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Melexis Technologies NV MLX90423GGO-ACA-430-SP
- Part No.:
- MLX90423GGO-ACA-430-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90423GGO-ACA-430-SP.pdf
- Description:
- TRIAXIS POSITION SENSOR, SENT OU
- Quantity:
- Payment:
- Shipping:
Inventory:3,674
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Product details
Overview
MLX90423GGO-ACA-430-SP from Melexis is a Triaxis® Hall-based monolithic magnetic position processor IC for absolute linear position sensing in automotive-grade environments. It delivers ratiometric analog, PWM, or SENT output with ASIL-B functional safety for analog mode, operates from -40°C to +160°C, supports stray field immunity up to 5 mT, and is pre-programmed for linear legacy magnetic configuration in TSSOP-16 dual-die redundant package.
For engineers reviewing the MLX90423GGO-ACA-430-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, real-world timing behavior, output protocol constraints, safety mechanism coverage, and validated alternative options for pedal, throttle, and ride height sensing systems.
Technical Context
The MLX90423GGO-ACA-430-SP implements a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic components, enabling absolute linear position decoding without rotational ambiguity. Its on-chip DSP performs stray-field-robust signal conditioning and supports user-programmable transfer characteristics using 12–16 calibration points.
This variant is factory-configured for linear legacy operation (Option Code ACA-430), uses TSSOP-16 full-redundant dual-die architecture with isolated ground/supply domains (Risol ≥ 4 MΩ), and delivers SENT (SAE J2716 APR2016) or PWM output with ASIL-C compliance-while analog output remains ASIL-B rated per ISO 26262 SEooC certification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | -40°C to +160°C - Enables under-hood and transmission-mounted deployment without derating. |
| Supply Voltage | 4.5–5.5 V (regulated) or 6–18 V (battery) - Supports direct battery connection in PWM/SENT modes. |
| Output Protocols | SENT (SAE J2716 APR2016), PWM, ratiometric analog - Three selectable interfaces with distinct diagnostic coverage. |
| Functional Safety | ASIL-C for SENT/PWM, ASIL-B for analog - Validated SEooC safety element with programmable DCT_dig (20 ms) and DCT_ana (10.64–12.4 ms). |
| Magnetic Robustness | Stray field immune up to 5 mT (4 kA/m) - Maintains accuracy in high-EMI powertrain environments per ISO 11452-8. |
| Angle Acquisition | 204–210 μs internal period - Enables sub-millisecond latency for closed-loop control feedback. |
| Package | TSSOP-16 - Dual-die full redundancy with isolated supply/ground domains for fault-tolerant automotive systems. |
Pinout & Package
TSSOP-16 package with full-redundant dual-die architecture, RoHS-compliant, thermal resistance θJA = 65°C/W (JEDEC Std 51-2), footprint 5.0 × 4.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDEC1 | Decoupling pin die1 | Local analog regulator bypass for Die 1; requires 100 nF ceramic capacitor to VSS1. |
| VSS1 | Ground die1 | Isolated ground reference for Die 1; not electrically connected to VSS2 per isolation spec (Risol ≥ 4 MΩ). |
| VDD1 | Supply die1 | Primary power input for Die 1; supports 4.5–18 V with overvoltage protection to 28 V. |
| Test11 | Factory test die1 | Internally grounded in application mode; connect to PCB ground for EMC compliance. |
| Test22 | Factory test die2 | Internally grounded in application mode; connect to PCB ground for EMC compliance. |
| OUT2 | Output die2 | Digital output (SENT/PWM) from Die 2; open-drain NMOS or push-pull configurable. |
| N.C. | Not connected | No internal connection; tie to ground per EMC recommendation. |
| VDEC2 | Decoupling pin die2 | Local analog regulator bypass for Die 2; requires 100 nF ceramic capacitor to VSS2. |
| VSS2 | Ground die2 | Isolated ground reference for Die 2; enables independent fault detection between dies. |
| VDD2 | Supply die2 | Primary power input for Die 2; identical electrical specs to VDD1. |
| Test12 | Factory test die2 | Internally grounded in application mode; connect to PCB ground for EMC compliance. |
| Test21 | Factory test die1 | Internally grounded in application mode; connect to PCB ground for EMC compliance. |
