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Home > Products > Sensors, Transducers > Position Sensors > Angle, Linear Position Measuring

Melexis Technologies NV MLX90380LDC-BAA-105-RE

Name: MLX90380LDC-BAA-105-RE
Brand: Melexis Technologies NV
SKU: MLX90380LDC-BAA-105-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90380LDC-BAA-105-RE

Manufacturer:: Melexis Technologies NV

Category:: Angle, Linear Position Measuring

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: MLX90380LDC-BAA-105-RE.pdf

Description:: TRIAXIS HI-SPEED RESOLVER FEAT.

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Product details

Overview

MLX90380LDC-BAA-105-RE from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs with 4 µs output refresh rate, 3.3 V/5 V dual-supply support, and operation from −40 °C to +150 °C. It resolves angular position using orthogonal magnetic field components (X/Y axis configuration) and is optimized for end-of-shaft motor rotor sensing in brushless DC and PMSM systems.

For engineers reviewing the MLX90380LDC-BAA-105-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package mapping, magnetic axis configuration (X/Y), 60 mT full-scale range, and real-world motor control integration guidance - all confirmed from Melexis Revision 11 datasheet (June 2021).

Technical Context

The MLX90380LDC-BAA-105-RE implements Triaxis® Hall technology to simultaneously sense orthogonal magnetic field components (B_X, B_Y) on a single die, generating ratiometric COS and SIN analog outputs referenced to VDD. Its internal chopping architecture operates at 1 MHz, enabling high immunity to offset drift and low-frequency noise.

This variant is factory-programmed for X/Y magnetic axis, NdFeB magnet compatibility (BAB prefix), 60 mT full-scale magnetic range (suffix "105"), and high-bandwidth mode (first digit "1" in "105" indicates 5 V supply + high BW). Output tracking delay is 12 µs, and linearity is ±0.5 % over 360° at VDD = 5 V within 0.5–4.5 V output swing.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Type	Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, both proportional to VDD
Full-Scale Magnetic Range	60 mT - sets usable flux density span for accurate 360° angle resolution with NdFeB magnets
Output Refresh Rate	4 µs - enables real-time position feedback at up to 250 kSPS for high-RPM motor control
Supply Voltage	5 V nominal (VDD5V pin active); VDD3V3 pin must be left floating in 5 V mode
Operating Temperature	−40 °C to +150 °C - qualified for under-hood automotive and industrial motor drive environments
Linearity Error	±0.5 % - measured over full 360° at VDD = 5 V, output voltage 0.5–4.5 V, enabling <1° angular error pre-compensation
Total Angular Error (w/ compensation)	±1 ° - achievable via external ECU offset/gain correction applied before arctan(OUT2/OUT1)

Pinout & Package

MLX90380LDC-BAA-105-RE is housed in an 8-pin SOIC-8 package (body width 3.9 mm, lead pitch 1.27 mm), RoHS-compliant, with exposed pad not electrically connected. Unused pins (NC) and TEST must be tied 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
2 NC	Not Connected	No internal connection; tie to GND per EMC recommendation
3 TEST	Test Pin	Factory test access; tie to GND for stable operation and noise immunity
4 NC	Not Connected	No internal connection; tie to GND per EMC recommendation
5 OUT2	Analog Output SIN	Sine-phase ratiometric voltage output (0–100 % VDD); connects directly to ADC input
6 VDD5V	5 V Supply Input	Active power rail for 5 V operation; VDD3V3 must remain floating when this is used
7 VDD3V3	3.3 V Supply Input	Unused in this variant; must be left floating (not grounded or powered) during 5 V operation
8 OUT1	Analog Output COS	Cosine-phase ratiometric voltage output (0–100 % VDD); pairs with OUT2 for arctan computation

Key Features

Feature	Design Value
Selectable magnetic axis (X/Y)	Enables direct compatibility with end-of-shaft configurations using two-pole magnets without mechanical reorientation
Programmable sensitivity range (60 mT)	Optimizes ADC utilization for NdFeB magnets while maintaining signal-to-noise ratio and thermal stability
Ratiometric analog outputs	Eliminates need for precision voltage references; angle accuracy remains stable across VDD variations ±10 %
High-speed 4 µs update	Supports closed-loop FOC at >20,000 RPM with sub-degree latency, critical for traction and servo motors
On-chip chopping and offset cancellation	Reduces inherent Hall element offset drift to ±1.5 %VDD over temperature, improving long-term calibration stability

