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Melexis Technologies NV MLX90371GDC-BCC-300-RE
- Part No.:
- MLX90371GDC-BCC-300-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90371GDC-BCC-300-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,871
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Product details
Overview
MLX90371GDC-BCC-300-RE from Melexis is a Triaxis® monolithic position processor IC that senses BX, BY, and BZ magnetic field components to deliver absolute rotary or linear position output with 12-bit resolution, ±10-bit thermal accuracy, and programmable analog or PWM output in SOIC-8 package. It operates from -40°C to +160°C and supports legacy mode for backward compatibility with prior-generation designs.
For engineers reviewing the MLX90371GDC-BCC-300-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, real-world timing and accuracy specs, SOIC-8 pin mapping, functional safety (ASIL-B SEooC), stray-field immunity configuration, and validated alternatives for automotive pedal, throttle, and steering position sensing.
Technical Context
The MLX90371GDC-BCC-300-RE implements Triaxis® Hall sensing with on-chip DSP, ADC, and NVRAM to compute absolute angular or linear position from 3-axis magnetic flux density inputs. Its architecture includes integrated regulator, reverse-polarity/overvoltage protection, and programmable FIR filtering with latency as low as 440 μs and step response under 2.5 ms.
This variant uses Standard/Legacy Mode (BCC-300), enabling backward compatibility with earlier MLX9036x devices while retaining full 12-bit analog/PWM output capability, 48-bit ID option, and ISO26262 ASIL-B Safety Element out of Context compliance without requiring external safety hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V - Operates within standard automotive 5 V rail tolerance; supports robust start-up at 4.1 V. |
| Operating Temperature | -40°C to +160°C - Qualified for under-hood and transmission-mounted applications. |
| Output Resolution | 12-bit - Delivers 4096 distinct position steps over full range; enables sub-degree angular precision. |
| Thermal Accuracy | ±10-bit - Maintains ≤0.1% full-scale error across full temperature range without calibration. |
| Latency Time | 440–462 μs - Enables real-time closed-loop control in fast-response systems like electronic throttle control. |
| PWM Frequency | 150–2000 Hz - Configurable for noise-immune digital feedback compatible with standard microcontroller capture inputs. |
| Supply Current | 6–10 mA - Low quiescent draw suitable for always-on vehicle subsystems. |
| Magnetic Immunity | Standard/Legacy Mode - Provides baseline stray-field rejection per ISO11452-8 without dedicated shielding. |
Pinout & Package
MLX90371GDC-BCC-300-RE is housed in an industry-standard SOIC-8 package (8-pin, 150 mil width) with exposed pad for thermal performance and EMC stability. Unused pins (Pin 4, Pin 2, Pin 3) must be tied to VSS per datasheet recommendation to ensure optimal electromagnetic compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VDD | Power Supply Input | Primary 4.5–5.5 V supply rail; internal regulator feeds all analog/digital blocks. |
| 2 – Test Input | Factory Test Interface | Used during wafer sort and final test; must be grounded in end application per EMC guidance. |
| 3 – Test | Factory Test Interface | Test clock/data access point; no functional role in operation; tie to VSS. |
| 4 – Not Used | Unbonded Pad | No internal connection; recommended to connect to VSS for mechanical stability and EMI reduction. |
| 5 – OUT | Programmable Output | Configurable ratiometric analog (0–100% VDD) or PWM output; drives 5 kΩ load minimum. |
| 6 – VSSD | Digital Ground | Dedicated ground return for digital logic and output stage; separate from analog ground. |
| 7 – VDEC | Internal Regulator Decoupling | Connect 100 nF ceramic capacitor to VSSA to stabilize on-chip LDO output. |
| 8 – VSSA | Analog Ground | Reference ground for Hall sensors, ADC, and analog signal chain; isolate from noisy digital returns. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3-Axis Sensing | Simultaneous BX/BY/BZ measurement enables true absolute position decoding without mechanical cam or gear constraints. |
| Programmable Transfer Characteristic | Supports 4-point, 8-point, or 16-/32-segment piecewise-linear calibration to match custom mechanical travel profiles. |
| ISO26262 ASIL-B SEooC | Delivers certified functional safety capability without requiring additional hardware diagnostics or redundancy layers. |
| Stray-Field Immunity (Legacy Mode) | BCC-300 configures internal signal processing for baseline rejection of external magnetic interference per OEM legacy requirements. |
| On-Chip NVRAM & DSP | Stores user-programmed parameters (gain, offset, clamping, diagnostics) and executes real-time position computation without host MCU intervention. |
| 48-bit Unique ID | Enables traceability, secure firmware binding, and anti-counterfeit verification in production and service environments. |
Applications
| Pedal Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Monitoring accelerator or brake pedal angle in electric/hybrid powertrain systems where contactless reliability is mandatory. IC Role / Device Role / Timing Role: Absolute position processor delivering real-time analog or PWM output synchronized to engine control unit sampling clocks. Use Value: Eliminates potentiometer wear-out; maintains ±0.5° accuracy over 10M+ cycles and full temperature range without recalibration. | Use Scenario: Closed-loop feedback for electronic throttle body actuation in gasoline and flex-fuel engines. IC Role / Device Role / Timing Role: Primary position sensor feeding ECU with <462 μs latency to support 100 Hz+ control loop bandwidth. Use Value: Enables precise torque management and meets OBD-II diagnostic readiness requirements via built-in passive broken-wire detection. |
| Steering Wheel Position Sensing | Ride Height Control |
Use Scenario: Measuring steering angle for EPS assist torque calculation and ADAS lane-keeping input. IC Role / Device Role / Timing Role: Ratiometric analog output referenced to vehicle battery voltage, immune to supply ripple up to 100 mVpp. Use Value: Supports dual-sensor redundancy schemes with identical transfer characteristics and ASIL-B safety certification. | Use Scenario: Detecting suspension compression/expansion in adaptive air ride systems for automatic leveling and damping adjustment. IC Role / Device Role / Timing Role: Linear displacement transducer with programmable scaling to match mechanical lever ratio and stroke length. Use Value: Achieves ±0.2 mm repeatability over 15-year vehicle life using only magnet and PCB assembly-no springs or bearings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90372GDC-BCC-300-RE | Same SOIC-8 package and BCC-300 legacy mode, but adds enhanced stray-field immunity via updated algorithm and improved INL spec (±0.3° vs ±0.5°). | Preferred for new designs targeting higher EMC robustness in high-motor-noise zones (e.g., near inverters or DC-DC converters). | Select MLX90372GDC-BCC-300-RE if upgrading legacy systems where tighter angular linearity and extended stray-field margin are required. |
| AMS30450-TSOT23-3 | TSOT23-3 package, single-axis Hall-based, 10-bit output, no ASIL-B certification, no programmable transfer function. | Limited to simple on/off or coarse position detection; unsuitable for safety-critical or high-accuracy continuous feedback. | Consider AMS30450-TSOT23-3 only for cost-sensitive non-safety applications with <1° accuracy tolerance and no functional safety requirement. |
Compared with MLX90371GDC-BCC-300-RE, the MLX90372GDC-BCC-300-RE offers measurable improvement in angular linearity and stray-field resilience while maintaining pin and code compatibility, whereas the AMS30450-TSOT23-3 lacks safety certification, programmability, and multi-axis capability-making it a non-drop-in alternative for less demanding use cases.
