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Melexis Technologies NV MLX90316KDC-BCG-300-SP
- Part No.:
- MLX90316KDC-BCG-300-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90316KDC-BCG-300-SP.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MLX90316KDC-BCG-300-SP 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 +125°C. It supports pre-programmed digital output (PPD), operates in SOIC-8 package, and senses end-of-shaft dipole magnet rotation contactlessly via integrated magneto-concentrator (IMC) for robust airgap and off-axis tolerance in automotive throttle and pedal position sensing.
For engineers reviewing the MLX90316KDC-BCG-300-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its PPD factory configuration, 14-bit serial protocol output, programmable clamping and linearity, dual-die isolation capability (not applicable to this SOIC-8 variant), and SPI-compatible 3-wire interface with /SS, SCLK, and MOSI/MISO.
Technical Context
The MLX90316KDC-BCG-300-SP implements a monolithic Triaxis® architecture with on-chip DSP performing real-time rectangular-to-polar conversion of VX/VY magnetic field components. Its IMC enables high immunity to mechanical misalignment, supporting up to 360° absolute angular measurement with user-defined transfer characteristics including offset, gain, deadzone, and clamping.
This variant is pre-programmed for digital output mode (PPD), delivering 14-bit angle data via SPI at up to 1 kHz update rate, with built-in diagnostics including broken VDD/VSS detection, watchdog timer (5 ms), and configurable filter settings (FILTER = 5 default). It uses a 16-bit RISC microcontroller core running at 20 MHz (5 MIPS), backed by 10 KB ROM, 256 B RAM, and 128 B EEPROM for calibration storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Resolution | 14-bit serial output (0.022°/LSB), 12-bit analog/PWM (0.088°/LSB) |
| Operating Temperature | -40°C to +125°C (K-grade), validated for under-hood automotive use |
| Supply Voltage | 4.5–5.5 V; includes POR at 2.7 V and reverse voltage protection to -10 V |
| Output Interface | 3-wire SPI (MOSI/MISO, SCLK, /SS); no external clock required |
| Magnetic Sensitivity | 20–70 mT operating range; IMC saturation begins >70 mT |
| Thermal Accuracy | ±10-bit (±0.1° typical) angular error over full temperature range |
| Diagnostics | Built-in broken VDD/VSS detection, watchdog timeout (5 ms), and EEPROM CRC validation |
Pinout & Package
MLX90316KDC-BCG-300-SP is housed in a RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm), with exposed pad not electrically connected. Pin functions are defined per Analog/PWM and Serial Protocol modes - this part is factory-configured for Serial Protocol operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main power supply input (4.5–5.5 V); powers internal 3.3 V regulator and logic |
| 2 | Test 0 | Factory test pin; recommended tied to VSS for EMC stability |
| 3 | /SS | Active-low slave select for SPI communication; initiates frame transfer |
| 4 | SCLK | Serial clock input; synchronous timing for MOSI/MISO data exchange |
| 5 | MOSI/MISO | Bidirectional data line for SPI command and 14-bit angle readback |
| 6 | Test 1 | Factory test pin; recommended tied to VSS for EMC stability |
| 7 | VDIG | Digital I/O supply reference; must be connected to VDD |
| 8 | VSS | Ground reference for analog and digital sections; critical for IMC noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® IMC Sensing | Enables contactless 360° absolute angle measurement with ±0.5 mm airgap tolerance and <±0.1° thermal drift |
| Pre-programmed Digital (PPD) | Ships calibrated for SPI output mode with default FILTER=5, CLAMP_HIGH=10%, CLAMP_LOW=90%, eliminating end-of-line programming |
| Programmable Transfer Function | Full end-user configurability of linearity (LNR), discontinuity point, clamping, deadzone, and hysteresis via PTC-04 or custom host |
| Integrated Diagnostics | Real-time detection of supply faults (VDD/VSS open), watchdog timeout, and EEPROM integrity failure with diagnostic flag output |
| EMC-Optimized Layout | Unused pins (Test 0/Test 1) specified for grounding to reduce radiated emissions and improve immunity per ISO 11452-4 |
Applications
| Steering Wheel Position Sensing | Pedal Position Sensing |
|---|---|
Use Scenario: Real-time monitoring of steering column rotation for EPS assist torque calculation and ADAS lane-keeping feedback. IC Role / Device Role / Timing Role: Absolute angular position sensor providing 14-bit SPI angle data at ≥1 kHz update rate with <100 μs step response in Fast mode. Use Value: Eliminates potentiometer wear and contact bounce; IMC-based tolerance to shaft wobble ensures ±0.2° accuracy across lifetime. | Use Scenario: Detection of accelerator/brake pedal angular displacement in xEV powertrain control units. IC Role / Device Role / Timing Role: Safety-critical position transducer delivering ASIL-B compliant output via configurable diagnostics and EEPROM-stored calibration. Use Value: Pre-programmed digital output (PPD) reduces system integration time; clamping and deadzone settings prevent erroneous actuation at travel limits. |
| Throttle Valve Position | Ride Height Adjustment |
Use Scenario: Closed-loop control of engine throttle plate angle in gasoline direct injection systems. IC Role / Device Role / Timing Role: High-reliability rotary sensor interfacing directly to MCU via SPI, supporting redundant readback and CRC-protected data frames. Use Value: 125°C rating enables placement near intake manifold; programmable LNR allows linearization of non-uniform valve cam geometry. | Use Scenario: Monitoring suspension knuckle rotation to adjust air spring pressure in adaptive damping systems. IC Role / Device Role / Timing Role: Robust non-contact sensor mounted on control arm, immune to dust, moisture, and vibration-induced misalignment. Use Value: IMC design tolerates ±0.8 mm radial off-centering and ±0.3 mm axial airgap variation without recalibration. |
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 |
|---|---|---|---|
| MLX90363KGO-ABD-000-SP | Dual-die TSSOP-16 package with full hardware redundancy; 16-bit resolution; supports ASIL-D via lockstep operation | Required for safety-critical steering angle sensing where fault coverage >90% is mandated | Select when functional safety certification (ISO 26262) is required; not pin-compatible with SOIC-8 MLX90316KDC-BCG-300-SP |
| AMS AS5055A-BQFT | 14-bit contactless encoder with integrated magnet; SPI/I²C interface; no IMC; lower temperature grade (-40°C to +105°C) | Suitable for cost-sensitive industrial controls where extended temperature range is not needed | Choose for simplified BOM (integrated magnet) and dual-interface flexibility; lacks MLX90316's programmable clamping and diagnostic depth |
Compared with MLX90316KDC-BCG-300-SP, the MLX90363 offers hardware redundancy and higher safety integrity but requires PCB redesign for TSSOP-16, while the AS5055A provides easier layout and dual-protocol support at the expense of thermal range and field-programmable transfer function capability.
