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Melexis Technologies NV MLX90380LDC-BAB-103-SP
- Part No.:
- MLX90380LDC-BAB-103-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-103-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,274
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Product details
Overview
MLX90380LDC-BAB-103-SP from Melexis is a monolithic Triaxis® Hall-based resolver IC delivering true 360° sine/cosine analog outputs for absolute rotary position sensing. 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, 30 mT full-scale magnetic range, X/Y magnetic axis, and high-bandwidth operation - enabling precise angle measurement in brushless motor rotor position feedback.
For engineers reviewing the MLX90380LDC-BAB-103-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis configuration, ratiometric analog output behavior, and validated alternatives for automotive and industrial motor control designs.
Technical Context
The MLX90380LDC-BAB-103-SP implements Triaxis® Hall technology with orthogonal and in-plane magnetic field sensitivity, enabling contactless angular position detection using rotating permanent magnets. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and deliver ±40% VDD swing at full-scale flux density.
This variant is preprogrammed for X/Y magnetic axis configuration, 30 mT full-scale range (BAB-103), NdFeB magnet optimization, and high-bandwidth mode (suffix '3' in third digit), yielding 125 kHz Nyquist frequency and 12 µs tracking delay - optimized for fast-response field-oriented control loops in PMSM and BLDC systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle computation at up to 250 kSPS for high-speed motor commutation. |
| Operating Supply | 3.3V or 5V - dual-rail support allows direct interface with 3.3V MCUs or legacy 5V systems without level-shifting. |
| Full-Scale Magnetic Range | 30 mT - calibrated for NdFeB magnets, ensuring optimal ADC utilization and signal-to-noise ratio in end-of-shaft configurations. |
| Magnetic Axis | X/Y - delivers orthogonal BX and BY field components for true 360° angle resolution with minimal harmonic distortion. |
| Temperature Range | -40°C to 150°C - qualified for under-hood automotive and industrial motor drive environments without derating. |
| Output Linearity | ±0.5% - specified at VDD=5V within 0.5–4.5 V output window, supporting high-accuracy closed-loop torque control. |
| Tracking Delay | 12 µs - fixed low-latency response in high-bandwidth mode, critical for <10 µs current loop timing budgets. |
Pinout & Package
MLX90380LDC-BAB-103-SP is housed in an industry-standard SOIC-8 package (5.3 mm × 6.2 mm, 1.27 mm pitch), RoHS-compliant, with exposed pad option not applicable. Unused pins (NC) and TEST must be connected to ground for optimal EMC performance.
| 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 | Internally unconnected; requires external tie to GND per EMC guidelines to suppress parasitic coupling. |
| 3 TEST | Factory Test Pin | Used during wafer sort and final test; must be grounded in application to prevent noise injection and ensure stable biasing. |
| 4 NC | Not Connected | Internally unconnected; requires external tie to GND per EMC guidelines to suppress parasitic coupling. |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage output proportional to BY; 0–100% VDD swing, ±40% VDD at full scale, 25 Ω source impedance. |
| 6 VDD5V | 5V Supply Input | Active 5V rail; when used, VDD3V3 must remain floating - enables higher SNR and extended temperature stability. |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V rail; when used, VDD5V must remain floating - reduces power consumption and simplifies LDO selection. |
| 8 OUT1 | Analog Output COS | Ratiometric voltage output proportional to BX; 0–100% VDD swing, ±40% VDD at full scale, 25 Ω source impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X/Y) field detection enables single-chip 360° angle resolution without external flux concentrators. |
| Selectable Magnetic Axis | X/Y configuration (BAB-103) ensures equal sensitivity on both axes - ideal for end-of-shaft two-pole magnet mounting with minimal mechanical alignment tolerance. |
| Ratiometric Analog Outputs | OUT1 and OUT2 scale linearly with VDD, eliminating need for precision voltage references and simplifying MCU ADC calibration across supply variations. |
| Programmable Bandwidth | High-bandwidth mode ('3') sets 125 kHz Nyquist frequency and 12 µs tracking delay - matched to fast PMSM rotor dynamics up to 25,000 rpm. |
| Factory Calibration | Preprogrammed for NdFeB magnet (BAB), 30 mT range (103), and X/Y axis - eliminates field programming time and ensures consistent production startup. |
Applications
| Brushless Motor Rotor Position | PMSM Field-Oriented Control |
|---|---|
Use Scenario: Real-time angular position feedback for commutation timing in 3-phase BLDC motors driving electric power steering or HVAC blowers. IC Role / Device Role / Timing Role: Resolver IC providing synchronized COS/SIN analog outputs to MCU ADC, replacing optical encoders in harsh environments. Use Value: 4 µs update rate and 12 µs tracking delay enable sub-10 µs angle latency - meeting tight timing budgets for 20 kHz PWM motor drives. |
Use Scenario: High-accuracy rotor angle input for vector control algorithms in traction inverters and servo amplifiers. IC Role / Device Role / Timing Role: Primary angular sensor feeding Park/Clarke transforms; ratiometric outputs maintain accuracy across battery voltage sag (10–16 V). Use Value: ±0.5% linearity and -40°C to 150°C operation ensure torque consistency across thermal transients in automotive drivetrain applications. |
| End-of-Shaft Rotary Encoder | Industrial Actuator Feedback |
