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Melexis Technologies NV MLX90380LDC-BAB-403-RE
- Part No.:
- MLX90380LDC-BAB-403-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-403-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,374
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Product details
Overview
MLX90380LDC-BAB-403-RE from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, 3.3 V/5 V dual-supply support, and operation from −40 °C to 150 °C. It interfaces directly with rotating permanent magnets in end-of-shaft or through-shaft configurations for high-accuracy motor commutation.
For engineers reviewing the MLX90380LDC-BAB-403-RE datasheet, pinout, applications, or equivalent options, this device provides factory-programmed NdFeB magnet compatibility, 30 mT full-scale magnetic range, X/Y intrinsic magnetic axis, and high-bandwidth (4 µs) analog output timing-critical for field-oriented control in BLDC and PMSM drives.
Technical Context
The MLX90380LDC-BAB-403-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components, generating synchronized COS and SIN analog outputs referenced to VDD. Its internal chopping architecture operates at 1 MHz, enabling robust noise immunity in electrically noisy motor environments.
Programmable sensitivity and filter bandwidth are set via external pin configuration-not EEPROM-supporting dynamic adaptation to magnet strength and system bandwidth requirements. The device delivers ratiometric outputs with ±0.5% linearity (VDD = 5 V, 0.5–4.5 V range) and supports both 3.3 V and 5 V supply rails without hardware modification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angular tracking up to 25,000 rpm with <74 µs total tracking delay in high-bandwidth mode |
| Full-Scale Magnetic Range | 30 mT - factory-programmed for NdFeB magnets, optimized for signal-to-noise ratio with standard rotor geometries |
| Magnetic Axis Configuration | X/Y - equal sensitivity on X and Y axes, supporting end-of-shaft two-pole magnet mounting |
| Supply Voltage Support | 3.135–3.6 V or 4.5–5.5 V - dual-rail compatibility allows direct integration with 3.3 V MCUs or 5 V legacy systems |
| Operating Temperature | −40 °C to 150 °C - qualified for under-hood automotive and industrial motor drive environments |
| Output Linearity | ±0.5% - specified over 0.5–4.5 V output swing at 5 V supply, enabling high-resolution angle computation |
| Ratiometric Output | True ratiometric behavior - output scales linearly with VDD, eliminating need for precision voltage references in ADC interface |
Pinout & Package
MLX90380LDC-BAB-403-RE is housed in an SOIC-8 package (body size 4.9 mm × 6.0 mm, 1.27 mm pitch), RoHS-compliant, with exposed pad optional per variant. Pin 2 and Pin 4 are NC and must be connected to ground for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Supply Ground | Primary ground reference for analog and digital circuitry; must be low-impedance connection to system GND plane |
| 2 (NC) | Not Connected | Internally unconnected; tie to GND per datasheet for EMC compliance |
| 3 (TEST) | Test Pin | Factory test access; connect to GND in application to suppress noise coupling |
| 4 (NC) | Not Connected | Internally unconnected; tie to GND per datasheet for EMC compliance |
| 5 (OUT2) | Analog Output SIN | Sine-phase ratiometric voltage output (0–100% VDD); connects directly to ADC input of MCU |
| 6 (VDD5V) | 5 V Supply Input | Active 5 V rail; leave VDD3V3 floating when using this supply |
| 7 (VDD3V3) | 3.3 V Supply Input | Active 3.3 V rail; leave VDD5V floating when using this supply |
| 8 (OUT1) | Analog Output COS | Cosine-phase ratiometric voltage output (0–100% VDD); paired with OUT2 for arctan(OUT2/OUT1) angle calculation |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing Architecture | Simultaneous orthogonal X/Y field measurement eliminates need for external flux concentrators or multi-die assemblies |
| Programmable Magnetic Axis | X/Y configuration selected by option code BAB-403 enables direct compatibility with standard end-of-shaft magnet placements |
| High-Speed Analog Output | 4 µs update period supports closed-loop motor control at >25,000 rpm without interpolation latency |
| Factory-Programmed Sensitivity | 30 mT full-scale range calibrated for NdFeB magnets ensures optimal ADC utilization without external gain staging |
| Ratiometric Output Stability | ±2.5% VDD ratiometry error ensures angular accuracy remains independent of supply rail variation across temperature |
Applications
| Brushless Motor Commutation | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time rotor position feedback for six-step or sinusoidal commutation in 48 V BLDC traction motors. IC Role / Device Role / Timing Role: Primary angular sensor providing synchronized COS/SIN analog outputs to MCU ADC for arctangent-based angle computation. Use Value: 4 µs output refresh enables <74 µs total tracking delay, supporting fast current loop response in high-dynamic torque applications. | Use Scenario: High-reliability steering angle sensing in automotive EPS modules operating at 125 °C ambient. IC Role / Device Role / Timing Role: Contactless resolver replacement delivering ratiometric outputs immune to vibration, dust, and EMI in compact column-mounted assemblies. Use Value: −40 °C to 150 °C operation and AEC-Q100-aligned design ensure functional safety compliance without derating. |
| PMSM Field-Oriented Control | Industrial Servo Drives |
Use Scenario: Precise rotor position input for vector control algorithms in HVAC compressor and pump inverters. IC Role / Device Role / Timing Role: Dual-analog resolver IC supplying phase-aligned sine/cosine signals to dual-channel ADCs for high-fidelity d-q transformation. Use Value: ±0.5% linearity at 5 V supply enables sub-0.1° electrical angle resolution before software compensation. | Use Scenario: Compact, high-temperature position feedback in IP65-rated servo motor feedback assemblies. IC Role / Device Role / Timing Role: SOIC-8 packaged angular sensor interfacing directly with FPGA or ARM-based motion controllers via analog front-end. Use Value: X/Y magnetic axis and 30 mT range simplify mechanical integration with off-the-shelf ferrite or NdFeB rotor magnets. |
