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Melexis Technologies NV MLX90421GVS-ADC-000-TU
- Part No.:
- MLX90421GVS-ADC-000-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90421GVS-ADC-000-TU.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMPS
- Quantity:
- Payment:
- Shipping:
Inventory:3,262
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Product details
Overview
MLX90421GVS-ADC-000-TU from Melexis is a Triaxis® monolithic magnetic position sensor IC for absolute rotary and linear position sensing. It integrates a 3-axis Hall front end, DSP-based signal processing, ratiometric analog or PWM output, and supports operation from −40 °C to +160 °C in DMP-4 package. Used in throttle, pedal, and steering wheel position sensing where non-contact robustness and ASIL B compliance are required.
For engineers reviewing the MLX90421GVS-ADC-000-TU datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DMP-4), confirmed 4-pin terminal roles, real-world accuracy specs (±0.5° INL), functional safety classification (ASIL B SEooC), and validated automotive-grade alternatives with documented differences in redundancy and output protocol support.
Technical Context
The MLX90421GVS-ADC-000-TU implements Triaxis® Hall technology to measure Bx, By, and Bz components simultaneously, enabling absolute angle calculation up to 360° via on-chip DSP. Its programmable linear transfer characteristic supports up to 17-point calibration post-assembly, improving system-level accuracy without mechanical adjustment.
It operates in continuous acquisition mode with 448 μs internal angle measurement period and provides dual-output flexibility: ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz, ±1% initial tolerance). Built-in diagnostics include broken-wire detection and fail-safe state activation within 5–33 ms after digital fault detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40 °C to +160 °C - qualified for under-hood automotive use; extended to +180 °C for ≤250 h in DMP-4/SMP packages |
| Supply Voltage | 4.5–5.5 V - stable operation across battery voltage fluctuations; reverse supply rating −14 V for 1 h |
| Output Type | Ratiometric analog or PWM - selectable per application; analog output saturates at 0.5–99% VDD; PWM frequency 100–2000 Hz |
| Accuracy | ±0.5° integral non-linearity - achieved via 17-point programmable linearization and on-chip DSP compensation |
| Functional Safety | ISO 26262 ASIL B Safety Element out of Context - includes diagnostic cycle time (10.9 ms analog / 19.7 ms digital) and fail-safe state |
| Package | DMP-4 (PCB-less dual mold) - 4-pin, surface-mount, RoHS-compliant, pin-to-pin compatible with prior Triaxis® generations |
| Supply Current | 7.5–10.0 mA - single-die power draw; enables low-power ECU subsystem integration |
Pinout & Package
DMP-4 is a PCB-less dual-mold package with 4 solderable terminals, optimized for compact, high-reliability mounting directly onto flexible or rigid substrates. No external decoupling capacitors required - internal regulation and filtering are integrated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog and digital blocks; must be connected to system ground for EMC and accuracy |
| 2 | VDD | Main supply input (4.5–5.5 V); powers internal regulator generating 3.3 V analog rail (VDEC) |
| 3 | OUT | Configurable output: ratiometric analog voltage or open-drain/push-pull PWM signal; supports external pull-up to 18 V |
| 4 | VSS | Dedicated ground return path - improves noise immunity and current-loop integrity in noisy automotive environments |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3-Axis Sensing | Simultaneous Bx/By/Bz measurement enables true 3D magnetic field analysis - eliminates need for external concentrators or multi-sensor assemblies |
| 17-Point Programmable Linearization | Calibration performed post-assembly to compensate for magnet misalignment and mechanical tolerances - reduces system-level INL by >50% vs fixed-characteristic sensors |
| ASIL B SEooC Certification | Includes built-in diagnostics (broken-wire, supply monitoring), configurable diagnostic cycle time, and fail-safe output behavior - satisfies ISO 26262 requirements without external safety controller |
| Dual-Output Flexibility | Single device supports either analog (ratiometric) or PWM output via programming - simplifies BOM management across platform variants |
| AEC-Q100 Grade 0 Qualification | Validated for 160 °C ambient operation with 1000-cycle thermal shock testing - ensures reliability in transmission, engine, and brake control modules |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator pedal angle in gasoline/diesel powertrains to determine torque demand and enable closed-loop air-fuel ratio control. IC Role / Device Role / Timing Role: Absolute angular position sensor providing real-time 0–100% throttle opening feedback with <1 ms latency and ±0.5° repeatability. Use Value: Enables precise engine load estimation and meets OBD-II diagnostic readiness requirements through integrated broken-wire and supply monitoring. | Use Scenario: Detecting driver brake or accelerator pedal displacement in electric and hybrid vehicles for regenerative braking coordination and drive-by-wire response. IC Role / Device Role / Timing Role: High-accuracy linear-to-angle converter mounted on pedal arm shaft; outputs analog voltage proportional to pedal travel. Use Value: Supports functional safety goals (ASIL B) with fail-safe state activation within 33 ms and diagnostic coverage >90% per ISO 26262 Annex G. |
| Steering Wheel Position Sensing | Ride Height Control |
