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

Melexis Technologies NV MLX90373KVS-ABA-103-RX

Name: MLX90373KVS-ABA-103-RX
Brand: Melexis Technologies NV
SKU: MLX90373KVS-ABA-103-RX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90373KVS-ABA-103-RX

Manufacturer:: Melexis Technologies NV

Category:: Angle, Linear Position Measuring

Package:: 4-SIP Module, Formed Leads

Datasheet:: MLX90373KVS-ABA-103-RX.pdf

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

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Product details

Overview

MLX90373KVS-ABA-103-RX from Melexis is a Triaxis® Hall-based absolute rotary position processor IC in DMP-4 package, delivering stray-field immune angle sensing up to 180° with ±0.85° total angular drift over −40°C to +125°C, 2-wire PSI5 v1.3/v2.1 output, and AEC-Q100 Grade 0 qualification for automotive throttle and pedal position sensing.

For engineers reviewing the MLX90373KVS-ABA-103-RX datasheet, pinout, applications, or equivalent options, this page provides verified functional context, validated pin definitions for DMP-4, real-world accuracy specs under stray-field immunity mode, and confirmed alternatives for angular position sensing in safety-critical automotive systems.

Technical Context

The MLX90373KVS-ABA-103-RX implements Triaxis® technology to measure all three magnetic field components (BX, BY, BZ), enabling robust decoding of absolute angular position from magnet motion using in-plane field gradient (∆BXY/∆XY) as the primary signal. Its architecture includes on-chip DSP, programmable multi-point linearization (up to 32 points), and dual-stage watchdogs (IWD/AWD) compliant with ISO 26262 SEooC ASIL-C.

Operating in Rotary Stray-Field Immune mode (indicated by option code "-103"), it rejects external magnetic interference up to 5 mT (4 kA/m) per ISO 11452-8 while maintaining ≤0.6° output error, and uses PSI5 communication with 300–500 µs cycle time, 850 µs latency, and 1480–2125 µs worst-case step response - all validated for DMP-4 package at full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Temp Range	−40°C to +125°C - qualified for under-hood automotive environments without derating.
PSI5 Protocol Support	v1.3 and v2.1 - enables interoperability with modern ECU sensor interfaces using 2-wire current modulation.
Stray-Field Immunity	Up to 5 mT (4 kA/m) - maintains ≤0.6° angular error under ISO 11452-8 test conditions.
Total Angular Drift	±0.85° - peak-to-peak drift over lifetime and temperature, referenced to 35°C, valid under nominal magnetic conditions.
Supply Voltage Range	6 V to 18 V - supports wide-input automotive battery systems with integrated undervoltage detection (3.7–4.1 V thresholds).
Quiescent Current	10–13.5 mA - specified for Rotary Stray-Field Immune mode, enabling low-power operation in always-on systems.
Latency	850 µs - fixed delay between magnet movement and PSI5 data frame output, critical for closed-loop control timing.

Pinout & Package

DMP-4 is a PCB-less dual-mold package with 4 terminals, optimized for direct solder-mounting onto flex or rigid PCBs with minimal footprint and no internal substrate. It features face-down tape-and-reel delivery (RX variant) and requires external decoupling only via VDD/VSS loop.

Pin/Terminal	Circuit Role	Design Meaning
1	VSS	Ground return path for both analog and digital domains; must be connected to system ground for EMC compliance.
2	VDD	Supply input and PSI5 data output line - carries bidirectional current-modulated signals during active communication.
3	N.C.	No internal connection - must be left unconnected; floating or tied to ground per layout best practice.
4	VSS	Second ground terminal - improves thermal dissipation and reduces ground impedance in high-noise environments.

Key Features

Feature	Design Value
Triaxis® Hall Sensing	Simultaneous BX/BY/BZ measurement enables true 3D magnetic field analysis for stray-field immune angular decoding.
Programmable Transfer Characteristic	Supports 4-, 8-, 17-, or 32-point piecewise-linear calibration - allows end-user compensation of mechanical nonlinearity and magnet tolerance.
AEC-Q100 Grade 0	Qualified for −40°C to +150°C junction operation - meets automotive powertrain and chassis system reliability requirements.
ISO 26262 SEooC ASIL-C	Delivers certified safety mechanisms including dual watchdogs, memory ECC, and diagnostic coverage for sensor output integrity.
48-bit ID Number	Enables unique device identification and traceability across production batches - supports secure firmware updates and counterfeit prevention.

