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Melexis Technologies NV MLX90421GVS-ADC-008-SP
- Part No.:
- MLX90421GVS-ADC-008-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 4-SSIP Module
- Datasheet:
-
MLX90421GVS-ADC-008-SP.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 4DMP
- Quantity:
- Payment:
- Shipping:
Inventory:1,061
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Product details
Overview
MLX90421GVS-ADC-008-SP 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 pedal and throttle position sensing.
For engineers reviewing the MLX90421GVS-ADC-008-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its DMP-4 package compatibility, 4-pin terminal configuration, programmable 17-point linearization, high-temperature operation up to +180°C (SMP/DMP variants), and dual-die redundancy support in related variants.
Technical Context
The MLX90421GVS-ADC-008-SP implements Triaxis® Hall technology to measure all three orthogonal magnetic flux components (Bx, By, Bz) on-chip, enabling robust absolute angle calculation without external magnets or complex field shaping. Its internal DSP performs real-time vector computation and multi-point linearization.
It supports continuous acquisition mode with 448 μs internal angle measurement period and configurable filtering (Filter 0–2), delivering latency as low as 228 μs in analog mode. Output is ratiometric analog or PWM with factory-trimmable frequency (100–2000 Hz) and ±1% initial tolerance at 35°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40°C to +160°C; extended to +180°C for ≤250 h (DMP-4/SMP packages) |
| Supply Voltage | 4.5 V to 5.5 V; absolute max +37 V for <60 s |
| Output Type | Ratiometric analog or PWM; programmable transfer characteristic with up to 17 points |
| Angular Accuracy | ±0.5° typical over full range; includes INL/DNL compensation via on-chip DSP |
| Supply Current | 7.5–10.0 mA (single die); enables low-power automotive subsystem integration |
| Startup Time | 4.1–5.0 ms (analog); safe startup time 31 ms with diagnostic holdoff |
| PWM Frequency | 100–2000 Hz; ±1% initial tolerance at 35°C, ±3.5% thermal drift |
Pinout & Package
DMP-4 (VS) is a PCB-less dual-mold package with 4 terminals, optimized for compact, high-reliability automotive mounting. It provides pin-to-pin compatibility with prior Triaxis® generations and built-in decoupling capacitance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Ground reference for analog and digital domains; must be connected to system ground for EMC compliance |
| 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 | Second ground terminal; improves current return path integrity and reduces EMI susceptibility |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3-Axis Sensing | Measures Bx, By, Bz simultaneously to compute absolute angle/position independent of magnet orientation |
| On-Chip DSP Linearization | 17-point programmable transfer curve eliminates need for external calibration or lookup tables |
| ASIL B Safety Element | ISO 26262-compliant safety mechanisms (watchdog, CRC, diagnostics) implemented without external hardware |
| AEC-Q100 Grade 0 | Qualified for under-hood automotive use with guaranteed operation up to +160°C ambient |
| DMP-4 PCB-less Integration | Reduces system footprint and assembly cost; eliminates solder joint reliability concerns in vibration-prone environments |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Real-time detection of accelerator or brake pedal angular displacement in electric and ICE powertrains. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing analog/PWM feedback to ECU with <5 ms startup and ±0.5° accuracy. Use Value: Enables precise torque control and failsafe pedal mapping without mechanical wear or contact degradation. | Use Scenario: Monitoring throttle valve rotation in engine management systems requiring high reliability at elevated under-hood temperatures. IC Role / Device Role / Timing Role: Ratiometric analog output device with 448 μs measurement period and ASIL B diagnostics for closed-loop air-fuel ratio control. Use Value: Maintains functional safety compliance while supporting wide temperature operation up to +160°C ambient. |
| Steering Wheel Position Sensing | Ride Height Position Sensing |
Use Scenario: Detection of steering wheel angle for EPS assist and ADAS yaw estimation in column-mounted configurations. IC Role / Device Role / Timing Role: Triaxis® sensor computing absolute angle from axial/radial field components; supports redundant dual-die variants. Use Value: Eliminates need for external concentrators or multi-sensor assemblies-reducing BOM and improving packaging density. | Use Scenario: Measuring suspension travel in adaptive damping systems where compact size and vibration resistance are critical. IC Role / Device Role / Timing Role: Linear position sensor using calibrated magnetic field gradient; leverages DMP-4's PCB-less construction for direct mounting. Use Value: Withstands shock and thermal cycling better than potentiometers or LVDTs while maintaining ±0.5° equivalent linearity. |
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-SP | Same DMP-4 package and pinout; standard trim/form (straight leads) vs. STD4 2.54 mm bent leads | No difference in core sensing function or accuracy; differs only in lead geometry for specific PCB layout constraints | Select ADC-000 for conventional through-hole mounting; ADC-008 for space-constrained surface-mount with pre-formed leads |
| MLX90421GVE-ADC-000-SP | SMP-3 package (3-pin, single-die); smaller footprint but no dual-ground terminal; lacks DMP-4's built-in capacitors | Lower cost and size for non-redundant applications; requires external decoupling and tighter layout control | Choose VE variant when board area is critical and external capacitor placement is feasible |
Compared with MLX90421GVS-ADC-008-SP, the ADC-000 variant offers identical electrical performance with straight leads for legacy compatibility, while the VE variant trades dual-ground and integrated capacitance for minimal footprint-making ADC-008 optimal for new designs prioritizing robustness and simplified layout.
