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Melexis Technologies NV MLX90324LDC-DBO-000-SP
- Part No.:
- MLX90324LDC-DBO-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90324LDC-DBO-000-SP.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,769
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Product details
Overview
MLX90324LDC-DBO-000-SP from Melexis is an absolute rotary position sensor IC based on Triaxis® Hall technology, delivering 12-bit angular resolution and ±1° intrinsic linearity error over 0–360° range, with SENT (SAE-J2716), analog ratiometric, or PWM output modes, designed for under-the-hood automotive applications including throttle and EGR actuators.
For engineers reviewing the MLX90324LDC-DBO-000-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its −40°C to +150°C operating range, programmable 16-point transfer characteristic, integrated magneto-concentrator (IMC), dual-die redundancy option, and SENT protocol compliance for high-integrity automotive signal transmission.
Technical Context
The MLX90324LDC-DBO-000-SP uses a monolithic SOIC-8 die with integrated magneto-concentrator (IMC) to sense in-plane magnetic flux (BX/BY) from a diametrically magnetized rotating magnet, enabling true 360° absolute angle measurement via arctangent computation in its 16-bit RISC DSP core. Its front-end employs chopper-stabilized amplifiers and quadrature spinning for offset cancellation.
Signal processing includes configurable ADC resolution (14–15 bits), programmable FIR/IIR filtering, and end-user calibration of clamping, deadzone, and linear/nonlinear transfer characteristics. Output is delivered through a 12-bit DAC (analog), 12-bit PWM generator, or SENT encoder - all selectable via EEPROM-programmable registers without dedicated programming pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Range | 0–360° absolute rotation - enables full-turn sensing without mechanical stops or multi-turn gearing. |
| Resolution & Accuracy | 12-bit angular resolution; ±1° intrinsic linearity error at TA = 25°C - supports high-fidelity closed-loop control in throttle/EGR systems. |
| Output Protocols | SENT (SAE-J2716), ratiometric analog (0–100% VDD), or PWM (100–1000 Hz) - provides flexibility for ECU interface compatibility and diagnostic readiness. |
| Operating Temperature | −40°C to +150°C - qualified for under-hood placement near engines, turbochargers, and exhaust manifolds. |
| Supply Voltage | 4.5–5.5 V nominal; 20 V absolute max - withstands automotive load-dump transients when used with external protection. |
| Supply Current | 7–15 mA depending on speed mode (Slow/Medium/Fast) - enables low-power operation in battery-sensitive subsystems. |
| Magnetic Sensitivity | 20–70 mT operational flux density - compatible with small, cost-effective diametric magnets and relaxed airgap tolerances (±0.5 mm typical). |
Pinout & Package
MLX90324LDC-DBO-000-SP is housed in an RoHS-compliant SOIC-8 package (Package Code "DC"), with 1.27 mm pitch, 4.9 mm × 3.9 mm body, and exposed pad for thermal enhancement. Pin 1 is VDD; unused and test pins must be tied to ground per EMC recommendations.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main supply input (4.5–5.5 V); powers analog front-end, DSP, and output drivers. |
| 2 | Test 0 | Factory test pin; must be connected to VSS for EMC compliance and normal operation. |
| 3 | Switch Out | Programmable angular switch output (open-drain); used for limit detection or status signaling. |
| 4 | Not Used | No internal connection; requires grounding per datasheet Section 16.1 for optimal EMC. |
| 5 | Out | Main output terminal - delivers SENT, analog, or PWM signal depending on configuration. |
| 6 | Test 1 | Factory test pin; must be connected to VSS for EMC compliance and normal operation. |
| 7 | VDIG | Digital supply rail for output stage; internally tied to VDD but decoupled for noise isolation. |
| 8 | VSS | Ground reference for analog and digital sections; must be low-impedance for accuracy and EMC. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall + IMC architecture | Enables in-plane magnetic field sensing (BX/BY) for true 360° absolute angle decoding without external concentrators or complex magnet assemblies. |
