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Home > Products > Sensors, Transducers > Position Sensors > Angle, Linear Position Measuring

Melexis Technologies NV MLX90373KVS-ABA-108-RX

Name: MLX90373KVS-ABA-108-RX
Brand: Melexis Technologies NV
SKU: MLX90373KVS-ABA-108-RX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90373KVS-ABA-108-RX

Manufacturer:: Melexis Technologies NV

Category:: Angle, Linear Position Measuring

Package:: 4-SIP Module, Formed Leads

Datasheet:: MLX90373KVS-ABA-108-RX.pdf

Description:: SENSOR ROTRY/LNEAR ANLG/PWM 4DMP

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Product details

Overview

MLX90373KVS-ABA-108-RX from Melexis is a Triaxis® position processor IC for absolute angular position sensing in stray-field immune rotary configurations, featuring 2-wire PSI5 v2.1 output, AEC-Q100 Grade 0 qualification (−40°C to +125°C), ±0.85° total angle drift over temperature, and DMP-4 PCB-less package with dual ground pins. It decodes magnet motion via B_X, B_Y, B_Z field components for automotive throttle and steering wheel position sensing.

For engineers reviewing the MLX90373KVS-ABA-108-RX datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, PSI5 timing constraints, stray-field immunity up to 4 kA/m, angular accuracy specs, and validated alternatives for automotive functional safety (ASIL-C) designs.

Technical Context

The MLX90373KVS-ABA-108-RX implements Triaxis® Hall sensing with on-chip DSP to compute absolute angle from 3-axis magnetic flux density (B_X, B_Y, B_Z) using integrated magnetic concentrators (IMC). Its -108 option code configures it exclusively for Rotary Stray-Field Immune mode, requiring ≥4.1 mT/mm useful magnetic gradient and rejecting stray fields up to 4 kA/m per ISO 11452-8.

It communicates via 2-wire PSI5 v2.1 over supply lines with configurable cycle time (300–500 µs), supports end-user programmable transfer characteristics (up to 32-point PWL), and integrates dual watchdogs (IWD/AWD) with 20 ms timeout for ISO 26262 SEooC ASIL-C compliance. The DMP-4 package uses two VSS pins for EMC robustness and eliminates PCB substrate.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Protocol	PSI5 v2.1 compliant 2-wire interface over supply line; enables daisy-chain sensor networks without dedicated data lines.
Operating Temp Range	−40°C to +125°C; qualified to AEC-Q100 Grade 0 for under-hood automotive use.
Angle Accuracy	±0.85° total drift over temperature (relative to 35°C); validated after HTOL aging under nominal stray-field immune conditions.
Stray Field Immunity	Robust to 4 kA/m (5 mT) external magnetic fields from any direction; maintains ≤0.6° error with 10 mT/mm useful gradient per ISO 11452-8:2015.
Supply Voltage Range	6–18 V during PSI5 communication; supports wide automotive battery range including load-dump transients.
Quiescent Current	10–13.5 mA typical; optimized for low-power rotary position sensing in always-on vehicle subsystems.
Functional Safety	ISO 26262 SEooC ASIL-C certified; includes dual watchdogs, CRC-protected memory, and diagnostic coverage for sensor health monitoring.

Pinout & Package

DMP-4 is a PCB-less dual-mold package with 4 terminals: two ground (VSS) pins for enhanced EMC, one combined supply/PSI5-output (VDD), and one not-connected (N.C.) terminal. No internal decoupling capacitor required due to integrated regulation.

Pin/Terminal	Circuit Role	Design Meaning
1	VSS	Ground reference; dual VSS pins reduce impedance and improve noise immunity in high-EMI environments.
2	VDD	Supply input and PSI5 data output node; supports bidirectional current modulation for 2-wire communication.
3	N.C.	No internal connection; must be left floating or tied to ground per EMC best practice.
4	VSS	Second ground terminal; provides symmetrical return path and minimizes ground loop area.

Key Features

Feature	Design Value
Triaxis® 3-Axis Sensing	Simultaneous measurement of B_X, B_Y, B_Z enables true absolute angle calculation without mechanical cam or multi-magnet assemblies.
Stray-Field Immune Mode	Uses magnetic gradient (∆B_XY/∆XY) instead of absolute field magnitude-rejects uniform interference up to 4 kA/m while tracking target magnet motion.
Programmable Transfer Curve	Supports 4-, 8-, or 32-point piecewise-linear (PWL) calibration to compensate for mechanical nonlinearity and magnet tolerances in production.
Dual Watchdog Architecture	Independent Intelligent (IWD) and Absolute (AWD) watchdogs with 20 ms timeout ensure fail-safe behavior in ASIL-C systems.
DMP-4 PCB-less Construction	Eliminates FR4 substrate parasitics and solder joint reliability risks; reduces assembly cost and improves thermal coupling to heatsink or housing.

