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Melexis Technologies NV MLX90423GDC-ACA-230-RE
- Part No.:
- MLX90423GDC-ACA-230-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90423GDC-ACA-230-RE.pdf
- Description:
- TRIAXIS POSITION PROCESSOR . SEN
- Quantity:
- Payment:
- Shipping:
Inventory:1,174
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Product details
Overview
MLX90423GDC-ACA-230-RE from Melexis is a Triaxis® Hall-based monolithic magnetic position processor IC for absolute linear position sensing with stray field immunity up to 5 mT. It delivers SENT (SAE J2716 APR2016) output, operates from -40°C to +160°C, and features ASIL-C functional safety compliance for automotive pedal and throttle position sensing.
For engineers reviewing the MLX90423GDC-ACA-230-RE datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (SOIC-8), confirmed SENT timing (Tframe = 846 µs), validated stray-field robust linear mode (-2xx option), and real-world diagnostic cycle (DCT_ana = 10.64 ms).
Technical Context
The MLX90423GDC-ACA-230-RE integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz components, enabling absolute linear position decoding without mechanical contact. Its on-chip DSP performs stray-field-robust angle calculation using programmable multi-point linearization (12–16 points) and supports dynamic reconfiguration of output transfer characteristics.
This variant is factory pre-programmed for linear stray-field-robust operation (-2xx option) and SENT output (SW config "3"), with fixed SOIC-8 packaging (DC code), Grade 0 AEC-Q100 qualification, and ISO 26262 SEooC certification at ASIL-C for SENT/PWM and ASIL-B for analog outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Protocol | SENT (SAE J2716 APR2016), pre-programmed; enables secure serial transmission with CRC, error codes, and user-defined data fields |
| Operating Temp | -40°C to +160°C; supports under-hood automotive environments including throttle and brake pedal modules |
| Stray Field Immunity | Robust to 5 mT (4 kA/m) per ISO 11452-8; ensures reliable linear position measurement in high-EMI powertrain zones |
| Supply Voltage | 4.5 V to 5.5 V (regulated mode); compatible with standard 5 V automotive sensor rails |
| Startup Time | Tstup = 6.6 ms (max) to first valid SENT angle; meets fast-response requirements in active safety systems |
| Diagnostic Cycle | DCT_ana = 10.64 ms (SENT with pause, 1-angle/frame); enables timely fault detection within ASIL-C timing constraints |
| Accuracy | ±0.5° typical INL over full range (linear stray-field-robust mode); supports high-fidelity pedal travel feedback |
Pinout & Package
MLX90423GDC-ACA-230-RE uses the SOIC-8 package (RoHS-compliant, 150 mil width), optimized for surface-mount assembly in space-constrained automotive sensor housings. Pin 4 and Pin 6 are NC; Test1/Test2 pins are internally grounded in application mode and should be tied to PCB ground for EMC integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VDD | Supply input | Accepts 4.5–5.5 V regulated supply; powers analog/digital domains and internal regulators |
| 2 – Test1 | Factory test | Internally grounded during operation; connect to PCB ground for optimal EMC performance |
| 3 – Test2 | Factory test | Internally grounded during operation; connect to PCB ground for optimal EMC performance |
| 4 – N.C. | No connection | Not bonded; must be left unconnected or tied to ground per Melexis EMC recommendation |
| 5 – OUT | SENT output | Push-pull digital output delivering SAE J2716 frames; requires external pull-up to Vext ≤ 18 V |
| 6 – N.C. | No connection | Not bonded; must be left unconnected or tied to ground per Melexis EMC recommendation |
| 7 – VDEC | Analog regulator decoupling | Connect 100 nF ceramic capacitor to VSS for stable 3.3 V internal analog rail |
| 8 – VSS | Ground reference | Primary return path for analog/digital circuits; must be low-impedance connection to system ground |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous Bx/By/Bz measurement enables true 3D magnetic field decoding for contactless linear position with no moving parts |
| Programmable Linear Transfer | 12–16 point user-configurable lookup table allows precise calibration to magnet geometry and mechanical stroke nonlinearity |
| SENT Secure Sensor Format | Embedded CRC, status flags, and configurable message fields support diagnostics and traceability in ASIL-C systems |
| Stray Field Robustness | Validated immunity to 5 mT external fields enables deployment near motors, solenoids, and inverters without shielding |
| ASIL-C Functional Safety | Integrated watchdogs (AWD/IWD), memory ECC, and diagnostic coverage meet ISO 26262 requirements for safety-critical position feedback |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Real-time monitoring of accelerator or brake pedal angular displacement in electric/hybrid powertrains. IC Role / Device Role / Timing Role: Absolute linear position sensor providing SENT-encoded angle data with <6.6 ms startup latency and ASIL-C compliance. Use Value: Enables closed-loop torque control and failsafe pedal release detection without contact wear or signal drift. | Use Scenario: High-reliability angular measurement of engine throttle valve position in turbocharged ICE and mild-hybrid systems. IC Role / Device Role / Timing Role: Stray-field-immune position transducer delivering SENT frames every 846 µs with ±0.5° accuracy. Use Value: Supports precise air-fuel ratio management and EGR control while surviving under-hood EMI up to 5 mT. |
| Ride Height Control | Steering Wheel Position |
