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Melexis Technologies NV MLX90324LDC-DBO-000-RE
- Part No.:
- MLX90324LDC-DBO-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90324LDC-DBO-000-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:4,609
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Product details
Overview
MLX90324LDC-DBO-000-RE 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 programmable SENT (SAE-J2716), analog ratiometric, or PWM output modes, designed for under-the-hood automotive applications such as throttle and EGR actuators.
For engineers reviewing the MLX90324LDC-DBO-000-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its −40°C to +150°C operating range, SOIC-8 package, integrated magneto-concentrator (IMC), self-compensated ATAN computation, and end-user programmability of transfer characteristic via 16-point LNR calibration.
Technical Context
The MLX90324LDC-DBO-000-RE employs a dual-Hall front-end with Integrated Magneto-Concentrator (IMC) to sense in-plane magnetic flux (BX/BY), enabling absolute angle calculation via arctangent lookup table-not CoRDiC-yielding intrinsic thermal compensation. Its 16-bit RISC DSP executes firmware-stored microcode for signal processing, diagnostics, and output formatting.
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). All modes operate across full −40°C to +150°C ambient range with supply voltage 4.5–5.5 V and current draw 7–15 mA depending on speed mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temperature | −40°C to +150°C - qualified for under-the-hood automotive environments without derating. |
| Angular Resolution | 12 bits - enables 0.0879° step size for high-fidelity position feedback in closed-loop control. |
| Intrinsic Linearity Error | ±1° at TA = 25°C - defines baseline accuracy before magnet/mounting tolerances and multi-point calibration. |
| Output Protocols | SENT (SAE-J2716), analog ratiometric, PWM - selectable per application EMI, latency, and interface requirements. |
| Supply Voltage | 4.5–5.5 V - compatible with standard automotive 5 V rails; POR at 2.7 V ensures robust startup. |
| Supply Current | 7–15 mA - scalable across slow/medium/fast modes to balance power vs. response time (e.g., 600 μs sampling in slow mode). |
| ADC Resolution | 14–15 bits (raw sine/cosine) - provides oversampled input to DSP for stable ATAN computation under thermal drift. |
Pinout & Package
MLX90324LDC-DBO-000-RE is housed in an RoHS-compliant SOIC-8 package (Package Code DC), with 1.27 mm pitch, 4.9 mm × 6.0 mm body, and exposed pad not electrically connected. Pin 1 is VDD; unused pins (2, 4, 6) must be tied to ground per EMC recommendations.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main power supply input (4.5–5.5 V); powers internal regulator and digital/analog blocks. |
| 2 | Test 0 | Factory test pin; not connected in normal operation - tie to VSS per EMC guidelines. |
| 3 | Switch Out | Programmable angular switch output (open-drain); logic-low active at user-defined angle thresholds. |
| 4 | Not Used | No internal connection - must be grounded to minimize noise coupling and improve EMC. |
| 5 | Out | Main output terminal: delivers SENT, analog, or PWM signal depending on programmed mode. |
| 6 | Test 1 | Factory test pin; not connected in normal operation - tie to VSS per EMC guidelines. |
| 7 | VDIG | Digital supply rail for internal logic; internally regulated from VDD - decouple locally. |
| 8 | VSS | Ground reference for analog and digital sections; common return path for all currents. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall + IMC | Enables true in-plane magnetic field sensing (BX/BY) for contactless 360° absolute angle measurement without mechanical wear. |
| ATAN Lookup Table | Replaces iterative CoRDiC with memory-based arctangent computation - eliminates convergence delay and improves thermal stability. |
| 16-Point LNR Calibration | Allows end-user to correct nonlinearity from magnet placement and airgap variation using up to 16 custom transfer points. |
| SENT Protocol Compliance | Meets SAE-J2716 Rev 2016 for deterministic, low-pin-count digital transmission with embedded diagnostics and CRC. |
| EEPROM with ECC | 128 B of Hamming-coded EEPROM stores calibration, configuration, and 48-bit ID - ensures data integrity over 100k write cycles. |
Applications
| Throttle Position Sensing | EGR Valve Actuation |
|---|---|
Use Scenario: Monitoring butterfly valve angle in gasoline/diesel intake manifolds under high-temperature, vibration-prone conditions. IC Role / Device Role / Timing Role: Absolute angular transducer providing real-time position feedback to engine control unit (ECU) for closed-loop air/fuel ratio management. Use Value: Eliminates potentiometer wear and wiper noise; 12-bit resolution supports precise idle control and transient response within <1 ms latency. | Use Scenario: Tracking exhaust gas recirculation valve rotation in turbocharged engines where temperatures exceed 125°C near exhaust manifolds. IC Role / Device Role / Timing Role: High-temperature rotary sensor interfacing directly to ECU via SENT protocol for fault-tolerant diagnostics and fast update rates. Use Value: −40°C to +150°C rating avoids external cooling; SENT output reduces wiring harness complexity versus analog/PWM alternatives. |
| Non-Contacting Potentiometer | EMS Actuator Feedback |
Use Scenario: Replacing legacy conductive potentiometers in industrial valve positioners requiring >10M cycle lifetime and immunity to dust/moisture. IC Role / Device Role / Timing Role: Solid-state angular encoder delivering ratiometric analog or PWM output synchronized to host controller timing. Use Value: No mechanical wear or contact bounce; programmable clamping (0–100% VDD) matches legacy 0–5 V or 0–10 V interface standards. | Use Scenario: Providing position feedback in electric motor-driven steering (EPS), transmission shift-by-wire, or brake-by-wire actuators. IC Role / Device Role / Timing Role: Safety-relevant position sensor supporting ASIL-B decomposition via built-in diagnostics (broken track, supply monitoring, EEPROM CRC). Use Value: Self-diagnostic capability (per ISO 26262 Annex D) enables fail-safe reporting without external watchdog; 48-bit unique ID supports traceability in production. |
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-RE | Lacks SENT protocol; only analog/PWM outputs; lower max temperature (+125°C); same SOIC-8 package and Triaxis® core. | Suitable for less demanding under-hood locations (e.g., HVAC flaps) where digital diagnostics are not required. | Select when SENT is unnecessary and cost sensitivity outweighs extended temperature margin. |
| AMS AS5055A-BQFT | 14-bit resolution; SPI/I²C interface only (no SENT/analog/PWM); no integrated IMC - requires external concentrator or diametric magnet optimization. | Better suited for space-constrained PCBs needing high-resolution SPI feedback, but demands more magnetic design effort. | Choose for higher resolution and digital bus integration where SENT compatibility and drop-in replacement are not mandatory. |
Compared with MLX90316LDC-ABA-000-RE and AMS AS5055A-BQFT, the MLX90324LDC-DBO-000-RE uniquely combines SENT compliance, full automotive temperature range, and factory-programmable transfer characteristics in a single SOIC-8 footprint - simplifying qualification for safety-critical EMS systems.
