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Melexis Technologies NV MLX90324LDC-DBO-000-TU
- Part No.:
- MLX90324LDC-DBO-000-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90324LDC-DBO-000-TU.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,116
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Product details
Overview
MLX90324LDC-DBO-000-TU 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 supporting SENT (SAE-J2716), analog ratiometric, or PWM output modes. It decodes full 360° rotation from coplanar magnetic flux using integrated magneto-concentrator (IMC) architecture and is designed for under-the-hood automotive applications such as throttle and EGR actuators.
For engineers reviewing the MLX90324LDC-DBO-000-TU datasheet, pinout, applications, or equivalent options, key selection considerations include its SOIC-8 package, SENT protocol compliance, programmable 16-point transfer characteristic, thermal accuracy of ±10° over temperature, and dual-die redundancy option in TSSOP-16.
Technical Context
The MLX90324LDC-DBO-000-TU integrates two orthogonal Hall plate pairs with an on-die IMC to sense magnetic flux parallel to the IC surface, enabling true 360° absolute angle measurement via arctangent computation (VY/VX). Its DSP block executes firmware-based angular calculation using a look-up table-not CoRDiC-ensuring intrinsic compensation against airgap and thermal flux variations.
It supports three configurable output protocols: SENT (SAE-J2716) with rolling counter and diagnostic nibbles, ratiometric analog (12-bit DAC), or PWM (12-bit depth, 100–1000 Hz). Programmable parameters include clamping thresholds, deadzone, hysteresis, filter settings (FIR/IIR), and 16-point linearization, all stored in 128 B EEPROM with Hamming ECC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40°C to +150°C - qualified for under-hood automotive environments without derating |
| Angular Resolution | 12 bits - enables 0.0879° step size for high-precision actuator feedback |
| Thermal Accuracy | ±10° over full temp range - achieved via front-end offset/sensitivity drift compensation |
| Output Protocols | SENT (SAE-J2716), analog ratiometric, PWM - selectable per application interface requirements |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive power rails |
| Supply Current | 7–15 mA - scalable across slow/medium/fast modes to balance latency vs. power |
| Magnetic Range | 20–70 mT - optimized for diametrically magnetized magnets at typical airgaps (1–3 mm) |
Pinout & Package
MLX90324LDC-DBO-000-TU 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 not present. Pin functions are validated per Melexis DS Rev. 005 Section 4 and Figure 20.2.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main supply input (4.5–5.5 V); connects to 5 V rail with local 100 nF ceramic decoupling |
| 2 | Test 0 | Factory test pin; must be tied to VSS for EMC compliance per datasheet Section 4 |
| 3 | Switch Out | Programmable digital switch output (open-drain); used for angular threshold detection |
| 4 | Not Used | No internal connection; recommended to tie to VSS per datasheet Section 4 |
| 5 | Out | Primary output: SENT signal (open-drain), analog voltage, or PWM depending on configuration |
| 6 | Test 1 | Factory test pin; must be tied to VSS for EMC compliance per datasheet Section 4 |
| 7 | VDIG | Digital ground reference; separate from analog ground in layout best practice |
| 8 | VSS | Analog ground; requires low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Tria⊗is® Hall + IMC | Enables contactless 360° absolute angle sensing from coplanar magnetic fields-no mechanical wear or potentiometer drift |
| SENT Protocol Support | Complies with SAE-J2716 Level A; delivers 12-bit angle + diagnostics in compact 4-nibble telegram with CRC |
| 16-Point Linearization | Allows end-user calibration of nonlinearity across full rotation using EEPROM-stored lookup points |
| Programmable Clamping | Configurable high/low output limits (0–100% VDD) prevent saturation in noisy or misaligned mechanical setups |
| Self-Diagnostic Engine | Monitors VDD/VSS integrity, IMC health, EEPROM ECC, and signal path faults-reports via SENT or Switch Out |
Applications
| Throttle Position Sensing | EGR Valve Actuation |
|---|---|
Use Scenario: Real-time angular feedback of throttle blade position in gasoline/diesel engines under high-temperature, vibration-prone conditions. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing SENT-encoded angle data to engine control unit (ECU) every 330–1000 μs. Use Value: Enables closed-loop air-fuel ratio control with ±10° thermal accuracy across −40°C to +150°C, eliminating potentiometer wear and recalibration needs. | Use Scenario: Monitoring exhaust gas recirculation valve rotation in diesel aftertreatment systems exposed to under-hood heat soak. IC Role / Device Role / Timing Role: High-reliability angular transducer delivering ratiometric analog output synchronized to ECU PWM timing windows. Use Value: Maintains <1% ratiometry error and 12-bit resolution despite thermal cycling, supporting precise NOx reduction and OBD-II compliance. |
| Non-Contacting Potentiometer | Steering Angle Sensor Backup |
Use Scenario: Replacement of legacy conductive potentiometers in industrial valve positioners requiring >10M cycle lifetime and IP67 sealing. IC Role / Device Role / Timing Role: Contactless angular encoder interfacing via PWM output to PLC analog input modules with 1 kHz update rate. Use Value: Eliminates mechanical wear and wiper noise; programmable 3-point linearization compensates for gear backlash and magnet placement tolerances. | Use Scenario: Redundant angular feedback channel in steer-by-wire systems where primary sensor failure triggers safety fallback mode. IC Role / Device Role / Timing Role: Secondary rotary position sensor with SENT output and independent EEPROM-stored calibration, isolated from main sensor domain. Use Value: Provides fail-operational capability with diagnostic coverage exceeding ASIL-B requirements via broken-track and supply monitoring. |
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 |
|---|---|---|---|
| MLX90316LDC-ABA-000-TU | Lacks SENT protocol; supports only analog/PWM; lower max temp (125°C); no 16-point LNR | Suitable for cost-sensitive non-automotive industrial encoders where SENT is not mandated | Select when SENT compliance and extended temperature range are not required |
| AMS AS5055A-BQFT | 14-bit resolution; SPI interface only; no built-in IMC-requires external concentrator; 125°C max ambient | Fits space-constrained PCBs but demands additional magnetics design and host processor SPI resources | Choose for higher resolution where SENT is unavailable and thermal range ≤125°C suffices |
Compared with MLX90324LDC-DBO-000-TU, the MLX90316 offers reduced feature set and temperature rating, while the AS5055A provides higher resolution but lacks integrated magnetics and SENT support-making MLX90324LDC-DBO-000-TU the only option combining full 360° SENT output, 150°C operation, and on-die IMC in SOIC-8.