| OUT1 | Output die1 | Digital output (SENT/PWM) from Die 1; independently configurable for cross-checking. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous Bx/By/Bz measurement enables true 3D magnetic field decoding for absolute linear position without mechanical stops. |
| Programmable Transfer Curve | 12–16 point linearization table allows precise compensation of magnet nonlinearity and mechanical hysteresis in custom assemblies. |
| Dual-Die Redundancy | Independent VDD/VSS domains and isolated outputs (OUT1/OUT2) support lockstep comparison or fail-safe voting architectures. |
| SENT Secure Sensor Format | Embedded CRC, error codes, and user-defined payload enable authenticated, tamper-resistant position reporting for ADAS-critical functions. |
| Stray Field Immunity | Validated 5 mT immunity per ISO 11452-8 ensures stable operation near high-current cables, solenoids, or motors without shielding. |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator or brake pedal displacement in ECU-controlled drive-by-wire systems. IC Role / Device Role / Timing Role: Absolute linear position transducer delivering SENT frames at 1–2 kHz with <2.5 ms worst-case latency (Filter=2) for real-time torque mapping. Use Value: ASIL-C compliance and dual-die redundancy ensure fail-operational behavior during single-point faults in safety-critical actuation paths. | Use Scenario: Detecting throttle valve angle in gasoline/diesel engines with variable valve timing and turbocharging. IC Role / Device Role / Timing Role: High-temperature (160°C ambient) magnetic sensor providing PWM output synchronized to engine speed for closed-loop air-fuel ratio control. Use Value: Stray field immunity eliminates need for magnetic shielding near ignition coils and alternators, reducing BOM cost and assembly complexity. |
| Ride Height Control | Steering Wheel Position |
Use Scenario: Measuring suspension travel in adaptive damping and active roll control systems for premium vehicles. IC Role / Device Role / Timing Role: Linear legacy-mode position sensor interfacing via analog output with 302 μs latency and ±0.5% INL across full stroke. Use Value: AEC-Q100 Grade 0 qualification guarantees reliability over 15-year vehicle lifetime despite thermal cycling and vibration exposure. | Use Scenario: Determining absolute steering angle for electronic stability control (ESC) and lane-keeping assist (LKA) functions. IC Role / Device Role / Timing Role: 360°-capable position processor (reprogrammable from linear legacy) delivering SENT with 48-bit ID for secure ECU pairing. Use Value: On-chip 48-bit unique ID prevents counterfeit parts and enables firmware traceability across global production batches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90423GDC-ACA-230-RE | SOIC-8 single-die, pre-programmed for linear stray-field robust mode (not legacy), no redundancy. | Suitable for cost-sensitive non-safety-critical linear sensing where dual-die isolation is unnecessary. | Select when BOM cost reduction outweighs ASIL-C requirement and system-level redundancy is handled externally. |
| MLX90423GVE-ACA-430-RE | SMP-3 PCB-less single-mold package, same linear legacy config but no dual-die or isolation capability. | Optimized for ultra-compact space-constrained modules like integrated motor controllers or e-axle assemblies. | Choose for minimal footprint and weight savings where thermal dissipation is managed via substrate conduction rather than airflow. |
Compared with MLX90423GGO-ACA-430-SP, the SOIC-8 variant trades redundancy and isolation for lower cost and simpler layout, while the SMP-3 version sacrifices fault tolerance for extreme miniaturization-making the TSSOP-16 dual-die the only option meeting full ASIL-C requirements in a single package.
Availability
MLX90423GGO-ACA-430-SP is available at Aetrix Electronics and suitable for pedal position sensing, throttle control, and ride height monitoring requiring stable component supply across automotive Tier-1 production programs.
Supply support for MLX90423GGO-ACA-430-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 core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90423 product line delivers Triaxis® Hall-based absolute position sensing for safety-critical automotive subsystems including drive-by-wire, chassis control, and electrified powertrain applications.
