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Melexis Technologies NV MLX90421GVS-ADC-008-RX
- Part No.:
- MLX90421GVS-ADC-008-RX
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SSIP Module
- Datasheet:
-
MLX90421GVS-ADC-008-RX.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMP
- Quantity:
- Payment:
- Shipping:
Inventory:2,088
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Product details
Overview
MLX90421GVS-ADC-008-RX 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 is AEC-Q100 Grade 0 qualified for automotive throttle and pedal position sensing.
For engineers reviewing the MLX90421GVS-ADC-008-RX datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DMP-4), confirmed pin functions (VSS/VDD/OUT/VSS), real-world accuracy specs (±0.5° INL), functional safety status (ISO 26262 ASIL B SEooC), and validated alternatives for non-contacting angular sensing in high-temp automotive systems.
Technical Context
The MLX90421GVS-ADC-008-RX integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic field components, a DSP for advanced signal processing, and a programmable output stage. Its on-chip signal conditioning enables robust absolute position calculation from magnet rotation without external computation.
It supports continuous acquisition mode with 448 µs internal angle measurement period and configurable filtering (Filter 0–2), delivering analog output latency as low as 228 µs or PWM startup time of 4.1 ms. The DMP-4 package version uses dual-mold construction with built-in decoupling capacitance and face-down tape-and-reel (RX) delivery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40°C to +160°C - supports under-hood automotive placement without external cooling |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive power rails |
| Supply Current | 7.5–10.0 mA - enables low-power operation in battery-sensitive modules |
| Output Type | Ratiometric analog or PWM - selectable per application; analog output saturates at 0.5–1.2% and 97–99% VDD |
| Angle Accuracy | ±0.5° integral non-linearity - ensures high-fidelity throttle or steering wheel position feedback |
| Measurement Period | 448 µs - enables >2 kHz position update rate for real-time control loops |
| PWM Frequency | 100–2000 Hz - configurable for ECU-compatible timing and noise immunity |
| Safety Certification | ISO 26262 ASIL B SEooC - qualifies as safety element out of context for system-level FMEDA |
Pinout & Package
DMP-4 (Dual Mold Package) is a PCB-less, surface-mount package with 4 terminals, optimized for compact, high-reliability automotive sensors. It features integrated decoupling capacitance and straight leads (STD4 2.54 mm trim & form per section 18.3.3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog and digital circuitry; must be connected to low-impedance chassis ground |
| 2 | VDD | Primary supply input (4.5–5.5 V); powers internal regulator generating 3.3 V VDEC rail |
| 3 | OUT | Configurable ratiometric analog or PWM output; open-drain NMOS or push-pull capable |
| 4 | VSS | Dedicated ground return path - improves EMC performance and reduces ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous Bx/By/Bz detection enables true 3D magnetic field analysis for absolute angular position without mechanical stops |
| 17-Point Linearization | User-programmable transfer characteristic compensates for magnet non-uniformity and air-gap variation post-assembly |
| AEC-Q100 Grade 0 | Qualified for 160°C ambient operation - validated for engine bay, transmission, and brake module environments |
| Face-Down Tape & Reel (RX) | Ensures consistent orientation during automated pick-and-place; eliminates manual reorientation in SMT lines |
| On-Chip Diagnostics | Built-in broken-wire detection (BVSSPD/BVDDPU) and fail-safe state (5–33 ms TFSS) support ISO 26262 diagnostic coverage |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator pedal angle in gasoline/diesel powertrains to determine fuel injection timing and volume. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time, contactless angular feedback to ECU with <448 µs measurement period. Use Value: ±0.5° INL and ASIL B compliance ensure precise torque demand translation and fault-tolerant engine control. | Use Scenario: Detecting brake or clutch pedal travel in electronic braking systems (EBS) and automated manual transmissions (AMT). IC Role / Device Role / Timing Role: High-temp stable angular transducer interfacing directly to vehicle bus via analog/PWM, operating continuously at 160°C. Use Value: DMP-4 package's PCB-less design and built-in capacitance reduce BOM count and improve vibration resilience in cab-mounted assemblies. |
| Steering Wheel Position Sensing | Ride Height Control |
