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Melexis Technologies NV MLX90380LDC-BAB-045-SP
- Part No.:
- MLX90380LDC-BAB-045-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-045-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,615
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Product details
Overview
MLX90380LDC-BAB-045-SP from Melexis is a monolithic Triaxis® Hall-based resolver IC delivering true 360° absolute rotary position sensing via ratiometric sine/cosine analog outputs. 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, X/Z magnetic axis configuration, and 60 mT full-scale magnetic range. It enables high-accuracy angular measurement in brushless motor rotor position feedback.
For engineers reviewing the MLX90380LDC-BAB-045-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package details, real-world motor control use cases, and validated alternative options - all grounded in Melexis Revision 11 datasheet specifications.
Technical Context
The MLX90380LDC-BAB-045-SP implements Triaxis® technology to simultaneously sense orthogonal (X/Z) magnetic field components using integrated Hall elements and on-chip signal conditioning. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, with programmable bandwidth and factory-set sensitivity of 0.66 %VDD/mT for 60 mT range under NdFeB magnet excitation.
This variant uses the SOIC-8 package with dedicated VDD3V3 and VDD5V supply pins, enabling flexible power architecture. The X/Z axis configuration supports through-shaft mounting where magnetic flux is applied along Z (axial) and X (radial) directions, with sensitivity mismatch compensation enabled per datasheet Section 8.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog sine/cosine outputs referenced to VDD; enables direct ADC interfacing without external reference voltage. |
| Full-Scale Magnetic Range | 60 mT - optimized for NdFeB magnets in high-field end-of-shaft or through-shaft configurations. |
| Sensitivity | 0.66 %VDD/mT - delivers ±39.6% VDD output swing at 60 mT, maximizing dynamic range for 12-bit+ MCU ADCs. |
| Output Refresh Rate | 4 µs - supports real-time position tracking up to 25,000 RPM with <74 µs total tracking delay in high-bandwidth mode. |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments. |
| Supply Voltage Options | 3.3V (VDD3V3) or 5V (VDD5V) - dual-supply pin architecture allows system-level voltage selection without redesign. |
| Total Angular Error | ±1° with dynamic compensation - achievable via off-chip arctan(OUT2/OUT1) with offset/gain correction algorithms. |
Pinout & Package
MLX90380LDC-BAB-045-SP is housed in an 8-pin SOIC package (JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and rated for automotive-grade thermal cycling.
| 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 | No internal connection; recommended to tie to GND for EMC integrity per datasheet Section 9.1. |
| 3 TEST | Test Pin | Factory test access; tie to GND for optimal EMC performance in production systems. |
| 4 NC | Not Connected | No internal connection; recommended to tie to GND for EMC integrity. |
| 5 OUT2 | Analog Output SIN | Sine waveform output; ratiometric to VDD, used with OUT1 for arctangent angle calculation. |
| 6 VDD5V | 5V Supply Input | Active 5V supply rail; when used, VDD3V3 must remain floating per datasheet Figure 13. |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V supply rail; when used, VDD5V must remain floating per datasheet Figure 12. |
| 8 OUT1 | Analog Output COS | Cosine waveform output; ratiometric to VDD, paired with OUT2 for full 360° angular resolution. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field detection eliminates need for external flux concentrators or multi-die assemblies. |
| Programmable Magnetic Axis | X/Z configuration enables mechanical flexibility for through-shaft applications with axial + radial field coupling. |
| Factory-Set Sensitivity | 0.66 %VDD/mT calibrated for 60 mT range with NdFeB magnets - reduces system-level calibration effort. |
| Ratiometric Outputs | Output voltages scale directly with VDD, eliminating dependency on stable external voltage references. |
| High-Speed Update | 4 µs output period supports closed-loop FOC motor control at >20 kHz PWM frequencies with minimal latency. |
Applications
| Brushless Motor Rotor Position | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Real-time angular measurement of permanent magnet rotor in PMSM or BLDC motors for field-oriented control. IC Role / Device Role / Timing Role: Resolver replacement delivering analog sine/cosine signals to MCU ADC for arctangent-based angle computation. Use Value: Enables <±1° total angular error with dynamic compensation, supporting high-efficiency torque control at 25,000 RPM. |
Use Scenario: Absolute shaft angle sensing in EPS column-assist or pinion-assist modules operating under hood temperature extremes. IC Role / Device Role / Timing Role: Primary position sensor feeding steering angle and torque estimation algorithms in ASIL-B safety-critical ECUs. Use Value: -40°C to 150°C operation and AEC-Q100 qualification ensure reliability across vehicle lifetime and environmental stress. |
| Industrial Servo Motor Feedback | Robot Joint Actuation |
|
