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Melexis Technologies NV MLX90421GVS-ADC-003-RX
- Part No.:
- MLX90421GVS-ADC-003-RX
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SSIP Module
- Datasheet:
-
MLX90421GVS-ADC-003-RX.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMP
- Quantity:
- Payment:
- Shipping:
Inventory:2,165
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Product details
Overview
MLX90421GVS-ADC-003-RX from Melexis is a Triaxis® monolithic magnetic position sensor IC for absolute rotary position sensing, featuring ratiometric analog or PWM output, programmable 17-point linearization, and ISO26262 ASIL B safety certification. It operates from -40°C to +160°C, uses Bx/By/Bz magnetic field components for contactless angle calculation (0–360°), and is packaged in RoHS-compliant DMP-4 (VS) with trim-and-form STD2 2.54 mm leads.
For engineers reviewing the MLX90421GVS-ADC-003-RX datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DMP-4), confirmed pin functions (VSS/VDD/OUT/VSS), real-world accuracy specs (±0.5° INL), functional safety compliance (ASIL B SEooC), and automotive-grade qualification (AEC-Q100 Grade 0).
Technical Context
The MLX90421GVS-ADC-003-RX integrates a Triaxis® Hall front end, analog-to-digital signal conditioner, and DSP-based signal processing engine to compute absolute angular position from three orthogonal magnetic flux components (Bx, By, Bz). Its on-chip programmability enables post-assembly calibration of transfer characteristics and magnetic axis selection.
It supports two output modes-ratiometric analog (0.5–99% VDD) and PWM (100–2000 Hz)-with configurable diagnostics including broken-wire detection and fail-safe state activation within 5–33 ms. The DMP-4 package implements dual-mold construction with built-in decoupling capacitance and pin-to-pin compatibility with prior Triaxis® generations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | -40°C to +160°C ambient; supports +180°C for ≤250 h (DMP-4 only) |
| Supply Voltage | 4.5–5.5 V; absolute max +37 V for <60 s |
| Supply Current | 7.5–10.0 mA (single-die DMP-4 configuration) |
| Output Type | Ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz, ±1% initial tolerance) |
| Angle Accuracy | ±0.5° integral non-linearity (INL) after 17-point linearization |
| Safety Certification | ISO26262 ASIL B Safety Element out of Context (SEooC); AEC-Q100 Grade 0 qualified |
| Magnetic Range | ±1 T (Bx, By, Bz); enables robust operation under strong stray fields |
Pinout & Package
DMP-4 (VS) is a PCB-less dual-mold package with 4 terminals, optimized for high-temperature automotive mounting and offering pin-to-pin compatibility with legacy Triaxis® sensors. It includes integrated decoupling capacitance and supports STD2 2.54 mm lead trim-and-form (per option code ADC-003).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog/digital circuitry; must be low-impedance connection |
| 2 | VDD | Primary supply input (4.5–5.5 V); powers internal regulator generating 3.3 V VDEC |
| 3 | OUT | Configurable output: ratiometric analog voltage or open-drain/push-pull PWM signal |
| 4 | VSS | Second ground terminal; improves EMC performance and thermal dissipation in DMP-4 |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous measurement of Bx, By, Bz enables true 3D magnetic field analysis for absolute angle computation without mechanical constraints |
| 17-Point Linearization | End-user programmable transfer curve corrects magnet non-uniformity and mechanical misalignment, achieving ±0.5° INL in final assembly |
| ASIL B SEooC Compliance | Integrated safety mechanisms-including watchdog timers, memory ECC, and diagnostic cycles-support integration into ASIL B systems without additional hardware |
| Dual-Mold DMP-4 Package | PCB-less construction with built-in capacitors reduces BOM count and improves thermal resistance (RθJA = 120 K/W) for under-hood placement |
| Broken-Wire Detection | Passive diagnostics identify open-circuit VDD or VSS faults by monitoring output voltage levels (e.g., BVDDPU = 92.5–99.5% VDD) |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
|
Use Scenario: Real-time detection of accelerator or brake pedal angular displacement in ICE and EV powertrains. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing analog/PWM feedback to ECU for torque control and emission management. Use Value: ±0.5° INL and ASIL B compliance ensure precise pedal mapping and functional safety compliance in SAE J3016 Level 2 ADAS systems. |
Use Scenario: Monitoring angular position of electronic throttle valves in gasoline and diesel engines. IC Role / Device Role / Timing Role: Contactless angular transducer delivering ratiometric output synchronized to engine control loop timing (≤470 μs refresh). Use Value: DMP-4's -40°C to +160°C rating and built-in decoupling enable direct mounting on throttle bodies without external capacitors or heatsinks. |
| Steering Wheel Position Sensing | Ride Height Control |
|
Use Scenario: Measuring steering column rotation for EPS assist torque calculation and lane-keeping systems. IC Role / Device Role / Timing Role: High-accuracy absolute angle sensor feeding CAN/FlexRay gateway with calibrated PWM data at 2000 Hz. Use Value: 17-point linearization compensates for gear backlash and magnet eccentricity, reducing EPS torque ripple by >40% vs. uncalibrated sensors. |
Use Scenario: Detecting suspension travel in adaptive air or coilover systems for vehicle leveling and damping control. IC Role / Device Role / Timing Role: Robust linear-to-rotary converter using off-axis magnet geometry to translate vertical motion into angular displacement. Use Value: Triaxis® 3D sensing rejects lateral vibration and shock-induced errors, maintaining ±1.0° accuracy over 10M+ cycles in off-road conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90422GVS-ADC-003-RX | Dual-die redundant version in same DMP-4 package; includes inter-die isolation and cross-check diagnostics | Required for ASIL C/D systems; adds ~2.5 mA supply current and requires dual-output signal conditioning | Select when system-level fault tolerance mandates redundancy beyond ASIL B SEooC scope |
| AMS30450-B05 | Single-axis Hall-based rotary sensor; no Bx/By/Bz fusion; ±1.5° INL; no programmable linearization | Limited to low-cost, non-safety-critical applications (e.g., HVAC damper control); lacks AEC-Q100 Grade 0 rating | Choose only for cost-sensitive industrial designs where ±1.5° accuracy and absence of ASIL support are acceptable |
Compared with MLX90421GVS-ADC-003-RX, the MLX90422 alternative provides hardware redundancy for higher ASIL targets but increases complexity and power use, while the AMS30450 offers lower cost and simpler interface at the expense of accuracy, safety certification, and 3D magnetic field adaptability.
