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Melexis Technologies NV MLX90372GDC-ACC-100-SP
- Part No.:
- MLX90372GDC-ACC-100-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90372GDC-ACC-100-SP.pdf
- Description:
- SENSOR ROTRY/LNR ANLG/PWM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,462
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Product details
Overview
MLX90372GDC-ACC-100-SP from Melexis is a monolithic Triaxis® Hall-based magnetic position processor IC for absolute rotary/linear position sensing. It delivers SENT or PWM output, operates from -40°C to +160°C, supports ISO26262 ASIL-C functional safety, and uses SOIC-8 packaging with stray-field immunity for angular applications.
For engineers reviewing the MLX90372GDC-ACC-100-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, pin-level design meaning, automotive-grade accuracy specs, and validated alternative options for pedal, throttle, and steering wheel position sensing.
Technical Context
The MLX90372GDC-ACC-100-SP implements Triaxis® Hall sensing of Bx, By, and Bz magnetic field components to compute absolute angle (0–360°) or linear displacement without contact. Its on-chip DSP performs real-time signal conditioning, piecewise linear (PWL) transfer function mapping, and SENT frame encoding per SAE J2716 APR2016.
It features dual-die isolation only in TSSOP-16 variants-not applicable here-while this SOIC-8 ACC-100 version targets stray-field immune angular sensing with factory-programmed 4-point PWL calibration, SENT 3µs timing mode, and integrated diagnostics including intelligent watchdog (TIWD = 20 ms) and fail-safe state activation within 11.9 ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | -40°C to +160°C - Enables under-hood automotive deployment without external thermal derating. |
| Supply Voltage | 4.5–5.5 V - Compatible with regulated 5 V rail; supports battery mode (6–18 V) via configuration. |
| Output Interface | SENT or PWM - SENT frames include CRC, error codes, and user-defined values; PWM duty cycle encodes position. |
| Accuracy | ±0.3° typical angular error - Validated for stray-field immune rotary mode (-100 option code) with calibrated magnet path. |
| Functional Safety | ISO26262 ASIL-C SEooC - Provides safety mechanisms (watchdog, memory ECC, diagnostics) as element out of context. |
| Package | SOIC-8 - RoHS-compliant surface-mount package with defined sensitive spot positioning per datasheet Fig. 18.3. |
| Magnetic Immunity | Stray-field immune (low-field variant) - Designed for robust operation in high-EMI environments like engine compartments. |
Pinout & Package
MLX90372GDC-ACC-100-SP uses SOIC-8 package (RoHS), with pins 1–8 arranged per Melexis datasheet Section 3.1. Pins Input and Test are internally grounded; unused pins 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 reference (VDEC). |
| 2 - Input | Test or auxiliary input | Internally grounded in application; connect to GND for EMC; not used in standard angular sensing mode. |
| 3 - Test | Test or auxiliary input | Internally grounded in application; connect to GND for EMC; reserved for factory test or diagnostics. |
| 4 - N.C. | No connection | Not bonded; must be tied to ground on PCB to minimize noise coupling. |
| 5 - OUT | Digital output driver | Push-pull SENT/PWM output; supports 3–55 kΩ pull-up; short-circuit protected (3 µs response). |
| 6 - VSS | Digital ground | Reference for digital logic and output stage; separate from analog ground (Pin 8) to reduce noise coupling. |
| 7 - VDEC | Decoupling terminal | Connect 100 nF ceramic capacitor to VSS for internal analog voltage regulation stability. |
| 8 - VSS | Analog ground | Reference for Hall front-end and ADC; must be star-connected to minimize analog noise injection. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall Sensing | Measures Bx, By, Bz simultaneously to resolve absolute angle or linear position without mechanical wear or contact. |
| Programmable PWL Transfer | Factory-configured 4-point piecewise linear mapping enables precise angular linearity correction across 0–360° range. |
| SENT Protocol Compliance | SAE J2716 APR2016-compliant frames include CRC, status bits, and configurable diagnostic data for ECU validation. |
| Stray-Field Immunity | Optimized magnetic front-end and IMC structure reject interference from nearby motors or solenoids in engine bay deployments. |
| ASIL-C Functional Safety | Includes hardware watchdog (TIWD = 20 ms), memory ECC, startup self-test, and fail-safe output assertion within 11.9 ms. |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Detect accelerator or brake pedal angular displacement in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Absolute rotary position processor delivering SENT frames at 100 Hz update rate with CRC-protected payload. Use Value: Eliminates potentiometer wear and contact bounce; ±0.3° accuracy ensures precise torque demand mapping to engine control unit. | Use Scenario: Monitor throttle valve angle in gasoline direct injection systems under high-temperature hood conditions. IC Role / Device Role / Timing Role: Stray-field immune magnetic sensor operating at 160°C junction temperature with SENT output synchronized to ECU timing. Use Value: Maintains signal integrity near ignition coils and alternators; ASIL-C diagnostics support fail-operational throttle control strategies. |
| Steering Wheel Position Sensing | Ride Height Control |
Use Scenario: Measure steering angle for EPS assist and ADAS lane-keeping functions in electric and hybrid platforms. IC Role / Device Role / Timing Role: High-reliability angular sensor with fail-safe output assertion and 20 ms watchdog timeout for real-time safety monitoring. Use Value: Enables torque overlay and redundancy checks against other sensors; SOIC-8 footprint simplifies integration into compact column modules. | Use Scenario: Determine suspension travel in adaptive air ride systems for luxury and off-road vehicles. IC Role / Device Role / Timing Role: Linear position processor configured for non-contact float-level or rod-end displacement detection using custom magnet geometry. Use Value: Resolves sub-millimeter travel with stable output over 10+ year service life; immune to moisture, dust, and vibration-induced drift. |
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-100-RE | Same SOIC-8 package and -100 stray-field immune configuration, but ACE revision replaces ACC; includes enhanced diagnostics and updated firmware. | Identical angular sensing use case; supports same magnetic circuit and SENT timing. | Select ACE-100 for new designs-ACC is not recommended for new designs per Melexis documentation. |
| MLX90363GSE-AAA-000-SP | Single-die SOIC-8 Hall switch (not position processor); outputs digital ON/OFF only; no SENT/PWM programmability or DSP processing. | Limited to threshold-based detection (e.g., end-stop), not absolute position reporting. | Use only where binary state suffices; cannot replace MLX90372GDC-ACC-100-SP in closed-loop control loops requiring analog-equivalent resolution. |
Compared with MLX90372GDC-ACC-100-SP, the ACE-100 offers improved diagnostic coverage and lifecycle support, while the MLX90363 provides cost-effective switching but lacks position computation, SENT protocol, or ASIL-C capability-making it unsuitable for safety-critical angular feedback.