Availability
MLX90324LDC-DBO-000-TU is available at Aetrix Electronics and suitable for throttle position sensing, EGR valve actuation, and non-contacting potentiometer replacement requiring stable component supply across automotive production lifecycles.
Supply support for MLX90324LDC-DBO-000-TU 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 and embedded signal processing.
The MLX90324 belongs to Melexis' Triaxis® rotary position sensor product line, engineered specifically for harsh under-hood environments requiring high-temperature reliability, functional safety readiness, and robust magnetic field immunity.
FAQ
What output protocols does the MLX90324LDC-DBO-000-TU support?
The MLX90324LDC-DBO-000-TU supports three user-selectable output protocols: SENT (SAE-J2716 Level A), ratiometric analog voltage (0–100% VDD), and PWM (100–1000 Hz, 12-bit depth). Configuration is performed via EEPROM programming using the Melexis PTC-04 programmer and MLX90316/90324 daughterboard. The SENT mode delivers 12-bit angle data plus diagnostics in a 4-nibble telegram with CRC, making it ideal for automotive ECU integration.
What is the operating temperature range of the MLX90324LDC-DBO-000-TU?
The MLX90324LDC-DBO-000-TU operates from −40°C to +150°C, validated per AEC-Q100 Grade 0 requirements. This extended range is enabled by Melexis' high-temperature CMOS process and on-die thermal compensation algorithms, ensuring ±10° angular accuracy across the full span. The device maintains functionality during under-hood thermal soak events and cold-start conditions without derating or external heatsinking.
How is angular accuracy maintained over temperature in the MLX90324LDC-DBO-000-TU?
MLX90324LDC-DBO-000-TU achieves ±10° thermal accuracy through dual-stage compensation: front-end offset/sensitivity drift correction (±60 LSB15) and DAC/output stage drift mitigation (±0.4% VDD). Its arctangent computation (VY/VX) intrinsically rejects common-mode flux variations caused by airgap shift or magnet aging. These mechanisms are implemented in firmware and calibrated at wafer test, eliminating need for system-level temperature compensation.
Can the MLX90324LDC-DBO-000-TU be programmed in-system?
Yes, the MLX90324LDC-DBO-000-TU supports in-system programming via its supply (VDD) and output (OUT) pins-no dedicated programming pins required. All parameters-including output mode, 16-point transfer curve, clamping thresholds, and diagnostic settings-are written using the Melexis PTC-04 programmer and MLX90316/90324 software tools. Programming occurs at engineering lab or production line level and stores data in 128 B EEPROM with Hamming ECC for bit-error resilience.
What package type and pin count does the MLX90324LDC-DBO-000-TU use?
The MLX90324LDC-DBO-000-TU uses an SOIC-8 package (Package Code DC), measuring 4.9 mm × 3.9 mm with 1.27 mm lead pitch. It contains eight leads: VDD, Test 0, Switch Out, Not Used, Out, Test 1, VDIG, and VSS. Unused and test pins must be tied to VSS per Melexis datasheet Section 4 to ensure optimal EMC performance and avoid floating node issues.
MLX90324LDC-DBO-000-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tube
- 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-TU FAQ
1.How can I place an order for MLX90324LDC-DBO-000-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90324LDC-DBO-000-TU 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-TU reliable?
The price and inventory of MLX90324LDC-DBO-000-TU 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-TU is usually 5 days.
3.What payment methods are accepted for MLX90324LDC-DBO-000-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90324LDC-DBO-000-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90324LDC-DBO-000-TU?
MLX90324LDC-DBO-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90324LDC-DBO-000-TU 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-TU?
For technical support, including MLX90324LDC-DBO-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90324LDC-DBO-000-TU requirements.
6.How does Aetrix verify that MLX90324LDC-DBO-000-TU is sourced from the original manufacturer or authorized distributors?
All MLX90324LDC-DBO-000-TU 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-TU meets industry standards.
7.What is the process for return or replacement of MLX90324LDC-DBO-000-TU?
All MLX90324LDC-DBO-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90324LDC-DBO-000-TU, 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-TU part is unused and in its original packaging.
Return procedure for MLX90324LDC-DBO-000-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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