Applications

Throttle Position Sensing	Pedal Position Sensing
Use Scenario: Real-time detection of accelerator or brake pedal rotation within 0–90° mechanical range under vibration and thermal cycling. IC Role / Device Role / Timing Role: Absolute angular position processor providing PSI5-synchronized output with <2.125 µs step response for ECU torque mapping. Use Value: Enables precise engine load control and regenerative braking coordination with ±0.85° total drift stability over vehicle lifetime.	Use Scenario: Contactless measurement of driver input angle in electric power-assisted steering (EPAS) or brake-by-wire systems. IC Role / Device Role / Timing Role: Stray-field immune position sensor rejecting interference from nearby motors and solenoids while delivering ASIL-C-compliant output. Use Value: Maintains ≤0.6° angular error under 4 kA/m stray fields per ISO 11452-8, ensuring functional safety integrity in redundant architectures.
Steering Wheel Position Sensing	Ride Height Control
Use Scenario: Monitoring absolute steering angle across full 360° rotation with zero-crossing detection for lane-keeping assist (LKA) and electronic stability control (ESC). IC Role / Device Role / Timing Role: Triaxis® position processor generating calibrated angle data via PSI5 interface with 850 µs latency for real-time vehicle dynamics control. Use Value: Supports multi-point linearization to correct for gear backlash and magnet misalignment, improving LKA activation precision.	Use Scenario: Detecting suspension travel in air or hydraulic ride height systems where compact size and magnetic immunity are critical. IC Role / Device Role / Timing Role: Compact DMP-4 packaged position sensor mounted directly on suspension linkages, operating in harsh under-vehicle environments. Use Value: DMP-4's PCB-less construction eliminates substrate warpage risk, ensuring stable calibration across −40°C to +125°C ambient extremes.

Throttle Position Sensing

Pedal Position Sensing

Use Scenario: Real-time detection of accelerator or brake pedal rotation within 0–90° mechanical range under vibration and thermal cycling.

IC Role / Device Role / Timing Role: Absolute angular position processor providing PSI5-synchronized output with <2.125 µs step response for ECU torque mapping.

Use Value: Enables precise engine load control and regenerative braking coordination with ±0.85° total drift stability over vehicle lifetime.

Use Scenario: Contactless measurement of driver input angle in electric power-assisted steering (EPAS) or brake-by-wire systems.

IC Role / Device Role / Timing Role: Stray-field immune position sensor rejecting interference from nearby motors and solenoids while delivering ASIL-C-compliant output.

Use Value: Maintains ≤0.6° angular error under 4 kA/m stray fields per ISO 11452-8, ensuring functional safety integrity in redundant architectures.

Steering Wheel Position Sensing

Ride Height Control

Use Scenario: Monitoring absolute steering angle across full 360° rotation with zero-crossing detection for lane-keeping assist (LKA) and electronic stability control (ESC).

IC Role / Device Role / Timing Role: Triaxis® position processor generating calibrated angle data via PSI5 interface with 850 µs latency for real-time vehicle dynamics control.

Use Value: Supports multi-point linearization to correct for gear backlash and magnet misalignment, improving LKA activation precision.

Use Scenario: Detecting suspension travel in air or hydraulic ride height systems where compact size and magnetic immunity are critical.

IC Role / Device Role / Timing Role: Compact DMP-4 packaged position sensor mounted directly on suspension linkages, operating in harsh under-vehicle environments.

Use Value: DMP-4's PCB-less construction eliminates substrate warpage risk, ensuring stable calibration across −40°C to +125°C ambient extremes.

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
MLX90373KGO-ABA-103-RE	TSSOP-16 dual-die package with full hardware redundancy and isolation resistance >4 MΩ between dice.	Required for ASIL-D systems needing fault-tolerant dual-channel architecture; not pin-compatible with DMP-4.	Select when functional safety demands hardware-level redundancy beyond SEooC ASIL-C.
MLX90373KDC-ABA-103-RE	SOIC-8 single-die package with standard leadframe, 8-pin footprint, and identical electrical specs but different thermal profile.	Suitable for legacy PCB layouts or cost-sensitive modules where DMP-4 mounting constraints are prohibitive.	Choose for drop-in replacement in existing SOIC-8 footprints without redesigning flex or rigid board interfaces.

