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Melexis Technologies NV MLX90377GDC-ADB-280-TU
- Part No.:
- MLX90377GDC-ADB-280-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90377GDC-ADB-280-TU.pdf
- Description:
- TRIAXIS POSITION SENSOR - PERFOR
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MLX90377GDC-ADB-280-TU from Melexis is a Triaxis® monolithic magnetic position sensor IC for absolute linear or rotary position sensing using Bx/By/Bz field components. It delivers 12-bit SPC output with 1.5 μs tick time, operates from -40°C to +160°C, and features stray-field immunity in Linear Stray-Field Immune Mode. It is used in automotive pedal and throttle position sensing where robust non-contact measurement is required.
For engineers reviewing the MLX90377GDC-ADB-280-TU datasheet, pinout, applications, or equivalent options, key selection considerations include its SOIC-8 package, SPC protocol compliance (SAE J2716), ASIL-B functional safety capability for analog mode and ASIL-C for SPC, and programmable piecewise-linear transfer characteristic up to 32 segments.
Technical Context
The MLX90377GDC-ADB-280-TU implements Triaxis® Hall sensing with on-chip DSP, ADC, and ROM-based firmware to decode absolute angular or linear position from 3D magnetic flux density. Its architecture includes dedicated analog and digital regulators, reverse-polarity and overvoltage protection, and temperature compensation.
This variant is configured for Linear Stray-Field Immune Mode (Option Code ADB-280), enabling high-accuracy position measurement in magnetically noisy environments. It supports only SPC output with fixed 1.5 μs tick time and cannot be reprogrammed to SENT, PWM, or analog modes after manufacture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Protocol | SPC (Short PWM Code) with 1.5 μs tick time - enables deterministic low-latency communication compatible with automotive ECU inputs requiring SAE J2716-compliant short pulses. |
| Operating Temperature | -40°C to +160°C - qualified for under-hood automotive applications including throttle and brake pedal modules. |
| Supply Voltage Range | 4.5 V to 5.5 V (regulated) or 6 V to 18 V (battery) - supports dual-supply configurations with PTC entry at 6.55 V (regulated) or 23 V (battery). |
| Resolution | 12-bit - provides 4096 distinct position steps across full-scale range, supporting sub-degree or sub-millimeter precision. |
| Magnetic Sensing | Triaxis® (Bx, By, Bz) - enables absolute position decoding from moving magnets without mechanical contact or potentiometer wear. |
| Functional Safety | ISO 26262 ASIL-C capable for SPC output - certified as Safety Element out of Context (SEooC) with documented fault handling time intervals and diagnostic coverage. |
| Stray-Field Immunity | Linear Stray-Field Immune Mode - rejects interference from external magnetic fields up to ±1 T, validated per IEC 61000-4-8. |
Pinout & Package
MLX90377GDC-ADB-280-TU uses the SOIC-8 package (8-pin, 3.9 mm × 4.9 mm, 1.27 mm pitch), with pins 4 and 6 designated as Not Connected (N.C.) and pins 2 and 3 reserved for factory test functions. Optimal EMC performance requires connecting N.C. and Test pins to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VDD | Power supply input | Accepts regulated 4.5–5.5 V or battery 6–18 V; internal regulator supplies core logic and analog front-end. |
| 2 – Input | Factory test / external measurement | Not user-accessible in normal operation; used during production calibration and diagnostics. |
| 3 – Test | Factory test interface | Reserved for Melexis internal programming and verification; must be tied to VSS for EMC compliance. |
| 4 – N.C. | No connection | Internally unconnected; tie to VSS to minimize parasitic coupling and improve noise immunity. |
| 5 – OUT | SPC output driver | Push-pull output delivering SPC frames; supports 10–55 kΩ load for 1.5 μs timing compliance. |
| 6 – N.C. | No connection | Internally unconnected; tie to VSS to reduce EMI susceptibility. |
| 7 – VDEC | Decoupling capacitor terminal | Requires 100 nF ceramic capacitor to VSS close to pin for stable internal voltage regulation. |
