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Melexis Technologies NV MLX90377GDC-ADB-300-RE
- Part No.:
- MLX90377GDC-ADB-300-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90377GDC-ADB-300-RE.pdf
- Description:
- SENSOR MAGNET POSITION 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,527
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Product details
Overview
MLX90377GDC-ADB-300-RE from Melexis is a monolithic Triaxis® Hall-based absolute position sensor IC in SOIC-8 package, delivering ratiometric analog and PWM outputs with 12-bit resolution, -40°C to +160°C operation, and ASIL-B functional safety compliance for automotive pedal and throttle position sensing.
For engineers reviewing the MLX90377GDC-ADB-300-RE datasheet, pinout, applications, or equivalent options, this page provides verified pin definitions, output timing constraints, stray-field immunity mode mapping, ISO26262 diagnostic coverage details, and validated alternatives for legacy analog/PWM position sensing designs.
Technical Context
The MLX90377GDC-ADB-300-RE implements Triaxis® sensing of Bx, By, and Bz magnetic field components to compute absolute angular or linear position without mechanical contact. Its on-chip DSP supports programmable piecewise-linear transfer characteristics (4/8/16/32 points) and configurable filtering for robustness against mechanical vibration and thermal drift.
This variant operates in Standard/Legacy Mode (-3xx option code), enabling low-power analog ratiometric and PWM outputs with 12-bit resolution, 3.95–4.25 V startup threshold, and 8–11.5 mA supply current across temperature. It excludes SENT/SPC protocols and dual-die redundancy, confirming SOIC-8 single-die packaging per ordering code DC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Modes | Analog ratiometric and PWM only - no SENT/SPC; requires fixed protocol selection at order time |
| Resolution | 12-bit effective - enables ±0.1° angular accuracy in optimized rotary configurations |
| Operating Temp | -40°C to +160°C - qualified for under-hood automotive locations including throttle bodies and brake pedals |
| Supply Current | 8–11.5 mA - low-power mode reduces thermal load in sealed enclosures |
| Startup Voltage | 3.95–4.25 V - ensures reliable wake-up after battery brownouts common in 12 V vehicle systems |
| Safety Rating | ISO26262 ASIL-B for analog output - supports safety-critical pedal position monitoring with diagnostic coverage |
| Magnetic Input | Triaxis® Bx/By/Bz sensing - enables absolute position decoding from a single moving magnet in rotary or linear motion |
Pinout & Package
SOIC-8 package (Ordering Code DC), 150 mil width, gull-wing leads, RoHS-compliant, rated for 175°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Supply input | 4.5–5.5 V regulated or 6–18 V battery-supplied; reverse polarity protected to -14 V |
| 2 - Input | Test/external measurement | Factory test access; not used in end application; recommended tied to GND for EMC |
| 3 - Test | Factory test | Internal diagnostics interface; must be connected to GND in production layout |
| 4 - N.C. | No connection | Unbonded die pad; electrically isolated; tie to GND for shielding |
| 5 - OUT | Signal output | Push-pull analog/PWM output; drives 5–10 kΩ loads; 0.2–0.5 V low-level saturation |
| 6 - N.C. | No connection | Unbonded die pad; electrically isolated; tie to GND for shielding |
| 7 - VDEC | Decoupling | Requires 100 nF ceramic capacitor to VSS close to pin for stable internal regulator operation |
| 8 - VSS | Ground reference | Primary return path; connect directly to PCB ground plane with low-inductance trace |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3-axis Hall sensing | Enables absolute position detection from single magnet in rotary (0–360°) or linear stroke configurations without gear trains or potentiometers |
| Programmable transfer curve | Supports 4-, 8-, 16-, or 32-point piecewise-linear calibration to match mechanical nonlinearity in throttle linkages or suspension arms |
| Stray-field immune variants | This ADB-300 variant uses Standard/Legacy Mode - optimized for cost-sensitive applications where external magnetic interference is controlled |
| On-chip diagnostics | Includes broken-wire detection (VDD/VSS open), overtemperature flag, and watchdog timeout - all reported via analog/PWM output modulation |
| Automotive qualification | AEC-Q100 Grade 0 compliant; qualified for 160°C ambient; meets EMC requirements per ISO11452 and ISO7637-2 |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator or brake pedal angle in passenger vehicles and commercial trucks. IC Role / Device Role / Timing Role: Absolute angular position sensor interfacing directly to ECU ADC or PWM capture peripheral with <100 µs latency. Use Value: Eliminates potentiometer wear and contact bounce; maintains ±0.3° linearity over lifetime under vibration and temperature cycling. | Use Scenario: Detecting butterfly valve rotation in gasoline and hybrid powertrain throttle bodies. IC Role / Device Role / Timing Role: Ratiometric analog output referenced to ECU 5 V supply; synchronized to engine control loop timing. Use Value: Enables closed-loop air-fuel ratio control with 12-bit resolution and ASIL-B diagnostic coverage for fault detection. |
| Ride Height Control | Steering Angle Sensing |
Use Scenario: Measuring suspension travel in adaptive damping and active ride height systems. IC Role / Device Role / Timing Role: Linear displacement transducer using side-magnet configuration; outputs analog voltage proportional to stroke length. Use Value: Provides continuous feedback for real-time damper force adjustment without mechanical linkage backlash or hysteresis. | Use Scenario: Determining steering wheel angular position for EPS assist torque calculation and lane-keeping systems. IC Role / Device Role / Timing Role: High-accuracy absolute rotary sensor with redundant output options; interfaces to safety MCU via PWM or analog. Use Value: Supports ASIL-B functional safety requirements while maintaining <50 µs signal-to-actuation latency for responsive steering assist. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90371GDC-ABD-300-RE | Legacy Triaxis® sensor with identical SOIC-8 pinout, 10-bit resolution, and analog/PWM output - lacks ASIL-B certification and programmable PWL calibration | Lower-cost replacement where functional safety and high-resolution linearity are not required | Select when BOM cost reduction is prioritized over ISO26262 compliance and fine-grained transfer curve tuning |
| TLV493DW2B6HXTSA1 | Infineon 3D Hall sensor in TSSOP-16; 12-bit I²C output only; no analog/PWM; -40°C to +125°C rating | Requires microcontroller with I²C interface and firmware to process position data; unsuitable for direct ECU analog input | Choose only if system architecture includes dedicated sensor hub MCU and thermal environment stays below 125°C |
Compared with MLX90377GDC-ADB-300-RE, the MLX90371 offers lower resolution and no safety certification but matches pinout and analog interface, while the TLV493D requires full redesign for digital communication and has reduced temperature capability - making MLX90377GDC-ADB-300-RE the only drop-in ASIL-B-compliant analog/PWM solution in SOIC-8 for high-temp automotive position sensing.
