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Melexis Technologies NV MLX90380LDC-BAA-000-SP
- Part No.:
- MLX90380LDC-BAA-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAA-000-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,476
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Product details
Overview
MLX90380LDC-BAA-000-SP from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via dual ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, 3.3 V/5 V dual-supply support, -40°C to 150°C operating range, and X/Y magnetic axis configuration optimized for end-of-shaft rotary position measurement in BLDC motor control systems.
For engineers reviewing the MLX90380LDC-BAA-000-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package mapping, magnetic sensitivity calibration details, and validated alternatives for automotive-grade motor angle feedback design.
Technical Context
The MLX90380LDC-BAA-000-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components using on-die integrated Hall elements and signal conditioning circuitry. Its dual analog outputs deliver synchronized sine and cosine waveforms proportional to magnet rotation angle, with factory-programmed 40 mT full-scale range and SmCo magnet compatibility.
It supports high-bandwidth operation (4 µs update period), programmable filter bandwidth via external pins, and ratiometric output scaling referenced to VDD. The device operates across 3.135–3.6 V or 4.5–5.5 V supply rails, with internal power-on reset and EMC-optimized pin layout for industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, both referenced to VDD |
| Output Refresh Rate | 4 µs - enables real-time angle tracking up to 25,000 rpm with ≤12 µs total tracking delay |
| Full-Scale Magnetic Range | 40 mT - factory-programmed for SmCo magnets, supporting ±40%VDD output swing at TA = 25°C |
| Operating Supply | 3.135–3.6 V or 4.5–5.5 V - dual-rail support with VDD3V3 and VDD5V pins; only one rail powered per application |
| Temperature Range | -40°C to 150°C - qualified for under-hood automotive and industrial motor control environments |
| Magnetic Axis | X/Y configuration - equal sensitivity on X and Y axes, optimized for end-of-shaft two-pole magnet mounting |
| Total Angular Error | ±10° without correction, ±1° with dynamic ECU compensation - linearity error budget excludes mechanical/magnet system contributions |
Pinout & Package
MLX90380LDC-BAA-000-SP is housed in an 8-pin SOIC package (JEDEC MS-012AC) with 1.27 mm pitch, surface-mount footprint, and exposed pad not connected internally. Pin 2 and Pin 4 are NC and must be tied to GND for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry and analog outputs |
| 2 | NC | No connect - externally grounded to reduce EMI coupling |
| 3 | TEST | Factory test pin - grounded during normal operation for EMC compliance |
| 4 | NC | No connect - externally grounded to reduce EMI coupling |
| 5 | OUT2 | Analog SIN output - ratiometric voltage proportional to BY component of magnetic field |
| 6 | VDD5V | 5 V supply input - used exclusively when operating at 5 V; VDD3V3 must float |
| 7 | VDD3V3 | 3.3 V supply input - used exclusively when operating at 3.3 V; VDD5V must float |
| 8 | OUT1 | Analog COS output - ratiometric voltage proportional to BX component of magnetic field |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y field detection eliminates need for external flux concentrators or multi-sensor assemblies |
| Programmable Magnetic Axis | X/Y selection (BAA-xxx) ensures optimal signal-to-noise ratio for end-of-shaft configurations with radial-field magnets |
| Ratiometric Outputs | OUT1/OUT2 scale directly with VDD, removing dependency on stable reference voltage and simplifying ADC interface |
| 4 µs Output Update | Enables closed-loop FOC control at >20 kHz PWM frequencies without angle estimation latency penalties |
| SmCo Magnet Optimization | BAA-000 variant calibrated for SmCo magnets with 350 ppm/°C sensitivity temperature coefficient for thermal drift compensation |
Applications
| Brushless DC Motor Rotor Position | Permanent Magnet Synchronous Motor Control |
|---|---|
|
Use Scenario: Real-time rotor angle feedback for field-oriented control in traction inverters and servo drives. IC Role / Device Role / Timing Role: Resolver replacement providing analog sine/cosine signals to MCU ADC inputs for arctan-based angle computation. Use Value: Enables <1° electrical angle error at 150°C ambient, supporting ASIL-B functional safety requirements without external interpolation. |
Use Scenario: High-accuracy commutation timing in PMSM compressors and HVAC blowers operating at extended temperature ranges. IC Role / Device Role / Timing Role: Contactless angular sensor delivering synchronized 4 µs-update analog outputs for deterministic angle sampling in time-triggered control loops. Use Value: Eliminates slip rings and brushes while maintaining ±1° total angular error after dynamic ECU compensation, reducing maintenance and failure modes. |
| Electric Power Steering (EPS) Angle Sensing | Industrial Rotary Valve Position Monitoring |
|
Use Scenario: Redundant steering angle measurement in dual-motor EPS systems requiring fail-operational capability. IC Role / Device Role / Timing Role: Primary angle sensor with X/Y axis configuration enabling direct mounting on steering column end-of-shaft with minimal mechanical tolerance stack-up. Use Value: Supports ISO 26262 ASIL-C decomposition via dual-die TSSOP-16 variants; this SOIC-8 version serves as certified single-channel subsystem element. |
Use Scenario: Non-contact position monitoring of quarter-turn rotary valves in chemical process control and oil/gas actuation systems. IC Role / Device Role / Timing Role: Absolute 360° position transducer interfaced to PLC analog inputs via ratiometric voltage scaling, eliminating encoder communication overhead. Use Value: Withstands 150°C ambient and vibration per AEC-Q100 Grade 0, enabling direct valve-body mounting without heat sinking or remote sensing arms. |
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-000-SP | Uses NdFeB magnet instead of SmCo; higher sensitivity temperature coefficient (1100 ppm/°C vs. 350 ppm/°C) | Optimized for lower-cost NdFeB magnets in cost-sensitive industrial motors; reduced thermal stability margin at 150°C | Select when magnet cost dominates over thermal drift budget and system calibration supports wider offset drift compensation. |
| MLX90380LGO-BAA-000-SP | TSSOP-16 dual-die fully redundant architecture; separate VDD/GND per die; 1.5 kV CDM ESD rating vs. 2 kV HBM | Required for ASIL-D fault-tolerant designs where cross-die redundancy and independent power domains are mandated | Choose when functional safety architecture requires hardware-level redundancy and fault containment between sensing channels. |
Compared with MLX90380LDC-BAA-000-SP, the BAB-000 variant trades thermal stability for magnet cost savings, while the LGO-BAA-000-SP adds physical redundancy at the expense of PCB area and layout complexity-neither is pin-compatible, but all share identical signal processing architecture and programming interface.
