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Melexis Technologies NV MLX90421GVS-ADC-008-TU
- Part No.:
- MLX90421GVS-ADC-008-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SIP Module, Formed Leads
- Datasheet:
-
MLX90421GVS-ADC-008-TU.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMPS
- Quantity:
- Payment:
- Shipping:
Inventory:3,911
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Product details
Overview
MLX90421GVS-ADC-008-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 conditioning, and programmable ratiometric analog or PWM output. Operating from −40 °C to +160 °C with AEC-Q100 Grade 0 qualification and ISO 26262 ASIL B safety element out of context, it delivers ±0.5° angular accuracy in automotive throttle and pedal position systems.
For engineers reviewing the MLX90421GVS-ADC-008-TU datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DMP-4), confirmed pin functions (VSS/VDD/OUT), real-world timing specs (448 μs angle measurement period), and validated alternatives for non-contacting position sensing in high-temp automotive environments.
Technical Context
The MLX90421GVS-ADC-008-TU uses Triaxis® Hall technology to measure all three orthogonal magnetic field components (Bx, By, Bz) enabling robust absolute position calculation without mechanical contact. Its on-chip DSP performs multi-point linearization (up to 17 points) and supports both analog and PWM output modes with programmable transfer characteristics.
It operates across −40 °C to +160 °C with supply voltage range 4.5–5.5 V, consumes 7.5–10.0 mA, and features built-in diagnostics including broken-wire detection and fail-safe state activation within 5–33 ms. The DMP-4 package variant includes integrated decoupling capacitance and supports high-temperature extension up to +180 °C for limited duration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40 °C to +160 °C; extended operation up to +180 °C for ≤250 h in DMP-4 package |
| Supply Voltage | 4.5–5.5 V; absolute max +37 V for <60 s at TAMB ≤35 °C |
| Supply Current | 7.5–10.0 mA; enables low-power automotive subsystem integration |
| Angle Accuracy | ±0.5° typical over full range; achieved via on-chip 17-point linearization |
| Output Options | Ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz); selectable post-assembly |
| Measurement Period | 448 μs default; determines real-time responsiveness in closed-loop control |
| Safety Certification | ISO 26262 ASIL B Safety Element out of Context; supports functional safety architecture |
Pinout & Package
DMP-4 (Dual Mold Package) is a PCB-less, single-die surface-mount package with 4 terminals and integrated decoupling capacitance. It offers pin-to-pin compatibility with prior Triaxis® generations and optimized thermal performance for under-hood applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference; must be connected to system ground for EMC and accuracy |
| 2 | VDD | Primary power supply input (4.5–5.5 V); powers internal regulator and sensor core |
| 3 | OUT | Programmable output terminal; delivers ratiometric analog voltage or PWM signal |
| 4 | VSS | Second ground terminal; improves current return path and reduces noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3-Axis Sensing | Measures Bx, By, Bz simultaneously to compute absolute position from magnet motion in any orientation |
| 17-Point Linearization | Enables post-assembly calibration to correct for mechanical tolerances and magnetic field non-uniformity |
| Dual Output Modes | Configurable analog (ratiometric) or PWM output eliminates need for external ADC or timer peripherals |
| AEC-Q100 Grade 0 | Qualified for automotive applications requiring operation up to +160 °C ambient temperature |
| Integrated Diagnostics | Includes broken-wire detection, supply monitoring, and fail-safe state activation per ISO 26262 requirements |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Real-time detection of accelerator or brake pedal angular displacement in ICE and EV powertrain control units. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing 448 μs update rate for closed-loop torque management. Use Value: Enables precise air/fuel ratio and regenerative braking control with ±0.5° accuracy and ASIL B compliance. |
Use Scenario: Non-contact measurement of pedal rotation in driver assistance systems (e.g., adaptive cruise, auto-braking). IC Role / Device Role / Timing Role: High-reliability position transducer delivering ratiometric analog output synchronized to ECU sampling clocks. Use Value: Eliminates potentiometer wear-out while maintaining functional safety integrity across −40 °C to +160 °C. |
| Steering Wheel Position | Ride Height Control |
Use Scenario: Detection of steering angle for EPS feedback and lane-keeping assist functions. IC Role / Device Role / Timing Role: Triaxis® sensor calculating absolute angle from rotating magnet mounted on steering column shaft. Use Value: Provides deterministic latency (<240 μs) and immunity to stray fields-critical for real-time steering torque compensation. |
Use Scenario: Monitoring suspension travel in active damping and adaptive ride height systems. IC Role / Device Role / Timing Role: Linear position sensor converting magnet displacement along shock absorber axis into calibrated analog output. Use Value: Delivers stable measurement under vibration and thermal cycling, supported by on-chip filtering and diagnostics. |
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-008-TU | Dual-die redundant version in same DMP-4 package; doubles diagnostic coverage and fault tolerance | Required for ASIL C/D systems where single-point failure mitigation is mandated | Select when functional safety target exceeds ASIL B or redundancy is architecturally required |
| AMS30450-B05 | Single-axis Hall-based sensor; no Triaxis® 3D field processing or on-chip linearization | Limited to simple angular or linear tasks without multi-point correction or high-accuracy calibration | Choose only for cost-sensitive, non-safety-critical applications with relaxed accuracy (±2°) |
Compared with MLX90421GVS-ADC-008-TU, MLX90422GVS-ADC-008-TU adds hardware-level redundancy for higher ASIL targets, while AMS30450-B05 lacks Triaxis® vector computation and requires external linearization-making it unsuitable for high-accuracy automotive position feedback loops.
