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Melexis Technologies NV MLX90324LDC-DBO-100-TU
- Part No.:
- MLX90324LDC-DBO-100-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90324LDC-DBO-100-TU.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,878
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Product details
Overview
MLX90324LDC-DBO-100-TU 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 throttle position sensing in automotive under-the-hood applications at −40°C to +150°C.
For engineers reviewing the MLX90324LDC-DBO-100-TU datasheet, pinout, applications, or equivalent options, key selection factors include its SOIC-8 package, programmable 16-point transfer characteristic, integrated magneto-concentrator (IMC), thermal accuracy of ±10 bit over temperature, and SENT protocol compliance for high-integrity automotive diagnostics.
Technical Context
The MLX90324LDC-DBO-100-TU uses a dual-Hall front-end with Integrated Magneto-Concentrator (IMC) to sense in-plane magnetic flux (BX/BY), enabling true 360° absolute angle computation via arctangent lookup table. Its 16-bit RISC DSP executes firmware-stored calibration, self-diagnostic routines, and real-time output mapping.
It supports three configurable output protocols - SENT (12-bit angle + status nibbles), ratiometric analog (0–100% VDD), and PWM (12-bit depth, 100–1000 Hz) - all selectable via EEPROM programming without hardware changes. The device operates across full automotive temperature range with supply current of 7–15 mA depending on speed mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Resolution | 12-bit (0.0879°/LSB), noise-free theoretical resolution for precise closed-loop control feedback |
| Intrinsic Linearity Error | ±1° at TA = 25°C, defines worst-case deviation from ideal transfer curve before calibration |
| Operating Temperature | −40°C to +150°C, qualified for engine bay placement without external cooling or shielding |
| Output Protocols | SENT (SAE-J2716), analog ratiometric, PWM - all programmable in-system via VDD/OUT pins |
| Supply Voltage Range | 4.5 V to 5.5 V, compatible with standard 5 V automotive power rails and brown-out tolerant down to 2.7 V |
| Package Type | SOIC-8 (DC), RoHS-compliant, 5.0 mm × 4.0 mm footprint with IMC positioned per Melexis layout spec |
| ADC Resolution (Raw) | 14–15 bits (mode-dependent), enables high-fidelity sine/cosine digitization prior to ATAN computation |
Pinout & Package
MLX90324LDC-DBO-100-TU is housed in an 8-pin SOIC package (Package Code DC), with exposed die pad not electrically connected. Pin 1 is VDD; Pin 8 is VSS (ground); Pin 5 is the primary output (Analog/PWM/SENT); Pin 3 is Switch Out; unused pins (2, 4, 6) must be tied to ground per EMC recommendation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main supply input (4.5–5.5 V); powers internal regulator, DSP, and analog front-end |
| 2 | Test 0 | Factory test pin; not connected in end application - must be grounded for EMC compliance |
| 3 | Switch Out | Programmable digital switch output with hysteresis; used for threshold-based actuation (e.g., idle stop) |
| 4 | Not Used | No internal connection; requires grounding to minimize EMI and ensure stable operation |
| 5 | Out | Primary output terminal: delivers SENT telegram, analog voltage, or PWM signal per configuration |
| 6 | Test 1 | Factory test pin; not connected in end application - must be grounded for EMC compliance |
| 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; single-point connection recommended |
Key Features
| Feature | Design Value |
|---|---|
| Tria⊗is® Hall + IMC | Senses in-plane magnetic field (BX/BY) without magnet reorientation - enables compact axial-field designs |
| 16-Point Programmable Transfer | Allows custom linear/nonlinear mapping (e.g., logarithmic throttle response) without external MCU intervention |
| SENT Protocol Compliance | Meets SAE-J2716 Rev 2016 for deterministic timing, CRC-protected data, and diagnostic status nibbles |
| Self-Diagnostic Capability | Detects broken VDD/VSS tracks, magnetic saturation, EEPROM corruption, and sensor front-end faults autonomously |
| High-Temperature Operation | Validated up to +150°C ambient - eliminates need for derating or thermal shielding in EGR/throttle modules |
Applications
| Throttle Position Sensing | EGR Valve Actuation |
|---|---|
Use Scenario: Monitoring butterfly valve angle in gasoline direct injection engines for air-fuel ratio control and torque management. IC Role / Device Role / Timing Role: Absolute angular transducer providing SENT-coded 12-bit position data every 330–1000 μs depending on speed mode. Use Value: Enables closed-loop throttle control with <±1° linearity and built-in diagnostics to meet ASIL-B functional safety requirements. | Use Scenario: Tracking exhaust gas recirculation valve rotation in diesel aftertreatment systems to reduce NOx emissions. IC Role / Device Role / Timing Role: High-temperature rotary sensor interfacing directly with engine control unit via SENT bus for real-time feedback. Use Value: Delivers stable 360° measurement at +150°C with programmable clamping to prevent erroneous actuation during thermal transients. |
| Non-Contacting Potentiometer | EMS Actuator Feedback |
Use Scenario: Replacing wear-prone mechanical potentiometers in HVAC blend door actuators and transmission shift-by-wire systems. IC Role / Device Role / Timing Role: Contactless angular encoder with analog ratiometric output mapped to 0–5 V for legacy ECU compatibility. Use Value: Eliminates mechanical wear and wiper noise while maintaining OEM-specified transfer characteristics via 16-point EEPROM calibration. | Use Scenario: Providing position feedback for electronic turbocharger vanes and variable geometry intake manifolds. IC Role / Device Role / Timing Role: Redundancy-ready sensor (single-die variant) delivering synchronized PWM and SENT outputs for fault-tolerant control loops. Use Value: Supports dual-output validation in safety-critical EMS subsystems without requiring additional signal conditioning circuitry. |
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-AAA-000-TU | Lacks SENT protocol; only supports analog/PWM; lower max operating temperature (+125°C) | Targeted for cabin/non-under-hood use; no SAE-J2716 diagnostics support | Select when SENT is unnecessary and cost sensitivity outweighs thermal margin needs |
| AMS AS5055A-BQFT | 14-bit resolution; SPI interface only; no integrated IMC - requires external flux concentrator | Designed for industrial encoders; lacks automotive qualification and built-in diagnostics | Choose for higher resolution in non-automotive settings where board space allows external magnetics |
Compared with MLX90316LDC-AAA-000-TU and AMS AS5055A-BQFT, the MLX90324LDC-DBO-100-TU uniquely combines SENT compliance, +150°C operation, and on-chip IMC in SOIC-8 - making it the only option qualified for direct-mount throttle position sensing with OEM-level diagnostic coverage.