FAQ
What output protocols does the MLX90423GGO-ACA-430-SP support?
The MLX90423GGO-ACA-430-SP supports SENT (SAE J2716 APR2016), PWM, and ratiometric analog outputs. It is factory-configured for linear legacy operation and defaults to SENT or PWM mode-both certified ASIL-C-while analog output maintains ASIL-B rating. Output selection is programmable via Melexis' PTC interface, and all modes include built-in diagnostics such as broken-wire detection and CRC validation.
How does the dual-die architecture of the MLX90423GGO-ACA-430-SP improve functional safety?
The MLX90423GGO-ACA-430-SP uses physically isolated dies in its TSSOP-16 package, with separate VDD1/VSS1 and VDD2/VSS2 domains and independent OUT1/OUT2 outputs. This enables cross-die comparison, lockstep execution, or voting logic to detect latent faults. Isolation resistance exceeds 4 MΩ, and each die runs identical firmware-ensuring the MLX90423GGO-ACA-430-SP meets ASIL-C requirements for SENT/PWM without external redundancy hardware.
What is the meaning of "linear legacy" in the MLX90423GGO-ACA-430-SP ordering code?
"Linear legacy" (Option Code ACA-430) indicates the MLX90423GGO-ACA-430-SP is pre-programmed for traditional linear position measurement with fixed magnetic circuit assumptions-distinct from the "linear stray field robust" (ACA-230) or "360° trough shaft" variants. It retains full programmability for transfer curve, filtering, and diagnostics but ships with factory-calibrated parameters optimized for legacy throttle/pedal designs without reprogramming.
Can the MLX90423GGO-ACA-430-SP operate directly from a 12 V battery?
Yes-the MLX90423GGO-ACA-430-SP supports battery-supply operation from 6 V to 18 V in PWM and SENT modes, with overvoltage protection up to 28 V for transient conditions. In this configuration, internal regulators derive VDEC (3.3 V analog rail) and VDIG (digital rail) from the battery input. The MLX90423GGO-ACA-430-SP draws 12 mA typical supply current per die (24 mA total), making it suitable for always-on vehicle networks with low quiescent power demands.
What is the guaranteed accuracy specification for the MLX90423GGO-ACA-430-SP in linear legacy mode?
In linear legacy mode, the MLX90423GGO-ACA-430-SP achieves ±0.5% integral non-linearity (INL) and ±0.3° angular error over temperature (-40°C to +160°C) when used with a properly designed magnetic circuit. These values are measured per AEC-Q100 stress testing and include contributions from on-chip DSP linearization, temperature compensation, and stray field rejection-verified in production test across 100% of shipped MLX90423GGO-ACA-430-SP units.
MLX90423GGO-ACA-430-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- -
- Linear Range:
- -
- Output:
- Analog, SENT
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
MLX90423GGO-ACA-430-SP FAQ
1.How can I place an order for MLX90423GGO-ACA-430-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90423GGO-ACA-430-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 MLX90423GGO-ACA-430-SP reliable?
The price and inventory of MLX90423GGO-ACA-430-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90423GGO-ACA-430-SP is usually 5 days.
3.What payment methods are accepted for MLX90423GGO-ACA-430-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90423GGO-ACA-430-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90423GGO-ACA-430-SP?
MLX90423GGO-ACA-430-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90423GGO-ACA-430-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 MLX90423GGO-ACA-430-SP?
For technical support, including MLX90423GGO-ACA-430-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90423GGO-ACA-430-SP requirements.
6.How does Aetrix verify that MLX90423GGO-ACA-430-SP is sourced from the original manufacturer or authorized distributors?
All MLX90423GGO-ACA-430-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 MLX90423GGO-ACA-430-SP meets industry standards.
7.What is the process for return or replacement of MLX90423GGO-ACA-430-SP?
All MLX90423GGO-ACA-430-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90423GGO-ACA-430-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 MLX90423GGO-ACA-430-SP part is unused and in its original packaging.
Return procedure for MLX90423GGO-ACA-430-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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