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Melexis Technologies NV MLX90421GVS-ADC-000-RE
- Part No.:
- MLX90421GVS-ADC-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SIP Module
- Datasheet:
-
MLX90421GVS-ADC-000-RE.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMP
- Quantity:
- Payment:
- Shipping:
Inventory:4,764
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Product details
Overview
MLX90421GVS-ADC-000-RE from Melexis is a monolithic Triaxis® Hall-based magnetic position sensor IC for absolute rotary and linear position sensing. It delivers ratiometric analog or PWM output, supports -40°C to +160°C operation, achieves ±0.5° angular accuracy (typ.), and features on-chip DSP-based linearization with up to 17-point programmability. It is used in automotive throttle, pedal, and steering wheel position sensing.
For engineers reviewing the MLX90421GVS-ADC-000-RE datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DMP-4), confirmed SOIC-8/TSSOP-16/DMP-4/SMP-3/SMP-4 pinouts, functional safety compliance (ISO 26262 ASIL B SEooC), AEC-Q100 Grade 0 qualification, and real-world timing specs including 448 µs angle measurement period and 228 µs analog latency.
Technical Context
The MLX90421GVS-ADC-000-RE integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic field components, enabling robust 3D field vector processing. Its internal DSP performs real-time multi-point linearization and configurable transfer characteristic generation, supporting both angular (0–360°) and linear position outputs.
It operates in continuous acquisition mode with a default 448 µs internal angle measurement period and offers dual-output flexibility: ratiometric analog (0.5–99% VDD) or programmable PWM (100–2000 Hz). 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 (AEC-Q100 Grade 0); extended to +180°C for ≤250 h in DMP-4/SMP-3/SMP-4 packages |
| Supply Voltage | 4.5 V to 5.5 V (standard); supports up to 28 V transient input for robust automotive environments |
| Output Type | Ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz, ±1% initial tolerance at 35°C) |
| Angle Accuracy | ±0.5° typical over full range (0–360°), enabled by 17-point programmable linearization |
| Measurement Period | 448 µs (default), enabling >2 kHz effective sampling rate for dynamic position tracking |
| Latency | 228 µs (analog, Filter 0), critical for closed-loop control in throttle and pedal systems |
| Functional Safety | ISO 26262 ASIL B Safety Element out of Context (SEooC), with diagnostic cycle time of 10.9 ms (analog) |
Pinout & Package
DMP-4 (Dual Mold Package) - PCB-less, 4-pin surface-mount package with integrated decoupling capacitors; RoHS-compliant; pin-to-pin compatible with prior Triaxis® generations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog/digital circuitry; must be connected to low-impedance PCB ground plane |
| 2 | VDD | Main supply input (4.5–5.5 V); internal regulator generates 3.3 V for analog core |
| 3 | OUT | Configurable output: ratiometric analog voltage or open-drain/Push-Pull PWM signal |
| 4 | VSS | Dedicated ground return path; improves EMC performance and reduces ground bounce in noisy environments |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous Bx, By, Bz detection enables true 3D magnetic field vector resolution for non-contact absolute position |
| On-Chip DSP Linearization | 17-point programmable transfer curve eliminates external calibration hardware and compensates for magnet misalignment |
| Dual Redundant Output Modes | Field-selectable analog or PWM output allows system-level redundancy and EMI-resilient signal transmission |
| Integrated Diagnostics | Built-in broken-wire detection (VDD/VSS open-circuit) and fail-safe state activation ensure functional safety compliance without external monitoring ICs |
| High-Temp Operation | Validated operation up to +180°C ambient for ≤250 h in DMP-4 package, supporting under-hood applications beyond standard Grade 0 limits |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Real-time detection of accelerator pedal rotation angle in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing analog voltage output synchronized to engine control unit sampling. Use Value: 228 µs analog latency and ±0.5° accuracy enable precise torque mapping and meet ISO 26262 ASIL B requirements for drivetrain control. | Use Scenario: Monitoring brake or clutch pedal travel in electric/hybrid vehicles with regenerative braking coordination. IC Role / Device Role / Timing Role: High-reliability linear position transducer delivering redundant PWM output for cross-checking with primary analog channel. Use Value: Dual-die capable packaging (SMP-4) and built-in diagnostics support ASIL B decomposition, reducing system-level validation effort. |
| Steering Wheel Position Sensing | Ride Height Control |
