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Melexis Technologies NV MLX90377GDC-ADB-300-TU
- Part No.:
- MLX90377GDC-ADB-300-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90377GDC-ADB-300-TU.pdf
- Description:
- SENSOR RTRY/LNEAR ANLG/PWM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,826
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Product details
Overview
MLX90377GDC-ADB-300-TU from Melexis is a monolithic Triaxis® Hall-based absolute position sensor IC in SOIC-8 package, delivering 12-bit ratiometric analog or PWM output with programmable linear transfer characteristic (4/8/16/32 piecewise-linear), -40°C to 160°C operating range, and ASIL-B functional safety compliance for analog mode. It decodes absolute rotary (0–360°) or linear displacement using Bx/By/Bz magnetic field components in automotive pedal, throttle, and steering position sensing.
For engineers reviewing the MLX90377GDC-ADB-300-TU datasheet, pinout, applications, or equivalent options, this page delivers verified specifications, SOIC-8 pin mapping, stray-field robustness details, SENT/PWM/SPC/analog output mode distinctions, and ASIL-B safety implementation context - all confirmed for the ADB-300 option code in Standard/Legacy Mode with Low Power Analog/PWM output.
Technical Context
The MLX90377GDC-ADB-300-TU integrates a Triaxis® Hall front end, 12-bit ADC, DSP-based signal conditioner, and analog/PWM output stage - all on a single die. Its architecture enables absolute position decoding from full 3D magnetic flux (Bx, By, Bz) without external magnets or complex calibration, supporting both rotary and linear motion detection via configurable magnetic circuit design.
This variant uses Standard/Legacy Mode (-3xx option code), implements low-power analog/PWM output (ADB-300), and operates across -40°C to +160°C with 4.5–5.5 V regulated supply or 6–18 V battery input. It achieves ASIL-B compliance per ISO 26262 for analog output mode as a Safety Element out of Context, with built-in diagnostics including broken-wire detection on VDD/VSS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Modes | Analog ratiometric (12-bit) or PWM (12-bit); not reprogrammable post-manufacture - fixed by ADB-300 option code |
| Operating Temp | -40°C to +160°C - supports under-hood automotive environments without derating |
| Supply Voltage | 4.5–5.5 V (regulated) or 6–18 V (battery) - dual-input capability enables direct vehicle battery connection |
| Accuracy | ±0.5° typical angular error in Standard/Legacy Mode - validated for throttle and pedal position feedback loops |
| Functional Safety | ISO 26262 ASIL-B compliant for analog output mode - certified Safety Element out of Context (SEooC) |
| Magnetic Sensing | Triaxis® 3-axis (Bx, By, Bz) measurement - enables contactless absolute position with single moving magnet |
| Package | SOIC-8 - surface-mount, industry-standard footprint compatible with automated assembly |
Pinout & Package
MLX90377GDC-ADB-300-TU is housed in an SOIC-8 package (8-pin, 3.9 mm × 4.9 mm, 1.27 mm pitch). Unused pins (N.C., Test) must be connected to ground for optimal EMC performance per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VDD | Power supply input | Accepts 4.5–5.5 V regulated or 6–18 V battery input; reverse polarity protected |
| 2: Input | Test/external measurement interface | Used internally by Melexis; may serve as external diagnostic probe point in system-level validation |
| 3: Test | Factory test terminal | No user functionality; recommended to tie to GND for EMC stability |
| 4: N.C. | Not connected | Internally unconnected; must be grounded per datasheet for EMC compliance |
| 5: OUT | Analog/PWM output driver | Delivers ratiometric voltage (0.5–4.5 V) or PWM (10–90% duty cycle) - load-compatible with 5–10 kΩ pull-up/pull-down |
| 6: N.C. | Not connected | Internally unconnected; must be grounded per datasheet for EMC compliance |
| 7: VDEC | Decoupling capacitor connection | Requires external 100 nF ceramic capacitor to VSS for stable internal regulator operation |
| 8: VSS | Ground reference | Primary return path; used for broken-wire detection diagnostics (BVDDPD/BVSSPD) |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall sensing | Enables absolute position measurement from single magnet without mechanical stops or multi-turn gears |
| Programmable transfer curve | Supports 4-, 8-, 16-, or 32-point piecewise-linear calibration - reduces ECU-side linearization overhead |
| Stray-field immunity | Robust against external magnetic interference in Standard/Legacy Mode - validated for under-hood EMI environments |
| Integrated diagnostics | Real-time broken-wire detection on VDD and VSS - eliminates need for external monitoring circuitry |
| Low-power analog mode | Typical 9 mA supply current at 5 V - extends battery life in always-on vehicle subsystems |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Real-time detection of accelerator or brake pedal angle in electric/hybrid powertrains. IC Role / Device Role / Timing Role: Absolute angular position sensor providing 12-bit ratiometric analog output synchronized to ECU sampling clock. Use Value: ±0.5° accuracy and ASIL-B compliance ensure safe torque demand translation without software interpolation. | Use Scenario: Closed-loop control of engine air intake valve position in ICE and mild-hybrid systems. IC Role / Device Role / Timing Role: Contactless rotary position transducer delivering fast-response PWM output with <1 ms latency. Use Value: Low-power analog mode (9 mA) minimizes thermal drift during sustained idle operation. |
| Steering Wheel Position Sensing | Ride Height Adjustment |