Use Scenario: Non-contact linear displacement feedback for adaptive suspension actuators adjusting vehicle ride height dynamically. IC Role / Device Role / Timing Role: Linear stray-field-robust sensor interfacing with chassis control ECUs via SENT bus with DCT_ana = 10.64 ms. Use Value: Eliminates potentiometer wear and hysteresis, enabling millimeter-level height repeatability across temperature extremes. | Use Scenario: Absolute angular tracking of steering wheel rotation for EPS assist torque calculation and lane-keeping systems. IC Role / Device Role / Timing Role: Contactless 360°-capable position processor (reprogrammable from linear to trough-shaft mode) with SENT output. Use Value: Provides zero-latency torque feedback and center-position detection without slip rings or optical encoders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90423GGO-ACA-230-RE | TSSOP-16 dual-die redundant package; isolated dice (Risol ≥ 4 MΩ); higher IDD (2×), same SENT timing and ASIL-C rating | Required for dual-channel ASIL-D architectures; supports cross-die comparison diagnostics | Select when hardware redundancy and die-level isolation are mandated by system safety architecture |
| MLX90423GVE-ACA-230-RE | SMP-3 PCB-less single-mold package (3-pin); smaller footprint (3.2 × 2.5 mm); identical electrical specs but no Test/N.C. pins | Ideal for ultra-compact modules where board space is constrained (e.g., integrated pedal sensors) | Choose for miniaturized designs needing same functionality in smallest possible form factor |
Compared with MLX90423GDC-ACA-230-RE, the TSSOP-16 alternative adds hardware redundancy at the cost of size and current draw, while the SMP-3 version reduces footprint by 70% with identical core sensing and SENT performance-enabling layout flexibility without sacrificing ASIL-C compliance or stray-field immunity.
Availability
MLX90423GDC-ACA-230-RE is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and ride height adjustment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90423GDC-ACA-230-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 sensors and driver ICs for automotive and industrial markets, with expertise in magnetic sensing, thermal imaging, and LIN/CAN interface solutions.
The MLX90423 product line delivers Triaxis® Hall-based absolute position sensing for safety-critical automotive applications, designed specifically to replace contact-based potentiometers and optical encoders in harsh EMI environments.
FAQ
What output protocol is pre-configured on the MLX90423GDC-ACA-230-RE?
The MLX90423GDC-ACA-230-RE is factory pre-programmed for SENT (SAE J2716 APR2016) output with Secure Sensor format, including CRC, status flags, and user-defined data fields. It retains full programmability to PWM or ratiometric analog via end-user configuration, but defaults to SENT at power-on.
Does the MLX90423GDC-ACA-230-RE support stray magnetic field immunity?
Yes, the MLX90423GDC-ACA-230-RE is configured for linear stray-field-robust operation (-2xx option), certified to withstand external magnetic interference up to 5 mT (4 kA/m) per ISO 11452-8. This enables reliable position measurement near motors, solenoids, and high-current conductors without additional shielding.
What is the operating temperature range of the MLX90423GDC-ACA-230-RE?
The MLX90423GDC-ACA-230-RE operates from -40°C to +160°C (Grade 0 AEC-Q100), making it suitable for under-hood automotive applications such as throttle bodies, brake pedals, and suspension control units where ambient temperatures exceed 125°C.
Which package type does the MLX90423GDC-ACA-230-RE use?
The MLX90423GDC-ACA-230-RE uses the SOIC-8 package (package code DC), a RoHS-compliant 150-mil wide surface-mount device with exposed pad thermal enhancement. Pinout matches Table 4 in the datasheet, including dedicated VDEC decoupling and NC pins tied to ground for EMC.
Is the MLX90423GDC-ACA-230-RE certified for functional safety applications?
Yes, the MLX90423GDC-ACA-230-RE is ISO 26262 SEooC certified at ASIL-C for SENT and PWM outputs, and ASIL-B for analog output. It includes integrated watchdogs (AWD/IWD), memory ECC, and diagnostic coverage meeting requirements for safety-critical position feedback in automotive ECUs.
MLX90423GDC-ACA-230-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- -
- Linear Range:
- -
- Output:
- Analog, SENT
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90423GDC-ACA-230-RE FAQ
1.How can I place an order for MLX90423GDC-ACA-230-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90423GDC-ACA-230-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 MLX90423GDC-ACA-230-RE reliable?
The price and inventory of MLX90423GDC-ACA-230-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90423GDC-ACA-230-RE is usually 5 days.
3.What payment methods are accepted for MLX90423GDC-ACA-230-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90423GDC-ACA-230-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90423GDC-ACA-230-RE?
MLX90423GDC-ACA-230-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90423GDC-ACA-230-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 MLX90423GDC-ACA-230-RE?
For technical support, including MLX90423GDC-ACA-230-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90423GDC-ACA-230-RE requirements.
6.How does Aetrix verify that MLX90423GDC-ACA-230-RE is sourced from the original manufacturer or authorized distributors?
All MLX90423GDC-ACA-230-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 MLX90423GDC-ACA-230-RE meets industry standards.
7.What is the process for return or replacement of MLX90423GDC-ACA-230-RE?
All MLX90423GDC-ACA-230-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90423GDC-ACA-230-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 MLX90423GDC-ACA-230-RE part is unused and in its original packaging.
Return procedure for MLX90423GDC-ACA-230-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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