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Melexis Technologies NV MLX90324LDC-DBO-100-RE
- Part No.:
- MLX90324LDC-DBO-100-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90324LDC-DBO-100-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MLX90324LDC-DBO-100-RE from Melexis is an absolute rotary position sensor IC based on Triaxis® Hall technology, operating over −40°C to +150°C, delivering 12-bit angular resolution and SENT (SAE-J2716), analog, or PWM output modes for throttle and EGR actuator feedback in automotive under-the-hood systems.
For engineers reviewing the MLX90324LDC-DBO-100-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its SOIC-8 package, programmable 360° angular range, SENT protocol compliance, thermal accuracy of ±10 bits over temperature, and integrated magneto-concentrator enabling robust non-contact sensing in harsh environments.
Technical Context
The MLX90324LDC-DBO-100-RE uses a dual-Hall front-end with Integrated Magneto-Concentrator (IMC) to sense coplanar magnetic flux (BX/BY), computing angle via arctangent lookup table-not CORDIC-enabling intrinsic compensation for airgap and thermal drift. Its 16-bit RISC DSP executes firmware-stored microcode for signal processing and diagnostics.
It supports three configurable output protocols: ratiometric analog (12-bit DAC), PWM (12-bit depth, 100–1000 Hz), and SENT (SAE-J2716) with 48-bit ID and programmable transfer characteristics up to 16-point linearization. All calibration and configuration are stored in 128 B EEPROM with Hamming ECC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Resolution | 12-bit (0.0879°/LSB), enabling precise closed-loop control in throttle and valve positioning. |
| Thermal Accuracy | 10-bit (±0.35° typical over −40°C to +150°C), achieved via intrinsic BX/BY ratio-based ATAN computation and IMC stability. |
| Output Protocols | Configurable SENT (SAE-J2716), ratiometric analog, or PWM-supports OEM diagnostic integration and legacy ECU compatibility. |
| Operating Temperature | −40°C to +150°C (L-grade), qualified for engine bay placement without external cooling or shielding. |
| Supply Voltage | 4.5 V to 5.5 V, with POR at 2.7 V-ensures reliable startup during cranking or low-battery conditions. |
| Power Consumption | 7–15 mA depending on speed mode (Slow/Medium/Fast)-optimized for continuous operation in always-on vehicle subsystems. |
| Magnetic Range | 20–70 mT (typical), compatible with standard diametrically magnetized NdFeB magnets at 1–3 mm airgap. |
Pinout & Package
MLX90324LDC-DBO-100-RE is housed in an RoHS-compliant SOIC-8 package (5.0 × 6.2 mm, 1.27 mm pitch), optimized for high-temperature reflow and automotive board-level reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Positive supply input | 5 V nominal supply rail; includes internal 3.3 V regulator for digital core and POR circuitry. |
| 2 (Test 0) | Factory test terminal | No user function; must be connected to VSS per EMC recommendation-no external bias required. |
| 3 (Switch Out) | Programmable angular switch output | Open-drain digital output with hysteresis; used for limit detection or multi-state position signaling. |
| 4 (Not Used) | Unbonded pad | Internally NC; recommended to tie to VSS for EMC integrity and thermal dissipation. |
| 5 (Out) | Main signal output | Configurable as analog (ratiometric), PWM, or SENT; drives loads up to ±20 mA with clamped saturation levels. |
| 6 (Test 1) | Factory test terminal | No user function; must be connected to VSS per EMC recommendation-no external bias required. |
| 7 (VDIG) | Digital ground reference | Separate analog/digital ground pin minimizes noise coupling into sensitive Hall front-end signals. |
| 8 (VSS) | Analog ground reference | Primary ground return for Hall sensors and analog signal chain; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Tria⊗is® Hall + IMC architecture | Enables true 360° absolute angular measurement using only coplanar magnetic fields-eliminates need for complex multi-magnet assemblies or gear-driven solutions. |
| Programmable 16-point transfer curve | Allows precise matching to mechanical linkage nonlinearities (e.g., butterfly valve rotation), reducing ECU compensation overhead and improving system linearity. |