| 16-point programmable transfer curve | Allows precise linearization and custom mapping (e.g., non-uniform throttle pedal response) using end-user EEPROM calibration - no hardware change required. |
| SENT protocol compliance (SAE-J2716) | Supports deterministic, CRC-protected, low-pin-count digital communication with standard automotive ECUs - eliminates analog noise susceptibility. |
| Integrated diagnostics & ECC EEPROM | Includes broken-track, overvoltage, and watchdog diagnostics; 128 B EEPROM with Hamming ECC ensures robust parameter retention over 100k write cycles and 15-year data retention. |
| Three-speed operating modes | Configurable sampling rates (600/400/330 μs) and filter settings enable trade-off between latency (<1.2 ms step response in Fast mode) and noise rejection for diverse actuator dynamics. |
Applications
| Throttle Position Sensing | EGR Valve Actuation |
|---|---|
|
Use Scenario: Monitoring real-time angular position of drive-by-wire throttle plates in gasoline and hybrid powertrains. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing primary feedback to engine control unit (ECU) for closed-loop air-fuel ratio management. Use Value: 12-bit resolution and SENT output ensure sub-degree accuracy and immunity to EMI in high-noise engine bays, meeting ASIL-B functional safety requirements. |
Use Scenario: Measuring rotation of exhaust gas recirculation (EGR) valve spools to regulate NOx emissions in diesel and turbocharged engines. IC Role / Device Role / Timing Role: High-temperature position transducer interfacing directly with ECU via SENT or analog channel for real-time valve position reporting. Use Value: −40°C to +150°C operation and programmable clamping allow reliable function across cold start to full-load thermal cycling without recalibration. |
| Manifold Runner Control | Non-Contacting Potentiometer Replacement |
|
Use Scenario: Tracking angular position of variable intake manifold flaps to optimize volumetric efficiency across engine RPM ranges. IC Role / Device Role / Timing Role: Robust angular sensor mounted directly on flap shaft, replacing potentiometers vulnerable to dust, moisture, and wear. Use Value: Triaxis® technology eliminates mechanical contact and wear-out mechanisms, delivering >100 million cycle lifetime and stable performance in humid, oily environments. |
Use Scenario: Replacing legacy conductive plastic or wirewound potentiometers in industrial valve position feedback, robotic joint encoders, and HVAC damper controls. IC Role / Device Role / Timing Role: Solid-state absolute angle transducer offering analog/PWM/SENT outputs for drop-in replacement in existing PCB layouts. Use Value: SOIC-8 footprint and pin-compatible analog output mode simplify redesign; programmable 0–360° range supports single-turn applications without gear reduction. |
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 |
|---|---|---|---|
| MLX90316EDG-ABA-000-SP | Same Triaxis® architecture but rated for −40°C to +125°C; lacks SENT protocol; only analog/PWM outputs. | Targeted for cabin or chassis applications, not under-hood; unsuitable for high-temp EGR/throttle use cases requiring SENT. | Select MLX90316EDG-ABA-000-SP only if ambient temperature stays below 125°C and SENT is not required. |
| AMS AS5055A-BQFT | 14-bit resolution, SPI interface only, no SENT or analog output; operates up to +125°C; requires external magnet calibration. | Designed for consumer/industrial encoders; lacks automotive qualification, integrated diagnostics, and redundant architecture. | Choose AMS AS5055A-BQFT for cost-sensitive non-automotive designs where SPI interface and higher resolution outweigh SENT and temperature needs. |
Compared with MLX90316EDG-ABA-000-SP and AMS AS5055A-BQFT, the MLX90324LDC-DBO-000-SP uniquely combines 150°C operation, SENT protocol, on-chip diagnostics, and 16-point programmability - making it the only option qualified for safety-critical under-hood automotive position sensing without external signal conditioning.
