Melexis Technologies NV MLX90316LDC-BDG-102-RE
- Part No.:
- MLX90316LDC-BDG-102-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90316LDC-BDG-102-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MLX90316LDC-BDG-102-RE from Melexis is an absolute rotary position sensor IC based on Triaxis® Hall technology, delivering 12-bit angular resolution and ±10-bit thermal accuracy over -40°C to +150°C. It supports programmable analog (ratiometric), PWM, or SPI serial output modes and features integrated magneto-concentrator (IMC) for robust airgap and off-axis tolerance in end-of-shaft magnet configurations.
For engineers reviewing the MLX90316LDC-BDG-102-RE datasheet, pinout, applications, or equivalent options, key selection considerations include its SPI75AGC firmware variant, SOIC-8 package, dual-die redundancy absence, and programmable transfer characteristic for throttle, steering, or pedal position sensing.
Technical Context
The MLX90316LDC-BDG-102-RE implements a monolithic Triaxis® sensing architecture with on-chip IMC, enabling contactless detection of the horizontal magnetic field component from an end-of-shaft dipole magnet. Its DSP processes raw sine/cosine signals (15-bit ADC in slow mode) to compute absolute angle up to 360° with programmable linearization and clamping.
This variant includes SPI75AGC firmware (per Option Code BDG-102), enabling automatic rough gain adjustment at startup and optimized AGC behavior for varying magnet strengths. It operates in SOIC-8 package with single-die configuration, supporting VDD = 4.5–5.5 V, 8.5–11 mA supply current, and 100–1000 Hz PWM frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Resolution | 12-bit (0.0879°/LSB theoretical), enabling fine-grained shaft position feedback |
| Thermal Accuracy | ±10-bit (±0.3° typical at TA = 25°C), ensuring stable output across automotive temperature range |
| Output Modes | Configurable ratiometric analog, PWM (100–1000 Hz), or 14-bit SPI serial protocol |
| Operating Temp | -40°C to +150°C (L-grade), qualified for under-hood automotive applications |
| Supply Voltage | 4.5–5.5 V, with POR at 2.7 V and reverse voltage protection to -10 V |
| Magnetic Range | 20–70 mT flux density, with IMC saturation above 70 mT increasing linearity error |
| Programmability | End-of-line calibration via PTC-04 through VDD/VSS/OUT pins; 40-bit ID for traceability |
Pinout & Package
MLX90316LDC-BDG-102-RE is housed in a RoHS-compliant SOIC-8 package (Package Code "DC"), with 1.27 mm pitch and standard JEDEC outline. Pin 1 is marked by a notch or dot; unused pins (Test 0, Test 1) must be tied to ground per EMC recommendations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main power supply input (4.5–5.5 V); powers internal regulator and logic |
| 2 | Test 0 | Factory test pin; must be connected to VSS for EMC compliance |
| 3 | Switch OUT | Programmable digital switch output (open-drain, 0.55–4.35 V swing) |
| 4 | Not Used / OUT2 | No connection in single-die SOIC-8; not available on MLX90316LDC-BDG-102-RE |
| 5 | OUT | Primary output: analog (ratiometric), PWM, or SPI MOSI/MISO depending on mode |
| 6 | Test 1 | Factory test pin; must be connected to VSS for EMC compliance |
| 7 | VDIG | Digital supply rail for output stage; decoupled internally from VDD |
| 8 | VSS | Ground reference for analog and digital sections; critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® IMC Sensing | Enables robust angular measurement despite mechanical airgap and off-axis tolerances without external magnets or shielding |
| SPI75AGC Firmware | Automatically adjusts rough gain at startup for consistent signal amplitude across magnet strength variations and aging |
| Programmable Transfer Curve | Full end-of-line calibration of offset, gain, clamping, deadzone, and linearity via PTC-04 using only VDD/VSS/OUT pins |
| 14-bit SPI Output | Delivers high-resolution angular data (0.022°/LSB) with CRC-protected frames and configurable timing for ECU integration |
| Dual-Diagnostic Architecture | Combines active diagnostics (VDD/VSS monitoring) and passive broken-track detection to meet ASIL-B functional safety requirements |
Applications
| Steering Wheel Position Sensor | Pedal Position Sensor |
|---|---|
Use Scenario: Mounted behind steering column to detect absolute rotation angle for EPS and ADAS torque overlay. IC Role / Device Role / Timing Role: Absolute angular position sensor providing real-time 360° shaft angle with <1 ms step response in fast mode. Use Value: Enables precise torque vectoring and lane-keeping assist via calibrated SPI output with ASIL-B diagnostic coverage. | Use Scenario: Integrated into accelerator or brake pedal assemblies to monitor driver input angle for engine/brake control. IC Role / Device Role / Timing Role: Contactless potentiometer replacement delivering ratiometric analog or PWM output synchronized to ECU sampling. Use Value: Eliminates mechanical wear and provides 12-bit resolution with programmable clamping to prevent over-travel errors. |
| Throttle Position Sensor | Ride Height Position Sensor |
Use Scenario: Installed on throttle body shaft to report butterfly valve angle to engine management system. IC Role / Device Role / Timing Role: High-accuracy absolute position sensor operating at 150°C ambient with thermal drift compensation. Use Value: Supports fail-safe limp-home operation using dual diagnostics and programmable deadzone for idle/closed-throttle detection. | Use Scenario: Mounted on suspension linkage to measure chassis-to-axle angular displacement for adaptive damping control. IC Role / Device Role / Timing Role: Robust rotary sensor tolerant to vibration, dust, and wide airgap variation due to IMC-enhanced field concentration. Use Value: Delivers stable 0.1° repeatability over lifetime without recalibration, reducing maintenance in commercial vehicle platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90316KDC-BDG-102-RE | Same SOIC-8 package and SPI75AGC firmware, but rated for -40°C to +125°C (K-grade) instead of L-grade | Suitable for non-under-hood locations where peak ambient is ≤125°C; lower thermal accuracy drift than L-grade at mid-range temps | Select when full 150°C operation is unnecessary and cost optimization is prioritized |
| MLX90365LGO-BCG-100-RE | Dual-die TSSOP-16 package with full hardware redundancy, ASIL-D ready, and extended 16-bit resolution | Required for safety-critical steering angle sensing (e.g., steer-by-wire); incompatible pinout and higher BOM cost | Choose only when ISO 26262 ASIL-D compliance and fault-tolerant architecture are mandatory |
Compared with MLX90316KDC-BDG-102-RE, the MLX90316LDC-BDG-102-RE offers superior high-temperature stability for under-hood use but slightly higher thermal offset drift; versus MLX90365LGO-BCG-100-RE, it lacks hardware redundancy and ASIL-D certification but delivers identical core functionality at lower cost and smaller footprint.