Use Scenario: Compact, non-contact position sensing on rotating shafts of robotic joints and valve actuators where space and reliability are critical. IC Role / Device Role / Timing Role: Contactless resolver IC mounted directly on PCB adjacent to magnet - no bearings, brushes, or optical windows required. Use Value: X/Y magnetic axis and 30 mT range optimize signal amplitude for small-diameter NdFeB magnets, reducing mechanical footprint by >40% vs. traditional resolvers. |
Use Scenario: Closed-loop position monitoring in hydraulic/pneumatic cylinder feedback systems and CNC machine tool spindles. IC Role / Device Role / Timing Role: Absolute angle sensor interfacing with industrial PLC ADC inputs; ratiometric outputs tolerate 5–10% supply ripple common in factory power rails. Use Value: -40°C to 150°C rating and AEC-Q100-aligned ESD robustness (2 kV HBM) ensure uninterrupted operation in unconditioned industrial enclosures. |
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-000-RE | SmCo magnet optimized, 40 mT range, X/Y axis, low-bandwidth mode (0xx) | Higher full-scale range suits larger air gaps; slower 74 µs tracking delay limits use in >10,000 rpm systems | Select when using SmCo magnets and lower bandwidth is acceptable for cost-sensitive industrial fans or pumps. |
| MLX90380LGO-BAB-103-RE | TSSOP-16 dual-die redundant package, same BAB-103 programming, 1.5 kV CDM ESD rating | Redundant architecture required for ASIL-D functional safety compliance; larger footprint and higher cost | Choose for automotive EPS or brake-by-wire where fault-tolerant dual-channel operation is mandated. |
Compared with MLX90380LDC-BAB-103-SP, the BAA-000 offers wider magnetic range but slower response, while the LGO-BAB-103 adds redundancy and safety certification at the expense of size and cost - making the LDC-BAB-103-SP optimal for high-speed, space-constrained BLDC applications requiring NdFeB compatibility and minimal latency.
Availability
MLX90380LDC-BAB-103-SP is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control, and industrial actuator feedback requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAB-103-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, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® Hall-based absolute angle sensing for demanding motor control and safety-critical position feedback applications, emphasizing robustness, programmability, and seamless integration with MCU ADC subsystems.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-103-SP?
The MLX90380LDC-BAB-103-SP is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 responds to the BX field component and OUT2 to BY, enabling true orthogonal sensing ideal for end-of-shaft two-pole magnet setups. This is confirmed by the '103' option code where the second digit '0' denotes X/Y axis per Table 2 of the datasheet.
Does MLX90380LDC-BAB-103-SP support both 3.3V and 5V supply simultaneously?
No - MLX90380LDC-BAB-103-SP supports either 3.3V or 5V operation, not both simultaneously. When using VDD5V (pin 6), VDD3V3 (pin 7) must be left floating; conversely, when using VDD3V3, VDD5V must float. This is explicitly stated in Section 9.1 and Figure 12/13 of the datasheet.
What is the full-scale magnetic range and magnet type compatibility for MLX90380LDC-BAB-103-SP?
The MLX90380LDC-BAB-103-SP is programmed for a 30 mT full-scale magnetic range and NdFeB magnet compatibility, as indicated by the 'BAB' prefix (NdFeB) and '103' suffix (30 mT range, high-bandwidth mode). This ensures optimal sensitivity and temperature compensation for neodymium-based magnets in automotive and industrial motors.
Can MLX90380LDC-BAB-103-SP be reprogrammed in-system?
No - MLX90380LDC-BAB-103-SP is factory-programmed with fixed configuration (X/Y axis, 30 mT range, NdFeB magnet, high-bandwidth mode) and does not support in-system reprogramming. The TEST pin is for factory use only; customer programming requires dedicated PSF tools and is not supported on preprogrammed variants like BAB-103.
What is the maximum rotational speed supported by MLX90380LDC-BAB-103-SP?
The MLX90380LDC-BAB-103-SP supports up to 25,000 rpm, as verified by its 125 kHz Nyquist frequency and 12 µs tracking delay in high-bandwidth mode. At this speed, it maintains 1.6 samples per degree, sufficient for accurate angle reconstruction in high-performance PMSM and BLDC motor control loops.
MLX90380LDC-BAB-103-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-103-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-103-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-103-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-103-SP reliable?
The price and inventory of MLX90380LDC-BAB-103-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-103-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-103-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-103-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-103-SP?
MLX90380LDC-BAB-103-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-103-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-103-SP?
For technical support, including MLX90380LDC-BAB-103-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-103-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-103-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-103-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-103-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-103-SP?
All MLX90380LDC-BAB-103-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-103-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-103-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-103-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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