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Melexis Technologies NV MLX90380LDC-BAB-305-RE
- Part No.:
- MLX90380LDC-BAB-305-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-305-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,766
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Product details
Overview
MLX90380LDC-BAB-305-RE from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for absolute angular measurement. It operates with 3.3V or 5V supply, supports -40°C to 150°C ambient, features 4µs output refresh rate, and is factory-programmed for NdFeB magnets, X/Z magnetic axis, and 30mT full-scale range-enabling high-accuracy rotor position sensing in BLDC motor control systems.
For engineers reviewing the MLX90380LDC-BAB-305-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis configuration, real-time tracking delay specs, and validated alternatives for automotive-grade motor control designs.
Technical Context
The MLX90380LDC-BAB-305-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 and deliver synchronized 360° angle data without interpolation.
This variant is preconfigured for X/Z magnetic axis operation with sensitivity mismatch compensation, 30mT full-scale range, and medium bandwidth programming (3.3V supply), yielding 29.5µs tracking delay and ±0.5% linearity over its operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular sampling at up to 250 kSPS for high-speed motor commutation. |
| Operating Supply | 3.3 V or 5 V - Dual-rail support allows direct interface with common MCU ADC reference voltages. |
| Full-Scale Magnetic Range | 30 mT - Factory-set for NdFeB magnets; defines ±40% VDD output swing at TA = 25°C. |
| Magnetic Axis Configuration | X/Z - Outputs correspond to BX (COS) and BZ (SIN); optimized for through-shaft or off-axis two-pole magnet placement. |
| Tracking Delay | 29.5 µs - Medium-bandwidth filter setting ensures stable signal acquisition at ≤15,000 rpm without aliasing. |
| Temperature Range | -40°C to +150°C - Qualified for under-hood automotive and industrial motor drive environments. |
| Linearity Error | ±0.5% - Measured over 360° at VDD = 5 V and output voltage within [0.5 V; 4.5 V]. |
| Total Angular Error (w/ correction) | ±1° - Achievable using dynamic offset/gain compensation in host ECU prior to arctan(OUT2/OUT1). |
Pinout & Package
MLX90380LDC-BAB-305-RE is housed in a RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm), optimized for surface-mount assembly and thermal reliability in high-temperature motor control PCBs.
| 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 improvement per datasheet guidance. |
| 3 - TEST | Test Pin | Factory test access; tie to GND for optimal EMC performance in production designs. |
| 4 - NC | Not Connected | No internal connection; recommended to tie to GND for EMC improvement. |
| 5 - OUT2 | Analog Output SIN | Ratiometric sine output referenced to VDD; used with OUT1 to compute arctan(OUT2/OUT1) for absolute angle. |
| 6 - VDD5V | 5V Supply Input | Active 5V rail; when used, VDD3V3 must remain floating per application diagram requirements. |
| 7 - VDD3V3 | 3.3V Supply Input | Active 3.3V rail; when used, VDD5V must remain floating; enables direct interface with 3.3V MCUs. |
| 8 - OUT1 | Analog Output COS | Ratiometric cosine output referenced to VDD; paired with OUT2 for full 360° angular resolution. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing Architecture | 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 motor topologies without rework or redesign. |
| Ratiometric Analog Outputs | OUT1/OUT2 scale directly with VDD, removing dependency on stable reference voltage and simplifying ADC interfacing. |
| Medium-Bandwidth Filter Setting | 29.5 µs tracking delay balances noise rejection and dynamic response for BLDC applications up to 15,000 rpm. |
| Factory Calibration for NdFeB Magnets | BAB-305 option code guarantees optimized sensitivity, offset, and TCS for neodymium-based rotor magnets. |
| End-of-Line Calibration Option | Enables <±1° total angular error with host ECU compensation-critical for field-oriented control (FOC) precision. |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
|
Use Scenario: Real-time rotor position feedback for six-step commutation in 48V traction inverters. IC Role / Device Role / Timing Role: Absolute 360° angular resolver delivering synchronized COS/SIN signals at 4 µs update rate. Use Value: Enables precise phase alignment with 29.5 µs tracking delay, supporting >12,000 rpm operation without interpolation artifacts. |
Use Scenario: High-fidelity rotor angle input for field-oriented control (FOC) in electric power steering (EPS) systems. IC Role / Device Role / Timing Role: Contactless position sensor providing ratiometric analog outputs to MCU ADC channels. Use Value: ±0.5% linearity and ±1° compensated angular error ensure torque ripple reduction and smooth low-speed response. |
| Electric Powertrain Position Sensing | Industrial Servo Motor Feedback |
|
Use Scenario: Rotor position monitoring in IPM motors for hybrid vehicle e-axles operating at 150°C junction temperature. IC Role / Device Role / Timing Role: High-temp SOIC-8 packaged resolver with X/Z axis orientation for compact through-shaft integration. Use Value: -40°C to +150°C rating and NdFeB-optimized BAB-305 calibration maintain accuracy across full drivetrain thermal envelope. |
