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Melexis Technologies NV MLX90380LDC-BAB-506-RE
- Part No.:
- MLX90380LDC-BAB-506-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-506-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,666
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Product details
Overview
MLX90380LDC-BAB-506-RE from Melexis is a monolithic Triaxis® Hall-based contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for absolute angular measurement. It operates from 3.3 V or 5 V supply, supports -40°C to 150°C ambient, features 4 µs output refresh rate, and is factory-programmed for NdFeB magnet compatibility, 70 mT full-scale magnetic range, and X/Z magnetic axis with sensitivity mismatch. It serves as the core resolver replacement in high-reliability motor control systems.
For engineers reviewing the MLX90380LDC-BAB-506-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package mapping, real-world angular error performance, magnetic axis behavior, and validated alternative options for automotive and industrial BLDC/PMSM position feedback.
Technical Context
The MLX90380LDC-BAB-506-RE implements Triaxis® Hall sensing architecture to simultaneously measure 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 ±40% VDD swing at full scale under specified flux density.
This variant is preconfigured for X/Z magnetic axis with sensitivity mismatch (Bz/Bx = 2:1), NdFeB magnet optimization, 70 mT full-scale range, and high-bandwidth operation (4 µs update period). Programming is performed via dedicated pins during power-up, enabling customer-tuned filter bandwidth and offset calibration without external EEPROM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Operating Supply | 3.3 V or 5 V - Dual-rail support allows direct interface with common MCU ADC reference voltages; VDD3V3 and VDD5V pins are separate and must be used selectively. |
| Full-Scale Magnetic Range | 70 mT - Factory-programmed sensitivity (BAB-506) optimized for NdFeB magnets; delivers ±40% VDD output swing at Bx = 70 mT, Bz = 35 mT (due to Z/Y mismatch). |
| Temperature Range | -40°C to +150°C - Qualified for under-hood automotive and industrial motor drive environments; junction temperature limit is 165°C. |
| Angular Accuracy | ±1° total error with dynamic compensation - Achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction; uncorrected error is ±10° at 25°C, ±15° over full temperature range. |
| Magnetic Axis Configuration | X/Z with sensitivity mismatch - OUT1 responds to Bx, OUT2 to Bz; Bz sensitivity is half that of Bx, requiring system-level scaling for balanced sine/cosine amplitude. |
| Output Type | Ratiometric analog - Output voltage scales linearly with VDD; enables robust position measurement independent of supply rail drift when paired with ratiometric ADC. |
Pinout & Package
MLX90380LDC-BAB-506-RE uses the SOIC-8 package (JEDEC MS-012AC), with 1.27 mm pitch, 4.9 mm × 6.0 mm body, and exposed pad not connected internally. Pin 1 is located at the top-left corner adjacent to the notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry; must be low-impedance connection to system GND. |
| 2 | NC | No connect - internally unused; recommended to tie to GND for EMC improvement. |
| 3 | TEST | Factory test pin - unused in normal operation; tie to GND for optimal EMC performance. |
| 4 | NC | No connect - internally unused; recommended to tie to GND for EMC improvement. |
| 5 | OUT2 | Analog SIN output - provides ratiometric voltage proportional to Bz component; requires 10 kΩ–∞ load resistance and ≤10 nF capacitance. |
| 6 | VDD5V | 5 V supply input - active only in 5 V operating mode; VDD3V3 must remain floating when VDD5V is powered. |
| 7 | VDD3V3 | 3.3 V supply input - active only in 3.3 V operating mode; VDD5V must remain floating when VDD3V3 is powered. |
| 8 | OUT1 | Analog COS output - provides ratiometric voltage proportional to Bx component; same load and capacitance constraints as OUT2. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement using integrated vertical and planar Hall elements - eliminates need for external flux concentrators or multi-die assemblies. |
| Programmable Bandwidth | Three selectable filter bandwidths (low/medium/high) set via option code - enables trade-off between noise rejection and response latency without hardware change. |
| End-of-Shaft / Through-Shaft Flexibility | X/Z axis configuration supports both on-axis (end-of-shaft) and off-axis (through-shaft) magnet placements - accommodates diverse mechanical integration requirements. |
| Ratiometric Outputs | OUT1 and OUT2 scale directly with VDD - preserves angular accuracy across supply variations and simplifies interface with ratiometric ADCs in motor control MCUs. |
| Factory Calibration Option | End-of-line calibration available for improved position linearity - reduces total uncorrected angular error from ±15° to ≤±1.5° at room temperature. |
Applications
| Brushless Motor Rotor Position | PMSM Field-Oriented Control |
|---|---|
|
Use Scenario: Real-time rotor angle acquisition in traction inverters for electric power steering and EV drivetrains. IC Role / Device Role / Timing Role: Primary absolute position sensor feeding θe to FOC algorithm; replaces resolvers and optical encoders in harsh thermal environments. Use Value: Delivers <±1° compensated angular accuracy at 150°C ambient and 25,000 rpm, enabling precise torque vectoring without cooling infrastructure. |
Use Scenario: Closed-loop stator current alignment in industrial PMSM servo drives operating in dusty, high-vibration settings. IC Role / Device Role / Timing Role: High-speed analog resolver substitute providing synchronized sine/cosine signals to DSP-based motor controller. Use Value: 4 µs output update enables sub-degree phase tracking at 10 kHz electrical frequency, supporting >20 kHz PWM carrier synchronization. |
