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Melexis Technologies NV MLX90421GVS-ADC-003-RE
- Part No.:
- MLX90421GVS-ADC-003-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SSIP Module
- Datasheet:
-
MLX90421GVS-ADC-003-RE.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMP
- Quantity:
- Payment:
- Shipping:
Inventory:2,946
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Product details
Overview
MLX90421GVS-ADC-003-RE 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 operation from −40 °C to +160 °C in DMP-4 package. It uses Bx/By/Bz field components to compute angle (0–360°) with ASIL B functional safety compliance and AEC-Q100 Grade 0 qualification.
For engineers reviewing the MLX90421GVS-ADC-003-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, exact DMP-4 pin mapping, real-world automotive use cases, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The MLX90421GVS-ADC-003-RE integrates a Triaxis® Hall front end, analog-to-digital signal conditioner, DSP-based advanced signal processing, and programmable output stage. Its three-axis magnetic sensing enables absolute angle calculation from magnet motion without mechanical contact.
It supports continuous acquisition mode with 448 μs internal angle measurement period and configurable filtering (Filter 0–2), delivering worst-case step response from 763 μs (analog) to 2223 μs (PWM). Output modes include ratiometric analog (0.5–99% VDD saturation) or PWM (100–2000 Hz, ±1% initial tolerance).
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 packages |
| 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 (single die); enables low-power automotive subsystem integration |
| Output Type | Ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz); selectable per application |
| Accuracy | ±0.5° typical angular error after 17-point programmable linearization |
| Safety Certification | ISO 26262 ASIL B Safety Element out of Context; supports safety-critical pedal/throttle systems |
| Magnetic Range | ±1 T (Bx, By, Bz); enables robust sensing under strong stray fields |
Pinout & Package
DMP-4 (Dual Mold Package) is a PCB-less, 4-pin surface-mount package with integrated decoupling capacitors, optimized for space-constrained automotive sensors. Pin layout matches legacy Triaxis® products for drop-in replacement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog/digital circuitry; must be connected to system ground |
| 2 | VDD | Primary supply input (4.5–5.5 V); powers all internal blocks including DSP and output driver |
| 3 | OUT | Configurable output: ratiometric analog voltage or PWM signal; open-drain NMOS or push-pull |
| 4 | VSS | Second ground terminal; improves EMC performance and thermal dissipation in high-noise environments |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Technology | Simultaneous Bx/By/Bz sensing enables true 3D magnetic field analysis for absolute angle computation |
| 17-Point Programmable Linearization | Compensates for magnet nonlinearity and mechanical misalignment in final assembly, improving system accuracy without recalibration |
| ASIL B Functional Safety | Includes built-in diagnostics (broken-wire detection, watchdog timers, CRC memory checks) meeting ISO 26262 requirements |
| Dual Mold Package (DMP-4) | PCB-less construction reduces bill-of-materials and assembly steps; integrated capacitors eliminate external bypass components |
| AEC-Q100 Grade 0 Qualification | Validated for under-hood automotive applications up to +160 °C ambient, with extended +180 °C capability |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator or brake pedal rotation in electric/hybrid powertrains with high EMC immunity. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time angle feedback to ECU via analog/PWM interface. Use Value: Enables precise torque control and failsafe pedal release detection using ASIL B diagnostics and dual-ground DMP-4 layout. |
Use Scenario: Detecting throttle valve angle in gasoline direct injection engines exposed to under-hood temperatures up to +160 °C. IC Role / Device Role / Timing Role: High-accuracy magnetic position transducer with programmable transfer characteristic for OEM-specific calibration curves. Use Value: Delivers ±0.5° angular accuracy after 17-point linearization, reducing need for post-assembly trimming and enabling tighter emissions compliance. |
| Steering Wheel Position Sensing | Ride Height Position Sensing |
Use Scenario: Measuring steering wheel angle for EPS assist and ADAS lane-keeping functions in compact column modules. IC Role / Device Role / Timing Role: Compact DMP-4 packaged sensor interfacing directly to MCU ADC or PWM capture peripheral. Use Value: PCB-less design saves >30% board area vs SOIC-8; 448 μs measurement period supports real-time torque overlay algorithms. |
Use Scenario: Monitoring suspension travel in adaptive air ride systems where space and thermal stability are critical. IC Role / Device Role / Timing Role: Non-contacting absolute linear position sensor using off-axis magnet configuration. Use Value: Triaxis® 3D sensing tolerates magnet misalignment during vehicle assembly; ASIL B diagnostics ensure fail-safe height reporting. |
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 |
|---|---|---|---|
| MLX90421GDC-ADC-000-RE | SOIC-8 package (8-pin) with separate test/N.C. pins; no integrated capacitors; requires external decoupling | Used where PCB mounting and manual calibration are preferred over PCB-less integration | Select when board-level layout control and standard SMT reflow compatibility are required over DMP-4's space savings |
| MLX90421GVS-ADC-000-RE | Same DMP-4 package but factory-programmed with default 0–360° linear transfer curve (vs. ADC-003's custom trim/form STD2 2.54 lead configuration) | Deployed in high-volume applications requiring zero-field programming and standardized lead geometry | Choose for cost-sensitive programs where standard lead form suffices and post-assembly linearization is not needed |
Compared with MLX90421GVS-ADC-000-RE, the MLX90421GVS-ADC-003-RE provides pre-trimmed leads (STD2 2.54) for automated insertion into legacy harnesses, while MLX90421GDC-ADC-000-RE offers greater layout flexibility and test access at the expense of board area and external component count.
