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Melexis Technologies NV MLX90380LDC-BAA-500-SP
- Part No.:
- MLX90380LDC-BAA-500-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAA-500-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,314
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Product details
Overview
MLX90380LDC-BAA-500-SP 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-BAA-500-SP datasheet, pinout, applications, or equivalent options, this device serves as a precision magnetic angular sensor optimized for field-oriented control (FOC) in automotive and industrial BLDC/PMSM motors where thermal robustness, analog output fidelity, and programmable magnetic axis selection are critical.
Technical Context
The MLX90380LDC-BAA-500-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) and parallel (Z) magnetic field components on a single die. Its internal architecture includes dual high-speed analog signal chains with independent sample-and-hold filtering, enabling synchronized sine/cosine output generation at up to 250 kSPS.
This SOIC-8 variant uses BAA option coding: SmCo magnet compatibility, X/Y magnetic axis configuration, 50 mT full-scale magnetic range, 3.3 V supply voltage, and high-bandwidth programming mode-yielding 12 µs tracking delay and 125 kHz Nyquist frequency for dynamic rotor position capture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular sampling at up to 250 kSPS for high-RPM motor control. |
| Operating Supply | 3.3 V only (VDD3V3 active; VDD5V floating) - Matches low-voltage MCU ADC reference rails without level shifting. |
| Full-Scale Magnetic Range | 50 mT - Optimized for SmCo magnets in end-of-shaft configurations with ±40% VDD output swing. |
| Magnetic Axis | X/Y - Delivers OUT1 = COS(X), OUT2 = SIN(Y) for standard ATAN-based angle computation. |
| Tracking Delay | 12 µs - Minimizes phase lag between mechanical rotation and analog output update under high-bandwidth mode. |
| Temperature Range | −40 °C to 150 °C - Supports under-hood automotive and industrial motor drive environments without derating. |
| Linearity Error | ±0.5% - Achieved within 0.5 V–4.5 V output range at 5 V supply, ensuring <1° angular error before correction. |
Pinout & Package
MLX90380LDC-BAA-500-SP is housed in an RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm, 1.75 mm height) with gull-wing leads, rated for reflow soldering per JEDEC J-STD-020.
| 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 | No internal connection; recommended to tie to VSS for EMC integrity per datasheet guidance. |
| 3 - TEST | Test Pin | Factory test access; tie to VSS for optimal EMC performance in production systems. |
| 4 - NC | Not Connected | No internal connection; recommended to tie to VSS for EMC integrity. |
| 5 - OUT2 | Analog Output SIN | Ratiometric sine output referenced to VDD3V3; delivers 50% VDD offset ±40% VDD swing over 360° rotation. |
| 6 - VDD5V | 5 V Supply Input | Must remain floating when operating at 3.3 V; incorrect bias causes functional failure. |
| 7 - VDD3V3 | 3.3 V Supply Input | Active power rail for this variant; supplies all internal circuitry and defines output voltage scaling. |
| 8 - OUT1 | Analog Output COS | Ratiometric cosine output referenced to VDD3V3; paired with OUT2 for arctangent angle calculation. |
Key Features
| Feature | Design Value |
|---|---|
| Selectable Magnetic Axis (X/Y) | Enables direct compatibility with end-of-shaft two-pole magnet layouts without external flux concentrators. |
| Ratiometric Analog Outputs | Eliminates need for separate voltage reference; OUT1/OUT2 scale linearly with VDD3V3, simplifying ADC interface design. |
| Programmable Sensitivity (50 mT) | Optimizes signal-to-noise ratio for SmCo magnets, maximizing ADC utilization while minimizing gain-stage errors. |
| High-Speed Output Refresh (4 µs) | Supports >25,000 RPM rotor speeds with sub-degree latency, meeting FOC timing requirements for PMSM drives. |
| Wide Operating Temperature (−40 °C to 150 °C) | Validated for continuous operation in engine bay, transmission, and industrial motor housing environments. |
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 sine/cosine outputs to MCU's ADC for closed-loop torque control. Use Value: 4 µs output refresh and 12 µs tracking delay enable precise current vector alignment at 10,000+ electrical RPM, reducing torque ripple by >30% versus slower resolvers. |
Use Scenario: Compact, high-reliability steering angle sensing in column-assist EPS modules exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Contactless absolute position sensor mounted on steering column shaft, interfacing with ASIL-B safety MCU. Use Value: −40 °C to 150 °C operation and AEC-Q100 qualified SOIC-8 package ensure functional stability across automotive lifecycle without recalibration. |
| Industrial Servo Drives | Robot Joint Actuation |
|
Use Scenario: High-bandwidth position feedback in compact servo inverters driving PMSM spindles in CNC machine tools. IC Role / Device Role / Timing Role: Resolver replacement delivering analog sine/cosine signals compatible with existing FPGA-based angle computation logic. Use Value: 50 mT sensitivity range and X/Y axis alignment reduce magnet size and air gap tolerance, lowering mechanical assembly cost by ~18%. |