Use Scenario: Measuring steering angle for electric power steering (EPS) assist algorithms and lane-keeping systems. IC Role / Device Role / Timing Role: Primary position sensor feeding closed-loop motor control with <240 µs analog latency and programmable filtering. Use Value: Triaxis® technology rejects stray fields from nearby motors; 17-point linearization corrects for magnet tilt and eccentricity. | Use Scenario: Monitoring suspension travel in adaptive damping and active ride height systems for SUVs and commercial vehicles. IC Role / Device Role / Timing Role: Absolute linear position sensor using magnet translation over sensor; outputs calibrated analog voltage proportional to stroke. Use Value: Ratiometric output eliminates supply drift errors; AEC-Q100 qualification ensures reliability across extreme thermal cycling in chassis environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90421GVS-ADC-000-RX | Same DMP-4 package and RX tape format, but uses default (non-trimmed) linearization curve | Lower calibration effort required; suitable for cost-sensitive designs where magnet geometry is highly repeatable | Select when production volume justifies factory trimming or when magnet tolerances allow unadjusted transfer function |
| MLX90421GVE-ADC-008-RX | SMP-3 package (3-pin, single-die) instead of DMP-4; identical ADC-008 trim & form and RX packing | Smaller footprint and lower mass; lacks dual-ground pins, reducing EMC margin in noisy powertrain zones | Choose for space-constrained locations like pedal arms or compact actuators where thermal derating is acceptable |
Compared with MLX90421GVS-ADC-000-RX, the -008 variant offers factory-trimmed linearization for higher initial accuracy; compared with MLX90421GVE-ADC-008-RX, the DMP-4 package provides superior thermal dissipation and dual-ground paths critical for high-vibration engine bay mounting.
Availability
MLX90421GVS-ADC-008-RX is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position monitoring, and steering angle feedback requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MLX90421GVS-ADC-008-RX 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 core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90421 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive subsystems including powertrain, chassis, and ADAS, emphasizing high-temperature operation, functional safety, and programmable signal conditioning.
FAQ
What is the package type and lead configuration for MLX90421GVS-ADC-008-RX?
The MLX90421GVS-ADC-008-RX uses the DMP-4 (Dual Mold Package) with four terminals: VSS, VDD, OUT, and VSS. It features STD4 2.54 mm trim & form leads and is supplied face-down in tape-and-reel (RX) format per Melexis specification section 18.3.3. This PCB-less package integrates decoupling capacitance and supports high-reliability automotive mounting.
Does MLX90421GVS-ADC-008-RX support both analog and PWM output modes?
Yes, MLX90421GVS-ADC-008-RX supports both ratiometric analog voltage output and pulse-width modulated (PWM) output. The output mode is configured via end-user programming; analog output saturates between 0.5–1.2% and 97–99% of VDD, while PWM frequency is adjustable from 100 Hz to 2000 Hz with ±1% initial tolerance at 35°C.
What functional safety certification does MLX90421GVS-ADC-008-RX hold?
MLX90421GVS-ADC-008-RX is certified as an ISO 26262 Safety Element out of Context (SEooC) at ASIL B. It includes on-chip diagnostics such as broken-wire detection (BVSSPD/BVDDPU) and a configurable fail-safe state duration (5–33 ms), enabling integration into ASIL B or ASIL C systems with appropriate system-level decomposition.
What is the maximum operating temperature and thermal extension capability of MLX90421GVS-ADC-008-RX?
MLX90421GVS-ADC-008-RX operates from −40°C to +160°C per AEC-Q100 Grade 0 qualification. For DMP-4 package variants like this one, high-temperature extension allows exposure up to +180°C for ≤250 hours, with degraded but functional performance including supply voltage limited to 5.5 V and junction temperature capped at +190°C.
How is linearization implemented in MLX90421GVS-ADC-008-RX, and what is its precision?
MLX90421GVS-ADC-008-RX implements user-programmable linearization with up to 17 calibration points stored in NVRAM. The ADC-008 option indicates factory-trimmed linearization, achieving ±0.5° integral non-linearity (INL) over full scale. This correction compensates for magnet non-uniformity, air-gap variation, and mechanical misalignment after final assembly.
MLX90421GVS-ADC-008-RX 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-008-RX FAQ
1.How can I place an order for MLX90421GVS-ADC-008-RX through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-008-RX 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-RX reliable?
The price and inventory of MLX90421GVS-ADC-008-RX 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-RX is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-008-RX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-008-RX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-008-RX?
MLX90421GVS-ADC-008-RX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-008-RX 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-RX?
For technical support, including MLX90421GVS-ADC-008-RX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-008-RX requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-008-RX is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-008-RX 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-RX meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-008-RX?
All MLX90421GVS-ADC-008-RX units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-008-RX, 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-RX part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-008-RX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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