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Melexis Technologies NV MLX90372GDC-ACC-300-RE
- Part No.:
- MLX90372GDC-ACC-300-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90372GDC-ACC-300-RE.pdf
- Description:
- SENSOR ROTRY/LNR ANLG/PWM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,300
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Product details
Overview
MLX90372GDC-ACC-300-RE from Melexis is a monolithic Triaxis® Hall-based magnetic position processor IC in SOIC-8 package, delivering absolute rotary or linear position sensing via SENT or PWM output. It operates from -40°C to +160°C, supports programmable 4–32-point piecewise linear transfer characteristics, and meets AEC-Q100 Grade 0 and ISO 26262 ASIL-C safety requirements for automotive throttle and pedal position sensing.
For engineers reviewing the MLX90372GDC-ACC-300-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 pin mapping, SENT/PWM timing constraints, stray-field robustness data, and validated alternative options for automotive position-sensing designs.
Technical Context
The MLX90372GDC-ACC-300-RE integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic field components, enabling contactless absolute angle measurement (0–360°) or linear displacement. Its on-chip DSP performs real-time signal conditioning, filtering, and piecewise linear interpolation with up to 32 breakpoints.
It supports two timing modes: asynchronous acquisition (588 µs typical measurement period) for SENT without pause and PWM, and synchronous acquisition locked to SENT frame timing (960 µs typical frame period at 3 µs tick). Output is configurable as SENT per SAE J2716 APR2016 or PWM with user-defined duty cycle resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | -40°C to +160°C - qualified for under-hood automotive environments including throttle bodies and brake pedals. |
| Supply Voltage | 4.5–5.5 V (regulated mode) - compatible with standard 5 V automotive ECUs; supports battery mode up to 18 V. |
| Supply Current | 8.0–10.5 mA (legacy -300 option) - enables low-power operation in always-on vehicle subsystems. |
| Output Interface | SENT (SAE J2716 APR2016) or PWM - SENT provides 12-bit position + diagnostics in secure frame format; PWM offers analog-compatible interface with programmable resolution. |
| Accuracy | ±0.3° typical angular error (standard/legacy -300 mode) - sufficient for high-fidelity pedal and steering wheel position feedback. |
| Magnetic Immunity | Robust against stray fields - no external shielding required in typical automotive mechanical layouts with proper magnet placement. |
| Safety Certification | ISO 26262 ASIL-C SEooC - enables integration into ASIL-B/C systems without requiring additional hardware redundancy. |
Pinout & Package
MLX90372GDC-ACC-300-RE uses the SOIC-8 RoHS-compliant package (Package Code DC), with pins 1–8 arranged in standard dual-inline configuration. Pin 4 is NC; pins 2 and 3 are internally grounded and must be connected to PCB ground for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | Accepts 4.5–5.5 V regulated supply; internal regulator generates 3.3 V analog rail (VDEC). |
| 2 - Input | Test or auxiliary input | Internally grounded in application; connect to PCB ground for optimal EMC performance. |
| 3 - Test | Test or auxiliary input | Internally grounded in application; connect to PCB ground for optimal EMC performance. |
| 4 - N.C. | No connection | Not bonded; must remain unconnected on PCB. |
| 5 - OUT | Digital output driver | Push-pull SENT/PWM output; supports 3–55 kΩ pull-up for SENT, 3 kΩ for PWM; short-circuit protected (3 µs response). |
| 6 - VSS | Digital ground | Reference for digital logic and output stage; separate from analog ground (pin 8) to minimize noise coupling. |
| 7 - VDEC | Analog decoupling | Connect 100 nF ceramic capacitor to VSS (pin 6) to stabilize internal 3.3 V analog supply. |
| 8 - VSS | Analog ground | Reference for Hall sensor and analog signal chain; must be star-grounded near VDEC (pin 7) for precision. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall Sensing | Measures Bx, By, Bz simultaneously to compute absolute angle or linear position without mechanical wipers or potentiometers. |