Availability
MLX90316LDC-BDG-102-RE is available at Aetrix Electronics and suitable for automotive throttle control, steering angle feedback, and industrial actuator position monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90316LDC-BDG-102-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 and industrial markets, with expertise in magnetic sensing, thermal imaging, and wireless charging.
The MLX90316 product line delivers contactless absolute rotary position sensing using Triaxis® technology, designed specifically for demanding automotive applications including EPS, throttle, and pedal systems where reliability and programmability are critical.
FAQ
What output modes does the MLX90316LDC-BDG-102-RE support?
The MLX90316LDC-BDG-102-RE supports three configurable output modes: ratiometric analog voltage (0–100% VDD), PWM (100–1000 Hz, programmable duty cycle), and 14-bit SPI serial protocol with CRC protection. Mode selection is programmed via PTC-04 during end-of-line calibration and stored in EEPROM. The MLX90316LDC-BDG-102-RE does not support dual-output or Switch Out2 functions, as those require the BCS variant or TSSOP-16 dual-die package.
How is the MLX90316LDC-BDG-102-RE calibrated for custom angular ranges?
Calibration is performed using Melexis' PTC-04 programming unit connected only to VDD, VSS, and OUT pins-no additional interface required. Users define angular range (up to 360°), linearity points, clamping levels, deadzone, and thermal compensation parameters. All settings are written to on-chip EEPROM and persist after power cycling. The MLX90316LDC-BDG-102-RE's SPI75AGC firmware further enables automatic gain adaptation during startup to maintain signal integrity across magnet aging and temperature shifts.
Does the MLX90316LDC-BDG-102-RE meet automotive functional safety requirements?
Yes-the MLX90316LDC-BDG-102-RE integrates dual diagnostic mechanisms: active monitoring of VDD/VSS supply rails and passive broken-track detection for open-circuit faults. These features support ASIL-B compliance per ISO 26262 when implemented with appropriate system-level diagnostics. The MLX90316LDC-BDG-102-RE does not provide hardware redundancy (unlike dual-die GO variants), so ASIL-D applications require additional system-level fault containment measures.
What is the significance of the "BDG-102" option code in MLX90316LDC-BDG-102-RE?
The "BDG-102" option code identifies the MLX90316LDC-BDG-102-RE as a SOIC-8 packaged device with SPI75AGC firmware, which configures automatic rough gain adjustment at power-on to compensate for magnet strength variation and aging. This differs from BDG-000 (standard firmware) and BDG-100 (basic SPI). The MLX90316LDC-BDG-102-RE uses this firmware to optimize signal-to-noise ratio without requiring manual gain tuning during calibration.
Can the MLX90316LDC-BDG-102-RE operate with a 3.3 V supply?
No-the MLX90316LDC-BDG-102-RE requires a nominal 5 V supply (4.5–5.5 V range) and is not specified for 3.3 V operation. Its internal 3.3 V regulator powers the digital core but is derived from VDD; applying 3.3 V to VDD will result in insufficient headroom for analog front-end biasing and output stage drive, causing degraded accuracy and potential failure to meet datasheet specifications. The MLX90316LDC-BDG-102-RE must be used with a stable 5 V rail compliant with its absolute maximum ratings.
MLX90316LDC-BDG-102-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:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- SPI
- Output Signal:
- -
- 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 ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90316LDC-BDG-102-RE FAQ
1.How can I place an order for MLX90316LDC-BDG-102-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90316LDC-BDG-102-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 MLX90316LDC-BDG-102-RE reliable?
The price and inventory of MLX90316LDC-BDG-102-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90316LDC-BDG-102-RE is usually 5 days.
3.What payment methods are accepted for MLX90316LDC-BDG-102-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90316LDC-BDG-102-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90316LDC-BDG-102-RE?
MLX90316LDC-BDG-102-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90316LDC-BDG-102-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 MLX90316LDC-BDG-102-RE?
For technical support, including MLX90316LDC-BDG-102-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90316LDC-BDG-102-RE requirements.
6.How does Aetrix verify that MLX90316LDC-BDG-102-RE is sourced from the original manufacturer or authorized distributors?
All MLX90316LDC-BDG-102-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 MLX90316LDC-BDG-102-RE meets industry standards.
7.What is the process for return or replacement of MLX90316LDC-BDG-102-RE?
All MLX90316LDC-BDG-102-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90316LDC-BDG-102-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 MLX90316LDC-BDG-102-RE part is unused and in its original packaging.
Return procedure for MLX90316LDC-BDG-102-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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