Availability
MLX90371GDC-BCC-300-RE is available at Aetrix Electronics and suitable for automotive pedal position sensing, throttle control systems, and steering angle monitoring requiring stable component supply across long production lifecycles and rigorous environmental qualification.
Supply support for MLX90371GDC-BCC-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 consumer applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90371 product line delivers Triaxis® absolute position sensing solutions designed specifically for safety-critical automotive subsystems including powertrain, chassis, and ADAS, emphasizing ASIL-B compliance, high-temperature operation, and field immunity.
FAQ
What is the operating temperature range of the MLX90371GDC-BCC-300-RE?
The MLX90371GDC-BCC-300-RE is qualified for continuous operation from -40°C to +160°C ambient temperature, meeting AEC-Q100 Grade 0 requirements. This range supports placement in harsh under-hood locations such as near transmissions, exhaust manifolds, or brake modules where thermal cycling and sustained high temperatures occur. The device maintains specified accuracy and latency performance across the full range without derating.
Does the MLX90371GDC-BCC-300-RE support both analog and PWM outputs?
Yes, the MLX90371GDC-BCC-300-RE supports both ratiometric analog output (0–100% VDD) and programmable PWM output (150–2000 Hz). Output mode is selected via on-chip NVRAM programming; no external components are needed to switch between modes. The analog output drives ≥5 kΩ loads, while PWM supports push-pull drive into 4.7 kΩ with rise/fall times under 11 μs.
What does "BCC-300" signify in MLX90371GDC-BCC-300-RE?
"BCC-300" identifies the MLX90371GDC-BCC-300-RE as the Standard / Legacy Mode variant, configured for backward compatibility with earlier MLX9036x-series devices. It uses the original signal processing algorithm and transfer function structure, enabling drop-in replacement in existing designs without revalidation of magnetic circuit or calibration data.
Is the MLX90371GDC-BCC-300-RE certified for functional safety applications?
Yes, the MLX90371GDC-BCC-300-RE is certified as an ISO26262 ASIL-B Safety Element out of Context (SEooC). This means its internal diagnostics-including watchdog timers, memory ECC, supply monitoring, and output clamping-are independently verified to meet ASIL-B requirements, allowing integration into ASIL-B or lower automotive safety architectures without additional hardware-level fault detection.
How is stray magnetic field immunity implemented in MLX90371GDC-BCC-300-RE?
The MLX90371GDC-BCC-300-RE achieves baseline stray-field immunity through differential Triaxis® sensing and proprietary on-chip DSP filtering in Standard/Legacy Mode. Unlike BCC-100 or BCC-200 variants, it does not employ active cancellation or specialized magnetic concentrators-but still meets ISO11452-8 immunity thresholds for typical automotive environments when paired with appropriate magnet geometry and shielding.
MLX90371GDC-BCC-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
MLX90371GDC-BCC-300-RE FAQ
1.How can I place an order for MLX90371GDC-BCC-300-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90371GDC-BCC-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 MLX90371GDC-BCC-300-RE reliable?
The price and inventory of MLX90371GDC-BCC-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 MLX90371GDC-BCC-300-RE is usually 5 days.
3.What payment methods are accepted for MLX90371GDC-BCC-300-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90371GDC-BCC-300-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90371GDC-BCC-300-RE?
MLX90371GDC-BCC-300-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90371GDC-BCC-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 MLX90371GDC-BCC-300-RE?
For technical support, including MLX90371GDC-BCC-300-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90371GDC-BCC-300-RE requirements.
6.How does Aetrix verify that MLX90371GDC-BCC-300-RE is sourced from the original manufacturer or authorized distributors?
All MLX90371GDC-BCC-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 MLX90371GDC-BCC-300-RE meets industry standards.
7.What is the process for return or replacement of MLX90371GDC-BCC-300-RE?
All MLX90371GDC-BCC-300-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90371GDC-BCC-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 MLX90371GDC-BCC-300-RE part is unused and in its original packaging.
Return procedure for MLX90371GDC-BCC-300-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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