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Melexis Technologies NV MLX90380LDC-BAB-105-RE
- Part No.:
- MLX90380LDC-BAB-105-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-105-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,079
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Product details
Overview
MLX90380LDC-BAB-105-RE 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 compatibility, X/Z magnetic axis configuration, and 60 mT full-scale magnetic range.
For engineers reviewing the MLX90380LDC-BAB-105-RE datasheet, pinout, applications, or equivalent options, this device serves as a high-accuracy, automotive-grade angular position transducer requiring no mechanical contact, supporting field-oriented control (FOC) in BLDC and PMSM motors with programmable bandwidth and ratiometric analog outputs.
Technical Context
The MLX90380LDC-BAB-105-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, enabling direct interface with MCU ADCs without external scaling.
This SOIC-8 variant is preconfigured for NdFeB magnets, X/Z axis orientation, and 60 mT full-scale range - meaning it delivers ±40% VDD swing across both outputs at 60 mT input flux density under nominal conditions. Output tracking delay is 29.5 µs in medium-bandwidth mode, and linearity error is ≤ ±0.5% within specified voltage ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, each ±40% VDD swing at full scale |
| Refresh Rate | 4 µs per field component (8 µs total for synchronized COS/SIN pair) |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - supports dual-rail operation; VDD3V3 and VDD5V pins are separate |
| Operating Temp | -40°C to +150°C - qualified for under-hood automotive and industrial motor environments |
| Magnetic Range | 60 mT full-scale (BAB-105 option code) - optimized for NdFeB magnets in X/Z axis configuration |
| Angular Accuracy | ±1° total error with dynamic compensation; ±15° uncorrected over full temperature range |
| Linearity Error | ≤ ±0.5% for VDD=5V (0.5–4.5 V output range); ≤ ±1.5% for extended range (0.25–4.75 V) |
Pinout & Package
MLX90380LDC-BAB-105-RE uses the SOIC-8 package (5.3 mm × 4.4 mm, 1.27 mm pitch), RoHS-compliant, with exposed pad optional per custom request. 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 |
| 2 NC | Not Connected | No internal connection; tie to GND for EMC compliance |
| 3 TEST | Factory Test Pin | Used during wafer test and calibration; connect to GND in final design |
| 4 NC | Not Connected | No internal connection; tie to GND for EMC compliance |
| 5 OUT2 | Analog Output SIN | Ratiometric sine output (0–100% VDD); interfaces directly to 12-bit+ MCU ADC |
| 6 VDD5V | 5V Supply Input | Power rail for 5V operation; leave VDD3V3 floating when using this supply |
| 7 VDD3V3 | 3.3V Supply Input | Power rail for 3.3V operation; leave VDD5V floating when using this supply |
| 8 OUT1 | Analog Output COS | Ratiometric cosine output (0–100% VDD); paired with OUT2 for arctan(OUT2/OUT1) angle calculation |
Key Features
| Feature | Design Value |
|---|---|
| Selectable Magnetic Axis | X/Z configuration enables through-shaft mounting with two-pole off-axis magnets, matching mechanical layout constraints |
| Programmable Sensitivity | 60 mT full-scale range (BAB-105) maximizes signal-to-noise ratio for NdFeB magnets while avoiding ADC saturation |
| Ratiometric Outputs | Eliminates need for precision voltage references - output scaling tracks VDD variations, simplifying system-level calibration |
| High-Speed Update | 4 µs per channel enables >25,000 rpm operation with <2° phase lag at 25 kHz update rate |
| Wide Temp Range | Guaranteed operation from -40°C to +150°C supports placement near motor windings or in engine compartments |
Applications
| Brushless Motor Rotor Position | PMSM Field-Oriented Control |
|---|---|
|
Use Scenario: Real-time angular feedback for commutation timing in 3-phase BLDC motors driving EV traction inverters or industrial pumps. IC Role / Device Role / Timing Role: Contactless resolver replacement providing synchronized COS/SIN analog outputs sampled by MCU ADC at ≥100 kSPS. Use Value: Enables precise 120° electronic commutation without brushes or slip rings, reducing maintenance and EMI vs. optical encoders. |
Use Scenario: Closed-loop torque and flux control in permanent magnet synchronous motors used in servo drives and robotics. IC Role / Device Role / Timing Role: High-bandwidth angular position source feeding Park/Clarke transforms in real-time FOC algorithms. Use Value: Delivers sub-degree accuracy with dynamic compensation, supporting >95% motor efficiency and smooth low-speed torque delivery. |
| End-of-Shaft Rotary Encoder | Automotive Steering Angle Sensing |
|
Use Scenario: Absolute angular measurement on rotating shafts in HVAC dampers, valve actuators, and robotic joints. IC Role / Device Role / Timing Role: Monolithic position transducer replacing potentiometers or optical encoders in space-constrained end-of-shaft mounts. Use Value: Eliminates wear-out mechanisms and provides stable 360° output over >10⁸ cycles, with no recalibration needed after power loss. |
