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Melexis Technologies NV MLX90421GVE-ADC-000-TU
- Part No.:
- MLX90421GVE-ADC-000-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 3-SIP Module
- Datasheet:
-
MLX90421GVE-ADC-000-TU.pdf
- Description:
- SENSOR MAG POS RATIO/PWM 3SMP
- Quantity:
- Payment:
- Shipping:
Inventory:3,173
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Product details
Overview
MLX90421GVE-ADC-000-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 processing, 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 MLX90421GVE-ADC-000-TU datasheet, pinout, applications, or equivalent options, key selection criteria include its SMP-3 package footprint, 3-pin terminal configuration, programmable 17-point linearization, dual-die redundancy capability, and high-temperature operation up to +180 °C in select packages.
Technical Context
The MLX90421GVE-ADC-000-TU uses Triaxis® Hall technology to measure all three orthogonal magnetic flux components (Bx, By, Bz) on a single die, enabling robust absolute angle calculation without external magnets or complex field shaping. Its on-chip DSP performs real-time coordinate transformation and multi-point linearization.
It supports two output modes: ratiometric analog voltage (0.5–99% VDD) and programmable PWM (100–2000 Hz), both configurable post-assembly. The device implements diagnostics including broken-wire detection, watchdog timers, and memory ECC, meeting ASIL B requirements without requiring external safety controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40 °C to +160 °C; extended to +180 °C for ≤250 h in SMP-3/SMP-4/DMP-4 packages |
| Supply Voltage | 4.5–5.5 V; absolute max +37 V for <60 s at ≤35 °C |
| Output Type | Ratiometric analog (0.5–99% VDD) or PWM (100–2000 Hz, ±1% initial tolerance) |
| Angular Accuracy | ±0.5° typical over full range with 17-point programmable linearization |
| Supply Current | 7.5–10.0 mA (single-die SMP-3); no doubling required as this is single-die variant |
| Magnetic Range | ±1 T (−10kG to +10kG) maximum flux density exposure |
| Safety Certification | ISO 26262 ASIL B Safety Element out of Context; AEC-Q100 Grade 0 qualified |
Pinout & Package
SMP-3 (VE) is a PCB-less single-mold package with 3 terminals: VDD, OUT, and VSS. It integrates decoupling capacitance internally and requires no external bypass capacitors. The compact 2.1 × 1.8 × 0.6 mm footprint enables direct soldering onto flex or rigid PCBs in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Power supply input | Accepts 4.5–5.5 V; internal regulator generates 3.3 V analog rail; reverse polarity protected to −14 V |
| 2 (OUT) | Programmable output | Configurable as open-drain NMOS, push-pull, or analog ratiometric; supports diagnostic pull-up/pull-down |
| 3 (VSS) | Ground reference | Common return for supply and output; used in broken-wire diagnostics (BVSSPD/BVSSPU thresholds) |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall Sensing | Measures Bx, By, Bz simultaneously to compute absolute angle/position without mechanical stops or multi-chip alignment |
| 17-Point Programmable Linearization | Enables post-assembly calibration to correct for magnet nonlinearity and mechanical tolerances-no factory retest needed |
| Integrated Diagnostics | Includes broken-wire detection on VDD/VSS, intelligent watchdog, and memory ECC-reduces need for external safety monitoring |
| High-Temp Operation | Validated operation at +180 °C ambient for ≤250 h in SMP-3 package-supports under-hood applications near turbochargers or exhaust manifolds |
| PCB-Less SMP-3 Form Factor | Eliminates PCB assembly step; reduces BOM count and thermal interface layers-ideal for direct-mount sensor subassemblies |
Applications
| Throttle Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Mounted on accelerator or brake pedal shaft to detect angular displacement in real time. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing continuous analog/PWM output synchronized to ECU sampling clocks. Use Value: Enables precise torque mapping and failsafe pedal release detection with ±0.5° accuracy and ASIL B compliance. | Use Scenario: Integrated into electronic throttle control (ETC) or electronic brake boost (EBB) modules. IC Role / Device Role / Timing Role: Primary position transducer delivering ratiometric voltage proportional to throttle plate angle. Use Value: Supports fast transient response (<763 μs worst-case step) and high-temperature stability up to +180 °C in engine bay environments. |
| Steering Wheel Position Sensing | Float-Level Sensing |
Use Scenario: Embedded in steering column assemblies to monitor absolute rotation for EPS and ADAS yaw estimation. IC Role / Device Role / Timing Role: Non-contact absolute angle sensor with redundant diagnostics for torque overlay and lane-keeping assist. Use Value: Delivers fail-operational readiness via built-in broken-wire detection and ASIL B safety mechanisms without external hardware. | Use Scenario: Mounted on fuel or coolant tank float arms to convert linear motion into calibrated analog output. IC Role / Device Role / Timing Role: Absolute linear position sensor using off-axis magnet geometry and programmable transfer characteristic. Use Value: Achieves ±0.5° equivalent linearity over full stroke with 17-point correction-eliminates need for external ADC or lookup tables. |
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 |
|---|---|---|---|
| MLX90422GVE-ADC-000-TU | Dual-die SMP-4 package (4-pin); includes internal redundancy and isolation resistance >4 MΩ between dies | Required for ASIL C/D systems needing fault-tolerant dual-channel output; higher pin count and layout area | Select when functional safety demands hardware redundancy beyond ASIL B-SMP-4 adds second independent die and isolation |
| MLX90411GSE-AAA-000-TU | Legacy Triaxis® sensor in SOIC-8; fixed 12-bit analog output; no programmable linearization or PWM mode | Limited to legacy designs with existing SOIC-8 footprints; lacks post-assembly calibration and high-temp extension | Choose only for cost-sensitive, non-safety-critical industrial applications where programmability and +180 °C operation are unnecessary |
Compared with MLX90421GVE-ADC-000-TU, the MLX90422GVE-ADC-000-TU provides hardware-level fault containment for ASIL C/D, while the MLX90411GSE-AAA-000-TU offers lower integration but simpler configuration-neither matches the SMP-3's combination of ultra-compact size, programmable accuracy, and extended temperature capability.