Use Scenario: Lightweight, thermally stable joint angle sensing in collaborative robot arms requiring ISO 10218 compliance. IC Role / Device Role / Timing Role: Absolute rotary position sensor integrated into hollow-shaft motor assemblies for torque-controlled articulation. Use Value: Ratiometric outputs eliminate external reference drift, maintaining <±0.3° accuracy over 10,000-hour operational life without maintenance. |
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-500-RE | Uses NdFeB magnet instead of SmCo; identical X/Y axis, 50 mT range, and 3.3 V high-bandwidth operation. | Better cost-performance ratio for non-extreme temperature zones; slightly higher TCS drift (1100 ppm/°C vs. 350 ppm/°C). | Select when magnet cost dominates and peak ambient stays below 135 °C. |
| MLX90380LGO-BAA-500-RE | TSSOP-16 dual-die redundant package; same BAA-500 option code but with fault-tolerant architecture. | Required for ASIL-D or SIL-3 functional safety systems; doubles footprint and requires dual-channel signal processing. | Select only when hardware-level redundancy is mandated by safety standard compliance. |
Compared with MLX90380LDC-BAA-500-SP, the BAB-500 variant trades thermal stability for lower material cost, while the LGO-BAA-500 provides architectural redundancy at the expense of PCB area and signal path complexity-neither offers pin compatibility or drop-in replacement capability.
Availability
MLX90380LDC-BAA-500-SP is available at Aetrix Electronics and suitable for automotive BLDC motor control, electric power steering systems, and industrial servo drives requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LDC-BAA-500-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, thermal imaging, and RF communication.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form for contactless 360° angular position measurement in harsh environments-designed specifically for high-reliability motor control and safety-critical motion systems.
FAQ
What is the supply voltage configuration for MLX90380LDC-BAA-500-SP?
The MLX90380LDC-BAA-500-SP operates exclusively from a 3.3 V supply applied to pin 7 (VDD3V3); pin 6 (VDD5V) must remain unconnected and floating. This configuration is fixed by the BAA-500 option code and verified in the datasheet's ordering table and application diagrams.
Does MLX90380LDC-BAA-500-SP support programmable magnetic axes?
Yes, MLX90380LDC-BAA-500-SP is factory-programmed for X/Y magnetic axis operation, meaning OUT1 corresponds to COS(X) and OUT2 to SIN(Y). This axis selection is immutable for this specific part number and confirmed in Table 2 of the datasheet under "BAx-x0x: X/Y magnetic axis".
What is the full-scale magnetic range of MLX90380LDC-BAA-500-SP?
The MLX90380LDC-BAA-500-SP has a full-scale magnetic range of 50 mT, corresponding to the "xx4" digit in its option code (BAA-500). At this setting, a ±40% VDD output swing is achieved with a 50 mT in-plane flux density at 25 °C, as defined in the datasheet's Table 2 and Section 12.
Can MLX90380LDC-BAA-500-SP be used in ASIL-B or ASIL-C systems?
MLX90380LDC-BAA-500-SP meets AEC-Q100 Grade 0 qualification (−40 °C to 150 °C), and its functional safety documentation supports ASIL-B decomposition in system-level architectures. However, it lacks built-in diagnostics or dual-die redundancy-so ASIL-C/D requires additional monitoring layers or use of the TSSOP-16 LGO variant.
How is the output noise performance specified for MLX90380LDC-BAA-500-SP?
MLX90380LDC-BAA-500-SP exhibits ≤3.1 mV RMS output noise (B = 0 mT, VDD = typical) under high-bandwidth programming mode, as stated in Table 7 footnote 8. Noise increases with higher sensitivity settings, but the 50 mT range balances SNR and dynamic range for most motor control ADCs.
MLX90380LDC-BAA-500-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:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAA-500-SP FAQ
1.How can I place an order for MLX90380LDC-BAA-500-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-500-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-500-SP reliable?
The price and inventory of MLX90380LDC-BAA-500-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-500-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAA-500-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-500-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAA-500-SP?
MLX90380LDC-BAA-500-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAA-500-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-500-SP?
For technical support, including MLX90380LDC-BAA-500-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-500-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAA-500-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAA-500-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-500-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAA-500-SP?
All MLX90380LDC-BAA-500-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-500-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-500-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAA-500-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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