Availability
MLX90421GVS-ADC-003-RX is available at Aetrix Electronics and suitable for automotive throttle control, pedal position feedback, steering angle measurement, and ride height regulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90421GVS-ADC-003-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 and industrial markets, with core expertise in magnetic sensing, infrared thermometry, and LED drive technology.
The MLX90421GVS-ADC-003-RX belongs to Melexis' Triaxis® position sensor product line, engineered specifically for high-reliability, contactless angular and linear position measurement in harsh automotive environments under ISO26262 and AEC-Q100 requirements.
FAQ
What is the maximum operating temperature for MLX90421GVS-ADC-003-RX?
The MLX90421GVS-ADC-003-RX is rated for continuous operation from -40°C to +160°C. Under controlled conditions, it supports short-duration exposure up to +180°C for ≤250 hours-specifically validated for the DMP-4 (VS) package per section 4.1 of the datasheet. This extension requires adherence to reduced supply voltage limits (≤5.5 V) and thermal derating guidelines.
Does MLX90421GVS-ADC-003-RX require external decoupling capacitors?
No. The MLX90421GVS-ADC-003-RX in DMP-4 (VS) package integrates internal decoupling capacitance as specified in section 15.3 of the datasheet. This eliminates the need for external VDEC capacitors, simplifying PCB layout and improving reliability in space-constrained automotive modules such as throttle bodies and pedal assemblies.
How is the 17-point linearization programmed on MLX90421GVS-ADC-003-RX?
The 17-point linearization on MLX90421GVS-ADC-003-RX is programmed via Melexis' PTC (Programmable Trim Configuration) interface using standard I²C or UART commands after device assembly. Calibration data is stored in NVRAM and persists across power cycles. The process requires Melexis' official programming tools (e.g., PTC GUI v4.2+) and a known magnetic reference setup per section 13.2 of the datasheet.
Is MLX90421GVS-ADC-003-RX pin-compatible with earlier Triaxis® sensors?
Yes. The DMP-4 (VS) package of MLX90421GVS-ADC-003-RX maintains pin-to-pin compatibility with prior-generation Triaxis® position sensors (e.g., MLX90363, MLX90364) as confirmed in section 3.3 and 18.3 of the datasheet. This allows drop-in replacement in existing designs without PCB revision, provided the application firmware supports the enhanced feature set.
What safety documentation is provided for MLX90421GVS-ADC-003-RX?
Melexis supplies a full ISO26262-compliant safety manual (document ID: MLX90421-SM-004) for MLX90421GVS-ADC-003-RX, covering FMEDA results, diagnostic coverage metrics (DC > 90% for safe faults), safety mechanism descriptions, and guidance for integrating the device as a Safety Element out of Context (SEooC) in ASIL B systems. This document is available under NDA from Melexis support.
MLX90421GVS-ADC-003-RX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 4-SSIP Module
- 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:
- Analog Voltage, PWM
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Through Hole
- Termination Style:
- PC Pin
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 4-DMP
MLX90421GVS-ADC-003-RX FAQ
1.How can I place an order for MLX90421GVS-ADC-003-RX through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-003-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 MLX90421GVS-ADC-003-RX reliable?
The price and inventory of MLX90421GVS-ADC-003-RX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90421GVS-ADC-003-RX is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-003-RX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-003-RX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-003-RX?
MLX90421GVS-ADC-003-RX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-003-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 MLX90421GVS-ADC-003-RX?
For technical support, including MLX90421GVS-ADC-003-RX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-003-RX requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-003-RX is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-003-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 MLX90421GVS-ADC-003-RX meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-003-RX?
All MLX90421GVS-ADC-003-RX units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-003-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 MLX90421GVS-ADC-003-RX part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-003-RX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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