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Melexis Technologies NV MLX90421GVS-ADC-003-SP
- Part No.:
- MLX90421GVS-ADC-003-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SIP Module, Formed Leads
- Datasheet:
-
MLX90421GVS-ADC-003-SP.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMPS
- Quantity:
- Payment:
- Shipping:
Inventory:4,888
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Product details
Overview
MLX90421GVS-ADC-003-SP from Melexis is a monolithic Triaxis® Hall-based magnetic position sensor IC for absolute rotary position sensing. It delivers ratiometric analog or PWM output, supports programmable linearization up to 17 points, operates from −40 °C to +160 °C, and achieves ASIL B compliance per ISO 26262 as a safety element out of context - used in throttle and pedal position sensing.
For engineers reviewing the MLX90421GVS-ADC-003-SP datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DMP-4), confirmed pin functions, real-world accuracy specs, functional safety context, and validated automotive-grade alternatives.
Technical Context
The MLX90421GVS-ADC-003-SP integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic field components, a 12-bit ADC, a DSP for on-chip signal conditioning, and a programmable output stage. Its architecture enables absolute angular position calculation (0–360°) from magnet motion without mechanical contact.
It supports continuous acquisition mode with 448 μs internal angle measurement period and configurable filtering (Filter 0–2). Output modes include ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz), both programmable post-assembly for system-level calibration and linearity optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40 °C to +160 °C (AEC-Q100 Grade 0 qualified) |
| Supply Voltage | 4.5 V to 5.5 V (supports 28 V transient tolerance up to 60 s) |
| Output Type | Ratiometric analog or PWM (user-selectable, factory-configurable) |
| Accuracy | ±0.5° typical angular error over full range (after 17-point linearization) |
| Measurement Rate | 2.23 kHz update rate (448 μs angle measurement period) |
| Safety Certification | ISO 26262 ASIL B Safety Element out of Context (SEooC) |
| Package | DMP-4 (PCB-less dual-mold, 4-pin, 2.54 mm pitch, STD2 trim & form) |
Pinout & Package
DMP-4 package: compact, PCB-less dual-mold construction with straight leads (STD2 2.54 mm pitch), optimized for direct soldering onto flex or rigid substrates in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog and digital blocks; must be low-impedance connection to system GND |
| 2 | VDD | Primary supply input (4.5–5.5 V); includes internal regulation to 3.3 V for analog core |
| 3 | OUT | Configurable output: ratiometric analog voltage (0.5–99% VDD) or open-drain PWM signal |
| 4 | VSS | Second ground terminal; improves EMC performance and current return path integrity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous measurement of Bx, By, Bz enables robust absolute angle computation independent of magnet alignment tolerances |
| 17-Point Linearization | End-of-line programmability allows compensation for magnet nonlinearity and mechanical misalignment in final assembly |
| Dual-Ground DMP-4 Layout | Two VSS pins reduce ground loop impedance and improve noise immunity in high-EMI automotive environments |
| ASIL B SEooC Compliance | Includes built-in diagnostics (broken-wire detection, watchdog, CRC), enabling integration into ASIL B systems without additional hardware |
| AEC-Q100 Grade 0 | Validated for operation at junction temperatures up to +175 °C - suitable for under-hood and transmission applications |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of accelerator pedal rotation angle in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing analog output synchronized to engine control unit sampling at ≥2 kHz. Use Value: Enables closed-loop torque control with <±0.5° accuracy after linearization, meeting OEM requirements for emission and drivability compliance. |
Use Scenario: Detection of brake or clutch pedal angular displacement in electronic braking systems. IC Role / Device Role / Timing Role: Fail-operational position transducer delivering redundant-ready PWM output with diagnostic flags. Use Value: Supports ASIL B functional safety architecture via integrated broken-wire detection and safe startup timing (31 ms). |
| Ride Height Control | Steering Wheel Angle Sensing |
|
Use Scenario: Monitoring suspension arm rotation to adjust air spring pressure in adaptive damping systems. IC Role / Device Role / Timing Role: Non-contacting absolute position sensor operating continuously at 160 °C ambient in chassis-mounted enclosures. Use Value: Eliminates potentiometer wear and drift; DMP-4 package withstands vibration and thermal cycling without PCB stress. |
Use Scenario: Measuring steering column rotation for electric power steering (EPS) feedback and lane-keeping assist. IC Role / Device Role / Timing Role: High-bandwidth angular sensor with 228 μs latency and programmable filter settings for dynamic response tuning. Use Value: Enables precise torque overlay and stability control by delivering sub-degree resolution at 2.23 kHz update rate. |
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-SP | Same DMP-4 package and pinout; adds dual-die redundancy and inter-die isolation (4 MΩ) | Required for ASIL C/D systems needing fault-tolerant dual-channel output | Select when functional safety target exceeds ASIL B or redundancy is mandated by system architecture |
| AMS30450-B02-T | Single-die TSSOP-16 package; 14-bit resolution; no ASIL B certification; ±0.8° typical accuracy | Targeted at cost-sensitive industrial position sensing, not automotive safety-critical use | Consider only for non-automotive applications where AEC-Q100 and ISO 26262 are not required |
Compared with MLX90421GVS-ADC-003-SP, MLX90422GVS-ADC-003-SP provides hardware-level redundancy for higher ASIL targets, while AMS30450-B02-T offers higher resolution but lacks automotive qualification and safety certification - making MLX90421GVS-ADC-003-SP the optimal balance of ASIL B compliance, DMP-4 form factor, and production-proven reliability in automotive throttle and pedal systems.
