 package (e.g., MLX90341, MLX90363 in single-die configuration) share identical pinout per Table 3 of the datasheet - VDD, Test Input, Test, Not Used, OUT, Test1, VDIG, VSS. However, functional differences exist: MLX90340LDC-AAA-000-SP lacks built-in diagnostics present in MLX90363, and its firmware does not support SPI communication. Pin compatibility does not guarantee drop-in replacement without firmware and output-mode verification.
MLX90340LDC-AAA-000-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:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340LDC-AAA-000-SP FAQ
1.How can I place an order for MLX90340LDC-AAA-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340LDC-AAA-000-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 MLX90340LDC-AAA-000-SP reliable?
The price and inventory of MLX90340LDC-AAA-000-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90340LDC-AAA-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90340LDC-AAA-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340LDC-AAA-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340LDC-AAA-000-SP?
MLX90340LDC-AAA-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340LDC-AAA-000-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 MLX90340LDC-AAA-000-SP?
For technical support, including MLX90340LDC-AAA-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340LDC-AAA-000-SP requirements.
6.How does Aetrix verify that MLX90340LDC-AAA-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90340LDC-AAA-000-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 MLX90340LDC-AAA-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90340LDC-AAA-000-SP?
All MLX90340LDC-AAA-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340LDC-AAA-000-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 MLX90340LDC-AAA-000-SP part is unused and in its original packaging.
Return procedure for MLX90340LDC-AAA-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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