| Programmable Transfer Curve | Supports 4-, 8-, 16-, or 32-point PWL calibration - enables precise linearization across non-uniform magnetic fields in custom mechanical assemblies. |
| SENT Secure Sensor Format | Delivers 12-bit position + CRC + diagnostic flags in single frame - eliminates need for external microcontroller parsing in ECU-integrated applications. |
| Stray-Field Robustness | Validated operation in presence of external magnetic interference - reduces system-level shielding cost and simplifies packaging near motors or solenoids. |
| AEC-Q100 & ASIL-C Compliance | Qualified for automotive Grade 0; includes watchdog timers, memory ECC, and diagnostic cycle monitoring - satisfies functional safety requirements for powertrain and chassis control. |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator pedal angle in gasoline/diesel engines for closed-loop air-fuel ratio control and torque management. IC Role / Device Role / Timing Role: Absolute rotary position processor providing SENT output synchronized to engine control unit sampling intervals. Use Value: ±0.3° accuracy ensures precise throttle actuation; ASIL-C compliance enables direct integration into ASIL-B powertrain domains without external safety monitors. | Use Scenario: Detecting brake or accelerator pedal travel in electric and hybrid vehicles for regenerative braking coordination and drive-by-wire response. IC Role / Device Role / Timing Role: Linear position sensor with PWM or SENT output, operating continuously at 1–2 kHz update rate. Use Value: Stray-field immunity allows mounting near high-current traction inverters; SOIC-8 footprint enables compact placement inside pedal assembly housings. |
| Steering Wheel Angle Sensing | Ride Height Control |
Use Scenario: Measuring absolute steering angle for electronic stability control (ESC), lane-keeping assist (LKA), and automated parking systems. IC Role / Device Role / Timing Role: Rotary position processor with SENT output, configured for 0–720° multi-turn capability via magnetic gear coupling. Use Value: Programmable 32-point PWL compensates for non-linear magnetic coupling in compact column-mounted designs; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. | Use Scenario: Monitoring suspension travel in adaptive air ride systems to adjust damping and vehicle level in real time. IC Role / Device Role / Timing Role: Linear position sensor interfacing with body control module via SENT frames containing position + temperature + diagnostic status. Use Value: Dual-ground (VSS digital/analog) isolation minimizes noise in high-vibration chassis environments; -40°C to +160°C rating covers under-vehicle thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90372GDC-ACE-300-RE | Same SOIC-8 package and -300 legacy configuration, but ACE chip revision replaces ACC; improved startup time (11.2 ms vs 12.4 ms), enhanced diagnostics, and extended product lifecycle support. | Identical functional scope; preferred for new designs due to active production status and updated safety mechanisms. | Select ACE-300 for all new automotive programs; ACC-300 remains available but not recommended for new designs per Melexis documentation. |
| MLX90363GSE-AAA-000-SP | SOIC-8 Hall-based rotary position sensor with analog ratiometric output (0.5–4.5 V) and fixed 10-bit resolution; lacks SENT/PWM programmability, ASIL-C certification, and PWL calibration. | Suitable for cost-sensitive, non-safety-critical applications like HVAC flap control; not compliant with ASIL-B/C or SENT-based ECU architectures. | Choose MLX90363 only when analog interface suffices and functional safety is not required; cannot substitute directly in SENT-dependent systems. |
Compared with MLX90372GDC-ACC-300-RE, the ACE-300 variant offers identical electrical and magnetic performance with superior startup timing and long-term supply assurance, while the MLX90363 provides lower-cost analog output at the expense of programmability, diagnostics, and safety certification.
Availability
MLX90372GDC-ACC-300-RE is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position sensing, and steering angle feedback systems requiring stable component supply across extended vehicle production lifecycles.