Availability
MLX90324LDC-DBO-000-SP is available at Aetrix Electronics and suitable for throttle position sensing, EGR valve actuation, and manifold runner control requiring stable component supply across automotive production lifecycles.
Supply support for MLX90324LDC-DBO-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 magnetic sensing, infrared thermometry, and automotive ICs, with ISO/TS 16949 certification and deep expertise in Hall-effect sensor design.
The MLX90324 belongs to Melexis' Triaxis® rotary position sensor product line, engineered specifically for harsh-environment automotive applications demanding high-temperature reliability, functional safety compliance, and flexible digital/analog output options.
FAQ
What output protocols does the MLX90324LDC-DBO-000-SP support?
The MLX90324LDC-DBO-000-SP supports three user-selectable output protocols: SENT (SAE-J2716 compliant), ratiometric analog (0–100% VDD), and PWM (100–1000 Hz). Configuration is performed via EEPROM programming using the Melexis PTC-04 programmer and MLX90316/90324 daughterboard - no dedicated pins are required. All protocols operate within the same −40°C to +150°C temperature range.
Is the MLX90324LDC-DBO-000-SP qualified for automotive under-hood applications?
Yes, the MLX90324LDC-DBO-000-SP is explicitly designed for under-hood use, with AEC-Q100 qualification, −40°C to +150°C operating temperature range, and robust EMC performance validated per ISO 11452-2/4. Its Triaxis® Hall + IMC architecture, integrated diagnostics, and SENT protocol meet functional safety requirements for ASIL-B–rated throttle and EGR systems.
How is angular linearity calibrated on the MLX90324LDC-DBO-000-SP?
Linearity is calibrated via end-user programmable parameters stored in 128 B EEPROM, supporting both 3-point and 16-point linearization. Users define coordinate points (e.g., LNR_A_X/Y, LNR_B_X/Y) and clamping thresholds (CLAMP_HIGH/LOW) using Melexis' GUI tools. The DSP applies these corrections in real time - no external compensation circuitry is needed.
Does the MLX90324LDC-DBO-000-SP include built-in diagnostics?
Yes, the MLX90324LDC-DBO-000-SP integrates multiple self-diagnostic functions: broken VDD/VSS track detection, overvoltage/undervoltage monitoring, watchdog timeout, and SENT CRC error checking. Diagnostic status is reported via dedicated output pins or embedded flags in SENT telegrams - enabling real-time fault detection per ISO 26262 requirements.
What is the magnetic field requirement for proper operation of the MLX90324LDC-DBO-000-SP?
The MLX90324LDC-DBO-000-SP requires a diametrically magnetized rotating magnet delivering 20–70 mT flux density at the IC surface. Operation above 70 mT causes IMC saturation and increased linearity error. Magnet temperature coefficient (TCm) is −2400 ppm/°C, so thermal drift must be accounted for in high-temperature placements - typical airgap is 1–3 mm with NdFeB or SmCo magnets.
MLX90324LDC-DBO-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:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage, PWM, 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-000-SP FAQ
1.How can I place an order for MLX90324LDC-DBO-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90324LDC-DBO-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 MLX90324LDC-DBO-000-SP reliable?
The price and inventory of MLX90324LDC-DBO-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 MLX90324LDC-DBO-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90324LDC-DBO-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90324LDC-DBO-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90324LDC-DBO-000-SP?
MLX90324LDC-DBO-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90324LDC-DBO-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 MLX90324LDC-DBO-000-SP?
For technical support, including MLX90324LDC-DBO-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90324LDC-DBO-000-SP requirements.
6.How does Aetrix verify that MLX90324LDC-DBO-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90324LDC-DBO-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 MLX90324LDC-DBO-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90324LDC-DBO-000-SP?
All MLX90324LDC-DBO-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90324LDC-DBO-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 MLX90324LDC-DBO-000-SP part is unused and in its original packaging.
Return procedure for MLX90324LDC-DBO-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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