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Melexis Technologies NV MLX90423GGO-ACA-230-RE
- Part No.:
- MLX90423GGO-ACA-230-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90423GGO-ACA-230-RE.pdf
- Description:
- TRIAXIS POSITION PROCESSOR . SEN
- Quantity:
- Payment:
- Shipping:
Inventory:3,197
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Product details
Overview
MLX90423GGO-ACA-230-RE from Melexis is a Triaxis® Hall-based monolithic magnetic position processor IC for absolute linear position sensing with stray field immunity up to 5 mT. It delivers SENT (SAE J2716 APR2016), PWM, or ratiometric analog output, supports ASIL-C functional safety for digital outputs, and operates from −40°C to +160°C in automotive-grade TSSOP-16 package.
For engineers reviewing the MLX90423GGO-ACA-230-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, pin-level circuit roles, real-world use cases in pedal/throttle sensing, and validated alternative options aligned with AEC-Q100 Grade 0 and ISO 26262 SEooC requirements.
Technical Context
The MLX90423GGO-ACA-230-RE integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic components, enabling robust absolute linear position decoding without mechanical contact. Its on-chip DSP performs stray-field-immune signal processing using programmable multi-point linearization (12–16 points) and configurable filtering.
This variant is pre-programmed for linear stray field robust operation (−2xx option code) and SENT output mode, with full redundancy via dual-die TSSOP-16 packaging. It implements ISO 26262-compliant diagnostics including programmable DCTdig (20 ms) and DCTana (10.64–12.4 ms), fail-safe state duration (5–33 ms), and broken-wire detection on VDD/VSS lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40°C to +160°C - Enables under-hood automotive deployment without external thermal management |
| Supply Voltage | 4.5–5.5 V (regulated) or 6–18 V (battery) - Supports direct battery connection in PWM/SENT modes |
| Output Modes | SENT (SAE J2716 APR2016), PWM, ratiometric analog - Enables interface flexibility with ECU ADCs, microcontrollers, or SENT receivers |
| Functional Safety | ASIL-C for SENT/PWM, ASIL-B for analog - Meets ISO 26262 SEooC requirements for safety-critical position feedback |
| Magnetic Immunity | Stray field robust up to 5 mT (4 kA/m) - Maintains accuracy in high-interference environments like electric powertrains |
| Accuracy | ±0.5° typical angular error in linear stray field robust mode - Ensures precise pedal or throttle position reporting |
| Startup Time | Tstup ≤ 6.26 ms (SENT), Tsafe ≤ 25.9 ms - Guarantees rapid system readiness after power-on reset |
Pinout & Package
MLX90423GGO-ACA-230-RE uses the RoHS-compliant TSSOP-16 package with full redundancy (dual-die architecture), supporting isolated operation between dies and enhanced fault tolerance for ASIL-C applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDEC1 | Decoupling pin die1 | Provides local analog supply filtering for first die; requires 100 nF ceramic capacitor to VSS1 |
| VSS1 | Ground die1 | Reference return path for die1 analog/digital circuits; must be low-impedance PCB plane |
| VDD1 | Supply die1 | Primary power input for die1; accepts 4.5–18 V with internal regulation to 3.3 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 | Dual-die redundant SENT/PWM/analog output channel; enables cross-checking with OUT1 |
| N.C. | Not connected | No internal connection; tie to ground per datasheet for optimal EMC performance |
| VDEC2 | Decoupling pin die2 | Provides local analog supply filtering for second die; requires 100 nF ceramic capacitor to VSS2 |
| VSS2 | Ground die2 | Reference return path for die2; isolated from VSS1 per isolation spec (Risol ≥ 4 MΩ) |
| VDD2 | Supply die2 | Primary power input for die2; 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 | Primary SENT/PWM/analog output channel; synchronized with OUT2 for redundancy validation |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous measurement of Bx, By, Bz enables true 3D magnetic field analysis for stray-field-immune linear position decoding |
| Programmable Linearization | 12–16 point user-defined transfer curve compensates for magnet nonlinearity and mechanical tolerances in production |
| Dual-Die Redundancy | Independent die1/die2 operation with isolated VDD/VSS pins supports lockstep comparison and fault detection per ASIL-C |
| SENT Secure Sensor Format | Embedded CRC, error codes, and user-defined payload enable authenticated, tamper-resistant position reporting to ECUs |
| Broken-Wire Diagnostics | Real-time VDD/VSS open-circuit detection with configurable thresholds ensures fail-safe behavior during harness faults |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator or brake pedal displacement in gasoline, diesel, or hybrid powertrains. IC Role / Device Role / Timing Role: Absolute linear position sensor providing SENT frames at 100–2000 Hz with <6.26 ms startup latency. Use Value: ASIL-C compliance and 5 mT stray field immunity ensure accurate pedal angle reporting despite proximity to high-current traction inverters. | Use Scenario: Detecting throttle valve angular position in engine control units for air-fuel ratio and torque management. IC Role / Device Role / Timing Role: Ratiometric analog or SENT output device delivering ±0.5° accuracy across −40°C to +160°C ambient range. Use Value: Dual-die redundancy and broken-wire diagnostics prevent single-point failures that could cause unintended acceleration or stalling. |
| Ride Height Control | Steering Wheel Position |
Use Scenario: Measuring suspension travel in adaptive damping systems for luxury or off-road vehicles. IC Role / Device Role / Timing Role: Stray-field-robust linear sensor interfacing with vehicle dynamics controllers via SENT protocol. Use Value: Immunity to magnetic interference from adjacent ABS wheel speed sensors eliminates false ride height corrections. | Use Scenario: Tracking steering column rotation for electronic power steering (EPS) torque assist and lane-keeping functions. IC Role / Device Role / Timing Role: High-accuracy absolute position encoder with <2.2 ms worst-case step response for real-time torque calculation. Use Value: Programmable multi-point linearization corrects for gear backlash and magnet misalignment in compact EPS assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90422GGO-ACA-230-RE | Single-die TSSOP-16 variant with identical linear stray field robust configuration and SENT output, but no dual-die redundancy or isolation | Lacks ASIL-C certification path due to absence of hardware redundancy; suitable only for ASIL-B or lower integrity systems | Select when cost sensitivity outweighs functional safety requirements and diagnostic coverage targets |
| TLV493DW2B6HTSA1 | Infineon 3D Hall sensor with I²C output, ±0.5° accuracy, and −40°C to +125°C rating - no SENT support or ASIL-C qualification | Requires external microcontroller for protocol translation and safety monitoring; limited to non-safety-critical industrial or consumer use | Choose for space-constrained designs needing I²C interface and lower temperature range, not automotive safety compliance |
Compared with MLX90423GGO-ACA-230-RE, MLX90422GGO-ACA-230-RE reduces BOM cost by eliminating redundant die but forfeits ASIL-C capability, while TLV493DW2B6HTSA1 offers smaller footprint and I²C flexibility at the expense of automotive qualification and SENT-native integration.