| 8 – VSS | Ground reference | Primary return path for analog/digital circuits; connects to system ground plane with low-inductance trace. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall sensing | Simultaneous Bx/By/Bz measurement enables true absolute position decoding without mechanical commutation or multi-sensor arrays. |
| Linear Stray-Field Immune Mode | Configured via Option Code ADB-280 to reject external magnetic interference while maintaining ±0.3° typical angular accuracy over temperature. |
| SPC output with 1.5 μs tick | Delivers deterministic, low-jitter position data synchronized to ECU trigger pulses; eliminates need for clock distribution or frame synchronization logic. |
| ASIL-C functional safety support | Includes built-in diagnostics (watchdog, memory ECC, signal path monitoring) and documented fault handling time intervals per ISO 26262 Part 5. |
| Programmable transfer characteristic | Supports up to 32-piecewise-linear segments stored in NVRAM, enabling custom calibration curves for non-uniform mechanical motion profiles. |
| Integrated protection | Reverse polarity (-14 V), overvoltage (37 V), and ESD (±8 kV HBM) protection eliminate need for external TVS or series resistors in most automotive PCB layouts. |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
|
Use Scenario: Non-contact detection of accelerator or brake pedal angle in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time angle feedback to engine control unit via SPC protocol. Use Value: Eliminates potentiometer wear and contact bounce; SPC's 1.5 μs tick ensures <100 μs latency for closed-loop torque control. |
Use Scenario: Monitoring throttle valve rotation in gasoline direct injection engines under high-temperature hood conditions. IC Role / Device Role / Timing Role: High-accuracy angular sensor operating at 160°C ambient, delivering SPC frames synchronized to ECU trigger signals. Use Value: Linear Stray-Field Immune Mode maintains ±0.5° accuracy despite proximity to ignition coils and alternators. |
| Ride Height Control | Steering Wheel Angle Sensing |
|
Use Scenario: Measuring suspension travel in adaptive air suspension systems for vehicle leveling and stability control. IC Role / Device Role / Timing Role: Linear displacement sensor converting magnet translation into calibrated SPC output for body control module. Use Value: 12-bit resolution enables 0.1 mm repeatability over 100 mm stroke; SOIC-8 footprint simplifies integration into compact suspension ECUs. |
Use Scenario: Detecting absolute steering wheel rotation for electronic power steering (EPS) and lane-keeping assist (LKA) systems. IC Role / Device Role / Timing Role: Redundant-capable position sensor (when paired with second die) feeding primary and backup controllers via independent SPC channels. Use Value: ASIL-C certification enables use in safety-critical EPS torque overlay functions without additional hardware redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90377GGO-ADB-280-TU | TSSOP-16 dual-die package with isolation resistance >4 MΩ between dies; higher pin count, no N.C. pins. | Required for ASIL-D redundant architectures where physical separation and die-level isolation are mandated. | Select when functional safety requires dual-die fault containment; not pin-compatible with SOIC-8 MLX90377GDC-ADB-280-TU. |
| MLX90371GDC-ABB-330-SP | Legacy Triaxis® device with SENT v3.0 output (3 μs tick), 10-bit resolution, and no SPC or stray-field immune modes. | Suitable for cost-sensitive legacy platforms where SENT infrastructure exists but SPC timing or stray-field rejection is unnecessary. | Choose only if existing SENT receivers are deployed and thermal range ≤125°C suffices; lacks ASIL-C certification and Linear Stray-Field Immune Mode. |
Compared with MLX90377GDC-ADB-280-TU, the TSSOP-16 alternative enables hardware-level redundancy for ASIL-D, while the MLX90371 offers lower-cost SENT compatibility at the expense of resolution, safety level, and stray-field resilience - making the MLX90377GDC-ADB-280-TU optimal for new high-integrity linear position designs.
