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Melexis Technologies NV MLX90380LDC-BAA-000-RE
- Part No.:
- MLX90380LDC-BAA-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAA-000-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,249
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Product details
Overview
MLX90380LDC-BAA-000-RE from Melexis is a monolithic Triaxis® Hall-based resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs. It operates at 3.3V supply, supports X/Y magnetic axis configuration, uses SmCo magnet compatibility, and achieves 4µs output refresh rate with ±0.5% linearity over -40°C to 150°C for end-of-shaft rotary position feedback in BLDC motor control.
For engineers reviewing the MLX90380LDC-BAA-000-RE datasheet, pinout, applications, or equivalent options, this page delivers verified SOIC-8 package details, confirmed 3.3V low-bandwidth operation, SmCo magnet calibration, X/Y axis sensitivity matching, and real-world motor control integration guidance - all traceable to Melexis Revision 11 datasheet (June 2021).
Technical Context
The MLX90380LDC-BAA-000-RE 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 ratiometric to VDD3V3 and deliver true 360° angle resolution without interpolation.
This variant is factory-programmed for 40mT full-scale magnetic range, low bandwidth filter setting (tracking delay 85.5µs), and SmCo magnet temperature coefficient compensation (TCS ≈ 350 ppm/°C). It requires no external programming during operation and interfaces directly to MCU ADC inputs with 5–95% VDD output swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Supply | 3.3V only (VDD3V3 active; VDD5V must be floating) |
| Output Refresh Rate | 4µs per field component (8µs full COS+SIN update) |
| Magnetic Axis | X/Y configuration - equal sensitivity on both axes for end-of-shaft two-pole magnet use |
| Full-Scale Range | 40mT in-plane flux density yielding ±40% VDD output swing at TA=25°C |
| Linearity Error | ±0.5% over 3.3V supply and 0.33V–2.97V output range |
| Temperature Range | -40°C to +150°C continuous operation - qualified for automotive powertrain and industrial motor environments |
| Output Type | Ratiometric analog: OUT1 = COS, OUT2 = SIN, both referenced to same VDD3V3 rail |
Pinout & Package
MLX90380LDC-BAA-000-RE is housed in an 8-pin SOIC package (JEDEC MS-012AC) with 1.27mm pitch, 5.3mm × 4.4mm body, and exposed pad not connected internally. Unused pins (2, 4) and TEST pin (3) must be tied to VSS for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry and outputs |
| 2 | NC | No internal connection - must be externally tied to VSS |
| 3 | TEST | Factory test access - must be externally tied to VSS in application |
| 4 | NC | No internal connection - must be externally tied to VSS |
| 5 | OUT2 | Analog SIN output - ratiometric to VDD3V3, 5–95% VDD swing |
| 6 | VDD5V | 5V supply input - must remain floating when using 3.3V operation |
| 7 | VDD3V3 | 3.3V supply input - primary power rail; powers internal regulator and outputs |
| 8 | OUT1 | Analog COS output - ratiometric to VDD3V3, 5–95% VDD swing |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y field measurement using integrated vertical+planar Hall elements - enables true 360° absolute angle without external magnets or gears |
| Programmable Magnetic Axis | X/Y configuration selected by option code BAA - optimized for end-of-shaft two-pole magnet mounting with matched sensitivity on both axes |
| SmCo Magnet Calibration | Factory-programmed TCS ≈ 350 ppm/°C - compensates SmCo magnet flux decay over temperature, reducing angular error drift across -40°C to 150°C |
| Ratiometric Analog Outputs | OUT1 (COS) and OUT2 (SIN) scale linearly with VDD3V3 - eliminates need for precision voltage references in MCU ADC interface |
| Low-Bandwidth Filter Mode | 85.5µs tracking delay - suppresses high-frequency noise while maintaining sufficient dynamic response for ≤10,000 rpm motor applications |
Applications
| Brushless DC Motor Rotor Position | Electric Power Steering (EPS) Angle Feedback |
|---|---|
|
Use Scenario: Real-time rotor angular position detection in 3-phase BLDC motors for commutation timing and field-oriented control. IC Role / Device Role / Timing Role: Resolver IC providing synchronized COS/SIN analog outputs to MCU ADC for arctan-based angle computation. Use Value: Enables precise 360° absolute position with ±0.5% linearity at 3.3V supply, supporting high-efficiency motor control up to 10,000 rpm under 150°C under-hood conditions. |
Use Scenario: Contactless steering column angle measurement in automotive EPS systems requiring ASIL-B functional safety compliance. IC Role / Device Role / Timing Role: Primary angular sensor delivering ratiometric analog signals immune to EMI and mechanical wear in safety-critical torque assist loops. Use Value: Delivers stable X/Y-axis output with SmCo magnet temperature compensation, meeting -40°C to 150°C ambient requirements and enabling dynamic offset/gain correction in ECU. |
| Industrial Servo Motor Feedback | Rotary Valve Position Monitoring |
|
Use Scenario: High-reliability angular feedback in industrial servo drives where encoder failure modes must be avoided. IC Role / Device Role / Timing Role: Non-contact resolver replacing optical encoders in dusty, humid, or vibration-prone factory automation environments. Use Value: SOIC-8 package enables compact PCB layout; 4µs output refresh supports fast current-loop control cycles; ratiometric outputs simplify ADC scaling in PLC-connected drives. |
Use Scenario: Absolute angular monitoring of quarter-turn or multi-turn rotary valves in process control systems (e.g., oil & gas, water treatment). IC Role / Device Role / Timing Role: Contactless position transducer interfacing to analog input modules in distributed control systems (DCS) or RTUs. Use Value: 40mT full-scale range matches typical SmCo magnet assemblies used in valve actuators; low-bandwidth mode rejects mechanical vibration noise without sacrificing position accuracy. |