Availability
MLX90423GGO-ACA-230-RE is available at Aetrix Electronics and suitable for pedal position sensing, throttle control, and ride height adjustment requiring stable component supply in automotive OEM and Tier-1 production programs.
Supply support for MLX90423GGO-ACA-230-RE 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 ICs, with over 30 years of sensor innovation and AEC-Q100 leadership.
The MLX90423 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive subsystems, emphasizing stray-field immunity, functional safety compliance, and flexible output protocols to replace legacy potentiometers and resolver-based solutions.
FAQ
What output protocols does the MLX90423GGO-ACA-230-RE support?
The MLX90423GGO-ACA-230-RE supports SENT (SAE J2716 APR2016), PWM, and ratiometric analog outputs. This specific variant is pre-programmed for SENT operation, with field reconfiguration possible to PWM or analog via end-user programming. All modes maintain ASIL-C compliance for digital outputs and operate across the full −40°C to +160°C temperature range.
How does the dual-die architecture in MLX90423GGO-ACA-230-RE improve functional safety?
The MLX90423GGO-ACA-230-RE uses physically isolated die1 and die2 in its TSSOP-16 package, with separate VDD/VSS pins and ≥4 MΩ inter-die isolation resistance. This enables lockstep comparison of OUT1 and OUT2 outputs, detection of single-die faults, and compliance with ISO 26262 ASIL-C requirements through hardware redundancy - a capability absent in single-die alternatives like MLX90422GGO-ACA-230-RE.
What is the magnetic stray field immunity specification for MLX90423GGO-ACA-230-RE?
The MLX90423GGO-ACA-230-RE achieves stray field robustness up to 5 mT (4 kA/m) as specified in ISO 11452-8, validated for linear position sensing configurations. This immunity is enabled by Triaxis® Hall technology and on-chip signal processing, allowing reliable operation near high-current components such as inverters or solenoids without shielding or recalibration.
Can MLX90423GGO-ACA-230-RE be used in battery-powered systems?
Yes, MLX90423GGO-ACA-230-RE supports direct battery connection with supply voltage range 6–18 V for PWM and SENT modes, eliminating need for external regulators. Its supply current is 12 mA (single-die equivalent), and it includes programmable PTC entry levels (VPROV0/VPROV1) to manage wake-up behavior during low-voltage battery conditions.
What diagnostic features are implemented in MLX90423GGO-ACA-230-RE?
MLX90423GGO-ACA-230-RE implements broken-wire detection on VDD and VSS lines, programmable digital (DCTdig = 20 ms) and analog (DCTana = 10.64–12.4 ms) diagnostic cycles, fail-safe state activation within 5–33 ms, and SENT-embedded CRC/error codes. These features collectively satisfy ISO 26262 SEooC requirements for ASIL-C position sensing.
MLX90423GGO-ACA-230-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-230-RE FAQ
1.How can I place an order for MLX90423GGO-ACA-230-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90423GGO-ACA-230-RE 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-230-RE reliable?
The price and inventory of MLX90423GGO-ACA-230-RE 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-230-RE is usually 5 days.
3.What payment methods are accepted for MLX90423GGO-ACA-230-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90423GGO-ACA-230-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90423GGO-ACA-230-RE?
MLX90423GGO-ACA-230-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90423GGO-ACA-230-RE 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-230-RE?
For technical support, including MLX90423GGO-ACA-230-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90423GGO-ACA-230-RE requirements.
6.How does Aetrix verify that MLX90423GGO-ACA-230-RE is sourced from the original manufacturer or authorized distributors?
All MLX90423GGO-ACA-230-RE 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-230-RE meets industry standards.
7.What is the process for return or replacement of MLX90423GGO-ACA-230-RE?
All MLX90423GGO-ACA-230-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90423GGO-ACA-230-RE, 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-230-RE part is unused and in its original packaging.
Return procedure for MLX90423GGO-ACA-230-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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