Applications

Throttle Position Sensing	Steering Wheel Angle Sensing
Use Scenario: Real-time detection of accelerator pedal rotation in gasoline/diesel powertrains with ECU feedback control. IC Role / Device Role / Timing Role: Absolute angle sensor providing 12-bit PSI5 output at 2 kHz frame rate with <2.125 µs worst-case step response. Use Value: Enables closed-loop engine torque management with ±0.85° accuracy across full −40°C to +125°C ambient range and immunity to alternator stray fields.	Use Scenario: Contactless measurement of steering column rotation for EPS assist and ADAS lane-keeping functions. IC Role / Device Role / Timing Role: Stray-field immune position processor delivering ASIL-C compliant angle data via PSI5 to domain controller. Use Value: Maintains <0.6° error under 4 kA/m stray fields from adjacent motors or solenoids-critical for functional safety integrity.
Pedal Position Sensing	Ride Height Control
Use Scenario: Brake and clutch pedal travel monitoring in brake-by-wire and automated manual transmission systems. IC Role / Device Role / Timing Role: High-reliability angular sensor with dual watchdogs and NVRAM-programmable diagnostics for fault reporting. Use Value: Supports ISO 26262 hardware-level requirements with end-of-line calibration traceability and 48-bit unique ID for component tracking.	Use Scenario: Suspension height feedback in adaptive air ride systems using rotary cam or linear actuator linkage. IC Role / Device Role / Timing Role: Absolute position processor interfacing directly to chassis ECU via PSI5 bus with minimal wiring harness complexity. Use Value: DMP-4 package allows direct mounting to suspension knuckle with no PCB-reducing failure modes and enabling IP67 sealing.

Throttle Position Sensing

Steering Wheel Angle Sensing

Use Scenario: Real-time detection of accelerator pedal rotation in gasoline/diesel powertrains with ECU feedback control.

IC Role / Device Role / Timing Role: Absolute angle sensor providing 12-bit PSI5 output at 2 kHz frame rate with <2.125 µs worst-case step response.

Use Value: Enables closed-loop engine torque management with ±0.85° accuracy across full −40°C to +125°C ambient range and immunity to alternator stray fields.

Use Scenario: Contactless measurement of steering column rotation for EPS assist and ADAS lane-keeping functions.

IC Role / Device Role / Timing Role: Stray-field immune position processor delivering ASIL-C compliant angle data via PSI5 to domain controller.

Use Value: Maintains <0.6° error under 4 kA/m stray fields from adjacent motors or solenoids-critical for functional safety integrity.

Pedal Position Sensing

Ride Height Control

Use Scenario: Brake and clutch pedal travel monitoring in brake-by-wire and automated manual transmission systems.

IC Role / Device Role / Timing Role: High-reliability angular sensor with dual watchdogs and NVRAM-programmable diagnostics for fault reporting.

Use Value: Supports ISO 26262 hardware-level requirements with end-of-line calibration traceability and 48-bit unique ID for component tracking.

Use Scenario: Suspension height feedback in adaptive air ride systems using rotary cam or linear actuator linkage.

IC Role / Device Role / Timing Role: Absolute position processor interfacing directly to chassis ECU via PSI5 bus with minimal wiring harness complexity.

Use Value: DMP-4 package allows direct mounting to suspension knuckle with no PCB-reducing failure modes and enabling IP67 sealing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar absolute angular position sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MLX90371KGO-ABA-100-RE	TSSOP-16 dual-die redundant architecture; higher isolation resistance (4 MΩ between dice); 4.1–6 V PSI5 operating range.	Targeted at ASIL-D systems requiring full hardware redundancy; requires PCB layout and larger footprint than DMP-4.	Select when dual-die fault tolerance is mandated; not drop-in due to different package, pin count, and voltage range.
MLX90372KVS-ABA-100-RX	Same DMP-4 package and PSI5 interface but legacy (-100) configuration; lacks stray-field immune gradient-based algorithm.	Suitable for shielded environments only; cannot reject 4 kA/m stray fields-requires magnetic shielding in high-EMI zones.	Choose only if cost sensitivity outweighs stray-field immunity needs; shares same mechanical fit but differs in firmware and calibration.

Compared with MLX90373KVS-ABA-108-RX, the MLX90371KGO-ABA-100-RE offers hardware redundancy at the expense of size and voltage compatibility, while the MLX90372KVS-ABA-100-RX matches form factor but sacrifices stray-field resilience-making MLX90373KVS-ABA-108-RX the sole choice for unshielded automotive rotary sensing where ISO 11452-8 compliance is mandatory.