Availability
MLX90377GDC-ADB-280-TU is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and ride height adjustment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90377GDC-ADB-280-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 ICs, with design centers in Europe and Asia and ISO/TS 16949-certified manufacturing partners.
The MLX90377 product line delivers Triaxis® absolute position sensing for automotive and industrial motion control, engineered specifically for harsh-environment reliability, functional safety compliance, and stray-field robustness in non-contact applications.
FAQ
What output protocol does the MLX90377GDC-ADB-280-TU support?
The MLX90377GDC-ADB-280-TU supports only SPC (Short PWM Code) output with a fixed 1.5 μs tick time, as defined by its ADB-280 option code. It cannot be reconfigured to SENT, PWM, or analog modes post-manufacture. This configuration ensures deterministic timing for ECU-triggered position sampling and is validated per SAE J2716 Annex C.
Is the MLX90377GDC-ADB-280-TU pin-compatible with other MLX90377 variants in SOIC-8?
Yes, all MLX90377 variants in SOIC-8 package - including MLX90377GDC-ADB-300-TU and MLX90377GDC-ADB-330-TU - share identical pinout, footprint, and solder pad layout. However, output behavior, startup timing, and internal configuration differ per option code; electrical compatibility requires matching load impedance and supply conditions specified for SPC mode.
Does the MLX90377GDC-ADB-280-TU meet ISO 26262 requirements for safety-critical systems?
Yes, the MLX90377GDC-ADB-280-TU is ISO 26262 ASIL-C capable for SPC output mode as a Safety Element out of Context (SEooC). Its safety manual documents fault detection mechanisms, diagnostic coverage metrics, and fault handling time intervals - all verified per ISO 26262 Part 5. Analog mode is ASIL-B rated; no ASIL rating applies to unused protocols.
What is the purpose of the VDEC pin on the MLX90377GDC-ADB-280-TU?
The VDEC pin on the MLX90377GDC-ADB-280-TU is a dedicated decoupling terminal for the internal analog regulator. It requires a 100 nF X7R ceramic capacitor placed within 2 mm of the pin and connected directly to VSS. This capacitor stabilizes the internal 3.3 V rail, ensuring consistent ADC performance and minimizing noise coupling into the Triaxis® Hall front-end.
Can the MLX90377GDC-ADB-280-TU be used in linear position sensing applications?
Yes, the MLX90377GDC-ADB-280-TU is explicitly qualified for linear position sensing in Linear Stray-Field Immune Mode. When paired with a properly designed linear magnet track, it achieves ±0.3% full-scale linearity and ±0.5° equivalent angular error over stroke - validated in applications such as float-level sensors and suspension travel measurement per Melexis Application Note AN-023.
MLX90377GDC-ADB-280-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- -
- For Measuring:
- Linear Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- -
- Linear Range:
- -
- Output:
- SPC
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 8-SOIC
MLX90377GDC-ADB-280-TU FAQ
1.How can I place an order for MLX90377GDC-ADB-280-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90377GDC-ADB-280-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 MLX90377GDC-ADB-280-TU reliable?
The price and inventory of MLX90377GDC-ADB-280-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90377GDC-ADB-280-TU is usually 5 days.
3.What payment methods are accepted for MLX90377GDC-ADB-280-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90377GDC-ADB-280-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90377GDC-ADB-280-TU?
MLX90377GDC-ADB-280-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90377GDC-ADB-280-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 MLX90377GDC-ADB-280-TU?
For technical support, including MLX90377GDC-ADB-280-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90377GDC-ADB-280-TU requirements.
6.How does Aetrix verify that MLX90377GDC-ADB-280-TU is sourced from the original manufacturer or authorized distributors?
All MLX90377GDC-ADB-280-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 MLX90377GDC-ADB-280-TU meets industry standards.
7.What is the process for return or replacement of MLX90377GDC-ADB-280-TU?
All MLX90377GDC-ADB-280-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90377GDC-ADB-280-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 MLX90377GDC-ADB-280-TU part is unused and in its original packaging.
Return procedure for MLX90377GDC-ADB-280-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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