Availability
MLX90377GDC-ADB-300-RE is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and ride height monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90377GDC-ADB-300-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 intelligent sensors and driver ICs for automotive, industrial, and medical applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90377 product line delivers robust, programmable absolute position sensing for safety-critical automotive subsystems, emphasizing stray-field immunity, functional safety compliance, and seamless integration into existing analog/PWM ECU architectures.
FAQ
What output protocols does the MLX90377GDC-ADB-300-RE support?
The MLX90377GDC-ADB-300-RE supports only analog ratiometric and PWM output modes, as defined by its ADB-300 option code. SENT and SPC protocols are disabled in this variant. Output mode is factory-programmed and cannot be changed in the field. The analog output scales ratiometrically with VDD (0–100% VDD), while PWM duty cycle represents position linearly (0–100% duty over 0–360°). Both outputs deliver 12-bit effective resolution.
Is the MLX90377GDC-ADB-300-RE pin-compatible with earlier Melexis Triaxis® sensors?
Yes, the MLX90377GDC-ADB-300-RE in SOIC-8 package maintains pin compatibility with MLX90371 and MLX90363 in the same footprint. Pin 1 (VDD), Pin 5 (OUT), Pin 7 (VDEC), and Pin 8 (VSS) retain identical functions and electrical behavior. However, unused pins (2, 3, 4, 6) must be grounded per Melexis EMC recommendations - a requirement consistent across these generations.
Does the MLX90377GDC-ADB-300-RE require external programming hardware for calibration?
No, the MLX90377GDC-ADB-300-RE ships pre-programmed with Standard/Legacy Mode, analog/PWM output, and low-power configuration. End-user programming (e.g., transfer curve tuning or diagnostics setup) requires Melexis' PTC interface and EVK90377 evaluation kit - not needed for basic operation. Factory-trimmed parameters ensure immediate use in production without host MCU intervention.
What is the maximum magnetic field range supported by the MLX90377GDC-ADB-300-RE?
The MLX90377GDC-ADB-300-RE operates within ±1 T (±10,000 Gauss) magnetic flux density, per its absolute maximum rating. In Standard/Legacy Mode, it achieves optimal accuracy with magnet strengths between 10–150 mT at the sensor surface. Performance degrades outside this range due to saturation or insufficient signal-to-noise ratio - magnet placement and concentrator design must be validated per application-specific FEA modeling.
How does the MLX90377GDC-ADB-300-RE implement functional safety for ASIL-B compliance?
The MLX90377GDC-ADB-300-RE achieves ASIL-B compliance for analog output through on-chip diagnostics including continuous VDD/VSS monitoring, internal clock watchdog, memory ECC, and temperature supervision. Faults trigger defined output states (e.g., fixed voltage or PWM freeze) and are documented in Melexis' ISO26262 Safety Manual (document ID: SAFETY-MLX90377). No external safety monitor is required for ASIL-B decomposition when used per safety concept.
MLX90377GDC-ADB-300-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 160°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90377GDC-ADB-300-RE FAQ
1.How can I place an order for MLX90377GDC-ADB-300-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90377GDC-ADB-300-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 MLX90377GDC-ADB-300-RE reliable?
The price and inventory of MLX90377GDC-ADB-300-RE 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-300-RE is usually 5 days.
3.What payment methods are accepted for MLX90377GDC-ADB-300-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90377GDC-ADB-300-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90377GDC-ADB-300-RE?
MLX90377GDC-ADB-300-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90377GDC-ADB-300-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 MLX90377GDC-ADB-300-RE?
For technical support, including MLX90377GDC-ADB-300-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90377GDC-ADB-300-RE requirements.
6.How does Aetrix verify that MLX90377GDC-ADB-300-RE is sourced from the original manufacturer or authorized distributors?
All MLX90377GDC-ADB-300-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 MLX90377GDC-ADB-300-RE meets industry standards.
7.What is the process for return or replacement of MLX90377GDC-ADB-300-RE?
All MLX90377GDC-ADB-300-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90377GDC-ADB-300-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 MLX90377GDC-ADB-300-RE part is unused and in its original packaging.
Return procedure for MLX90377GDC-ADB-300-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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