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Melexis Technologies NV MLX90380LDC-BAB-000-SP
- Part No.:
- MLX90380LDC-BAB-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-000-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,664
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Product details
Overview
MLX90380LDC-BAB-000-SP from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver emulation. It operates from 3.3V or 5V supply, supports -40°C to 150°C ambient, features 4 µs output refresh rate, and is factory-programmed for NdFeB magnet compatibility with X/Y magnetic axis and 40 mT full-scale range - used in high-reliability motor control feedback loops.
For engineers reviewing the MLX90380LDC-BAB-000-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package details, angular error specs under dynamic conditions, magnetic axis configuration, and real-world motor control integration guidance - all grounded in Revision 11 (June 2021) official documentation.
Technical Context
The MLX90380LDC-BAB-000-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components on a single die. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, with programmable bandwidth (high/medium/low) via internal filter coefficients.
This variant uses an X/Y intrinsic magnetic axis configuration, supports end-of-shaft mounting, and delivers ±1° total angular error after dynamic compensation - enabled by its 1.6 samples/degree resolution at 25,000 rpm and 125 kHz Nyquist frequency under high-bandwidth programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle tracking up to 25,000 rpm with 1.6 samples per mechanical degree. |
| Operating Supply | 3.3V or 5V - dual-supply pins (VDD3V3/VDD5V) allow flexible MCU interface without level-shifting. |
| Full-Scale Magnetic Range | 40 mT - factory-programmed for NdFeB magnets, optimized for robust signal-to-noise in industrial BLDC systems. |
| Angular Accuracy | ±1° total error with dynamic compensation - achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction. |
| Temperature Range | -40°C to 150°C - qualified for under-hood automotive and industrial motor drive environments. |
| Magnetic Axis | X/Y - supports end-of-shaft configurations with equal sensitivity on both axes for symmetrical sinusoidal outputs. |
| Output Type | Ratiometric sine/cosine analog - eliminates dependency on absolute VDD stability; simplifies ADC reference design. |
Pinout & Package
MLX90380LDC-BAB-000-SP is housed in a RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm, 1.75 mm height), optimized for surface-mount assembly and thermal performance in motor control PCBs.
| 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, 4 - NC | Not Connected | Internally unconnected; recommended to tie to VSS for EMC integrity per datasheet Section 9.1. |
| 3 - TEST | Test Pin | Factory test access; tie to VSS for optimal EMC behavior in production designs. |
| 5 - OUT2 | Analog Output SIN | Sine waveform output referenced to VDD; ratiometric, 0–100% VDD swing, ±40% VDD full scale at 40 mT. |
| 6 - VDD5V | 5V Supply Input | Active 5V supply rail; when used, VDD3V3 must remain floating per datasheet Section 9.1. |
| 7 - VDD3V3 | 3.3V Supply Input | Active 3.3V supply rail; when used, VDD5V must remain floating - enables direct interface with 3.3V MCUs. |
| 8 - OUT1 | Analog Output COS | Cosine waveform output referenced to VDD; matches OUT2 timing and linearity for precise arctangent computation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Single-die 3D field measurement enabling X/Y orthogonal detection without external flux concentrators or multi-sensor alignment. |
| Programmable Bandwidth | Three selectable filter settings (low/medium/high) adjust tracking delay (12–85.5 µs) to match motor speed and ECU processing latency. |
| Factory Magnetic Calibration | Pre-programmed for NdFeB magnets with X/Y axis and 40 mT range - eliminates field calibration during production. |
| Ratiometric Outputs | Output voltages scale linearly with VDD, removing need for precision voltage references and reducing ADC error from supply drift. |
| End-of-Shaft Compatibility | X/Y axis configuration supports compact axial mounting directly on rotating shafts - no through-hole or side-mount mechanical redesign required. |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
Use Scenario: Real-time rotor position feedback in 3-phase inverter gate drive for field-oriented control (FOC). IC Role / Device Role / Timing Role: Resolver replacement delivering synchronized sine/cosine analog outputs to MCU ADC inputs at ≤4 µs update interval. Use Value: Enables smooth torque delivery and high-efficiency operation up to 25,000 rpm with <±1° compensated angular error. |
Use Scenario: High-accuracy commutation in traction inverters for electric power steering and HVAC compressors. IC Role / Device Role / Timing Role: Contactless angular transducer providing differential position data to safety-critical ASIL-B motor controllers. Use Value: Supports ISO 26262 functional safety requirements via stable -40°C to 150°C operation and redundant-ready architecture. |
| Industrial Servo Drives | Electric Power Steering (EPS) |
Use Scenario: Closed-loop position control in robotic joint actuators requiring sub-degree repeatability over 10+ years lifetime. IC Role / Device Role / Timing Role: Primary position sensor interfacing with dual-core ARM Cortex-M7 MCUs via simultaneous sampling of OUT1/OUT2. Use Value: Delivers <±0.5° linearity error across temperature and lifetime, reducing need for periodic recalibration in factory automation. |