Availability
MLX90421GVS-ADC-003-RE is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and steering angle monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90421GVS-ADC-003-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 over 30 years of sensor innovation and AEC-Q100 leadership.
The MLX90421 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive subsystems, emphasizing ASIL B compliance, high-temperature resilience, and programmable signal conditioning for magnetically complex environments.
FAQ
What is the package type and lead configuration of MLX90421GVS-ADC-003-RE?
The MLX90421GVS-ADC-003-RE uses the DMP-4 (Dual Mold Package), a PCB-less 4-pin surface-mount solution with STD2 2.54 mm lead form. This configuration enables direct insertion into legacy harnesses and eliminates external decoupling capacitors, reducing system component count and board space versus SOIC-8 alternatives.
Does MLX90421GVS-ADC-003-RE support both analog and PWM outputs?
Yes, MLX90421GVS-ADC-003-RE supports either ratiometric analog output (0.5–99% VDD) or PWM output (100–2000 Hz) - selected during programming. The analog mode provides 448 μs measurement period and 228–240 μs latency; PWM mode adds frame-synchronized timing with configurable frequency and startup sequence.
How does the 17-point programmable linearization function in MLX90421GVS-ADC-003-RE improve system accuracy?
The MLX90421GVS-ADC-003-RE allows end-user programming of up to 17 points in its transfer characteristic to compensate for magnet nonlinearity, mechanical tolerances, and air-gap variations. This post-assembly calibration reduces angular error to ±0.5° typical, eliminating costly mechanical adjustments and enabling one-size-fits-all magnet designs across vehicle platforms.
Is MLX90421GVS-ADC-003-RE qualified for automotive under-hood applications?
Yes, MLX90421GVS-ADC-003-RE is AEC-Q100 Grade 0 qualified (−40 °C to +160 °C) and ISO 26262 ASIL B certified as a Safety Element out of Context. Its DMP-4 package supports extended operation up to +180 °C for limited durations, making it suitable for throttle bodies, transmission selectors, and other high-temperature under-hood locations.
What safety diagnostics are implemented in MLX90421GVS-ADC-003-RE?
The MLX90421GVS-ADC-003-RE includes broken-wire detection (BVSSPD/BVDDPU), cyclic redundancy check (CRC) on NVRAM, watchdog timers (AWD/IWD), and memory ECC. Diagnostic cycle times are 10.9 ms (analog) and 19.7 ms (digital), with fail-safe state duration configurable down to 5 ms - all supporting ASIL B compliance without external safety microcontroller overhead.
MLX90421GVS-ADC-003-RE 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-RE FAQ
1.How can I place an order for MLX90421GVS-ADC-003-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-003-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-003-RE reliable?
The price and inventory of MLX90421GVS-ADC-003-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-003-RE is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-003-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-003-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-003-RE?
MLX90421GVS-ADC-003-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-003-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-003-RE?
For technical support, including MLX90421GVS-ADC-003-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-003-RE requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-003-RE is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-003-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-003-RE meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-003-RE?
All MLX90421GVS-ADC-003-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-003-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-003-RE part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-003-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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