Use Scenario: Closed-loop position feedback in CNC spindle drives requiring sub-degree repeatability over 10-year service life. IC Role / Device Role / Timing Role: Analog resolver replacing optical encoders in harsh, oil-contaminated environments. Use Value: Immunity to dust, vibration, and EMI-plus programmable sensitivity-ensures stable 360° output without recalibration. |
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-105-RE | Same SOIC-8 package and NdFeB magnet optimization, but configured for 10mT full-scale range and low-bandwidth (74 µs tracking delay). | Better suited for low-speed, high-precision applications (e.g., robotic joints) where noise immunity outweighs update speed. | Select when angular stability at <5,000 rpm is prioritized over dynamic response. |
| MLX90380LGO-BAB-305-RE | TSSOP-16 dual-die fully redundant package; identical magnetic configuration (X/Z, 30mT, NdFeB) but with duplicated signal paths. | Required for ASIL-D functional safety compliance in automotive EPS or brake-by-wire systems. | Choose when ISO 26262 ASIL-D fault tolerance and redundancy are mandated-not for standard BLDC use. |
Compared with MLX90380LDC-BAB-105-RE, the MLX90380LDC-BAB-305-RE delivers 2.5× faster tracking for high-RPM motors; versus MLX90380LGO-BAB-305-RE, it offers cost and board space savings where redundancy is not required.
Availability
MLX90380LDC-BAB-305-RE is available at Aetrix Electronics and suitable for brushless DC motor control, permanent magnet synchronous motor feedback, and electric powertrain position sensing requiring stable component supply across automotive and industrial production cycles.
Supply support for MLX90380LDC-BAB-305-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 Triaxis® contactless angular position sensing for demanding motor control applications, designed specifically to replace resolvers and optical encoders in harsh thermal and EMI environments.
FAQ
What magnetic axis configuration is implemented in MLX90380LDC-BAB-305-RE?
The MLX90380LDC-BAB-305-RE is factory-programmed for X/Z magnetic axis operation, meaning OUT1 corresponds to the X-axis magnetic field component (COS) and OUT2 to the Z-axis component (SIN). This configuration supports through-shaft and off-axis two-pole magnet placements, as confirmed by the BAB-305 option code per Melexis ordering documentation.
Does MLX90380LDC-BAB-305-RE support both 3.3V and 5V supply rails simultaneously?
No-MLX90380LDC-BAB-305-RE supports either 3.3V or 5V operation, but not both concurrently. When using VDD3V3 (pin 7), VDD5V (pin 6) must be left floating; conversely, when using VDD5V, VDD3V3 must float. This isolation prevents supply contention and is enforced in all recommended application diagrams.
What is the tracking delay of MLX90380LDC-BAB-305-RE and how is it determined?
The MLX90380LDC-BAB-305-RE has a tracking delay of 29.5 µs, corresponding to its medium-bandwidth programming setting (3.3V supply, BAB-305 option code). This value represents the time between a rotating magnetic stimulus and the resulting change on both OUT1 and OUT2, including sample-and-hold filter latency as defined in Section 11 of the datasheet.
Can MLX90380LDC-BAB-305-RE be used with ferrite or SmCo magnets?
No-MLX90380LDC-BAB-305-RE is specifically calibrated for NdFeB (neodymium) magnets, as indicated by the "BAB" prefix in its option code. Using ferrite (BAC) or SmCo (BAA) magnets would result in significant sensitivity mismatch and degraded angular accuracy; Melexis specifies distinct option codes for each magnet type.
Is end-of-line calibration available for MLX90380LDC-BAB-305-RE?
Yes-end-of-line calibration is an optional factory service for MLX90380LDC-BAB-305-RE that improves total angular error to ±1° when combined with host ECU dynamic compensation. This calibration is performed after packaging and accounts for system-level mechanical tolerances, enabling higher FOC precision in production motor assemblies.
MLX90380LDC-BAB-305-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-305-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-305-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-305-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-305-RE reliable?
The price and inventory of MLX90380LDC-BAB-305-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-305-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-305-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-305-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-305-RE?
MLX90380LDC-BAB-305-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-305-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-305-RE?
For technical support, including MLX90380LDC-BAB-305-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-305-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-305-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-305-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-305-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-305-RE?
All MLX90380LDC-BAB-305-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-305-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-305-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-305-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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