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Melexis Technologies NV MLX90333SDC-BCH-000-TU
- Part No.:
- MLX90333SDC-BCH-000-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Linear, Compass (ICs)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90333SDC-BCH-000-TU.pdf
- Description:
- SENSOR HALL ANALOG/PWM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,222
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Product details
Overview
MLX90333SDC-BCH-000-TU from Melexis is a Triaxis® 3D contactless position sensor IC in SOIC-8 package, delivering 12-bit angular resolution and 10-bit angular thermal accuracy. It measures BX, BY, and BZ magnetic field components using integrated magneto-concentrator (IMC) and Hall plates, supporting analog ratiometric, PWM, or serial protocol outputs for rotary, linear, or joystick-style position sensing in automotive and industrial controls.
For engineers reviewing the MLX90333SDC-BCH-000-TU datasheet, pinout, applications, or equivalent options, this page provides verified technical context, calibrated output behavior, SOIC-8 pin mapping, programmable transfer characteristics (Alpha/Beta), and real-world interface constraints for embedded position feedback systems.
Technical Context
The MLX90333SDC-BCH-000-TU integrates a 16-bit RISC microcontroller (5 MIPS @ 20 MHz), 128 B EEPROM, and dual-path signal processing: IMC-enhanced horizontal field sensing (BX/BY) and direct vertical Hall sensing (BZ). Its DSP computes angular position via CoRDiC-based rectangular-to-polar conversion with programmable dead zone, clamping, and LNR correction.
It supports three output modes-ratiometric analog (0–100% VDD), PWM (100–1000 Hz), or 3-wire SPI-with independent OUT1/OUT2 channels. The device operates across -40°C to +150°C (K-grade), features built-in diagnostics (broken VDD/VSS detection), and enables end-of-line calibration of offset, gain, linearity, and thermal drift via PTC-04 programmer on VDD-VSS-OUT pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Resolution | 12-bit analog/PWM; 16-bit serial - enables 0.005°/LSB angular precision in slow mode |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and high-temp industrial environments |
| Magnetic Range | BX/BY: 20–70 mT; BZ: 24–140 mT - supports common NdFeB magnets at air gaps up to 4 mm |
| Supply Voltage | 4.5–5.5 V - ratiometric output ensures immunity to supply ripple in noisy 5 V systems |
| Sampling Rate | 600–1000 μs (slow/fast mode) - balances latency vs. noise rejection for dynamic position tracking |
| Diagnostic Coverage | Built-in broken VDD/VSS detection, watchdog timer (5 ms), and EEPROM CRC - meets ASIL-B functional safety requirements |
| Programmability | End-of-line calibration of Alpha/Beta transfer curves, clamping levels, dead zones, and filter coefficients via VDD-VSS-OUT interface |
Pinout & Package
MLX90333SDC-BCH-000-TU uses RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm), optimized for surface-mount assembly and EMC robustness. Unused pins (Test 0, Test 1, Pin 3 Not Used) must be tied to ground per datasheet Section 16.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Main power supply input (4.5–5.5 V); powers internal 3.3 V regulator and analog/digital blocks |
| 2 | Test 0 | Factory test pin; must be grounded in application per datasheet recommendation |
| 3 | Not Used | No internal connection; requires grounding for EMC compliance |
| 4 | OUT2 | Secondary output: configurable as analog, PWM, or SPI SCLK (in serial mode) |
| 5 | OUT1 | Primary output: configurable as analog, PWM, or SPI MOSI/MISO (in serial mode) |
| 6 | Test 1 | Factory test pin; must be grounded in application per datasheet recommendation |
| 7 | VDIG | Digital supply reference; decoupling capacitor required between VDIG and VSS |
| 8 | VSS | Analog/digital ground return; low-impedance connection critical for ADC accuracy and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Sensing | Simultaneous BX/BY/BZ measurement enables true 3D joystick, linear stroke, and rotary position detection without mechanical linkage |
