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Melexis Technologies NV MLX90380LDC-BAB-504-SP
- Part No.:
- MLX90380LDC-BAB-504-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-504-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,465
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Product details
Overview
MLX90380LDC-BAB-504-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 ratiometric operation across 3.3 V or 5 V supply. It supports NdFeB magnets, X/Y magnetic axis configuration, and 50 mT full-scale magnetic range for high-accuracy angular sensing in end-of-shaft motor feedback systems.
For engineers reviewing the MLX90380LDC-BAB-504-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package mapping, real-world motor control use cases, and two validated alternative parts with documented functional and application differences.
Technical Context
The MLX90380LDC-BAB-504-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are generated via on-chip signal conditioning including programmable gain, sample-and-hold filtering, and ratiometric scaling relative to VDD.
This variant is factory-programmed for NdFeB magnet compatibility (BAB), X/Y axis orientation (5xx → x0x), 50 mT full-scale range (BAB-5xx → xx4), and high-bandwidth operation (5xx → x5x). It operates from -40°C to 150°C with 6 mA typical supply current and supports dynamic angular error compensation via external MCU-based arctan(OUT2/OUT1) processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time rotor angle tracking up to 25,000 RPM with <74 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 50 mT - Optimized for NdFeB magnets in end-of-shaft configurations; yields ±40%VDD output swing at TA = 25°C. |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - Dual-rail support allows direct interface with 3.3 V or 5 V MCUs without level shifting. |
| Operating Temperature | -40°C to 150°C - Qualified for under-hood automotive and industrial motor control environments. |
| Output Linearity | ±0.5% - Measured over 0.5–4.5 V output range at 5 V supply; enables <1° total angular error after dynamic compensation. |
| Sensitivity Temperature Coefficient | 1100 ppm/°C - Factory-trimmed for NdFeB magnets to counteract flux density drift over temperature. |
| Output Offset Drift | ±1.5%VDD - Specified over full temperature range; stable baseline for offset correction in ECU firmware. |
Pinout & Package
MLX90380LDC-BAB-504-SP is housed in an 8-pin SOIC-8 package (JEDEC MS-012AC) with 1.27 mm pitch, 5.0 mm × 4.0 mm body, and exposed thermal pad (not electrically connected). Pin 1 is marked by a notch or dot; pins 2 and 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; requires low-impedance connection to system GND plane. |
| 2 | NC | No connect - must be soldered to GND to reduce EMI susceptibility and improve noise immunity. |
| 3 | TEST | Factory test pin - tied to GND in production; left floating or grounded per application diagram for EMC compliance. |
| 4 | NC | No connect - must be soldered to GND to minimize parasitic coupling and ensure stable biasing. |
| 5 | OUT2 | Analog SIN output - ratiometric voltage proportional to BY field component; drives ADC input directly. |
| 6 | VDD5V | 5 V supply rail - active only when operating in 5 V mode; VDD3V3 must remain floating in this configuration. |
| 7 | VDD3V3 | 3.3 V supply rail - active only when operating in 3.3 V mode; VDD5V must remain floating in this configuration. |
| 8 | OUT1 | Analog COS output - ratiometric voltage proportional to BX field component; paired with OUT2 for arctan computation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y field measurement eliminates need for external flux concentrators or multi-die assemblies. |
| Programmable Magnetic Axis | X/Y configuration (BAB-504) enables precise alignment with end-of-shaft permanent magnet topologies. |
| Ratiometric Analog Outputs | OUT1/OUT2 scale linearly with VDD, removing sensitivity to supply ripple and simplifying ADC reference design. |
| High-Speed Output Update | 4 µs refresh rate supports closed-loop FOC in high-RPM BLDC and PMSM motors without interpolation latency. |
| Factory Calibration | Pre-programmed for 50 mT range and NdFeB temperature coefficient - reduces system-level calibration effort. |
Applications
| Brushless Motor Rotor Position Feedback | Electric Power Steering (EPS) Angle Sensing |
|---|---|
Use Scenario: Real-time angular measurement of rotor position in a 4-pole BLDC motor driving an HVAC blower. IC Role / Device Role / Timing Role: Contactless resolver providing synchronized COS/SIN analog outputs sampled by MCU ADC at 250 kHz for field-oriented control. Use Value: Enables <1° electrical angle error at 15,000 RPM, supporting smooth torque delivery and reduced acoustic noise in variable-speed applications. |
Use Scenario: Absolute steering angle detection in automotive EPS column-assist systems with redundant safety requirements. IC Role / Device Role / Timing Role: Primary angular sensor delivering ratiometric outputs to main ECU; used alongside secondary sensor for ASIL-B monitoring. Use Value: -40°C to 150°C operation and AEC-Q100 qualification ensure reliability in harsh under-hood environments with minimal drift over lifetime. |
| Industrial Servo Motor Commutation | Rotary Actuator Position Monitoring |
Use Scenario: High-precision commutation feedback in a 200 W servo motor controlling robotic joint motion. IC Role / Device Role / Timing Role: Resolver IC interfacing directly to 12-bit SAR ADC of ARM Cortex-M7 controller; outputs updated every 4 µs. Use Value: 50 mT full-scale range matches NdFeB magnet geometry, maximizing ADC utilization and reducing quantization error in closed-loop position control. |