| Electric Power Steering (EPS) | Industrial Actuator Feedback |
|
Use Scenario: Steering column angle sensing in ASIL-B compliant EPS modules where failure modes must be detectable and bounded. IC Role / Device Role / Timing Role: Safety-critical angular transducer supplying redundant position data to dual-core MCU for torque assist calculation. Use Value: AEC-Q100 qualified (-40°C to 150°C), 2 kV HBM ESD rated, and supports dynamic self-test via programmable output offset sweep. |
Use Scenario: Position feedback in hydraulic valve spool actuators used in construction equipment and agricultural machinery. IC Role / Device Role / Timing Role: Contactless angular monitor interfacing directly with 12-bit SAR ADC in ruggedized PLC I/O module. Use Value: Immune to oil contamination, vibration, and EMI due to monolithic Hall architecture and differential analog output structure. |
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-500-RE | Same SOIC-8 package and X/Z axis, but 50 mT full-scale range and no sensitivity mismatch - higher signal-to-noise ratio at lower flux densities. | Better suited for smaller NdFeB magnets or tighter air gaps where peak B-field is <50 mT; requires no Z-axis scaling in firmware. | Select when magnet size or mechanical clearance limits achievable flux density and system-level gain matching is undesirable. |
| MLX90380LGO-BAB-506-RE | TSSOP-16 dual-die fully redundant package with identical BAB-506 programming - includes two independent sensor channels for functional safety compliance. | Required for ASIL-D systems needing hardware redundancy; occupies larger PCB area and draws ~2× supply current. | Choose when ISO 26262 ASIL-D compliance mandates dual-channel fault detection, and board space/layout changes are acceptable. |
Compared with MLX90380LDC-BAB-500-RE, the MLX90380LDC-BAB-506-RE trades SNR for extended magnetic range and explicit Z-axis scaling capability; compared with MLX90380LGO-BAB-506-RE, it offers identical sensing performance in a cost-optimized single-die SOIC-8 footprint without redundancy overhead.
Availability
MLX90380LDC-BAB-506-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial actuator applications requiring stable component supply across automotive production lifecycles and industrial OEM programs.
Supply support for MLX90380LDC-BAB-506-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 leadership in Hall-effect, IR, and pressure sensing technologies.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® technology, designed specifically for high-temperature, high-reliability motor control and steering applications where resolver replacement is required.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-506-RE?
The MLX90380LDC-BAB-506-RE is factory-programmed for X/Z magnetic axis with sensitivity mismatch (Bz/Bx = 2:1), meaning OUT1 responds to the X-component and OUT2 to the Z-component, with Z-sensitivity intentionally halved. This configuration supports through-shaft magnet placement and requires firmware scaling to equalize sine/cosine amplitudes before arctan computation.
Does MLX90380LDC-BAB-506-RE support both 3.3 V and 5 V operation simultaneously?
No. The MLX90380LDC-BAB-506-RE supports either 3.3 V or 5 V operation, not both simultaneously. When using VDD5V (pin 6), VDD3V3 (pin 7) must be left floating; when using VDD3V3, VDD5V must be floating. The device detects supply voltage at power-on and configures internal biasing accordingly.
What is the angular accuracy specification for MLX90380LDC-BAB-506-RE?
The MLX90380LDC-BAB-506-RE achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host MCU. Without correction, total error is ±10° at 25°C and ±15° across -40°C to 150°C. Linearity error alone is ≤±0.5% over 360° at nominal conditions.
Can MLX90380LDC-BAB-506-RE be used with ferrite or SmCo magnets?
No. The "BAB" option code in MLX90380LDC-BAB-506-RE explicitly designates NdFeB magnet optimization. Using ferrite or SmCo magnets will result in significant sensitivity mismatch and degraded angular accuracy. For SmCo, select BAA-coded variants; for ferrite, choose BAC-coded variants.
Is MLX90380LDC-BAB-506-RE pin-compatible with other MLX90380 variants in SOIC-8?
Yes. All SOIC-8 variants of the MLX90380 - including MLX90380LDC-BAA-xxx-RE, MLX90380LDC-BAB-xxx-RE, and MLX90380LDC-BAC-xxx-RE - share identical pinout, package dimensions, and electrical interface. Only magnetic sensitivity, axis configuration, and bandwidth are altered by option code; no PCB redesign is needed for substitution within the SOIC-8 family.
MLX90380LDC-BAB-506-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-506-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-506-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-506-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-506-RE reliable?
The price and inventory of MLX90380LDC-BAB-506-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-506-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-506-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-506-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-506-RE?
MLX90380LDC-BAB-506-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-506-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-506-RE?
For technical support, including MLX90380LDC-BAB-506-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-506-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-506-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-506-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-506-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-506-RE?
All MLX90380LDC-BAB-506-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-506-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-506-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-506-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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