Availability
MLX90421GVS-ADC-008-SP is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and ride height monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90421GVS-ADC-008-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, industrial, and consumer applications, with expertise in magnetic sensing and embedded signal processing.
The MLX90421 product line delivers Triaxis® absolute position sensing for safety-critical automotive subsystems, combining high-temperature resilience, ASIL B compliance, and programmable output flexibility in compact PCB-less packages.
FAQ
What is the operating temperature range of the MLX90421GVS-ADC-008-SP?
The MLX90421GVS-ADC-008-SP operates from −40°C to +160°C continuously. It supports high-temperature extension up to +180°C for ≤250 hours in DMP-4, SMP-3, and SMP-4 packages-validated per Melexis' High-Temperature Extension specifications in Revision 004 datasheet Section 4.1.
Does the MLX90421GVS-ADC-008-SP require external decoupling capacitors?
No. The MLX90421GVS-ADC-008-SP in DMP-4 (VS) package integrates decoupling capacitance internally, eliminating the need for external capacitors. This simplifies PCB layout and improves reliability in high-vibration environments such as under-hood automotive applications.
What output protocols does the MLX90421GVS-ADC-008-SP support?
The MLX90421GVS-ADC-008-SP supports both ratiometric analog voltage and pulse-width modulated (PWM) outputs. The output type and transfer characteristic-including up to 17-point linearization-are fully programmable post-assembly using Melexis' PTM interface and customer-specific magnetic configuration.
Is the MLX90421GVS-ADC-008-SP qualified for automotive safety standards?
Yes. The MLX90421GVS-ADC-008-SP is AEC-Q100 Grade 0 qualified and certified as an ISO 26262 ASIL B Safety Element out of Context (SEooC). It includes built-in diagnostics such as watchdog timers, CRC checks, and passive broken-wire detection without requiring external safety hardware.
How many pins does the MLX90421GVS-ADC-008-SP have, and what are their functions?
The MLX90421GVS-ADC-008-SP uses the DMP-4 package with four terminals: Pin 1 (VSS), Pin 2 (VDD), Pin 3 (OUT), and Pin 4 (VSS). Dual ground connections improve noise immunity and current return path integrity, while the single output supports analog or PWM modes with programmable drive strength.
MLX90421GVS-ADC-008-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 4-SSIP Module
- Series:
- Triaxis®
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 4-DMP
MLX90421GVS-ADC-008-SP FAQ
1.How can I place an order for MLX90421GVS-ADC-008-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-008-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-008-SP reliable?
The price and inventory of MLX90421GVS-ADC-008-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-008-SP is usually 5 days.
3.What payment methods are accepted for MLX90421GVS-ADC-008-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-008-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVS-ADC-008-SP?
MLX90421GVS-ADC-008-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVS-ADC-008-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-008-SP?
For technical support, including MLX90421GVS-ADC-008-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-008-SP requirements.
6.How does Aetrix verify that MLX90421GVS-ADC-008-SP is sourced from the original manufacturer or authorized distributors?
All MLX90421GVS-ADC-008-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-008-SP meets industry standards.
7.What is the process for return or replacement of MLX90421GVS-ADC-008-SP?
All MLX90421GVS-ADC-008-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-008-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-008-SP part is unused and in its original packaging.
Return procedure for MLX90421GVS-ADC-008-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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