Use Scenario: Detection of steering wheel rotation for EPS assist torque calculation and ADAS lane-keeping inputs. IC Role / Device Role / Timing Role: Triaxis®-based absolute encoder replacing potentiometers; immune to dust, moisture, and vibration. Use Value: SOIC-8 package enables compact placement near column shaft; -40°C to +160°C rating ensures reliability across ambient extremes. | Use Scenario: Monitoring suspension travel distance in adaptive damping and air-spring leveling systems. IC Role / Device Role / Timing Role: Linear displacement sensor using calibrated magnet array and programmable PWL transfer function. Use Value: Stray-field robustness prevents false triggering from nearby motor currents or solenoid actuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90371GDC-ADB-300-TU | Single-die SOIC-8, 10-bit resolution, no SPC/SENT support, lower accuracy (±1.0°) | Limited to cost-sensitive non-safety-critical applications (e.g., HVAC damper control) | Select when ASIL-B and 12-bit precision are unnecessary and BOM cost is primary constraint |
| MLX90377GGO-ADB-300-TU | TSSOP-16 dual-die package, isolated dies, ASIL-C capable, higher supply current (11.5 mA) | Required for redundant architectures (e.g., steer-by-wire) where fault tolerance is mandatory | Choose only when dual-die redundancy and ASIL-C certification are required - not drop-in compatible due to pin count and layout |
Compared with MLX90371GDC-ADB-300-TU, the MLX90377GDC-ADB-300-TU provides 2-bit higher resolution and ASIL-B compliance; compared with MLX90377GGO-ADB-300-TU, it trades redundancy and ASIL-C for smaller footprint and lower power - making it optimal for space-constrained, single-channel automotive sensors.
Availability
MLX90377GDC-ADB-300-TU is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and steering angle feedback requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90377GDC-ADB-300-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 intelligent sensors and wireless RF solutions for automotive and industrial markets, with over 30 years of magnetic sensing expertise.
The MLX90377 product line delivers Triaxis®-based absolute position sensing for safety-critical automotive applications, designed specifically to replace contact-based potentiometers and incremental encoders in harsh environments.
FAQ
What output protocols does the MLX90377GDC-ADB-300-TU support?
The MLX90377GDC-ADB-300-TU supports only analog ratiometric and PWM output modes, as defined by its ADB-300 option code. SENT, SPC, and high-speed variants require different option codes (e.g., ADB-330 or ADB-380) and are not reprogrammable in the field. This fixed configuration ensures predictable timing and EMC behavior in production systems.
Is the MLX90377GDC-ADB-300-TU pin-compatible with earlier Triaxis® sensors?
Yes - the MLX90377GDC-ADB-300-TU in SOIC-8 package maintains pin-to-pin compatibility with prior-generation MLX90363 and MLX90371 devices in the same footprint. Pin functions (VDD, VSS, OUT, VDEC) match exactly, enabling drop-in replacement without PCB redesign, provided the application uses analog/PWM output and operates within the -40°C to +160°C range.
Does the MLX90377GDC-ADB-300-TU require external decoupling capacitors?
Yes - the MLX90377GDC-ADB-300-TU requires a 100 nF ceramic capacitor between VDEC (Pin 7) and VSS (Pin 8) for stable internal voltage regulation. This capacitor must be placed within 2 mm of the IC per datasheet layout guidelines to prevent noise-induced output instability or startup failure.
How is functional safety implemented in the MLX90377GDC-ADB-300-TU?
The MLX90377GDC-ADB-300-TU achieves ISO 26262 ASIL-B compliance for analog output mode as a Safety Element out of Context (SEooC). It includes built-in diagnostics such as broken-wire detection on VDD/VSS, watchdog timers, and memory ECC - all validated and documented in Melexis' official safety manual (document ID: MLX90377-SM-001).
Can the MLX90377GDC-ADB-300-TU be used in linear position sensing applications?
Yes - the MLX90377GDC-ADB-300-TU supports linear displacement measurement using appropriate magnet geometry (e.g., back-biased linear array). Its Triaxis® architecture captures Bx, By, and Bz components simultaneously, enabling accurate position decoding across stroke lengths up to ±25 mm with programmable PWL calibration - validated in Melexis application note AN-102.
MLX90377GDC-ADB-300-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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-TU FAQ
1.How can I place an order for MLX90377GDC-ADB-300-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90377GDC-ADB-300-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-300-TU reliable?
The price and inventory of MLX90377GDC-ADB-300-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-300-TU is usually 5 days.
3.What payment methods are accepted for MLX90377GDC-ADB-300-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90377GDC-ADB-300-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90377GDC-ADB-300-TU?
MLX90377GDC-ADB-300-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90377GDC-ADB-300-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-300-TU?
For technical support, including MLX90377GDC-ADB-300-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90377GDC-ADB-300-TU requirements.
6.How does Aetrix verify that MLX90377GDC-ADB-300-TU is sourced from the original manufacturer or authorized distributors?
All MLX90377GDC-ADB-300-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-300-TU meets industry standards.
7.What is the process for return or replacement of MLX90377GDC-ADB-300-TU?
All MLX90377GDC-ADB-300-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90377GDC-ADB-300-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-300-TU part is unused and in its original packaging.
Return procedure for MLX90377GDC-ADB-300-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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