Availability
MLX90421GVE-ADC-000-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 production lifecycles.
Supply support for MLX90421GVE-ADC-000-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 magnetic sensing, infrared thermometry, and automotive driver ICs, with design centers in Europe and Asia.
The MLX90421GVE-ADC-000-TU belongs to Melexis' Triaxis® position sensor product line, engineered specifically for high-reliability, non-contact absolute position measurement in harsh automotive environments.
FAQ
What output configurations does the MLX90421GVE-ADC-000-TU support?
The MLX90421GVE-ADC-000-TU supports both ratiometric analog voltage (0.5–99% VDD) and programmable PWM (100–2000 Hz) outputs. Output mode, transfer characteristic, and filtering are fully configurable via on-chip NVRAM after assembly. The SMP-3 package uses pins 1 (VDD), 2 (OUT), and 3 (VSS) with no dedicated test or decoupling pins-decoupling capacitance is integrated internally.
Is the MLX90421GVE-ADC-000-TU qualified for automotive use?
Yes, the MLX90421GVE-ADC-000-TU is AEC-Q100 Grade 0 qualified (−40 °C to +160 °C) and certified as an ISO 26262 ASIL B Safety Element out of Context. It includes built-in diagnostics such as broken-wire detection, watchdog timers, and memory ECC-enabling compliance in safety-critical throttle, pedal, and steering applications without external safety monitors.
What is the maximum operating temperature for MLX90421GVE-ADC-000-TU in SMP-3 package?
The MLX90421GVE-ADC-000-TU in SMP-3 (VE) package is rated for continuous operation from −40 °C to +160 °C. Per Melexis documentation, it supports extended high-temperature operation up to +180 °C for ≤250 hours-validating use in proximity to turbochargers, exhaust manifolds, or transmission housings where ambient temperatures exceed standard Grade 0 limits.
How many points can be programmed for linearization in MLX90421GVE-ADC-000-TU?
The MLX90421GVE-ADC-000-TU supports up to 17 programmable points for output transfer characteristic linearization. This allows precise correction of magnet nonlinearity, mechanical hysteresis, and air-gap variation directly in the end application-eliminating the need for external calibration or lookup tables in the host ECU.
Does MLX90421GVE-ADC-000-TU require external decoupling capacitors?
No, the MLX90421GVE-ADC-000-TU in SMP-3 package integrates decoupling capacitance internally. The datasheet specifies "built-in capacitors" for SMP-3 and confirms no external VDEC pin or capacitor is needed-simplifying layout, reducing component count, and improving reliability in vibration-prone automotive modules.
MLX90421GVE-ADC-000-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 3-SIP Module
- 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:
- SMP-3
MLX90421GVE-ADC-000-TU FAQ
1.How can I place an order for MLX90421GVE-ADC-000-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90421GVE-ADC-000-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 MLX90421GVE-ADC-000-TU reliable?
The price and inventory of MLX90421GVE-ADC-000-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90421GVE-ADC-000-TU is usually 5 days.
3.What payment methods are accepted for MLX90421GVE-ADC-000-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVE-ADC-000-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90421GVE-ADC-000-TU?
MLX90421GVE-ADC-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90421GVE-ADC-000-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 MLX90421GVE-ADC-000-TU?
For technical support, including MLX90421GVE-ADC-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVE-ADC-000-TU requirements.
6.How does Aetrix verify that MLX90421GVE-ADC-000-TU is sourced from the original manufacturer or authorized distributors?
All MLX90421GVE-ADC-000-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 MLX90421GVE-ADC-000-TU meets industry standards.
7.What is the process for return or replacement of MLX90421GVE-ADC-000-TU?
All MLX90421GVE-ADC-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVE-ADC-000-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 MLX90421GVE-ADC-000-TU part is unused and in its original packaging.
Return procedure for MLX90421GVE-ADC-000-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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