Use Scenario: Measuring absolute rotational angle of steering column for EPS assist torque calculation and ADAS lane-keeping feedback. IC Role / Device Role / Timing Role: Triaxis®-based absolute encoder replacing contact potentiometers; immune to dust, moisture, and mechanical wear. Use Value: 448 µs measurement period and programmable linearization allow custom transfer curves matching steering gear kinematics. | Use Scenario: Detecting suspension compression/expansion in adaptive air ride systems for vehicle leveling and damping control. IC Role / Device Role / Timing Role: Non-contact linear position sensor mounted on shock absorber or air spring, operating continuously at +125°C ambient. Use Value: DMP-4 package with integrated capacitors simplifies PCB layout and meets AEC-Q100 Grade 0 thermal profile without external filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90411GVS-ADC-000-RE | Single-axis Hall sensor; no Triaxis® Bx/By/Bz capability; lower accuracy (±1.0° typ.); no ASIL B certification | Limited to simple rotary or linear motion where vector field independence is not required | Select when cost sensitivity outweighs need for 3D field immunity and functional safety compliance |
| AMS AS5055A-BQFT | 14-bit contactless rotary encoder; SPI interface only; no analog/PWM output; ±0.15° accuracy; no AEC-Q100 qualification | Suitable for non-automotive industrial encoders requiring high resolution but no safety certification | Choose for high-resolution SPI-based systems where automotive qualification and dual-output flexibility are unnecessary |
Compared with MLX90421GVS-ADC-000-RE, MLX90411GVS-ADC-000-RE lacks Triaxis® vector processing and ASIL B support, while AMS AS5055A-BQFT offers higher resolution but no analog/PWM output or automotive qualification-making MLX90421GVS-ADC-000-RE uniquely suited for safety-critical, dual-output automotive position sensing.
Availability
MLX90421GVS-ADC-000-RE is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position sensing, steering angle measurement, and ride height control requiring stable component supply across extended temperature ranges and functional safety compliance.
Supply support for MLX90421GVS-ADC-000-RE 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 global manufacturing partnerships.
The MLX90421 product line delivers Triaxis®-based absolute position sensing for automotive powertrain, chassis, and ADAS systems, emphasizing robustness in harsh environments, functional safety integration, and programmable field adaptability.
FAQ
What is the maximum operating temperature for MLX90421GVS-ADC-000-RE?
The MLX90421GVS-ADC-000-RE is rated for continuous operation from -40°C to +160°C per AEC-Q100 Grade 0. In the DMP-4 package, it supports extended exposure up to +180°C for ≤250 hours, validated for under-hood applications where short-term thermal spikes occur. This rating is confirmed in Section 4.1 of the official datasheet revision 004.
Does MLX90421GVS-ADC-000-RE support both analog and PWM output simultaneously?
No, MLX90421GVS-ADC-000-RE supports either ratiometric analog output or PWM output-not both concurrently. The output mode is configured during programming via the end-user programmable items (Section 13.1), and the selected mode determines the electrical behavior of the OUT pin. The DMP-4 package uses a single OUT pin (Pin 3) for either signal type.
What package type does MLX90421GVS-ADC-000-RE use, and is it PCB-less?
MLX90421GVS-ADC-000-RE uses the DMP-4 (Dual Mold Package), a PCB-less 4-pin surface-mount solution with integrated decoupling capacitors. As specified in Table 1 and Section 18.3 of the datasheet, DMP-4 provides pin-to-pin compatibility with legacy Triaxis® sensors and eliminates the need for external bypass capacitors on the host PCB.
Is MLX90421GVS-ADC-000-RE certified for functional safety applications?
Yes, MLX90421GVS-ADC-000-RE is certified as an ISO 26262 ASIL B Safety Element out of Context (SEooC), with documented safety mechanisms including diagnostic cycle time (10.9 ms for analog), fail-safe state activation (5–33 ms), and broken-wire detection. These capabilities are detailed in Section 14 and Annex A of the datasheet revision 004.
Can MLX90421GVS-ADC-000-RE be programmed after soldering to the PCB?
Yes, MLX90421GVS-ADC-000-RE supports post-assembly programming via its I²C-compatible interface (described in Section 11), enabling end-of-line trimming of linearization points, output transfer characteristics, and diagnostic thresholds. This allows system-level calibration to compensate for mechanical tolerances and magnet placement variations unique to each application.
MLX90421GVS-ADC-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 4-SIP 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-000-RE FAQ
1.How can I place an order for MLX90421GVS-ADC-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-000-RE 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-RE reliable?
The price and inventory of MLX90421GVS-ADC-000-RE 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-RE is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-000-RE?
MLX90421GVS-ADC-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-000-RE 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-RE?
For technical support, including MLX90421GVS-ADC-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-000-RE requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-000-RE 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-RE meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-000-RE?
All MLX90421GVS-ADC-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-000-RE, 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-RE part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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