Compared with MLX90373KVS-ABA-103-RX, the TSSOP-16 alternative adds physical redundancy for higher ASIL targets but increases board area and cost, while the SOIC-8 version retains identical sensing performance in a conventional surface-mount package - making DMP-4 optimal for space-constrained, high-immunity applications requiring minimal assembly steps.

Availability

MLX90373KVS-ABA-103-RX is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position sensing, and steering wheel angle monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MLX90373KVS-ABA-103-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 medical markets, with core expertise in magnetic sensing and embedded signal processing.

The MLX90373 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive subsystems, designed specifically to replace contact-based potentiometers and meet stringent AEC-Q100 and ISO 26262 requirements.

FAQ

What is the key functional difference indicated by the "-103" option code in MLX90373KVS-ABA-103-RX?

The "-103" option code specifies Rotary Stray-Field Immune operation with Trim-and-Form STD2 2.54 lead configuration for the DMP-4 package. This mode configures the MLX90373KVS-ABA-103-RX to use in-plane magnetic field gradient (∆BXY/∆XY) as its primary signal, enabling robust 0–180° angular measurement with ≤0.6° error under 4 kA/m stray fields per ISO 11452-8 - distinct from legacy -30x modes that rely on BNorm.

Does MLX90373KVS-ABA-103-RX support programmable linearization, and how is it implemented?

Yes, MLX90373KVS-ABA-103-RX supports end-user programmable transfer characteristics with up to 32-point piecewise-linear (PWL) calibration stored in NVRAM. This is implemented via PTC (Programming Through Connector) using Melexis' PTCSW software, allowing correction of mechanical tolerances, magnet nonlinearity, and thermal drift without modifying hardware - a capability confirmed in Section 13.1 of the datasheet.

What is the PSI5 communication behavior of MLX90373KVS-ABA-103-RX during power-up and initialization?

MLX90373KVS-ABA-103-RX requires ≥5 ms startup time before transmitting PSI5 frames, extending to 20.5 ms when all diagnostics are enabled. During initialization, it performs two phases: Phase I establishes basic communication, and Phase II loads calibration data and user settings. No valid PSI5 data is transmitted until Phase II completes - a timing sequence verified in Table 9 and Section 11.6 of the datasheet.

How does the DMP-4 package of MLX90373KVS-ABA-103-RX impact thermal and mechanical design?

The DMP-4 package of MLX90373KVS-ABA-103-RX eliminates internal PCB substrate, reducing thermal resistance and eliminating CTE mismatch risks. Its dual-ground terminals (Pins 1 and 4) lower ground impedance, while face-down RX tape-and-reel orientation ensures consistent solder joint formation on flex circuits - validated in Package Information Section 18.2 and Application Diagram Figure 15.2.

Is MLX90373KVS-ABA-103-RX qualified for functional safety applications, and what level is certified?

Yes, MLX90373KVS-ABA-103-RX is certified as a Safety Element out of Context (SEooC) meeting ISO 26262 ASIL-C requirements. This includes integrated safety mechanisms such as dual watchdogs (IWD/AWD), memory ECC, diagnostic coverage for ADC/DSP paths, and failure mode analysis documented in Section 14 - enabling its use in ASIL-C automotive systems like throttle and brake position sensing without additional hardware redundancy.

MLX90373KVS-ABA-103-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-103-RX FAQ

1.How can I place an order for MLX90373KVS-ABA-103-RX through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90373KVS-ABA-103-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-103-RX reliable?

The price and inventory of MLX90373KVS-ABA-103-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-103-RX is usually 5 days.

3.What payment methods are accepted for MLX90373KVS-ABA-103-RX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90373KVS-ABA-103-RX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90373KVS-ABA-103-RX?

MLX90373KVS-ABA-103-RX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90373KVS-ABA-103-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-103-RX?

For technical support, including MLX90373KVS-ABA-103-RX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90373KVS-ABA-103-RX requirements.

6.How does Aetrix verify that MLX90373KVS-ABA-103-RX is sourced from the original manufacturer or authorized distributors?

All MLX90373KVS-ABA-103-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-103-RX meets industry standards.

7.What is the process for return or replacement of MLX90373KVS-ABA-103-RX?

All MLX90373KVS-ABA-103-RX units undergo pre-shipment inspection (PSI). If there is an issue with MLX90373KVS-ABA-103-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-103-RX part is unused and in its original packaging.

Return procedure for MLX90373KVS-ABA-103-RX:

1.Submit a request within 90 days.

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

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