Availability
MLX90421GVS-ADC-003-SP is available at Aetrix Electronics and suitable for throttle position sensing, pedal position sensing, and ride height control requiring stable component supply across automotive production lifecycles.
Supply support for MLX90421GVS-ADC-003-SP 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 expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90421 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive subsystems, designed specifically to meet AEC-Q100 Grade 0 and ISO 26262 ASIL B requirements in harsh under-hood environments.
FAQ
What is the package type and lead configuration of MLX90421GVS-ADC-003-SP?
The MLX90421GVS-ADC-003-SP uses the DMP-4 (Dual Mold Package) with four terminals: two VSS, one VDD, and one OUT. It features STD2 trim & form with 2.54 mm pitch straight leads, enabling direct soldering onto flex circuits or compact rigid boards without a carrier PCB. This configuration is confirmed in Melexis datasheet revision 004, section 18.3.2.
Does MLX90421GVS-ADC-003-SP support both analog and PWM output simultaneously?
No - the MLX90421GVS-ADC-003-SP supports either ratiometric analog output or PWM output, selected during programming. The output mode is configured via on-chip NVRAM and cannot be dynamically switched in operation. Both modes are supported in the DMP-4 package, and the selection is finalized during end-of-line calibration per application requirements.
What is the angular accuracy specification for MLX90421GVS-ADC-003-SP after linearization?
The MLX90421GVS-ADC-003-SP achieves ±0.5° typical total angular error over 0–360° after applying its 17-point programmable linearization function. This value is specified in the datasheet's Accuracy Specifications section (page 19) and reflects combined effects of INL, temperature drift, and magnetic hysteresis under AEC-Q100 Grade 0 conditions.
Is MLX90421GVS-ADC-003-SP qualified for high-temperature operation beyond 160 °C?
Yes - the MLX90421GVS-ADC-003-SP (DMP-4 package) is approved for intermittent exposure up to +180 °C for ≤250 hours, with degraded but functional performance per Table 10 in the datasheet. Supply voltage must remain within 4.5–5.5 V, and output pull-up is limited to VDD under these conditions.
How does the ASIL B compliance of MLX90421GVS-ADC-003-SP apply in system design?
The MLX90421GVS-ADC-003-SP is certified as a Safety Element out of Context (SEooC) per ISO 26262, meaning it provides documented safety mechanisms (CRC, watchdog, broken-wire detection) and FMEDA data, enabling integration into ASIL B systems without requiring additional hardware redundancy. System-level safety goals must still be allocated and verified per ISO 26262 Part 4.
MLX90421GVS-ADC-003-SP 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-003-SP FAQ
1.How can I place an order for MLX90421GVS-ADC-003-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-003-SP 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-SP reliable?
The price and inventory of MLX90421GVS-ADC-003-SP 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-SP is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-003-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-003-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-003-SP?
MLX90421GVS-ADC-003-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-003-SP 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-SP?
For technical support, including MLX90421GVS-ADC-003-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-003-SP requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-003-SP is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-003-SP 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-SP meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-003-SP?
All MLX90421GVS-ADC-003-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-003-SP, 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-SP part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-003-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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