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-000-RE | Uses NdFeB magnet (TCS ≈ 1100 ppm/°C) instead of SmCo; otherwise identical SOIC-8, 3.3V, X/Y, 40mT configuration | Higher sensitivity drift over temperature - requires tighter thermal management or more aggressive software compensation in >100°C environments | Select when NdFeB magnets are already standardized in the mechanical assembly and cost is prioritized over thermal stability. |
| MLX90380LGO-BAA-000-RE | TSSOP-16 dual-die fully redundant package; same SmCo magnet, X/Y axis, 3.3V, 40mT spec - but includes independent die A/B outputs and separate supplies | Designed for ASIL-D or SIL-3 safety-critical systems requiring hardware redundancy - adds PCB area, routing complexity, and dual ADC channels | Select only when functional safety certification mandates hardware redundancy; not drop-in compatible due to pin count, footprint, and dual-supply requirements. |
Compared with MLX90380LDC-BAB-000-RE and MLX90380LGO-BAA-000-RE, the MLX90380LDC-BAA-000-RE provides optimal thermal stability for SmCo-based designs in high-temperature motor applications without redundancy overhead, making it the preferred choice for cost-sensitive, single-channel 3.3V industrial and automotive subsystems.
Availability
MLX90380LDC-BAA-000-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering systems, and industrial servo feedback requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LDC-BAA-000-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 sensor solutions for automotive and industrial markets, with core expertise in Hall-effect, IR, and pressure sensing technologies.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for demanding motor control and safety-critical applications, designed specifically to replace resolvers and optical encoders with robust, compact, and programmable analog alternatives.
FAQ
What is the correct power supply configuration for MLX90380LDC-BAA-000-RE?
The MLX90380LDC-BAA-000-RE must be powered exclusively from the VDD3V3 pin at 3.3V; the VDD5V pin must remain unconnected and floating. This is enforced by the "0xx" suffix in its option code BAA-000, which designates 3.3V low-bandwidth operation. Applying voltage to VDD5V while using VDD3V3 violates the recommended application diagram and may cause undefined behavior in the MLX90380LDC-BAA-000-RE.
Does MLX90380LDC-BAA-000-RE require external programming for X/Y axis operation?
No. The MLX90380LDC-BAA-000-RE is factory-programmed for X/Y magnetic axis configuration, SmCo magnet compensation, 40mT full-scale range, and low-bandwidth filtering. All settings are permanently stored in on-chip EEPROM. No external programming via TEST pin or connector is needed during system operation - the MLX90380LDC-BAA-000-RE functions immediately upon valid 3.3V power application.
What is the maximum rotational speed supported by MLX90380LDC-BAA-000-RE?
The MLX90380LDC-BAA-000-RE supports up to 25,000 rpm with high-bandwidth programming, but the MLX90380LDC-BAA-000-RE variant - configured for low bandwidth - is optimized for ≤10,000 rpm applications. Its 85.5µs tracking delay ensures stable output under mechanical vibration and thermal transients common in BLDC motors and EPS systems where the MLX90380LDC-BAA-000-RE is deployed.
How does the ratiometric output of MLX90380LDC-BAA-000-RE simplify ADC interfacing?
The MLX90380LDC-BAA-000-RE delivers OUT1 (COS) and OUT2 (SIN) as percentages of VDD3V3 (5–95% VDD), so their full-scale range automatically scales with supply variation. When the MCU's ADC reference matches VDD3V3 - as in most 3.3V microcontrollers - no additional voltage reference or gain calibration is required. This inherent ratiometry reduces BOM cost and improves system-level accuracy in the MLX90380LDC-BAA-000-RE implementation.
Can unused pins 2 and 4 be left floating on MLX90380LDC-BAA-000-RE?
No. Pins 2 (NC) and 4 (NC) on the MLX90380LDC-BAA-000-RE must be externally connected to VSS (ground) per Melexis datasheet Section 9.1. Leaving them floating degrades EMC performance and may introduce noise coupling into the analog outputs. The TEST pin (3) also requires VSS connection - all three pins serve as shield anchors in the SOIC-8 layout of the MLX90380LDC-BAA-000-RE.
MLX90380LDC-BAA-000-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°
- 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-BAA-000-RE FAQ
1.How can I place an order for MLX90380LDC-BAA-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-000-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-000-RE reliable?
The price and inventory of MLX90380LDC-BAA-000-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-000-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAA-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAA-000-RE?
MLX90380LDC-BAA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAA-000-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-000-RE?
For technical support, including MLX90380LDC-BAA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-000-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAA-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAA-000-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-000-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAA-000-RE?
All MLX90380LDC-BAA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-000-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-000-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAA-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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