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Melexis Technologies NV MLX90380LDC-BAB-025-SP
- Part No.:
- MLX90380LDC-BAB-025-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-025-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,348
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Product details
Overview
MLX90380LDC-BAB-025-SP from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver replacement in motor control systems. 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, X/Z magnetic axis, 60 mT full-scale range, and high-bandwidth mode.
For engineers reviewing the MLX90380LDC-BAB-025-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package details, angular error performance under dynamic conditions, magnetic axis configuration, and real-world motor control integration guidance - all specific to the BAB-025 variant.
Technical Context
The MLX90380LDC-BAB-025-SP implements Triaxis® Hall technology with orthogonal and in-plane magnetic field sensing, enabling precise angular position extraction via arctangent computation of its dual analog outputs. Its X/Z intrinsic magnetic axis configures OUT1 as COS (BX) and OUT2 as SIN (BZ), supporting both end-of-shaft and through-shaft magnet arrangements.
This variant is factory-programmed for NdFeB magnets, 60 mT full-scale magnetic range, and high-bandwidth operation (tracking delay ≤12 µs), with sensitivity set to 0.66 %VDD/mT at 5V supply. Output ratiometry, programmable filter bandwidth, and on-chip temperature compensation ensure robustness across automotive and industrial motor control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 60 mT - Factory-programmed for NdFeB magnets; delivers ±40% VDD output swing at TA = 25°C, VDD = 5V. |
| Sensitivity | 0.66 %VDD/mT - At 5V supply; enables optimal ADC utilization when paired with 12-bit+ microcontrollers. |
| Operating Temperature | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments. |
| Magnetic Axis | X/Z - OUT1 = COS(BX), OUT2 = SIN(BZ); supports off-axis through-shaft configurations with BZ/BXY = 2:1 flux ratio. |
| Total Angular Error | ±1° with dynamic compensation - Achieved via external ECU offset/gain/phase correction prior to arctan(OUT2/OUT1). |
| Supply Voltage Options | 3.3V or 5V - Dual VDD pins (VDD3V3/VDD5V) allow flexible MCU interface without level-shifting. |
Pinout & Package
MLX90380LDC-BAB-025-SP is housed in an 8-pin SOIC-8 package (JEDEC MS-012AC), with exposed pad option not specified. Pin functions are validated per Melexis datasheet Revision 11 (June 2021), Section 9.1.
| 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. |
| 2 NC | Not Connected | No internal connection; recommended to tie to GND for EMC improvement per datasheet guidance. |
| 3 TEST | Test Pin | Factory test access; tie to GND for optimal EMC; not intended for user functionality. |
| 4 NC | Not Connected | No internal connection; recommended to tie to GND for EMC improvement. |
| 5 OUT2 | Analog Output SIN | Sine output referenced to VDD; ratiometric, 0–100% VDD swing; used with OUT1 for arctan-based angle calculation. |
| 6 VDD5V | 5V Supply Input | Active 5V power rail; when used, VDD3V3 must remain floating per datasheet Section 9.1. |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V power rail; when used, VDD5V must remain floating; supports lower-noise operation at reduced supply. |
| 8 OUT1 | Analog Output COS | Cosine output referenced to VDD; ratiometric, 0–100% VDD swing; paired with OUT2 for absolute angular resolution. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X/Y) field measurement enables true 3D magnetic vector resolution without external concentrators. |
| Programmable Magnetic Axis | X/Z configuration (BAB-025) supports through-shaft mounting with two-pole magnets, eliminating mechanical alignment constraints of traditional resolvers. |
| Ratiometric Analog Outputs | OUT1/OUT2 scale directly with VDD, removing supply voltage drift impact on angle accuracy - critical for noisy automotive power rails. |
| High-Speed Output Update | 4 µs per field component (8 µs full sine/cosine pair) enables closed-loop FOC at >20 kHz PWM frequencies in PMSM applications. |
| Factory Calibration & Programming | BAB-025 variant pre-configured for NdFeB magnet, 60 mT range, X/Z axis, and high-bandwidth mode - eliminates field programming overhead. |
Applications
| Brushless Motor Rotor Position | PMSM Field-Oriented Control |
|---|---|
|
Use Scenario: Real-time rotor angle feedback in traction inverters for electric power steering (EPS) and HVAC blower motors. IC Role / Device Role / Timing Role: Contactless absolute angular position sensor replacing resolvers; provides synchronized sine/cosine outputs for arctan-based angle computation. Use Value: Enables <±1° dynamic angular accuracy at 25,000 rpm, supporting high-efficiency torque control without mechanical wear or excitation windings. |
Use Scenario: High-bandwidth position sensing in permanent magnet synchronous motors used in industrial servo drives and robotics joints. IC Role / Device Role / Timing Role: Primary position transducer feeding angle data to FOC algorithm; outputs updated every 4 µs for minimal current loop latency. Use Value: Delivers 0.66 %VDD/mT sensitivity and ratiometric outputs that maintain linearity across 3.3V–5V supply variations, reducing calibration burden in multi-rail systems. |
| End-of-Shaft Rotary Encoder | Through-Shaft Motor Feedback |
|
Use Scenario: Compact angular measurement in space-constrained BLDC motors where magnet is mounted directly on motor shaft end. IC Role / Device Role / Timing Role: Triaxis® X/Y configured sensor detecting rotating magnet field; outputs fed to MCU ADC for 12-bit+ angle resolution. Use Value: Eliminates optical encoder fragility and resolver bulk while achieving ±0.5° linearity error over 360°, suitable for IP67-rated motor housings. |