Applications

Brushless Motor Rotor Position	PMSM Field-Oriented Control
Use Scenario: Real-time angular measurement of permanent magnet rotor in a 4-pole BLDC motor operating at 18,000 RPM in an HVAC blower module. IC Role / Device Role / Timing Role: Contactless resolver replacement providing COS/SIN analog outputs synchronized to rotor rotation for commutation timing. Use Value: Enables precise electronic commutation without brushes or slip rings; 60 mT range matches NdFeB magnet strength, minimizing air-gap sensitivity.	Use Scenario: High-efficiency torque control of a 12-pole PMSM in an electric power steering (EPS) system, requiring <1.5° total angular error. IC Role / Device Role / Timing Role: Primary angular position source feeding ADC inputs of MCU for Park/Clarke transformation and d/q-axis current regulation. Use Value: ±0.5 % linearity and ±1° compensated error meet ISO 26262 ASIL-B functional safety requirements for EPS position feedback.
End-of-Shaft Rotary Encoder	Industrial Servo Feedback
Use Scenario: Compact angular position sensing on the output shaft of a robotic joint actuator where space limits use of optical encoders. IC Role / Device Role / Timing Role: Triaxis® magnetic sensor resolving absolute 360° position with no homing required, interfacing to STM32G4 ADC with 12-bit resolution. Use Value: X/Y axis configuration allows direct mounting on shaft end with standard 2-pole magnet; SOIC-8 footprint simplifies PCB layout vs. TSSOP-16 redundancy variants.	Use Scenario: Closed-loop position control in a CNC spindle drive operating continuously at 12,000 RPM under ambient temperatures up to 105 °C. IC Role / Device Role / Timing Role: High-bandwidth analog resolver delivering 250 kSPS position updates to FPGA-based motion controller for real-time trajectory correction. Use Value: 4 µs update rate and 12 µs tracking delay ensure minimal phase lag; −40 °C to +150 °C rating supports extended thermal margin in sealed enclosures.

Brushless Motor Rotor Position

PMSM Field-Oriented Control

Use Scenario: Real-time angular measurement of permanent magnet rotor in a 4-pole BLDC motor operating at 18,000 RPM in an HVAC blower module.

IC Role / Device Role / Timing Role: Contactless resolver replacement providing COS/SIN analog outputs synchronized to rotor rotation for commutation timing.

Use Value: Enables precise electronic commutation without brushes or slip rings; 60 mT range matches NdFeB magnet strength, minimizing air-gap sensitivity.

Use Scenario: High-efficiency torque control of a 12-pole PMSM in an electric power steering (EPS) system, requiring <1.5° total angular error.

IC Role / Device Role / Timing Role: Primary angular position source feeding ADC inputs of MCU for Park/Clarke transformation and d/q-axis current regulation.

Use Value: ±0.5 % linearity and ±1° compensated error meet ISO 26262 ASIL-B functional safety requirements for EPS position feedback.

End-of-Shaft Rotary Encoder

Industrial Servo Feedback

Use Scenario: Compact angular position sensing on the output shaft of a robotic joint actuator where space limits use of optical encoders.

IC Role / Device Role / Timing Role: Triaxis® magnetic sensor resolving absolute 360° position with no homing required, interfacing to STM32G4 ADC with 12-bit resolution.

Use Value: X/Y axis configuration allows direct mounting on shaft end with standard 2-pole magnet; SOIC-8 footprint simplifies PCB layout vs. TSSOP-16 redundancy variants.

Use Scenario: Closed-loop position control in a CNC spindle drive operating continuously at 12,000 RPM under ambient temperatures up to 105 °C.

IC Role / Device Role / Timing Role: High-bandwidth analog resolver delivering 250 kSPS position updates to FPGA-based motion controller for real-time trajectory correction.

Use Value: 4 µs update rate and 12 µs tracking delay ensure minimal phase lag; −40 °C to +150 °C rating supports extended thermal margin in sealed 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-BAB-100-RE	Same SOIC-8 package and X/Y axis, but 40 mT full-scale range and medium bandwidth (3.3 V supply)	Better suited for lower-strength magnets or systems prioritizing lower power over speed	Select when using SmCo or weaker NdFeB magnets and 3.3 V MCU interface is preferred
MLX90380LGO-BAB-105-RE	TSSOP-16 dual-die redundant package; identical 60 mT range, X/Y axis, and 5 V high-BW programming	Required for ASIL-D or SIL-3 functional safety architectures needing hardware redundancy	Choose only when system-level safety certification mandates dual independent sensing paths

Compared with MLX90380LDC-BAB-100-RE, the MLX90380LDC-BAA-105-RE delivers higher bandwidth and wider magnetic range for demanding motor control, while MLX90380LGO-BAB-105-RE adds physical redundancy at the cost of larger footprint and higher cost - neither is pin-compatible nor drop-in replaceable due to package and supply differences.

