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Melexis Technologies NV MLX90380LDC-BAA-105-SP
- Part No.:
- MLX90380LDC-BAA-105-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAA-105-SP.pdf
- Description:
- TRIAXIS HI-SPEED RESOLVER FEAT.
- Quantity:
- Payment:
- Shipping:
Inventory:4,765
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Product details
Overview
MLX90380LDC-BAA-105-SP from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs with 4 µs output refresh rate, ±40%VDD swing, and operation across -40°C to 150°C. It uses NdFeB magnet sensitivity (60 mT full-scale range), X/Y magnetic axis configuration, and high-bandwidth programming for brushless motor rotor angle sensing in automotive EPS and industrial servo drives.
For engineers reviewing the MLX90380LDC-BAA-105-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis–specific pin definitions, ratiometric analog output behavior, and validated alternatives for resolver-based motor control designs.
Technical Context
The MLX90380LDC-BAA-105-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components using integrated planar and vertical Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and calibrated for 60 mT full-scale range with NdFeB magnets.
This variant is factory-programmed for X/Y magnetic axis, high-bandwidth mode (4 µs update period), and 5V supply operation - enabling sub-1° total angular error with dynamic compensation and 25,000 rpm maximum magnetic angular speed tracking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time rotor position feedback at up to 25,000 rpm without interpolation delay |
| Full-Scale Magnetic Range | 60 mT - optimized for NdFeB magnets in end-of-shaft configurations per BAB-105 option code |
| Operating Supply Voltage | 4.5–5.5 V - requires VDD5V pin active; VDD3V3 must be left floating in 5V-mode applications |
| Output Voltage Range | 10–90 %VDD - ratiometric sine/cosine outputs centered at 50 %VDD with ±40 %VDD swing |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and industrial motor control environments |
| Total Angular Error (w/ compensation) | ±1° - achievable via off-chip arctan(OUT2/OUT1) with offset/gain correction after one revolution |
| Magnetic Axis Configuration | X/Y - OUT1 proportional to BX, OUT2 proportional to BY; supports two-pole end-of-shaft magnet mounting |
Pinout & Package
MLX90380LDC-BAA-105-SP is housed in an 8-pin SOIC-8 package (JEDEC MS-012AC) with exposed pad for thermal enhancement. Pin 1 is located at the top-left corner adjacent to the index mark. Unused pins (2, 4) and TEST (3) must be connected to VSS for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuits and output stage |
| 2 | NC | No internal connection; must be tied to VSS for EMC compliance |
| 3 | TEST | Factory test access; connect to VSS during normal operation to suppress noise |
| 4 | NC | No internal connection; must be tied to VSS for EMC compliance |
| 5 | OUT2 | Analog SIN output - voltage proportional to BY, ratiometric to VDD |
| 6 | VDD5V | 5V supply input - active in this variant; powers internal regulator and analog front-end |
| 7 | VDD3V3 | 3.3V supply input - must remain floating when VDD5V is used |
| 8 | OUT1 | Analog COS output - voltage proportional to BX, ratiometric to VDD |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Y) field measurement eliminates need for external flux concentrators or multi-die assemblies |
| Selectable Magnetic Axis | X/Y configuration enables direct compatibility with standard end-of-shaft permanent magnet assemblies |
| High-Bandwidth Programming | 4 µs output update period supports closed-loop FOC at >20 kHz PWM frequencies without latency-induced instability |
| Ratiometric Analog Outputs | OUT1/OUT2 scaling tracks VDD variation, simplifying ADC interface design and eliminating separate reference voltage circuitry |
| Programmable Sensitivity | 60 mT full-scale range (BAB-105) matches NdFeB magnet strength and air-gap tolerance in compact motor housings |
Applications
| Electric Power Steering (EPS) | Industrial Servo Motor Feedback |
|---|---|
Use Scenario: Real-time rotor angle measurement for torque assist control in 12V/48V automotive steering systems. IC Role / Device Role / Timing Role: Primary resolver replacement providing analog sine/cosine signals to MCU-based motor controller for field-oriented control. Use Value: Enables <±1° angular accuracy over lifetime and temperature with on-the-fly dynamic compensation, meeting ASIL-B functional safety requirements. |
Use Scenario: High-reliability position feedback in CNC machine spindle drives operating continuously at 10,000+ rpm. IC Role / Device Role / Timing Role: Contactless angular transducer interfacing directly to 12-bit SAR ADC inputs of industrial motion controllers. Use Value: Delivers 4 µs deterministic output timing and 25,000 rpm tracking capability without interpolation, reducing jitter in velocity loop response. |
| Brushless DC Motor Commutation | Robot Joint Actuation |
Use Scenario: Six-step commutation timing in HVAC blower motors where cost-sensitive, robust position sensing is required. IC Role / Device Role / Timing Role: Sine/cosine signal source for lookup-table-based commutation logic in low-cost BLDC gate drivers. Use Value: Eliminates Hall-effect sensor alignment tolerances and provides continuous angle data for smoother torque delivery vs. discrete Hall latching. |
Use Scenario: Compact joint-angle sensing in collaborative robot arms requiring IP67-rated, high-temperature operation. IC Role / Device Role / Timing Role: End-of-shaft mounted position sensor feeding real-time angle to safety-certified motion controller. Use Value: -40°C to +150°C rating allows integration inside sealed gearmotor housings without external cooling or derating. |
