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Melexis Technologies NV MLX90426GDC-ACB-630-SP
- Part No.:
- MLX90426GDC-ACB-630-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90426GDC-ACB-630-SP.pdf
- Description:
- TRIAXIS MIDRANGE SENSOR FOR 360
- Quantity:
- Payment:
- Shipping:
Inventory:3,468
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Product details
Overview
MLX90426GDC-ACB-630-SP from Melexis is a Triaxis® monolithic magnetic position sensor IC for absolute angular rotary sensing (0°–360°) using differential Z-axis field detection, with SENT output per SAE J2716 APR2016 A.3(H.4), ±1° total accuracy over -40°C to +160°C, and AEC-Q100 Grade 0 qualification for automotive pedal and throttle position sensing.
For engineers reviewing the MLX90426GDC-ACB-630-SP datasheet, pinout, applications, or equivalent options, this page delivers verified SOIC-8 package details, SENT timing values (882–927 µs frame period), stray-field robustness, programmable 17-point linearization, and ISO26262 ASIL B safety element out of context compliance.
Technical Context
The MLX90426GDC-ACB-630-SP integrates a Triaxis® Hall front end, analog-to-digital signal conditioner, DSP-based angle calculation engine, and SENT output driver in a single-die SOIC-8 configuration. It decodes absolute angular position from on-axis rotating magnets via Z-axis field differential sensing, enabling non-contacting operation without mechanical wear.
Its SENT interface supports both synchronous (fixed 294-tick frame) and asynchronous (variable-length) modes, with programmable diagnostics, dual-filtering paths (Filter 0/1/2), and fail-safe state duration configurable from 5–33 ms. The device operates at 4.5–5.5 V supply, draws 8–11.5 mA, and features internal 3.3 V regulated VDEC for analog stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V - Enables direct connection to standard automotive 5 V rail without external regulation |
| Operating Temperature | -40°C to +160°C - Qualified for under-hood automotive environments including transmission and pedal modules |
| Output Protocol | SENT A.3(H.4) with pause pulse - Delivers 12-bit angle data plus CRC, diagnostics, and user-defined fields in standardized automotive format |
| Total Angle Accuracy | ±1° over full range - Achieved via on-chip DSP linearization and temperature compensation, eliminating external calibration |
| Frame Period | 882–927 µs - Fixed synchronous mode frame length enables deterministic ECU sampling and timing budgeting |
| Latency | 1.32–2.03 ms - Low, bounded latency supports real-time closed-loop control in throttle actuation systems |
| Magnetic Range | ±1 T - Robust operation under strong stray fields common near motors, solenoids, and high-current traces |
| Safety Certification | ISO26262 ASIL B SEooC - Provides certified safety mechanisms (CRC, watchdogs, diagnostics) for integration into ASIL B systems |
Pinout & Package
MLX90426GDC-ACB-630-SP uses the SOIC-8 package (JEDEC MS-012AA), with exposed pad not present. Pin assignments are validated per Melexis datasheet Rev. 004 Section 3.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Primary power supply input | Accepts 4.5–5.5 V; powers all internal blocks including Hall front end, ADC, DSP, and SENT driver |
| 2 - Test1 | Factory test access | Internally grounded in application mode; tie to PCB ground for EMC compliance |
| 3 - Test2 | Factory test access | Internally grounded in application mode; tie to PCB ground for EMC compliance |
| 4 - N.C. | No connection | Not bonded; must be connected to ground per datasheet for optimal EMC performance |
| 5 - OUT | SENT serial output | Push-pull digital output compliant with SAE J2716; drives 10–55 kΩ pull-up to VDD |
| 6 - N.C. | No connection | Not bonded; must be connected to ground per datasheet for optimal EMC performance |
| 7 - VDEC | Internal analog regulator decoupling | Requires 100 nF ceramic capacitor to VSS; stabilizes internal 3.3 V reference for precision analog path |
| 8 - VSS | Ground reference | Primary return path for supply, analog, and digital circuits; low-impedance connection required |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Technology | Enables true 3D magnetic field sensing with immunity to planar field interference, allowing accurate Z-axis-only angular decoding |
| Programmable 17-point Linearization | Allows precise correction of magnet nonlinearity and mechanical tolerances without external lookup tables or host MCU computation |
| SENT Output with Diagnostic Frames | Delivers real-time error codes (e.g., broken-wire detection), CRC-protected data, and user-defined fields in one standardized message |
| Stray Field Robustness | Operates reliably in magnetic fields up to ±1 T - critical for placement near electric motors, actuators, or high-current conductors |
| ISO26262 ASIL B SEooC | Provides certified safety mechanisms (watchdog timers, memory ECC, diagnostic cycles) that reduce integration effort for functional safety systems |
| AEC-Q100 Grade 0 Qualification | Validated for 160°C continuous operation and 180°C short-term exposure - meets requirements for engine bay and transmission applications |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Detecting accelerator or brake pedal rotation in modern drive-by-wire vehicles. IC Role / Device Role / Timing Role: Absolute angular position sensor providing SENT-encoded 0°–360° output synchronized to ECU sampling clocks. Use Value: Eliminates potentiometer wear and contact bounce; ±1° accuracy ensures precise torque mapping and emissions control. | Use Scenario: Monitoring throttle valve angle in gasoline and hybrid powertrains. IC Role / Device Role / Timing Role: Primary position feedback device delivering SENT frames every 882–927 µs with <2.03 ms latency. Use Value: Enables fast closed-loop air-fuel ratio control and meets ASIL B functional safety requirements without redundant sensors. |
| Ride Height Control | Steering Wheel Position |
Use Scenario: Measuring suspension travel in adaptive damping and active ride height systems. IC Role / Device Role / Timing Role: Non-contacting rotary sensor mounted on shock absorber shaft or control arm pivot. Use Value: Immunity to dust, moisture, and vibration extends service life beyond potentiometers; stray-field tolerance allows mounting near ABS motor drivers. | Use Scenario: Determining absolute steering wheel angle for EPS assist and ADAS lane-keeping functions. IC Role / Device Role / Timing Role: High-accuracy angular reference with fail-safe output for torque overlay and yaw rate fusion. Use Value: 160°C rating permits placement inside column-mounted EPS modules; SENT diagnostics support fault containment per ISO26262. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic angular position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90426GVE-ACB-630-SP | SMP-3 package (PCB-less, 3-pin), same die revision and SENT configuration | Smaller footprint and lower profile; requires external decoupling but eliminates SOIC-8 routing complexity | Select for space-constrained modules where board area and height are critical, e.g., integrated pedal assemblies |
| MLX90426GGO-BAB-630-SP | TSSOP-16_EP stacked-dice package with dual independent outputs and inter-die isolation | Supports redundancy architectures (e.g., dual-channel ASIL D systems); higher current draw (17–24 mA) | Select when hardware-level fault tolerance is required, such as in steer-by-wire or high-reliability transmission sensors |
Compared with MLX90426GDC-ACB-630-SP, the SMP-3 variant reduces size and assembly cost while maintaining identical sensing performance, whereas the TSSOP-16_EP stacked-dice version adds functional safety redundancy at the expense of power and layout complexity.
