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Melexis Technologies NV MLX90316KDC-BCG-000-TU
- Part No.:
- MLX90316KDC-BCG-000-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90316KDC-BCG-000-TU.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MLX90316KDC-BCG-000-TU from Melexis is an absolute rotary position sensor IC based on Triaxis® Hall technology, delivering 12-bit angular resolution and ±1° thermal accuracy over -40°C to +125°C. It supports ratiometric analog, PWM, or serial (SPI) output modes and features programmable transfer characteristics for end-of-line calibration in steering wheel, throttle, and pedal position sensing applications.
For engineers reviewing the MLX90316KDC-BCG-000-TU datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (SOIC-8), confirmed pin functions, calibrated accuracy specs, magnetic field tolerance (±700 mT), and real-world diagnostic and filtering capabilities per Melexis Revision 011 datasheet.
Technical Context
The MLX90316KDC-BCG-000-TU integrates a monolithic Triaxis® sensor with on-chip IMC (Integrated Magneto-Concentrator) to detect horizontal magnetic flux components from an end-of-shaft dipole magnet. Its DSP performs real-time rectangular-to-polar conversion using CoRDiC algorithms, enabling robust angular measurement across mechanical airgap and off-axis tolerances.
It features dual operating modes (Slow/Fast), configurable digital filters (FIR/IIR), programmable clamping and deadzone, and self-diagnostic functions including broken VDD/VSS detection. Output is selectable between 12-bit analog (ratiometric), 12-bit PWM (100–1000 Hz), or 14-bit SPI serial data - all derived from the same core angular calculation engine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Angular Resolution | 12-bit (0.088°/LSB theoretical), noise-free DAC output for high-fidelity position feedback |
| Thermal Accuracy | ±1° over full -40°C to +125°C range, combining ±60 LSB ADC offset drift and ±0.3%VDD DAC/output stage drift |
| Magnetic Range | ±700 mT maximum flux density; linear operation up to ±70 mT before IMC saturation increases linearity error |
| Output Modes | Ratiometric analog (0–100% VDD), PWM (100–1000 Hz), or 14-bit SPI serial (360° mapped) |
| Supply & Current | 4.5–5.5 V nominal; 8.5–16 mA supply current depending on Slow/Fast mode and die count |
| Diagnostics | Built-in broken VDD/VSS detection, watchdog timer (5 ms), and configurable filter-based fault reporting |
| Programmability | 40-bit ID, full transfer curve (offset/gain/clamp/linearity), filter coefficients, and output polarity via PTC-04 unit |
Pinout & Package
MLX90316KDC-BCG-000-TU uses the SOIC-8 RoHS-compliant package with integrated IMC positioned above pins 5–6 per Melexis datasheet Figure 19.3. Pin functions are validated for standard analog/PWM operation (non-SPI variant).
| 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; recommended to connect to ground for EMC compliance |
| 3 | Switch OUT | Programmable digital switch output (0.55–4.35 V swing) for limit or status signaling |
| 4 | Not Used / OUT2 | No connection in BCG-000 variant; reserved for dual-output versions only |
| 5 | OUT | Main analog or PWM output (ratiometric 0–100% VDD or 100–1000 Hz PWM) |
| 6 | Test 1 | Factory test pin; recommended to connect to ground for EMC compliance |
| 7 | VDIG | Digital supply rail for internal logic and EEPROM; internally regulated from VDD |
| 8 | VSS | Analog/digital ground reference; must be low-impedance return path for accurate sensing |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® IMC Sensing | Enables contactless, robust angular measurement insensitive to airgap and off-axis misalignment |
| End-of-Line Programmability | Full transfer characteristic (offset, gain, clamping, linearity, filtering) calibrated via VDD/VSS/OUT terminals only |
| Multi-Mode Output | Single device supports analog, PWM, or SPI outputs - no hardware change required for system-level interface adaptation |
| Self-Diagnostic Engine | Detects broken VDD/VSS, watchdog timeout, and magnetic saturation without external circuitry |
| Configurable Filtering | 16-level digital filter (FIR/IIR) with programmable coefficients to suppress mechanical vibration or EMI-induced noise |
Applications
| Steering Wheel Position Sensing | Throttle Position Sensing |
|---|---|
Use Scenario: Real-time angular monitoring of vehicle steering column rotation under vibration, temperature cycling, and EMI exposure. IC Role / Device Role / Timing Role: Absolute position transducer providing primary feedback to EPS (Electric Power Steering) controller with <1 ms step response in Fast mode. Use Value: Eliminates potentiometer wear and contact bounce; maintains ±1° accuracy across -40°C to +125°C with no recalibration needed. | Use Scenario: Closed-loop control of engine air intake via electronic throttle body in gasoline and hybrid powertrains. IC Role / Device Role / Timing Role: Primary angular sensor feeding throttle actuator PID loop with ratiometric analog output synchronized to engine control unit sampling. Use Value: Enables fail-safe dual-signal redundancy when paired with second MLX90316; meets ASIL-B functional safety requirements via diagnostics. |
| Pedal Position Sensing | Motor-Shaft Position Sensing |
Use Scenario: Detection of accelerator/brake pedal angle in brake-by-wire and drive-by-wire systems with high EMC immunity. IC Role / Device Role / Timing Role: Safety-critical position input to vehicle dynamics controller; configured with clamped output and hysteresis for noise rejection. Use Value: Provides 12-bit resolution and programmable deadzone to reject pedal idle vibration while preserving full 0–100% travel fidelity. | Use Scenario: Commutation feedback for BLDC motors in industrial pumps, HVAC blowers, and electric power tools. IC Role / Device Role / Timing Role: Rotor position encoder replacing optical or resolver solutions; outputs PWM signal directly compatible with motor gate drivers. Use Value: Delivers 100–1000 Hz PWM with <0.2% jitter for precise timing control; operates reliably at 150°C junction temperature in compact SOIC-8 footprint. |
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-TU | Dual-die TSSOP-16 package with full hardware redundancy; higher current draw (2× IDD); includes isolated diagnostics | Required for ASIL-D automotive safety-critical systems where single-point failure must be eliminated | Select when functional safety certification (ISO 26262) mandates dual-die architecture and independent fault paths |
| AS5055A-DSOM | 14-bit resolution, SPI-only interface, no analog/PWM output; lower max temp (125°C); no built-in IMC | Suitable for space-constrained PCBs needing highest resolution but accepting external magnet design complexity | Choose when system already uses SPI infrastructure and prioritizes resolution over multi-interface flexibility or mechanical robustness |
Compared with MLX90316KDC-BCG-000-TU, the MLX90363 offers certified redundancy at cost of size and power, while the AS5055A trades interface versatility and IMC-based tolerance for higher raw resolution and smaller footprint - neither is pin-compatible, and all require layout and firmware adaptation.