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-100-RE | Same SOIC-8 package and NdFeB magnet support, but 40 mT full-scale range and medium-bandwidth (2 µs update per axis) programming | Suitable for lower-speed motors (<15,000 rpm) or larger air gaps where 60 mT sensitivity causes saturation | Select when magnetic system flux density is below 50 mT peak and latency budget allows 8 µs total output cycle time |
| MLX90380LGO-BAB-105-RE | TSSOP-16 dual-die fully redundant architecture; identical 60 mT range, X/Y axis, and high-bandwidth mode | Required for ASIL-D or SIL-3 functional safety systems needing hardware redundancy and fault detection | Choose for safety-critical automotive drivetrain or industrial safety PLC applications where single-point failure mitigation is mandated |
Compared with MLX90380LDC-BAA-105-SP, the BAB-100 offers reduced sensitivity and longer update latency but lower system cost, while the LGO-BAB-105 provides identical performance with built-in redundancy - making it suitable for ISO 26262 ASIL-D or IEC 61508 SIL-3 implementations where fault coverage is mandatory.
Availability
MLX90380LDC-BAA-105-SP is available at Aetrix Electronics and suitable for electric power steering, industrial servo motor feedback, and brushless DC motor commutation requiring stable component supply across automotive production cycles and industrial equipment lifecycles.
Supply support for MLX90380LDC-BAA-105-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 sensor solutions for automotive and industrial markets, with core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form for high-accuracy, contactless angular position sensing in demanding motor control and safety-critical applications.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAA-105-SP?
The MLX90380LDC-BAA-105-SP is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 responds proportionally to the BX field component and OUT2 to BY. This supports two-pole end-of-shaft magnet mounting and is confirmed by the "BAB-105" option code's third digit "1", per Table 2 of the datasheet. The X/Y axis ensures equal sensitivity between orthogonal directions without gain mismatch correction.
Does MLX90380LDC-BAA-105-SP support both 3.3V and 5V supply operation?
No - MLX90380LDC-BAA-105-SP is configured for 5V operation only, as indicated by the "105" option code suffix (first digit "1" = 5V supply, second digit "0" = high bandwidth, third digit "5" = 60 mT range). Per Section 9.1 and Figure 13, VDD5V must be powered at 4.5–5.5 V while VDD3V3 is left floating. Attempting 3.3V operation will prevent proper initialization.
What is the full-scale magnetic range and magnet type compatibility for MLX90380LDC-BAA-105-SP?
The MLX90380LDC-BAA-105-SP has a 60 mT full-scale magnetic range and is optimized for NdFeB magnets, as specified by the "BAB" prefix in its option code (BAA = SmCo, BAB = NdFeB, BAC = Ferrite). This range corresponds to ±40%VDD output swing at TA = 25°C and enables robust operation with typical NdFeB rotors in end-of-shaft configurations with air gaps up to 3 mm.
How does the 4 µs output refresh rate of MLX90380LDC-BAA-105-SP translate to real-time motor control performance?
The 4 µs output refresh rate means both OUT1 (COS) and OUT2 (SIN) are updated every 4 µs - enabling accurate rotor position capture at up to 25,000 rpm. At 20,000 rpm, this yields ~1.6 samples per electrical degree for a 4-pole motor, supporting high-bandwidth field-oriented control loops without interpolation artifacts or phase lag-induced instability in servo drive applications.
Can MLX90380LDC-BAA-105-SP be used in safety-critical automotive applications like EPS?
Yes - MLX90380LDC-BAA-105-SP meets AEC-Q100 Grade 0 qualification (-40°C to +150°C), supports dynamic angular error compensation down to ±1°, and provides ratiometric outputs compatible with ASIL-B system architectures. For ASIL-D, Melexis recommends the redundant TSSOP-16 variant MLX90380LGO-BAB-105-RE instead, as the SOIC-8 version lacks hardware redundancy required for highest safety integrity levels.
MLX90380LDC-BAA-105-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- 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:
- 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:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAA-105-SP FAQ
1.How can I place an order for MLX90380LDC-BAA-105-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-105-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-105-SP reliable?
The price and inventory of MLX90380LDC-BAA-105-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-105-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAA-105-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-105-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAA-105-SP?
MLX90380LDC-BAA-105-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAA-105-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-105-SP?
For technical support, including MLX90380LDC-BAA-105-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-105-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAA-105-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAA-105-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-105-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAA-105-SP?
All MLX90380LDC-BAA-105-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-105-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-105-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAA-105-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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