Availability

MLX90373KVS-ABA-108-RX is available at Aetrix Electronics and suitable for automotive throttle position, steering angle, pedal position, and ride height control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100/ASIL-C compliance.

Supply support for MLX90373KVS-ABA-108-RX 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, industrial, and consumer markets, with core expertise in magnetic sensing and embedded signal processing.

The MLX90373 belongs to Melexis' Triaxis® position processor product line, designed specifically for contactless absolute angular and linear position sensing in harsh automotive environments with functional safety and EMC robustness as primary objectives.

FAQ

What is the key functional distinction of MLX90373KVS-ABA-108-RX versus other MLX90373 variants?

The MLX90373KVS-ABA-108-RX is configured exclusively for Rotary Stray-Field Immune operation (option code -108), using magnetic gradient (∆B_XY/∆XY) rather than absolute field strength to determine angle. This enables reliable operation under 4 kA/m stray fields per ISO 11452-8-unlike -30x legacy variants that require magnetic shielding. Its DMP-4 package further enhances EMC performance in compact installations.

Does MLX90373KVS-ABA-108-RX support PSI5 v1.3 and v2.1 simultaneously?

Yes, MLX90373KVS-ABA-108-RX is fully compatible with both PSI5 v1.3 and v2.1 specifications. It implements the standard 2-wire current-modulated interface with configurable cycle time (300–500 µs), sync pulse hold time (≥9 µs), and frame structure-ensuring interoperability with legacy and next-generation ECUs without firmware changes.

What is the maximum allowable stray magnetic field for MLX90373KVS-ABA-108-RX before accuracy degrades?

MLX90373KVS-ABA-108-RX maintains ≤0.6° angular error under 4 kA/m (5 mT) uniform stray fields from any direction, as verified per ISO 11452-8:2015. Performance remains nominal as long as the useful magnetic gradient exceeds 4.1 mT/mm; below that threshold, limited accuracy applies per datasheet Section 8.1.

Can MLX90373KVS-ABA-108-RX be calibrated in-system without dedicated programming hardware?

Yes, MLX90373KVS-ABA-108-RX supports Programming Through Connector (PTC) via its PSI5 interface, enabling end-user calibration-including multi-point transfer curve definition, filter settings, and diagnostics-using standard ECU tools and no external programmers. All programmable parameters reside in NVRAM with ECC protection.

Is the DMP-4 package of MLX90373KVS-ABA-108-RX lead-free and RoHS-compliant?

Yes, MLX90373KVS-ABA-108-RX is manufactured in a RoHS-compliant DMP-4 package with lead-free terminations. The dual-mold construction uses matte tin plating and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3), supporting standard reflow profiles without popcorn risk.

MLX90373KVS-ABA-108-RX Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Package/Case:: 4-SIP Module, Formed Leads

Series:: Triaxis®

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Programmable:: -

For Measuring:: Rotary Position

Technology:: Hall Effect

Rotation Angle - Electrical, Mechanical:: 0° ~ 360°, Continuous

Linear Range:: -

Output:: Analog Voltage

Output Signal:: Programmable

Actuator Type:: External Magnet, Not Included

Linearity:: ±1°

Resistance:: -

Resistance Tolerance:: -

Voltage - Supply:: 6V ~ 18V

Mounting Type:: Through Hole

Termination Style:: PC Pin

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Supplier Device Package:: 4-DMP

MLX90373KVS-ABA-108-RX FAQ

1.How can I place an order for MLX90373KVS-ABA-108-RX through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90373KVS-ABA-108-RX 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 MLX90373KVS-ABA-108-RX reliable?

The price and inventory of MLX90373KVS-ABA-108-RX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90373KVS-ABA-108-RX is usually 5 days.

3.What payment methods are accepted for MLX90373KVS-ABA-108-RX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90373KVS-ABA-108-RX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90373KVS-ABA-108-RX?

MLX90373KVS-ABA-108-RX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90373KVS-ABA-108-RX 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 MLX90373KVS-ABA-108-RX?

For technical support, including MLX90373KVS-ABA-108-RX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90373KVS-ABA-108-RX requirements.

6.How does Aetrix verify that MLX90373KVS-ABA-108-RX is sourced from the original manufacturer or authorized distributors?

All MLX90373KVS-ABA-108-RX 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 MLX90373KVS-ABA-108-RX meets industry standards.

7.What is the process for return or replacement of MLX90373KVS-ABA-108-RX?

All MLX90373KVS-ABA-108-RX units undergo pre-shipment inspection (PSI). If there is an issue with MLX90373KVS-ABA-108-RX, 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 MLX90373KVS-ABA-108-RX part is unused and in its original packaging.

Return procedure for MLX90373KVS-ABA-108-RX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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