| Programmable Transfer Curve | Alpha/Beta parameters allow full customization of offset, gain, clamping, dead zone, and linearity to match mechanical travel and magnet geometry |
| Multi-Output Interface | Single die supports ratiometric analog, PWM, or 3-wire SPI - eliminates need for external ADC or protocol translation in cost-sensitive designs |
| On-Chip Diagnostics | Real-time broken VDD/VSS detection, watchdog timeout, and EEPROM integrity check reduce system-level fault monitoring overhead |
| End-of-Line Calibration | Calibration via VDD-VSS-OUT pins only - no dedicated programming interface needed; compatible with standard production handlers |
Applications
| Automotive Throttle Pedal | Industrial Joystick Control |
|---|---|
|
Use Scenario: Non-contact pedal angle measurement in drive-by-wire systems with redundant safety requirements. IC Role / Device Role / Timing Role: Primary position transducer converting magnet rotation into calibrated analog/PWM output with diagnostic flags. Use Value: Eliminates potentiometer wear and EMI susceptibility while meeting ASIL-B diagnostic coverage via built-in VDD/VSS fault detection. |
Use Scenario: 2-axis human-machine interface for crane control panels exposed to vibration and temperature extremes. IC Role / Device Role / Timing Role: Dual-output 3D position sensor providing independent X/Y analog signals for joystick X/Y axis decoding. Use Value: Enables compact, sealed enclosure design with no moving contacts; SOIC-8 footprint simplifies PCB layout and rework. |
| Linear Actuator Feedback | Rotary Knob Interface |
|
Use Scenario: Stroke position sensing in electric power steering (EPS) assist actuators requiring high reliability over 150°C ambient. IC Role / Device Role / Timing Role: Linear position transducer measuring magnet displacement parallel to IC surface with thermal drift compensation. Use Value: 10-bit angular thermal accuracy ensures <±0.3° error over full temperature range without external temperature sensor or lookup tables. |
Use Scenario: Contactless rotary encoder replacement in HVAC control knobs subject to dust, moisture, and mechanical wear. IC Role / Device Role / Timing Role: Rotary position sensor interpreting through-shaft magnet rotation as continuous 0–360° analog output. Use Value: Programmable Alpha transfer curve allows exact matching to knob mechanical rotation profile and user tactile response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3D magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90363KGO-ABB-000-RE | TSSOP-16 dual-die package with full hardware redundancy; higher current draw (2× IDD); isolated inter-die resistance >4 MΩ | Required for ASIL-D systems needing physical separation of redundant channels; not pin-compatible with SOIC-8 | Select when functional safety mandates hardware redundancy beyond diagnostic coverage of MLX90333SDC-BCH-000-TU |
| AS5055A-DSOM | 14-bit resolution; SPI-only interface; no analog/PWM outputs; smaller QFN-16 package; lower max temp (125°C) | Suited for space-constrained PCBs where digital-only interface suffices and thermal range is ≤125°C | Choose if serial-only output and smaller footprint outweigh need for analog/PWM flexibility and extended temperature operation |
Compared with MLX90333SDC-BCH-000-TU, MLX90363KGO-ABB-000-RE adds physical channel isolation but increases board area and power; AS5055A-DSOM reduces size and cost but sacrifices analog/PWM versatility and high-temp capability.
Availability
MLX90333SDC-BCH-000-TU is available at Aetrix Electronics and suitable for automotive throttle systems, industrial joysticks, linear actuator feedback, and rotary knob interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90333SDC-BCH-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 and industrial markets, with core expertise in magnetic sensing, infrared, and ultrasonic technologies.
The MLX90333 product line delivers contactless 3D position sensing for safety-critical and high-reliability applications, emphasizing programmability, thermal stability, and multi-interface flexibility in compact packages.
FAQ
What output modes does the MLX90333SDC-BCH-000-TU support?