Availability
MLX90372GDC-ACC-100-SP is available at Aetrix Electronics and suitable for automotive pedal position, throttle control, and steering angle sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90372GDC-ACC-100-SP 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 global automotive qualification and AEC-Q100 leadership.
The MLX90372 product line delivers Triaxis®-based absolute position processors for non-contacting, high-accuracy angular and linear sensing in safety-critical automotive subsystems.
FAQ
What is the operating temperature range of the MLX90372GDC-ACC-100-SP?
The MLX90372GDC-ACC-100-SP operates from -40°C to +160°C ambient temperature, meeting AEC-Q100 Grade 0 requirements. This range is validated for continuous operation in engine compartment and transmission control environments. The junction temperature limit is +175°C, and thermal performance data for SOIC-8 is provided in Section 18.17 of the datasheet. MLX90372GDC-ACC-100-SP maintains full functionality-including SENT output and diagnostics-across this entire range.
Does the MLX90372GDC-ACC-100-SP support both SENT and PWM output modes?
Yes, the MLX90372GDC-ACC-100-SP supports both SENT and PWM output modes via end-user programming. Factory default is SENT with 3 µs tick time (per ordering code -ACC-100). PWM mode provides duty-cycle-modulated position data compatible with standard microcontroller capture inputs. Switching between modes requires reprogramming via Melexis' PTC interface and does not require hardware changes. MLX90372GDC-ACC-100-SP retains all diagnostics and ASIL-C safety features in either mode.
Is the MLX90372GDC-ACC-100-SP pin-compatible with newer ACE-revision devices?
Yes, the MLX90372GDC-ACC-100-SP is pin-compatible with MLX90372GDC-ACE-100-RE and other SOIC-8 variants in the same family. All share identical SOIC-8 pinout (VDD, Input, Test, N.C., OUT, VSS, VDEC, VSS), mechanical footprint, and soldering profile. However, ACC is not recommended for new designs; ACE revision adds enhanced diagnostics, updated firmware, and extended lifecycle support. MLX90372GDC-ACC-100-SP can be replaced by ACE-100 without PCB modification.
What magnetic configurations are supported by the MLX90372GDC-ACC-100-SP?
The MLX90372GDC-ACC-100-SP is configured for stray-field immune angular rotary sensing (option code -100), optimized for low-field magnet arrangements with immunity to external magnetic interference. It supports 0–360° absolute angle measurement using axial or side-shaft magnet topologies. Magnetic sensitivity, linearity, and stray-field rejection are validated per Section 8.1 of the datasheet. MLX90372GDC-ACC-100-SP does not support linear or high-field variants without reprogramming and recalibration.
How is functional safety implemented in the MLX90372GDC-ACC-100-SP?
The MLX90372GDC-ACC-100-SP implements ISO26262 ASIL-C as a Safety Element out of Context (SEooC), including hardware watchdog (TIWD = 20 ms), memory ECC, startup self-test, and fail-safe output assertion within 11.9 ms of fault detection. Diagnostic coverage is documented in the Melexis Safety Manual (document ID MLX-SM-90372). No external safety controller is required for ASIL-C compliance when used per safety concept. MLX90372GDC-ACC-100-SP integrates these mechanisms directly into the single-die SOIC-8 IC.
MLX90372GDC-ACC-100-SP 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:
- 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-100-SP FAQ
1.How can I place an order for MLX90372GDC-ACC-100-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90372GDC-ACC-100-SP 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-100-SP reliable?
The price and inventory of MLX90372GDC-ACC-100-SP 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-100-SP is usually 5 days.
3.What payment methods are accepted for MLX90372GDC-ACC-100-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90372GDC-ACC-100-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90372GDC-ACC-100-SP?
MLX90372GDC-ACC-100-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90372GDC-ACC-100-SP 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-100-SP?
For technical support, including MLX90372GDC-ACC-100-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90372GDC-ACC-100-SP requirements.
6.How does Aetrix verify that MLX90372GDC-ACC-100-SP is sourced from the original manufacturer or authorized distributors?
All MLX90372GDC-ACC-100-SP 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-100-SP meets industry standards.
7.What is the process for return or replacement of MLX90372GDC-ACC-100-SP?
All MLX90372GDC-ACC-100-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90372GDC-ACC-100-SP, 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-100-SP part is unused and in its original packaging.
Return procedure for MLX90372GDC-ACC-100-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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