| SENT (SAE-J2716) output mode | Provides deterministic, low-pin-count digital communication with built-in CRC, status flags, and multi-sensor daisy-chaining capability for modern powertrain ECUs. |
| Self-diagnostic capability | Monitors VDD/VSS continuity, magnetic field presence, signal path integrity, and EEPROM health-reports faults via dedicated diagnostic band or SENT status nibbles. |
| EEPROM with Hamming ECC | 128 B of error-corrected nonvolatile memory stores calibration, configuration, and 48-bit unique ID-ensures field-programmability and traceability without external components. |
Applications
| Throttle Position Sensing | EGR Valve Position Feedback |
|---|---|
Use Scenario: Monitoring butterfly valve angle in gasoline direct injection engines for real-time air-fuel ratio control and torque management. IC Role / Device Role / Timing Role: Absolute angular transducer providing SENT-coded position data every 330–1000 μs (configurable speed mode) with <1200 μs step response. Use Value: Enables closed-loop throttle control with ±0.35° thermal accuracy across full engine operating range, eliminating potentiometer wear and contact bounce issues. | Use Scenario: Tracking EGR valve rotation in diesel aftertreatment systems to regulate NOx recirculation under varying exhaust backpressure and temperature. IC Role / Device Role / Timing Role: High-temperature rotary sensor interfacing directly to powertrain ECU via SENT, supporting ASAM MCD-2 MC calibration workflows. Use Value: Delivers stable 360° position reporting at 150°C ambient with no performance degradation-reducing need for thermal derating or auxiliary cooling. |
| Non-Contacting Potentiometer Replacement | EMS Actuator Position Monitoring |
Use Scenario: Replacing legacy conductive plastic or wirewound potentiometers in HVAC blend door actuators and transmission shift-by-wire modules. IC Role / Device Role / Timing Role: Solid-state angular encoder with programmable clamping and deadzone-outputs analog voltage or PWM proportional to shaft angle. Use Value: Eliminates mechanical wear, wiper noise, and end-stop damage; supports 10M+ cycle lifetime and IP67-rated housing integration. | Use Scenario: Providing feedback for electric motor-driven turbocharger vanes, variable geometry oil pumps, and active suspension cam phasers. IC Role / Device Role / Timing Role: Robust position sensor co-located with actuator motor, operating from same 5 V supply and sharing ground plane with minimal filtering. Use Value: Reduces BOM count by integrating diagnostics, programmability, and triple-output flexibility-cutting validation time for new EMS variants. |
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 |
|---|---|---|---|
| MLX90363KGO-100-SP | TSSOP-16 dual-die redundant architecture; higher isolation resistance (4 MΩ); supports functional safety ASIL-B. | Required for ISO 26262-compliant steering angle or brake pedal position systems where single-point failure tolerance is mandated. | Select MLX90363KGO-100-SP when redundancy, diagnostic coverage >90%, or dual-die isolation is required-MLX90324LDC-DBO-100-RE lacks internal redundancy. |
| AMS AS5055A-BQFT | 14-bit resolution; SPI interface only; no SENT or PWM; operates to +125°C (not +150°C); smaller QFN-16 package. | Suitable for space-constrained industrial encoders or consumer robotics where automotive temp grade and SENT are not needed. | Choose AMS AS5055A-BQFT for cost-sensitive, non-automotive designs requiring higher resolution but lower temperature rating and no SENT support. |
Compared with MLX90363KGO-100-SP and AMS AS5055A-BQFT, the MLX90324LDC-DBO-100-RE offers optimal balance of automotive-grade temperature range, SENT protocol readiness, SOIC-8 manufacturability, and field-programmable transfer characteristics-making it ideal for volume production of under-the-hood EMS actuators without functional safety certification overhead.
Availability
MLX90324LDC-DBO-100-RE is available at Aetrix Electronics and suitable for throttle position sensing, EGR valve monitoring, and non-contacting potentiometer replacement requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100 qualification.