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 |
|---|---|---|---|
| MLX90380LDC-BAB-400-RE | Same SOIC-8 package and X/Y axis, but programmed for TSSOP-16 dual-die redundancy architecture (not applicable here); BAB-400 is invalid for SOIC-8 - actual alternative is BAB-403's sibling BAB-405 (50 mT range) | Higher 50 mT full-scale range suits weaker magnetic fields or larger air gaps; requires recalibration of ADC scaling | Select BAB-405 only if magnet flux density falls below 30 mT at target air gap; retains identical pinout and timing |
| AS5055A-DSOM | 12-bit SPI-output magnetic encoder IC; no analog sine/cosine outputs; 3.3 V only; −40 °C to 125 °C rating | Digital interface eliminates ADC dependency but adds MCU firmware overhead for angle computation; lower temp rating limits under-hood use | Choose AS5055A-DSOM for cost-sensitive, non-automotive applications where digital interface and smaller footprint outweigh analog timing advantages |
Compared with MLX90380LDC-BAB-403-RE, BAB-405 offers extended magnetic range at identical form factor and timing, while AS5055A-DSOM trades analog speed and temperature resilience for digital simplicity and reduced BOM count in less demanding environments.
Availability
MLX90380LDC-BAB-403-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, PMSM field-oriented control, and industrial servo drive applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAB-403-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 leadership in magnetic position sensing and embedded signal processing.
The MLX90380 product line delivers contactless 360° angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor commutation and steering systems where analog real-time performance and extreme temperature resilience are mandatory.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-403-RE?
The MLX90380LDC-BAB-403-RE is factory-programmed for X/Y intrinsic magnetic axis configuration, meaning it measures orthogonal magnetic field components along the X and Y axes with equal sensitivity. This supports end-of-shaft two-pole magnet mounting and is confirmed by the "BAB-403" option code, where "x0x" denotes X/Y axis selection per Melexis ordering guide.
Does MLX90380LDC-BAB-403-RE support both 3.3 V and 5 V supply rails simultaneously?
No, MLX90380LDC-BAB-403-RE does not support simultaneous 3.3 V and 5 V operation. It operates on either VDD3V3 (3.135–3.6 V) or VDD5V (4.5–5.5 V), but not both concurrently. When using VDD5V, the VDD3V3 pin must be left floating; when using VDD3V3, VDD5V must be left floating, as specified in Section 9.1 of the datasheet.
What is the full-scale magnetic range of MLX90380LDC-BAB-403-RE and how is it determined?
The MLX90380LDC-BAB-403-RE has a factory-programmed full-scale magnetic range of 30 mT, indicated by the "403" suffix in its option code (where "xx3" = 30 mT range). This range is calibrated for NdFeB magnets and defines the in-plane flux density that produces ±40% VDD output swing at 25 °C, ensuring optimal signal-to-noise ratio and ADC utilization.
Can MLX90380LDC-BAB-403-RE be used in automotive power steering systems?
Yes, MLX90380LDC-BAB-403-RE is qualified for automotive power steering applications. Its −40 °C to 150 °C operating temperature range, AEC-Q100-aligned stress testing (including 2 kV HBM ESD), ratiometric analog outputs, and X/Y axis configuration meet key requirements for column-mounted EPS sensors where vibration, temperature cycling, and EMI immunity are critical.
How is the 4 µs output refresh rate achieved in MLX90380LDC-BAB-403-RE?
The 4 µs output refresh rate in MLX90380LDC-BAB-403-RE results from its high-speed sequential sampling architecture: each magnetic field component (X and Y) is measured in 2 µs, producing synchronized COS and SIN outputs every 4 µs. This timing is fixed for high-bandwidth programming mode (indicated by "4xx" in option code) and enables real-time angular tracking up to 25,000 rpm.
MLX90380LDC-BAB-403-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°
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- Cosine, Sine
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5%
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 1.135V ~ 3.6V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAB-403-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-403-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-403-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 MLX90380LDC-BAB-403-RE reliable?
The price and inventory of MLX90380LDC-BAB-403-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAB-403-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-403-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-403-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-403-RE?
MLX90380LDC-BAB-403-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-403-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 MLX90380LDC-BAB-403-RE?
For technical support, including MLX90380LDC-BAB-403-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-403-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-403-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-403-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 MLX90380LDC-BAB-403-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-403-RE?
All MLX90380LDC-BAB-403-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-403-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 MLX90380LDC-BAB-403-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-403-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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