Use Scenario: Measuring absolute steering angle for EPS assist torque calculation, lane-keeping assist, and vehicle dynamics control. IC Role / Device Role / Timing Role: Rotary position sensor mounted on steering column; delivers 360° absolute angle with 12-bit effective resolution via PWM output. Use Value: Eliminates potentiometer wear and contact bounce; maintains accuracy over 10M+ cycles and −40 °C to +160 °C ambient range. | Use Scenario: Monitoring suspension compression/extension in adaptive air suspension systems to maintain ride height and optimize damping force. IC Role / Device Role / Timing Role: Linear position transducer measuring shock absorber stroke; configured for 0–100 mm range with programmable transfer curve. Use Value: Reduces calibration labor via post-assembly 17-point linearization - compensates for mounting offset and magnet geometry variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90422GVS-ADC-000-TU | Dual-die DMP-4 variant with full hardware redundancy; includes isolation resistance >4 MΩ between dies | Required for ASIL C/D systems needing cross-die comparison and fault-tolerant voting logic | Select when system-level safety architecture mandates redundant sensing paths and independent die monitoring |
| MLX90393ELW-ABA-000-TU | 3D Hall sensor with I²C/SPI digital interface; no analog/PWM output; higher resolution (20-bit) but no ASIL B certification | Suitable for non-safety-critical industrial encoders or lab equipment requiring high-resolution field vector data | Choose for applications needing raw Bx/By/Bz values and host MCU-based processing - not for direct ECU analog/PWM interfacing |
Compared with MLX90421GVS-ADC-000-TU, the MLX90422 offers hardware redundancy essential for ASIL C/D, while MLX90393 provides higher-resolution digital field data but lacks safety certification and direct analog/PWM output - making MLX90421GVS-ADC-000-TU optimal for cost-sensitive ASIL B automotive position sensing with minimal external components.
Availability
MLX90421GVS-ADC-000-TU is available at Aetrix Electronics and suitable for throttle position sensing, pedal position sensing, and steering angle measurement requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 0 qualification.
Supply support for MLX90421GVS-ADC-000-TU 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 design centers in Europe and Asia and manufacturing partners certified to IATF 16949.
The MLX90421 belongs to Melexis' Triaxis® position sensor product line, engineered specifically for non-contact absolute position measurement in harsh automotive environments where reliability, safety compliance, and temperature resilience are critical.
FAQ
What is the operating temperature range of the MLX90421GVS-ADC-000-TU?
The MLX90421GVS-ADC-000-TU is rated for −40 °C to +160 °C ambient operation and qualified to AEC-Q100 Grade 0. In DMP-4 package, it supports extended operation up to +180 °C for ≤250 hours under defined bias conditions - validated for under-hood applications including transmission and engine control modules.
Does the MLX90421GVS-ADC-000-TU support both analog and PWM outputs?
Yes, the MLX90421GVS-ADC-000-TU supports either ratiometric analog voltage (0.5–99% VDD) or PWM (100–2000 Hz) output, selected during programming. The output mode is configurable post-assembly using Melexis' PTM software and standard SENT/PWM interface - no hardware change is needed to switch between modes.
Is the MLX90421GVS-ADC-000-TU certified for functional safety applications?
Yes, the MLX90421GVS-ADC-000-TU is certified as an ISO 26262 ASIL B Safety Element out of Context (SEooC), with documented diagnostic coverage, fail-safe state behavior, and diagnostic cycle times (10.9 ms analog / 19.7 ms digital). It includes built-in broken-wire detection, supply monitoring, and configurable watchdog timers - enabling integration into ASIL B systems without additional safety hardware.
What package type does the MLX90421GVS-ADC-000-TU use, and what are its key mechanical features?
The MLX90421GVS-ADC-000-TU uses the DMP-4 (Dual Mold Package) - a PCB-less, 4-terminal surface-mount package with straight leads. It integrates decoupling capacitance internally, requires no external capacitors, and provides pin-to-pin compatibility with prior Triaxis® generations. Its compact footprint (3.0 × 3.0 × 0.9 mm) supports high-density placement on flex or rigid boards.
Can the MLX90421GVS-ADC-000-TU be programmed after soldering to the PCB?
Yes, the MLX90421GVS-ADC-000-TU supports end-user programming after assembly via its SENT-compatible interface. Users can configure output mode, linearization points (up to 17), measurement range, filtering, and diagnostics using Melexis' PTM software and standard programming tools - enabling final-system calibration and eliminating pre-production magnet alignment iterations.
MLX90421GVS-ADC-000-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 4-SIP Module
- Series:
- -
- Packaging:
- Tube
- 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:
- -
- Qualification:
- -
- Supplier Device Package:
- 4-DMP
MLX90421GVS-ADC-000-TU FAQ
1.How can I place an order for MLX90421GVS-ADC-000-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-000-TU 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-000-TU reliable?
The price and inventory of MLX90421GVS-ADC-000-TU 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-000-TU is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-000-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-000-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-000-TU?
MLX90421GVS-ADC-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-000-TU 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-000-TU?
For technical support, including MLX90421GVS-ADC-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-000-TU requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-000-TU is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-000-TU 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-000-TU meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-000-TU?
All MLX90421GVS-ADC-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-000-TU, 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-000-TU part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-000-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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