Availability
MLX90324LDC-DBO-000-RE 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 Tier-1 production programs.
Supply support for MLX90324LDC-DBO-000-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 MLX90324 belongs to Melexis' Triaxis® rotary position sensor product line, engineered specifically for harsh-environment automotive "under-the-hood" applications demanding high reliability, extended temperature operation, and functional safety-ready diagnostics.
FAQ
What output protocols does the MLX90324LDC-DBO-000-RE support?
The MLX90324LDC-DBO-000-RE supports three user-selectable output protocols: SENT (SAE-J2716 Rev 2016), ratiometric analog voltage (0–100% VDD), and PWM (100–1000 Hz, 12-bit depth). The protocol is configured via EEPROM programming using Melexis' PTC-04 programmer and MLX90316/90324 daughterboard. SENT mode includes embedded diagnostics, CRC, and rolling counter functionality.
What is the angular accuracy of the MLX90324LDC-DBO-000-RE over temperature?
The MLX90324LDC-DBO-000-RE achieves ±1° intrinsic linearity error at 25°C and maintains 10-bit angular thermal accuracy (±0.1° typical) across −40°C to +150°C due to its self-compensated ATAN computation and dual-Hall front-end. Thermal offset drift is limited to ±60 LSB15 at DSP input, and sensitivity mismatch drift is ±0.5%, both contributing to predictable angular error bounds in automotive environments.
Can the MLX90324LDC-DBO-000-RE be used without a diametrically magnetized magnet?
No - the MLX90324LDC-DBO-000-RE requires a diametrically magnetized rotating magnet positioned above the IC surface to generate orthogonal BX and BY field components. Its Triaxis® architecture and integrated magneto-concentrator (IMC) are optimized for this geometry; axial or radial magnets will not produce valid quadrature signals. Melexis provides application notes (e.g., AN-002) detailing optimal magnet size, grade (e.g., NdFeB N42), and airgap (0.5–3.0 mm).
How is the MLX90324LDC-DBO-000-RE calibrated for nonlinearity correction?
The MLX90324LDC-DBO-000-RE supports two calibration methods: 3-point linearization (for basic correction) and 16-point LNR (Look-Up Table Non-Linearity Reduction). End-users program up to 16 (X,Y) coordinate pairs into EEPROM via the PTC-04 tool to define custom transfer curves. This compensates for mechanical tolerances, magnet placement errors, and airgap variations - improving system-level linearity beyond the ±1° intrinsic spec.
Does the MLX90324LDC-DBO-000-RE include functional safety features?
Yes - the MLX90324LDC-DBO-000-RE integrates multiple self-diagnostic functions aligned with ASIL-B decomposition requirements: broken VDD/VSS detection, EEPROM CRC verification, supply voltage monitoring, and magnetic field saturation alerts. Diagnostic status is reported via dedicated flags in SENT telegrams or analog/PWM output clamping bands. These features are enabled by default and require no external circuitry to meet ISO 26262 diagnostic coverage targets.
MLX90324LDC-DBO-000-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:
- 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-RE FAQ
1.How can I place an order for MLX90324LDC-DBO-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90324LDC-DBO-000-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-000-RE reliable?
The price and inventory of MLX90324LDC-DBO-000-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-000-RE is usually 5 days.
3.What payment methods are accepted for MLX90324LDC-DBO-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90324LDC-DBO-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90324LDC-DBO-000-RE?
MLX90324LDC-DBO-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90324LDC-DBO-000-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-000-RE?
For technical support, including MLX90324LDC-DBO-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90324LDC-DBO-000-RE requirements.
6.How does Aetrix verify that MLX90324LDC-DBO-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90324LDC-DBO-000-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-000-RE meets industry standards.
7.What is the process for return or replacement of MLX90324LDC-DBO-000-RE?
All MLX90324LDC-DBO-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90324LDC-DBO-000-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-000-RE part is unused and in its original packaging.
Return procedure for MLX90324LDC-DBO-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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