Use Scenario: Torque-assist angle sensing in column-assist EPS modules where space and thermal constraints limit sensor options. IC Role / Device Role / Timing Role: Compact SOIC-8 resolver emulator mounted directly on steering column shaft with minimal air gap. Use Value: Achieves AEC-Q100 Grade 0 qualification and meets automotive EMC standards without external shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAA-000-SP | Uses SmCo magnet calibration (vs. NdFeB); identical X/Y axis, 40 mT range, SOIC-8 package. | Optimized for higher-temperature magnet systems (>120°C operating point) where SmCo retains coercivity. | Select when magnet operating point exceeds 100°C and long-term flux stability is critical; requires matching magnet type. |
| MLX90380LGO-BAB-000-SP | TSSOP-16 dual-die fully redundant package (vs. SOIC-8 single die); same BAB-000 magnetic programming. | Required for ASIL-D systems needing hardware redundancy; doubles footprint and adds die-level fault detection capability. | Choose for safety-critical automotive applications demanding fault-tolerant position reporting; not drop-in compatible due to pin count and layout. |
Compared with MLX90380LDC-BAA-000-SP, the MLX90380LDC-BAB-000-SP offers better cost-performance balance for NdFeB-based motors, while MLX90380LGO-BAB-000-SP provides architectural redundancy at the expense of board area and BOM complexity - all three share identical signal chain accuracy and programming interface.
Availability
MLX90380LDC-BAB-000-SP is available at Aetrix Electronics and suitable for brushless DC motor control, permanent magnet synchronous motor feedback, and electric power steering systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MLX90380LDC-BAB-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 markets, with core expertise in magnetic sensing, thermal imaging, and wireless charging.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form - designed specifically for high-accuracy, contactless angular position sensing in demanding motor control and safety-critical motion systems.
FAQ
What is the magnetic axis configuration of the MLX90380LDC-BAB-000-SP?
The MLX90380LDC-BAB-000-SP is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 responds to the X-component and OUT2 to the Y-component of the applied magnetic field. This supports end-of-shaft mounting with symmetrical sensitivity and is confirmed in Table 2 of the datasheet under option code BAB-000 (x0x suffix). The X/Y axis ensures equal sensitivity and optimal sine/cosine waveform fidelity for resolver emulation.
Does the MLX90380LDC-BAB-000-SP support both 3.3V and 5V operation simultaneously?
No - the MLX90380LDC-BAB-000-SP supports either 3.3V or 5V operation, but not both simultaneously. Pin 6 (VDD5V) and Pin 7 (VDD3V3) are separate supply inputs; when using 5V, VDD3V3 must be left floating, and vice versa. This dual-rail design allows flexible interface with either 3.3V or 5V MCUs without external regulators, as specified in Section 9.1 of the datasheet.
What is the total angular error specification for the MLX90380LDC-BAB-000-SP?
The MLX90380LDC-BAB-000-SP achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host MCU's arctan(OUT2/OUT1) computation. Without correction, total error is ±10° at 25°C and ±15° across -40°C to 150°C. These values are specified in Table 8 of the datasheet and assume proper magnet alignment and PCB layout per Melexis application guidelines.
Can the MLX90380LDC-BAB-000-SP be used with ferrite or SmCo magnets?
No - the MLX90380LDC-BAB-000-SP is specifically calibrated for NdFeB magnets, as indicated by the "BAB" option code (BAA = SmCo, BAB = NdFeB, BAC = Ferrite). Using it with SmCo or ferrite magnets will result in incorrect sensitivity scaling and degraded angular accuracy. Matching magnet type to the option code is mandatory for specified performance.
Is the MLX90380LDC-BAB-000-SP pin-compatible with other MLX90380 variants in SOIC-8?
Yes - all SOIC-8 variants of the MLX90380 (e.g., BAA, BAB, BAC prefixes) share identical pinout, package dimensions, and electrical interface per Section 9.1 and Figure 14 of the datasheet. The only differences are factory-programmed parameters (magnet type, sensitivity range, axis, bandwidth), making them functionally interchangeable at the PCB level when magnet and system requirements align.
MLX90380LDC-BAB-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-BAB-000-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-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-BAB-000-SP reliable?
The price and inventory of MLX90380LDC-BAB-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-BAB-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-000-SP?
MLX90380LDC-BAB-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-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-BAB-000-SP?
For technical support, including MLX90380LDC-BAB-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-000-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-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-BAB-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-000-SP?
All MLX90380LDC-BAB-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-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-BAB-000-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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