Supply support for MLX90324LDC-DBO-100-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 sensor solutions for automotive and industrial markets, with expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90324 product line delivers high-temperature, programmable rotary position sensing for "under-the-hood" powertrain and chassis applications-designed specifically to replace contact-based potentiometers in harsh thermal and EMI environments.
FAQ
What output protocols does the MLX90324LDC-DBO-100-RE support?
The MLX90324LDC-DBO-100-RE supports three user-selectable output protocols: ratiometric analog voltage (0–100% VDD), PWM (100–1000 Hz, 12-bit depth), and SENT (SAE-J2716) with 48-bit ID and CRC-protected telemetry. Configuration is performed via EEPROM programming using the Melexis PTC-04 tool and MLX90316/90324 daughterboard-no external pins are required for mode selection.
Does the MLX90324LDC-DBO-100-RE require an external magnet, and what type is recommended?
Yes, the MLX90324LDC-DBO-100-RE requires an external diametrically magnetized neodymium (NdFeB) magnet positioned above the IC surface. Melexis specifies optimal operation within 20–70 mT magnetic flux density, achievable with standard 3–5 mm diameter × 1–2 mm thick magnets at 1–3 mm airgap. Magnet temperature coefficient (−2400 ppm/°C) must be considered for full-range thermal stability.
How is angular accuracy maintained over temperature in the MLX90324LDC-DBO-100-RE?
Angular accuracy is maintained through intrinsic compensation: the MLX90324LDC-DBO-100-RE computes angle as ATAN(VY/VX), making the result independent of absolute flux magnitude changes due to temperature, airgap, or magnet aging. Combined with on-chip AGC, 10-bit thermal accuracy (±0.35°) is achieved across −40°C to +150°C without external calibration.
Can the MLX90324LDC-DBO-100-RE be programmed in-system, or does it require dedicated hardware?
The MLX90324LDC-DBO-100-RE supports in-system programming via its supply (VDD) and output (OUT) pins-no dedicated programming pins are needed. Programming is performed using the Melexis PTC-04 programmer with MLX90316/90324 daughterboard and associated DLL software. Field updates of transfer curves, clamping values, SENT parameters, and diagnostic settings are fully supported.
What is the purpose of the Switch Out pin on the MLX90324LDC-DBO-100-RE?
The Switch Out pin on the MLX90324LDC-DBO-100-RE is a programmable open-drain digital output that functions as an angular threshold detector. It can be configured to assert at any user-defined angle (e.g., 0°, 90°, or 180°) with adjustable hysteresis (KDHYST), enabling simple limit-switch replacement or multi-state position signaling without additional logic components.
MLX90324LDC-DBO-100-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:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- SENT
- Output Signal:
- -
- 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
MLX90324LDC-DBO-100-RE FAQ
1.How can I place an order for MLX90324LDC-DBO-100-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90324LDC-DBO-100-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 MLX90324LDC-DBO-100-RE reliable?
The price and inventory of MLX90324LDC-DBO-100-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90324LDC-DBO-100-RE is usually 5 days.
3.What payment methods are accepted for MLX90324LDC-DBO-100-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90324LDC-DBO-100-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90324LDC-DBO-100-RE?
MLX90324LDC-DBO-100-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90324LDC-DBO-100-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 MLX90324LDC-DBO-100-RE?
For technical support, including MLX90324LDC-DBO-100-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90324LDC-DBO-100-RE requirements.
6.How does Aetrix verify that MLX90324LDC-DBO-100-RE is sourced from the original manufacturer or authorized distributors?
All MLX90324LDC-DBO-100-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 MLX90324LDC-DBO-100-RE meets industry standards.
7.What is the process for return or replacement of MLX90324LDC-DBO-100-RE?
All MLX90324LDC-DBO-100-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90324LDC-DBO-100-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 MLX90324LDC-DBO-100-RE part is unused and in its original packaging.
Return procedure for MLX90324LDC-DBO-100-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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