Availability
MLX90426GDC-ACB-630-SP is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and ride height adjustment requiring stable component supply, long-term lifecycle continuity, and AEC-Q100-compliant traceability.
Supply support for MLX90426GDC-ACB-630-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 magnetic sensing, infrared thermometry, and automotive ICs, with design centers in Europe and Asia and global manufacturing partnerships.
The MLX90426 belongs to Melexis' Triaxis® position sensor product line, engineered specifically for high-accuracy, stray-field-immune angular measurement in harsh automotive environments where contactless reliability and functional safety are mandatory.
FAQ
What is the operating temperature range of the MLX90426GDC-ACB-630-SP?
The MLX90426GDC-ACB-630-SP is qualified for continuous operation from -40°C to +160°C and supports short-term exposure up to +180°C in SMP-3/SMP-4 packages - though the SOIC-8 variant (MLX90426GDC-ACB-630-SP) is rated to +160°C per AEC-Q100 Grade 0. This range covers under-hood, transmission, and brake module placements without derating.
Does the MLX90426GDC-ACB-630-SP support programmable linearization?
Yes, the MLX90426GDC-ACB-630-SP supports end-user programmable piecewise linear (PWL) transfer characteristics with up to 17 points stored in NVRAM. This allows correction of magnet nonlinearity, mechanical eccentricity, and assembly tolerances directly on the device - no host MCU computation or external calibration is needed for the MLX90426GDC-ACB-630-SP.
What SENT protocol version does the MLX90426GDC-ACB-630-SP implement?
The MLX90426GDC-ACB-630-SP implements SENT per SAE J2716 APR2016, specifically supporting Single Secure Sensor A.3 (H.4) format with pause pulse by default. It delivers 12-bit angle data, CRC nibble, status flags, and optional user-defined fields - all within a fixed 294-tick frame (882–927 µs) in synchronous mode.
Is the MLX90426GDC-ACB-630-SP certified for functional safety applications?
Yes, the MLX90426GDC-ACB-630-SP is certified as an ISO26262 ASIL B Safety Element out of Context (SEooC), with documented safety mechanisms including CRC protection, watchdog timers (AWD/IWD), memory ECC, and diagnostic cycle timing. These features enable its use in ASIL B systems like electronic throttle control without requiring additional safety hardware for the MLX90426GDC-ACB-630-SP itself.
What package type is used by the MLX90426GDC-ACB-630-SP?
The MLX90426GDC-ACB-630-SP uses the SOIC-8 package (package code DC), with pins 1 (VDD), 5 (OUT), 7 (VDEC), and 8 (VSS) active, and pins 2, 3, 4, and 6 designated as Test1, Test2, N.C., and N.C. respectively - all of which must be tied to ground per Melexis EMC guidelines for reliable operation of the MLX90426GDC-ACB-630-SP.
MLX90426GDC-ACB-630-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- SENT
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.2°
- 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:
- 8-SOIC
MLX90426GDC-ACB-630-SP FAQ
1.How can I place an order for MLX90426GDC-ACB-630-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90426GDC-ACB-630-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 MLX90426GDC-ACB-630-SP reliable?
The price and inventory of MLX90426GDC-ACB-630-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90426GDC-ACB-630-SP is usually 5 days.
3.What payment methods are accepted for MLX90426GDC-ACB-630-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90426GDC-ACB-630-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90426GDC-ACB-630-SP?
MLX90426GDC-ACB-630-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90426GDC-ACB-630-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 MLX90426GDC-ACB-630-SP?
For technical support, including MLX90426GDC-ACB-630-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90426GDC-ACB-630-SP requirements.
6.How does Aetrix verify that MLX90426GDC-ACB-630-SP is sourced from the original manufacturer or authorized distributors?
All MLX90426GDC-ACB-630-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 MLX90426GDC-ACB-630-SP meets industry standards.
7.What is the process for return or replacement of MLX90426GDC-ACB-630-SP?
All MLX90426GDC-ACB-630-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90426GDC-ACB-630-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 MLX90426GDC-ACB-630-SP part is unused and in its original packaging.
Return procedure for MLX90426GDC-ACB-630-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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