Availability
MLX90421GVS-ADC-008-TU is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position sensing, and steering wheel angle measurement requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90421GVS-ADC-008-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 intelligent sensors and wireless RF solutions for automotive, industrial, and consumer markets.
The MLX90421GVS-ADC-008-TU belongs to Melexis' Triaxis® position sensor product line, designed specifically for high-accuracy, non-contacting absolute position measurement in harsh automotive environments.
FAQ
What is the operating temperature range of the MLX90421GVS-ADC-008-TU?
The MLX90421GVS-ADC-008-TU operates from −40 °C to +160 °C. In DMP-4 package, it supports high-temperature extension up to +180 °C for ≤250 hours, validated per Melexis specification Table 10. This makes MLX90421GVS-ADC-008-TU suitable for under-hood automotive applications such as throttle bodies and transmission housings where ambient temperatures exceed standard industrial limits.
Does the MLX90421GVS-ADC-008-TU require external programming hardware?
No, the MLX90421GVS-ADC-008-TU supports end-user programming via its output pin using standard UART-like communication (described in Section 11 of the datasheet). Calibration, linearization points, output mode, and diagnostics can be configured post-assembly without dedicated programmers-enabling in-system tuning of MLX90421GVS-ADC-008-TU for final mechanical alignment and magnetic field optimization.
What output types does the MLX90421GVS-ADC-008-TU support?
The MLX90421GVS-ADC-008-TU supports two configurable output modes: ratiometric analog voltage (0.5–99% of VDD) and pulse-width modulated (PWM) signal (100–2000 Hz). Both are programmable after assembly and do not require external components-allowing MLX90421GVS-ADC-008-TU to interface directly with microcontrollers or analog-to-digital converters without additional signal conditioning.
Is the MLX90421GVS-ADC-008-TU pin-compatible with earlier Triaxis® sensors?
Yes, the MLX90421GVS-ADC-008-TU in DMP-4 package maintains pin-to-pin compatibility with previous-generation Triaxis® position sensors (e.g., MLX90363 series), as confirmed in Section 3.3 of the datasheet. This allows drop-in replacement in existing designs while upgrading to enhanced accuracy, wider temperature range, and ISO 26262 ASIL B compliance of MLX90421GVS-ADC-008-TU.
How is functional safety implemented in the MLX90421GVS-ADC-008-TU?
The MLX90421GVS-ADC-008-TU is certified as an ISO 26262 ASIL B Safety Element out of Context (SEooC), with built-in diagnostics including supply monitoring, broken-wire detection, watchdog timers, and fail-safe state activation within 5–33 ms. These mechanisms are implemented in hardware and firmware, enabling MLX90421GVS-ADC-008-TU to meet safety goals without requiring external safety controllers in ASIL B systems.
MLX90421GVS-ADC-008-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 4-SIP Module, Formed Leads
- 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-008-TU FAQ
1.How can I place an order for MLX90421GVS-ADC-008-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-008-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-008-TU reliable?
The price and inventory of MLX90421GVS-ADC-008-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-008-TU is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-008-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-008-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-008-TU?
MLX90421GVS-ADC-008-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-008-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-008-TU?
For technical support, including MLX90421GVS-ADC-008-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-008-TU requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-008-TU is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-008-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-008-TU meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-008-TU?
All MLX90421GVS-ADC-008-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-008-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-008-TU part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-008-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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