Use Scenario: Off-axis angular sensing in gearmotor assemblies where magnet rotates around, not on, the sensor IC axis. IC Role / Device Role / Timing Role: X/Z configured MLX90380LDC-BAB-025-SP detecting axial (BZ) and radial (BX) components for through-shaft topology. Use Value: Supports BZ/BXY = 2:1 flux ratio requirement for accurate angle reconstruction without custom magnetization patterns. |
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-023-RE | Same SOIC-8 package and NdFeB magnet support, but 30 mT full-scale range and medium-bandwidth mode (29.5 µs tracking delay). | Better suited for lower-speed motors (<10,000 rpm) or systems requiring higher signal-to-noise ratio at reduced bandwidth. | Select when angular update rate is secondary to output stability under vibration or EMI. |
| MLX90380LGO-BAB-025-RE | TSSOP-16 dual-die redundant package; identical BAB-025 programming (NdFeB, X/Z, 60 mT, high BW), but with functional safety compliance (ASIL-B ready). | Required for ISO 26262-compliant automotive powertrain or steering applications demanding fault detection and redundancy. | Choose for safety-critical deployments where single-point failure mitigation is mandated, accepting larger footprint and higher cost. |
Compared with MLX90380LDC-BAB-025-SP, the BAB-023-RE trades speed for noise immunity in less demanding motion control, while the LGO-BAB-025-RE adds hardware-level redundancy and ASIL-B readiness at the expense of board area - neither is pin-compatible, but both share identical magnetic programming and signal chain behavior.
Availability
MLX90380LDC-BAB-025-SP is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control, and high-temperature industrial position sensing requiring stable component supply across extended lifecycle programs.
Supply support for MLX90380LDC-BAB-025-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 Triaxis® contactless angular position sensing for resolver replacement in high-reliability motor control systems, targeting automotive EPS, industrial servos, and aerospace actuators.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-025-SP?
The MLX90380LDC-BAB-025-SP is factory-programmed for X/Z magnetic axis operation, meaning OUT1 carries the cosine of the X-axis field (BX) and OUT2 carries the sine of the Z-axis field (BZ). This configuration supports through-shaft mounting with two-pole magnets and requires BZ/BXY ≈ 2:1 flux ratio per datasheet Section 8.2. The BAB-025 option code explicitly denotes X/Z axis selection.
Does MLX90380LDC-BAB-025-SP require external programming for operation?
No, MLX90380LDC-BAB-025-SP is fully factory-programmed for NdFeB magnet compatibility, 60 mT full-scale range, X/Z magnetic axis, and high-bandwidth mode. It powers up ready for use with no EEPROM programming required. The TEST pin is reserved for factory use only and must be tied to GND in application circuits per datasheet Section 9.1.
What supply voltage should be used with MLX90380LDC-BAB-025-SP?
MLX90380LDC-BAB-025-SP supports either 3.3V or 5V operation via dedicated VDD3V3 and VDD5V pins. For this variant, 5V supply is recommended to achieve its rated 0.66 %VDD/mT sensitivity and full 25,000 rpm capability. When using 5V, VDD3V3 must remain floating per datasheet Section 9.1 and Figure 13.
How does MLX90380LDC-BAB-025-SP achieve ±1° angular accuracy?
MLX90380LDC-BAB-025-SP achieves ±1° total angular error only when combined with dynamic compensation in the host ECU - specifically offset, gain, and phase correction applied to OUT1/OUT2 prior to arctan(OUT2/OUT1) computation. The sensor itself contributes ≤±10° uncorrected error; the ±1° figure reflects post-processing per datasheet Table 8 footnote 18.
Can MLX90380LDC-BAB-025-SP replace a traditional resolver in motor control?
Yes, MLX90380LDC-BAB-025-SP is designed as a direct resolver replacement, delivering true 360° sine/cosine analog outputs with ratiometric scaling, high-speed update (4 µs), and automotive-grade temperature range (-40°C to 150°C). Unlike resolvers, it requires no excitation signal or transformer coupling, simplifying PCB layout and reducing system BOM cost while maintaining comparable angular fidelity under dynamic conditions.
MLX90380LDC-BAB-025-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-025-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-025-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-025-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-025-SP reliable?
The price and inventory of MLX90380LDC-BAB-025-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-025-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-025-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-025-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-025-SP?
MLX90380LDC-BAB-025-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-025-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-025-SP?
For technical support, including MLX90380LDC-BAB-025-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-025-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-025-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-025-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-025-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-025-SP?
All MLX90380LDC-BAB-025-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-025-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-025-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-025-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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