Availability
MLX90316KDC-BCG-000-TU is available at Aetrix Electronics and suitable for automotive steering, throttle, and pedal position sensing requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified performance.
Supply support for MLX90316KDC-BCG-000-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 driver ICs for automotive, industrial, and consumer markets, with core expertise in magnetic sensing and mixed-signal ASIC design.
The MLX90316 belongs to Melexis' Triaxis® rotary position sensor product line, engineered for contactless, high-accuracy angular measurement in harsh environments where mechanical wear, temperature extremes, and EMI would degrade traditional potentiometers or resolvers.
FAQ
What output modes does the MLX90316KDC-BCG-000-TU support?
The MLX90316KDC-BCG-000-TU supports three configurable output modes: ratiometric analog voltage (0–100% VDD), PWM (100–1000 Hz), and 14-bit SPI serial data. Mode selection is programmed via the PTC-04 unit and stored in EEPROM; no hardware changes are needed to switch between them. The BCG-000 variant defaults to analog/PWM operation and does not include SPI pins in its SOIC-8 configuration.
Does the MLX90316KDC-BCG-000-TU require an external magnet, and what type is recommended?
Yes, the MLX90316KDC-BCG-000-TU requires an external diametrically magnetized dipole magnet mounted on the rotating shaft (end-of-shaft configuration). Melexis specifies optimal operation with magnets delivering 20–70 mT flux density at the sensor surface; neodymium (NdFeB) magnets with Br ≥ 1.2 T and temperature coefficient ≤ –2400 ppm/°C are recommended. The integrated IMC enables robust performance even with ±0.5 mm airgap variation.
What is the operating temperature range of the MLX90316KDC-BCG-000-TU, and how is thermal accuracy maintained?
The MLX90316KDC-BCG-000-TU operates from –40°C to +125°C (K-grade). Thermal accuracy is maintained through two compensated stages: DSP input offset drift (±60 LSB15 = ±0.3°) and DAC/output stage drift (±0.3%VDD). Combined, this yields ±1° total angular error across the full range. The device also supports programmable thermal compensation parameters (e.g., LNR_A_Y, CLAMP_HIGH) during end-of-line calibration.
Can the MLX90316KDC-BCG-000-TU be used in safety-critical automotive applications?
Yes - the MLX90316KDC-BCG-000-TU is AEC-Q100 qualified and includes multiple safety mechanisms: broken VDD/VSS detection, watchdog timer, configurable diagnostic outputs, and EEPROM CRC protection. While it meets ASIL-B requirements in single-die configuration, ASIL-D systems require the dual-die MLX90363KGO-ABD-000-TU. Functional safety documentation (FMEDA, safety manual) is available from Melexis for MLX90316KDC-BCG-000-TU.
How is the MLX90316KDC-BCG-000-TU calibrated, and what equipment is needed?
The MLX90316KDC-BCG-000-TU is calibrated end-of-line using Melexis' PTC-04 programming unit, which communicates exclusively through the VDD, VSS, and OUT pins - no additional interface lines required. Calibration configures angular range, transfer curve (offset/gain/clamp), filtering, and diagnostics. Factory-default settings are stored in 128 B EEPROM; user-programmed values persist through power cycles and meet >100k write/erase endurance spec.
MLX90316KDC-BCG-000-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage
- 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-000-TU FAQ
1.How can I place an order for MLX90316KDC-BCG-000-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90316KDC-BCG-000-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 MLX90316KDC-BCG-000-TU reliable?
The price and inventory of MLX90316KDC-BCG-000-TU 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-000-TU is usually 5 days.
3.What payment methods are accepted for MLX90316KDC-BCG-000-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90316KDC-BCG-000-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90316KDC-BCG-000-TU?
MLX90316KDC-BCG-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90316KDC-BCG-000-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 MLX90316KDC-BCG-000-TU?
For technical support, including MLX90316KDC-BCG-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90316KDC-BCG-000-TU requirements.
6.How does Aetrix verify that MLX90316KDC-BCG-000-TU is sourced from the original manufacturer or authorized distributors?
All MLX90316KDC-BCG-000-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 MLX90316KDC-BCG-000-TU meets industry standards.
7.What is the process for return or replacement of MLX90316KDC-BCG-000-TU?
All MLX90316KDC-BCG-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90316KDC-BCG-000-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 MLX90316KDC-BCG-000-TU part is unused and in its original packaging.
Return procedure for MLX90316KDC-BCG-000-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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