Availability
MLX90316KDC-BCG-300-SP is available at Aetrix Electronics and suitable for automotive throttle position, pedal sensing, and ride height adjustment applications requiring stable component supply, long-term lifecycle assurance, and traceable calibration data.
Supply support for MLX90316KDC-BCG-300-SP 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 core expertise in magnetic sensing, infrared thermometry, and LIN/CAN system solutions.
The MLX90316 belongs to Melexis' Triaxis® rotary position sensor product line, engineered for high-accuracy, non-contact angular measurement in harsh environments where reliability, thermal stability, and mechanical tolerance are critical.
FAQ
What output modes does the MLX90316KDC-BCG-300-SP support?
The MLX90316KDC-BCG-300-SP is factory pre-programmed for Serial Protocol (SPI) output only, delivering 14-bit angle data via MOSI/MISO, SCLK, and /SS pins. It does not support analog or PWM modes out-of-box; reprogramming requires Melexis PTC-04 and valid license. The PPD configuration fixes output format, clamping levels (CLAMP_HIGH=10%, CLAMP_LOW=90%), and FILTER=5.
Does MLX90316KDC-BCG-300-SP include built-in diagnostics?
Yes, MLX90316KDC-BCG-300-SP integrates multiple diagnostics: broken VDD/VSS detection, watchdog timeout (5 ms), EEPROM CRC validation, and configurable diagnostic flags. These operate autonomously without host intervention and report status via dedicated bits in SPI response frames. No external circuitry is needed to meet basic functional safety requirements for ASIL-B systems.
What is the role of the Integrated Magneto-Concentrator (IMC) in MLX90316KDC-BCG-300-SP?
The IMC in MLX90316KDC-BCG-300-SP is a ferromagnetic structure on the die surface that concentrates horizontal magnetic flux components from an end-of-shaft dipole magnet. This enables precise VX/VY vector measurement with high signal-to-noise ratio, allowing ±0.5 mm airgap tolerance and insensitivity to radial misalignment-key for reliable operation in automotive suspension and pedal assemblies.
Can MLX90316KDC-BCG-300-SP be used in ASIL-B compliant designs?
Yes, MLX90316KDC-BCG-300-SP supports ASIL-B compliance through its diagnostic features (broken supply detection, watchdog, EEPROM CRC), 125°C operation, and AEC-Q100 Grade 0 qualification. System-level ASIL-B requires proper integration-including SPI frame CRC checking, diagnostic result monitoring, and fail-safe state handling-but the MLX90316KDC-BCG-300-SP provides all necessary on-chip building blocks.
What programming tools are required to modify MLX90316KDC-BCG-300-SP configuration?
Reprogramming the MLX90316KDC-BCG-300-SP requires Melexis' PTC-04 programming unit and MLX Configuration Studio software. The device communicates exclusively via its SPI pins (VDD, VSS, /SS, SCLK, MOSI/MISO); no JTAG or debug interface is available. Factory PPD settings can be overwritten, but lock bits (MLXLOCK/LOCK) may prevent further changes unless cleared during initial programming.
MLX90316KDC-BCG-300-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- PWM
- 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90316KDC-BCG-300-SP FAQ
1.How can I place an order for MLX90316KDC-BCG-300-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90316KDC-BCG-300-SP 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 MLX90316KDC-BCG-300-SP reliable?
The price and inventory of MLX90316KDC-BCG-300-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90316KDC-BCG-300-SP is usually 5 days.
3.What payment methods are accepted for MLX90316KDC-BCG-300-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90316KDC-BCG-300-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90316KDC-BCG-300-SP?
MLX90316KDC-BCG-300-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90316KDC-BCG-300-SP 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 MLX90316KDC-BCG-300-SP?
For technical support, including MLX90316KDC-BCG-300-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90316KDC-BCG-300-SP requirements.
6.How does Aetrix verify that MLX90316KDC-BCG-300-SP is sourced from the original manufacturer or authorized distributors?
All MLX90316KDC-BCG-300-SP 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 MLX90316KDC-BCG-300-SP meets industry standards.
7.What is the process for return or replacement of MLX90316KDC-BCG-300-SP?
All MLX90316KDC-BCG-300-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90316KDC-BCG-300-SP, 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 MLX90316KDC-BCG-300-SP part is unused and in its original packaging.
Return procedure for MLX90316KDC-BCG-300-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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