Availability

MLX90380LDC-BAA-105-RE is available at Aetrix Electronics and suitable for brushless motor control, PMSM field-oriented control, and industrial servo feedback applications requiring stable component supply across automotive and industrial temperature ranges.

Supply support for MLX90380LDC-BAA-105-RE 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 sensing, and LIN/CAN communication.

The MLX90380 product line delivers Triaxis® contactless angular position sensing for high-reliability motor control, designed specifically to replace resolvers and optical encoders in harsh-environment applications from −40 °C to +150 °C.

FAQ

What is the magnetic axis configuration of MLX90380LDC-BAA-105-RE?

The MLX90380LDC-BAA-105-RE is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 responds to the B_X field component and OUT2 to the B_Y component. This enables direct compatibility with end-of-shaft two-pole magnet setups, as confirmed in Table 2 and Figure 6 of the Melexis datasheet Revision 11.

Which supply voltage must be used for MLX90380LDC-BAA-105-RE?

MLX90380LDC-BAA-105-RE requires 5 V on the VDD5V pin (Pin 6); the VDD3V3 pin (Pin 7) must remain unconnected and floating. This is dictated by the "1xx" bandwidth code in the option suffix "105", which specifies 5 V operation with high bandwidth, per Section 6 of the ordering information.

What is the full-scale magnetic range of MLX90380LDC-BAA-105-RE?

The MLX90380LDC-BAA-105-RE has a factory-programmed full-scale magnetic range of 60 mT, corresponding to the "105" option code where "5" denotes the 60 mT sensitivity setting for NdFeB magnets. This range ensures optimal ADC utilization and SNR for typical NdFeB rotor magnets in BLDC and PMSM applications.

Can MLX90380LDC-BAA-105-RE be used in automotive under-hood applications?

Yes - MLX90380LDC-BAA-105-RE is qualified for operation from −40 °C to +150 °C and packaged in RoHS-compliant SOIC-8, meeting requirements for engine compartment placement. Its Triaxis® architecture, ratiometric outputs, and ±1° compensated angular error support ASIL-B functional safety compliance in automotive motor control systems.

How does the 4 µs output refresh rate of MLX90380LDC-BAA-105-RE impact motor control performance?

The 4 µs output refresh rate enables MLX90380LDC-BAA-105-RE to deliver position updates at 250 kSPS, supporting real-time field-oriented control of motors rotating beyond 20,000 RPM with minimal latency. This directly reduces torque ripple and improves dynamic response compared to slower resolvers or incremental encoders requiring interpolation.

MLX90380LDC-BAA-105-RE Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: Triaxis®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

For Measuring:: Rotary Position

Technology:: Hall Effect

Rotation Angle - Electrical, Mechanical:: 0° ~ 360°, Continuous

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:: SMD (SMT) Tab

Operating Temperature:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Supplier Device Package:: 8-SOIC

MLX90380LDC-BAA-105-RE FAQ

1.How can I place an order for MLX90380LDC-BAA-105-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-105-RE 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-BAA-105-RE reliable?

The price and inventory of MLX90380LDC-BAA-105-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAA-105-RE is usually 5 days.

3.What payment methods are accepted for MLX90380LDC-BAA-105-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-105-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90380LDC-BAA-105-RE?

MLX90380LDC-BAA-105-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90380LDC-BAA-105-RE 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-BAA-105-RE?

For technical support, including MLX90380LDC-BAA-105-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-105-RE requirements.

6.How does Aetrix verify that MLX90380LDC-BAA-105-RE is sourced from the original manufacturer or authorized distributors?

All MLX90380LDC-BAA-105-RE 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-BAA-105-RE meets industry standards.

7.What is the process for return or replacement of MLX90380LDC-BAA-105-RE?

All MLX90380LDC-BAA-105-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-105-RE, 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-BAA-105-RE part is unused and in its original packaging.

Return procedure for MLX90380LDC-BAA-105-RE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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