Availability
MLX90324LDC-DBO-100-TU is available at Aetrix Electronics and suitable for automotive throttle control, EGR valve positioning, and non-contacting potentiometer replacement requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90324LDC-DBO-100-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 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 "under-the-hood" applications demanding high-temperature reliability, functional safety diagnostics, and multi-protocol flexibility.
FAQ
What output protocols does the MLX90324LDC-DBO-100-TU support?
The MLX90324LDC-DBO-100-TU supports three user-selectable output protocols: SENT (SAE-J2716 compliant), ratiometric analog (0–100% VDD), and PWM (12-bit depth, 100–1000 Hz). All are configured via EEPROM programming using the Melexis PTC-04 programmer - no hardware changes are required to switch between modes. Each protocol delivers the same 12-bit angular data with distinct timing, noise immunity, and diagnostic capabilities.
Does the MLX90324LDC-DBO-100-TU require an external magnet, and what type is recommended?
Yes, the MLX90324LDC-DBO-100-TU requires an external diametrically magnetized permanent magnet placed above the IC surface. Melexis specifies optimal performance with magnets delivering 20–70 mT flux density at the sensor plane; neodymium (NdFeB) or samarium-cobalt (SmCo) types are preferred for thermal stability up to +150°C. Magnet size, air gap, and alignment directly impact linearity - reference Melexis Application Note AN-017 for mechanical layout guidelines.
How is the MLX90324LDC-DBO-100-TU calibrated for angular linearity?
The MLX90324LDC-DBO-100-TU supports both 3-point and 16-point end-user programmable linearization. Calibration parameters (e.g., LNR_A_X/Y/S, CLAMP_HIGH/LOW) are written to its 128-byte EEPROM using the Melexis PTC-04 tool. The 16-point method allows arbitrary piecewise-linear correction to compensate for mechanical tolerances and magnetic non-uniformity - critical for meeting <±0.5° total system error in throttle applications.
What self-diagnostic functions are built into the MLX90324LDC-DBO-100-TU?
The MLX90324LDC-DBO-100-TU performs autonomous diagnostics including broken VDD/VSS track detection, EEPROM integrity check (Hamming ECC), magnetic saturation monitoring, and front-end signal validity verification. Diagnostic status is reported via dedicated SENT nibbles or analog output clamping - enabling ASIL-B compliant fault detection without host MCU intervention. Full diagnostic behavior is programmable via RESONFAULT and EEHAMHOLE registers.
Is the MLX90324LDC-DBO-100-TU pin-compatible with other MLX903xx devices?
No - the MLX90324LDC-DBO-100-TU (SOIC-8) shares the same pinout as MLX90316LDC variants but differs from TSSOP-16 dual-die versions (e.g., MLX90324LGO-xxx). While SOIC-8 packages maintain consistent pin numbering (VDD=1, VSS=8, OUT=5), functional differences - such as SENT capability and +150°C rating - mean direct substitution requires validation of firmware configuration, thermal margins, and diagnostic integration. Always verify against the specific device's datasheet revision.
MLX90324LDC-DBO-100-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:
- 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-TU FAQ
1.How can I place an order for MLX90324LDC-DBO-100-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90324LDC-DBO-100-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-100-TU reliable?
The price and inventory of MLX90324LDC-DBO-100-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-100-TU is usually 5 days.
3.What payment methods are accepted for MLX90324LDC-DBO-100-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90324LDC-DBO-100-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90324LDC-DBO-100-TU?
MLX90324LDC-DBO-100-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90324LDC-DBO-100-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-100-TU?
For technical support, including MLX90324LDC-DBO-100-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90324LDC-DBO-100-TU requirements.
6.How does Aetrix verify that MLX90324LDC-DBO-100-TU is sourced from the original manufacturer or authorized distributors?
All MLX90324LDC-DBO-100-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-100-TU meets industry standards.
7.What is the process for return or replacement of MLX90324LDC-DBO-100-TU?
All MLX90324LDC-DBO-100-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90324LDC-DBO-100-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-100-TU part is unused and in its original packaging.
Return procedure for MLX90324LDC-DBO-100-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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