Availability
MLX90380LDC-BAA-000-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial rotary valve position sensing requiring stable component supply across automotive production lifecycles and industrial equipment refresh cycles.
Supply support for MLX90380LDC-BAA-000-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 applications, with core expertise in magnetic sensing, thermal imaging, and RF solutions.
The MLX90380 product line delivers Triaxis®-based absolute angular position sensing for high-reliability motor control and safety-critical systems, designed specifically to replace resolvers and optical encoders in harsh-temperature, high-vibration environments.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAA-000-SP?
The MLX90380LDC-BAA-000-SP is factory-programmed for X/Y magnetic axis configuration, meaning it measures orthogonal magnetic field components BX and BY with equal sensitivity. This configuration is optimized for end-of-shaft mounting with radial-field permanent magnets and supports direct sine/cosine output generation without external signal conditioning. The BAA prefix in the part number explicitly denotes X/Y axis selection.
Can MLX90380LDC-BAA-000-SP operate from both 3.3 V and 5 V supplies simultaneously?
No, MLX90380LDC-BAA-000-SP must be powered from either the VDD3V3 pin or the VDD5V pin-not both. When using 3.3 V, the VDD5V pin must remain floating; when using 5 V, the VDD3V3 pin must float. This isolation prevents supply contention and ensures correct internal biasing. The device draws 5–10 mA depending on supply voltage and load conditions, as specified in the General Electrical Specifications table.
What is the full-scale magnetic range and sensitivity of MLX90380LDC-BAA-000-SP?
The MLX90380LDC-BAA-000-SP has a factory-programmed full-scale magnetic range of 40 mT and nominal sensitivity of 1 %VDD/mT (50 mV/mT at 5 V). This yields ±40%VDD output swing (i.e., 10%–90% VDD) at 25°C with zero magnetic offset. Sensitivity remains ratiometric to VDD, and temperature drift is compensated using a 350 ppm/°C coefficient calibrated for SmCo magnets.
How does the 4 µs output refresh rate translate to maximum rotational speed support?
With a 4 µs output update period, the MLX90380LDC-BAA-000-SP supports up to 25,000 rpm mechanical speed while maintaining ≤12 µs total tracking delay in high-bandwidth mode. At that speed, the device delivers >1.6 samples per electrical degree for a 2-pole motor, enabling precise field-oriented control without interpolation. The actual usable speed depends on magnet pole count and required angle resolution.
Is MLX90380LDC-BAA-000-SP pin-compatible with other MLX90380 variants in SOIC-8 package?
Yes, all MLX90380 variants in SOIC-8 package-including MLX90380LDC-BAB-000-SP and MLX90380LDC-BAC-000-SP-share identical pinout, footprint, and electrical interface. Differences are limited to factory-programmed parameters (magnet type, sensitivity range, magnetic axis, bandwidth), making them drop-in replacements for layout reuse across design iterations targeting different magnet materials or thermal profiles.
MLX90380LDC-BAA-000-SP 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°
- 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-BAA-000-SP FAQ
1.How can I place an order for MLX90380LDC-BAA-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-000-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 MLX90380LDC-BAA-000-SP reliable?
The price and inventory of MLX90380LDC-BAA-000-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAA-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAA-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAA-000-SP?
MLX90380LDC-BAA-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAA-000-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 MLX90380LDC-BAA-000-SP?
For technical support, including MLX90380LDC-BAA-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-000-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAA-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAA-000-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 MLX90380LDC-BAA-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAA-000-SP?
All MLX90380LDC-BAA-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-000-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 MLX90380LDC-BAA-000-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAA-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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