The MLX90333SDC-BCH-000-TU supports three configurable output modes: ratiometric analog (0–100% VDD), PWM (100–1000 Hz), and 3-wire SPI. In analog or PWM mode, OUT1 and OUT2 deliver independent position signals; in SPI mode, they function as MOSI/MISO and SCLK. All modes are selected and calibrated via the VDD-VSS-OUT interface using Melexis PTC-04.
How is the MLX90333SDC-BCH-000-TU calibrated for specific mechanical setups?
The MLX90333SDC-BCH-000-TU is calibrated end-of-line using the Melexis PTC-04 programmer connected only to VDD, VSS, and OUT pins. Calibration adjusts Alpha/Beta transfer curves-including offset, gain, clamping, dead zone, and linearity-to match magnet geometry, air gap, and mechanical travel. Parameters are stored in 128 B EEPROM and persist across power cycles.
Does the MLX90333SDC-BCH-000-TU meet automotive qualification standards?
Yes, the MLX90333SDC-BCH-000-TU is qualified to AEC-Q100 Grade 0 (−40°C to +150°C), supports ASIL-B functional safety requirements via built-in diagnostics (broken VDD/VSS detection, watchdog, EEPROM CRC), and features robust EMC design with recommended grounding of unused pins. Its SOIC-8 package is validated for lead-free reflow per J-STD-020.
What is the role of the Integrated Magneto-Concentrator (IMC) in the MLX90333SDC-BCH-000-TU?
The IMC in the MLX90333SDC-BCH-000-TU enhances sensitivity to horizontal magnetic fields (BX/BY) by concentrating flux onto on-chip Hall plates, enabling accurate 2D position sensing without external flux concentrators. It provides typical gain of 1.2–1.8× for BX/BY, while BZ is sensed directly via conventional Hall plate-enabling true 3D vector measurement in a single die.
Can the MLX90333SDC-BCH-000-TU operate with a 3.3 V supply?
No, the MLX90333SDC-BCH-000-TU requires a nominal 5 V supply (4.5–5.5 V range) as specified in its absolute maximum and electrical specifications. Its internal 3.3 V regulator powers digital blocks but is not an input; applying 3.3 V to VDD will result in undervoltage lockout and non-functional operation. System-level 5 V rail conditioning is required.
MLX90333SDC-BCH-000-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Series:
- Triaxis®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- Technology:
- Hall Effect
- Axis:
- X, Y, Z
- Output Type:
- Analog, PWM
- Sensing Range:
- 20mT ~ 70mT (X,Y), 24mT ~ 140mT (Z)
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Supply (Max):
- 16mA
- Current - Output (Max):
- 30mA
- Resolution:
- 12 b
- Bandwidth:
- -
- Operating Temperature:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Features:
- Programmable
- Supplier Device Package:
- 8-SOIC
- Mounting Type:
- Surface Mount
MLX90333SDC-BCH-000-TU FAQ
1.How can I place an order for MLX90333SDC-BCH-000-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90333SDC-BCH-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 MLX90333SDC-BCH-000-TU reliable?
The price and inventory of MLX90333SDC-BCH-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 MLX90333SDC-BCH-000-TU is usually 5 days.
3.What payment methods are accepted for MLX90333SDC-BCH-000-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90333SDC-BCH-000-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90333SDC-BCH-000-TU?
MLX90333SDC-BCH-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90333SDC-BCH-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 MLX90333SDC-BCH-000-TU?
For technical support, including MLX90333SDC-BCH-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90333SDC-BCH-000-TU requirements.
6.How does Aetrix verify that MLX90333SDC-BCH-000-TU is sourced from the original manufacturer or authorized distributors?
All MLX90333SDC-BCH-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 MLX90333SDC-BCH-000-TU meets industry standards.
7.What is the process for return or replacement of MLX90333SDC-BCH-000-TU?
All MLX90333SDC-BCH-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90333SDC-BCH-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 MLX90333SDC-BCH-000-TU part is unused and in its original packaging.
Return procedure for MLX90333SDC-BCH-000-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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