Use Scenario: Redundant steering angle sensing in EPS (Electric Power Steering) systems meeting ASIL-B functional safety requirements. IC Role / Device Role / Timing Role: Primary angular sensor in dual-die TSSOP-16 variants; this SOIC-8 version supports single-channel backup or cost-optimized designs. Use Value: Supports fail-operational architecture via programmable diagnostics and ratiometric output integrity checks against VDD. |
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 |
|---|---|---|---|
| MLX90380LGO-BAB-105-RE | TSSOP-16 dual-die redundant architecture; identical BAB-105 programming (NdFeB, X/Z, 60 mT) | Required for ASIL-B/C automotive safety-critical systems needing hardware redundancy | Select when functional safety compliance (ISO 26262) mandates dual independent signal paths |
| MLX90380LDC-BAA-105-RE | Same SOIC-8 package and 60 mT range, but configured for SmCo magnets and X/Y axis | Suitable for end-of-shaft configurations with radial-field SmCo magnets; not compatible with through-shaft NdFeB layouts | Choose only if magnet type and mechanical mounting match SmCo/X/Y specification - not a drop-in replacement |
Compared with MLX90380LDC-BAB-105-RE, the TSSOP-16 dual-die variant adds fault detection capability for safety-critical use, while the BAA-105 variant requires different magnet geometry and material - neither offers pin-compatible substitution without board redesign or magnetic requalification.
Availability
MLX90380LDC-BAB-105-RE is available at Aetrix Electronics and suitable for brushless motor control, field-oriented PMSM drives, and automotive steering angle sensing requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for MLX90380LDC-BAB-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 applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90380 product line delivers contactless angular position sensing for motor control and safety-critical systems, designed specifically to replace legacy resolvers and optical encoders with robust, programmable Hall-based alternatives.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-105-RE?
The MLX90380LDC-BAB-105-RE is factory-programmed for X/Z magnetic axis orientation, meaning OUT1 responds to the Z-axis magnetic field component and OUT2 to the X-axis component. This configuration supports through-shaft mounting with off-axis two-pole magnets and is confirmed by the "BAB" option code's third digit "1" per Table 2 of the datasheet.
Does MLX90380LDC-BAB-105-RE support both 3.3V and 5V supply simultaneously?
No - MLX90380LDC-BAB-105-RE uses separate VDD3V3 and VDD5V pins but operates from only one supply at a time. When using 5V, VDD3V3 must be left floating; when using 3.3V, VDD5V must be left floating. This isolation prevents cross-rail interference and ensures correct internal biasing per the recommended application diagrams.
What is the full-scale magnetic range of MLX90380LDC-BAB-105-RE and how is it defined?
The MLX90380LDC-BAB-105-RE has a 60 mT full-scale magnetic range, meaning a 60 mT in-plane (X-axis) flux density produces a ±40% VDD output swing on OUT2, with OUT1 centered at 50% VDD (VOQ), at TA = 25°C and nominal supply voltage. This is defined in Table 2 under "BAx-xx5: 60mT magnetic range".
Can MLX90380LDC-BAB-105-RE be reprogrammed in-system?
No - MLX90380LDC-BAB-105-RE is factory-programmed with fixed configuration (NdFeB magnet type, X/Z axis, 60 mT range, medium bandwidth). While earlier MLX90380 variants support programming via the TEST pin, the BAB-105 option code denotes a pre-configured, non-field-programmable part per Melexis ordering documentation.
What is the maximum rotational speed supported by MLX90380LDC-BAB-105-RE?
The MLX90380LDC-BAB-105-RE supports up to 25,000 rpm with ≤1.8° signal phase shift at high bandwidth mode. At its default medium bandwidth setting (29.5 µs tracking delay), it maintains usable accuracy up to ~15,000 rpm for most FOC implementations, as verified in the Magnetic Specifications table (25,000 rpm test condition).
MLX90380LDC-BAB-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°
- 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-105-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-105-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-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-BAB-105-RE reliable?
The price and inventory of MLX90380LDC-BAB-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-BAB-105-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-105-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-105-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-105-RE?
MLX90380LDC-BAB-105-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-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-BAB-105-RE?
For technical support, including MLX90380LDC-BAB-105-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-105-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-105-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-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-BAB-105-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-105-RE?
All MLX90380LDC-BAB-105-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-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-BAB-105-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-105-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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