Use Scenario: Non-contact position verification in a valve actuator where mechanical wear must be eliminated. IC Role / Device Role / Timing Role: Absolute 360° position sensor mounted on actuator shaft; outputs processed via lookup table for fast open-loop positioning. Use Value: End-of-shaft X/Y configuration allows compact PCB placement adjacent to magnet, minimizing assembly tolerance stack-up and improving long-term repeatability. |
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-BAA-504-SP | Uses SmCo magnet instead of NdFeB; TCS = 350 ppm/°C vs. 1100 ppm/°C; identical pinout and bandwidth. | Optimized for high-temperature stability in aerospace or turbine applications where SmCo's lower TC is critical. | Select BAA-504 only if magnet material and thermal drift profile match system-level flux modeling - not a drop-in replacement for NdFeB designs. |
| MLX90380LGO-BAB-504-SP | Dual-die TSSOP-16 package with fully redundant signal paths; same magnetic specs but doubled supply pins and separate die grounds. | Required for ASIL-D or SIL-3 functional safety architectures needing hardware redundancy and fault detection. | Choose LGO-BAB-504 when ISO 26262 ASIL-D compliance is mandatory; SOIC-8 version lacks structural redundancy for safety-critical path validation. |
Compared with MLX90380LDC-BAB-504-SP, the BAA-504 variant trades NdFeB sensitivity for superior thermal stability with SmCo, while the LGO-BAB-504 adds physical redundancy at the cost of larger footprint and higher BOM count - neither is pin-compatible nor functionally interchangeable without board and firmware revalidation.
Availability
MLX90380LDC-BAB-504-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering systems, and industrial servo applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LDC-BAB-504-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 solutions.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor commutation, steering angle detection, and industrial actuation where robustness and precision are mission-critical.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-504-SP?
The MLX90380LDC-BAB-504-SP is factory-programmed for X/Y magnetic axis orientation, meaning OUT1 responds to the BX field component and OUT2 to the BY component. This configuration is optimized for end-of-shaft magnet arrangements where the magnetic field lies parallel to the IC surface, enabling accurate 360° angle calculation via arctan(OUT2/OUT1).
Can MLX90380LDC-BAB-504-SP operate from both 3.3 V and 5 V supplies?
Yes, MLX90380LDC-BAB-504-SP supports dual-supply operation: it can be powered from either 3.135–3.6 V (using VDD3V3 pin) or 4.5–5.5 V (using VDD5V pin), with the unused supply pin left floating. The analog outputs remain ratiometric to the active supply rail, preserving accuracy across both voltage domains without external regulation changes.
What is the full-scale magnetic range and sensitivity of MLX90380LDC-BAB-504-SP?
The MLX90380LDC-BAB-504-SP has a factory-programmed full-scale magnetic range of 50 mT, yielding ±40%VDD output swing at 25°C. Its sensitivity is 1.33%VDD/mT (equivalent to 66.5 mV/mT at 5 V), calibrated for NdFeB magnets and matched to the X/Y axis configuration for optimal linearity in end-of-shaft applications.
How does the 4 µs output refresh rate impact motor control performance?
The 4 µs output refresh rate of MLX90380LDC-BAB-504-SP enables sampling at up to 250 kHz, supporting high-bandwidth field-oriented control in motors rotating at 25,000 RPM. With total tracking delay under 74 µs in high-bandwidth mode, the MLX90380LDC-BAB-504-SP minimizes phase lag between mechanical rotation and digital angle estimation, improving torque ripple and dynamic response.
Is MLX90380LDC-BAB-504-SP qualified for automotive applications?
Yes, MLX90380LDC-BAB-504-SP is AEC-Q100 qualified for Grade 0 (-40°C to +150°C), features ESD protection up to 2 kV HBM, and meets automotive EMC requirements. Its design targets electric power steering, transmission position sensing, and traction motor control - all validated under ISO/TS 16949 manufacturing controls and automotive-grade reliability testing.
MLX90380LDC-BAB-504-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-BAB-504-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-504-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-504-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-504-SP reliable?
The price and inventory of MLX90380LDC-BAB-504-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-504-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-504-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-504-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-504-SP?
MLX90380LDC-BAB-504-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-504-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-504-SP?
For technical support, including MLX90380LDC-BAB-504-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-504-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-504-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-504-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-504-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-504-SP?
All MLX90380LDC-BAB-504-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-504-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-504-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-504-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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