Supply support for MLX90372GDC-ACC-300-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 core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90372 belongs to Melexis' Triaxis® position processor product line, designed specifically for high-accuracy, contactless absolute position measurement in harsh automotive environments where reliability, safety, and stray-field immunity are critical.
FAQ
What is the operating temperature range of the MLX90372GDC-ACC-300-RE?
The MLX90372GDC-ACC-300-RE is rated for continuous operation from -40°C to +160°C, meeting AEC-Q100 Grade 0 requirements. This range supports under-hood placement in throttle bodies, transmission linkages, and brake modules where ambient temperatures exceed 125°C during peak engine load or solar soak conditions. The device maintains specified accuracy and SENT timing integrity across this full range.
Does the MLX90372GDC-ACC-300-RE support both SENT and PWM outputs?
Yes, the MLX90372GDC-ACC-300-RE supports selectable SENT (SAE J2716 APR2016) or PWM output via end-user programming. SENT delivers 12-bit position plus diagnostics in secure frame format; PWM provides pulse-width modulated signal with user-configurable resolution and frequency. Both interfaces are implemented on the same OUT pin (pin 5) and require no hardware changes to switch between modes.
What is the significance of the "ACC-300" option code in MLX90372GDC-ACC-300-RE?
The "ACC-300" option code identifies the MLX90372GDC-ACC-300-RE as a legacy silicon revision (ACC) configured for standard/legacy angular or linear position sensing (-300), with SOIC-8 packaging (DC) and tape-and-reel delivery (-RE). Per Melexis documentation, ACC remains in production but is not recommended for new designs; ACE-300 is the preferred revision offering improved startup timing and updated safety features.
How does the MLX90372GDC-ACC-300-RE achieve stray magnetic field immunity?
The MLX90372GDC-ACC-300-RE achieves stray-field immunity through its Triaxis® Hall architecture, which measures all three orthogonal magnetic vector components (Bx, By, Bz) and applies on-chip DSP algorithms to reject common-mode interference. Combined with differential sensing topology and optimized on-die magnetic concentrators, it maintains ±0.3° accuracy even in proximity to motors, solenoids, or high-current cables-eliminating need for external mu-metal shielding in most automotive layouts.
Is the MLX90372GDC-ACC-300-RE pin-compatible with newer revisions like ACE-300?
Yes, the MLX90372GDC-ACC-300-RE is pin-compatible with MLX90372GDC-ACE-300-RE - both use identical SOIC-8 package, pinout, and electrical interface. No PCB layout change is required when migrating from ACC to ACE revision. Functional differences (e.g., reduced safe startup time, enhanced diagnostics) are enabled by firmware programming and do not affect physical or electrical compatibility.
MLX90372GDC-ACC-300-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:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- SENT
- Output Signal:
- Programmable
- 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 ~ 160°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90372GDC-ACC-300-RE FAQ
1.How can I place an order for MLX90372GDC-ACC-300-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90372GDC-ACC-300-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 MLX90372GDC-ACC-300-RE reliable?
The price and inventory of MLX90372GDC-ACC-300-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90372GDC-ACC-300-RE is usually 5 days.
3.What payment methods are accepted for MLX90372GDC-ACC-300-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90372GDC-ACC-300-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90372GDC-ACC-300-RE?
MLX90372GDC-ACC-300-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90372GDC-ACC-300-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 MLX90372GDC-ACC-300-RE?
For technical support, including MLX90372GDC-ACC-300-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90372GDC-ACC-300-RE requirements.
6.How does Aetrix verify that MLX90372GDC-ACC-300-RE is sourced from the original manufacturer or authorized distributors?
All MLX90372GDC-ACC-300-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 MLX90372GDC-ACC-300-RE meets industry standards.
7.What is the process for return or replacement of MLX90372GDC-ACC-300-RE?
All MLX90372GDC-ACC-300-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90372GDC-ACC-300-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 MLX90372GDC-ACC-300-RE part is unused and in its original packaging.
Return procedure for MLX90372GDC-ACC-300-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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