Use Scenario: High-precision angular feedback in industrial servo drives requiring 12-bit+ resolution and sub-degree linearity. IC Role / Device Role / Timing Role: Contactless position transducer replacing resolvers or optical encoders in compact, EMI-noisy factory environments. Use Value: SOIC-8 footprint and 4 µs update rate support tight control loops without external interpolation or oversampling. |
Use Scenario: Compact joint-angle sensing in collaborative robots where space, weight, and thermal robustness are critical. IC Role / Device Role / Timing Role: Embedded position sensor co-located with motor and gearbox, providing real-time feedback for torque and velocity control. Use Value: NdFeB-optimized 60 mT range and X/Z axis configuration allow integration into narrow through-shaft mechanical layouts. |
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-025-SP | Same SOIC-8 package and NdFeB magnet option, but 30 mT full-scale range and 1.33 %VDD/mT sensitivity. | Better suited for lower-field magnets or tighter mechanical air gaps where 60 mT would saturate output. | Select when magnetic circuit yields <35 mT peak flux density at sensor location; retains identical pinout and programming interface. |
| MLX90380LGO-BAB-045-SP | TSSOP-16 dual-die redundant package; identical magnetic specs (NdFeB, X/Z, 60 mT) but with functional safety support. | Required for ASIL-D or ISO 26262-compliant systems needing hardware redundancy and diagnostic coverage. | Choose when functional safety certification is mandatory; requires PCB layout change due to 16-pin TSSOP footprint. |
Compared with MLX90380LDC-BAB-045-SP, the -025 variant offers higher sensitivity for low-field operation while maintaining drop-in compatibility, whereas the LGO-BAB-045 provides hardware redundancy at the cost of larger footprint and higher BOM cost - both preserve identical magnetic axis and NdFeB optimization.
Availability
MLX90380LDC-BAB-045-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAB-045-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 leadership in Hall-effect and infrared sensing technologies.
The MLX90380 belongs to Melexis' Triaxis® resolver product line, designed specifically for high-accuracy, contactless absolute angular position sensing in demanding motor control and steering systems.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-045-SP?
The MLX90380LDC-BAB-045-SP is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 responds to the X-axis (radial) field component and OUT2 to the Z-axis (axial) component. This supports through-shaft mounting with two-pole magnets, and sensitivity mismatch is compensated per datasheet Section 8.2.
Which magnet type is MLX90380LDC-BAB-045-SP optimized for?
MLX90380LDC-BAB-045-SP is optimized for NdFeB (Neodymium Iron Boron) magnets, as indicated by the "BAB" option code. Its sensitivity of 0.66 %VDD/mT and 60 mT full-scale range are calibrated for the flux density profile and temperature coefficient of NdFeB materials.
Can MLX90380LDC-BAB-045-SP operate from both 3.3V and 5V supplies?
Yes, MLX90380LDC-BAB-045-SP supports dual-supply operation via separate VDD3V3 and VDD5V pins. Only one supply should be active at a time: when using 3.3V, VDD5V must be left floating; when using 5V, VDD3V3 must be left floating, per datasheet Sections 9.1 and 13.1.
What is the output update timing behavior of MLX90380LDC-BAB-045-SP?
MLX90380LDC-BAB-045-SP delivers synchronized sine and cosine outputs every 4 µs (250 kSPS). Each field component is sampled sequentially, resulting in a total tracking delay of ≤74 µs in high-bandwidth mode - critical for fast-response motor control loops.
Is MLX90380LDC-BAB-045-SP AEC-Q100 qualified?
Yes, MLX90380LDC-BAB-045-SP is AEC-Q100 qualified for Grade 0 (-40°C to +150°C), with documented ESD ratings of 2 kV HBM (SOIC-8) and compliance to automotive reliability stress tests - confirmed in datasheet Table 6 and Section 15.
MLX90380LDC-BAB-045-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-045-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-045-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-045-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-045-SP reliable?
The price and inventory of MLX90380LDC-BAB-045-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-045-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-045-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-045-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-045-SP?
MLX90380LDC-BAB-045-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-045-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-045-SP?
For technical support, including MLX90380LDC-BAB-045-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-045-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-045-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-045-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-045-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-045-SP?
All MLX90380LDC-BAB-045-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-045-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-045-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-045-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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