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Melexis Technologies NV MLX90380LDC-BAB-305-SP
- Part No.:
- MLX90380LDC-BAB-305-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-305-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,010
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Product details
Overview
MLX90380LDC-BAB-305-SP 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 magnets with X/Z magnetic axis and 30 mT full-scale range.
For engineers reviewing the MLX90380LDC-BAB-305-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package mapping, magnetic axis configuration, ratiometric output behavior, and validated alternatives for BLDC and PMSM field-oriented control designs.
Technical Context
The MLX90380LDC-BAB-305-SP 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 ±40% VDD swing at full-scale flux density.
This variant is preconfigured for NdFeB magnets (BAB), X/Z magnetic axis (third digit '3'), and high-bandwidth operation (first digit '3' → 5V supply + high BW). Output tracking delay is 12 µs, and it supports dynamic angular error compensation via external MCU-based arctan(OUT2/OUT1) processing with offset/gain correction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular position capture at up to 25,000 RPM without interpolation latency. |
| Operating Supply | 3.3V or 5V - Dual-rail support allows direct interface with 3.3V MCUs or legacy 5V motor control systems. |
| Full-Scale Magnetic Range | 30 mT - Factory-set sensitivity optimized for NdFeB magnets in X/Z axis configuration (BAB-3xx). |
| Output Type | Ratiometric sine/cosine analog - Outputs scale linearly with VDD; enables robust angle computation immune to supply ripple. |
| Temperature Range | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments. |
| Angular Accuracy | ±1° total error with dynamic compensation - Achieved via external MCU correction of offset, gain, and phase. |
| Magnetic Axis | X/Z - OUT1 responds to BX, OUT2 to BZ; supports through-shaft magnet mounting per Figure 7. |
Pinout & Package
MLX90380LDC-BAB-305-SP is housed in an 8-pin SOIC package (JEDEC MS-012AC) with exposed pad for thermal performance. Unused pins (2, 4) and TEST pin (3) must be connected to ground for optimal EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry and analog outputs. |
| 2 | NC | No connect - must be tied to GND per EMC recommendation. |
| 3 | TEST | Factory test access - grounded during normal operation to suppress noise. |
| 4 | NC | No connect - must be tied to GND per EMC recommendation. |
| 5 | OUT2 | Analog SIN output - ratiometric voltage proportional to BZ component (X/Z axis). |
| 6 | VDD5V | 5V supply input - active when operating in 5V mode; VDD3V3 must float. |
| 7 | VDD3V3 | 3.3V supply input - active when operating in 3.3V mode; VDD5V must float. |
| 8 | OUT1 | Analog COS output - ratiometric voltage proportional to BX component (X/Z axis). |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-die assemblies. |
| Selectable Magnetic Axis | X/Z configuration enables mechanical flexibility for through-shaft magnet placement while maintaining single-die simplicity. |
| Programmable Bandwidth | High-bandwidth mode (BAB-3xx) delivers 12 µs tracking delay - critical for fast-response FOC loops in high-speed BLDC drives. |
| Ratiometric Outputs | Output voltages scale directly with VDD, removing dependency on stable reference voltage and simplifying ADC interfacing. |
| End-of-Shaft / Through-Shaft Support | Configurable axis selection (X/Z) and sensitivity range (30 mT) match common NdFeB magnet geometries in both mounting styles. |
Applications
| Brushless Motor Control | Field-Oriented Control (FOC) |
|---|---|
|
Use Scenario: Real-time rotor position feedback in 3-phase BLDC motors driving electric power steering (EPS) or HVAC blowers. IC Role / Device Role / Timing Role: Contactless resolver replacement providing synchronized sine/cosine signals for commutation timing and torque regulation. Use Value: Enables >25,000 RPM operation with 4 µs update rate and ±1° compensated angular accuracy - reducing torque ripple and acoustic noise. |
Use Scenario: High-precision angular measurement in permanent magnet synchronous motors (PMSM) used in industrial servo drives. IC Role / Device Role / Timing Role: Primary position sensor feeding closed-loop vector control algorithms requiring sub-degree linearity and temperature-stable outputs. Use Value: Ratiometric X/Z outputs maintain signal integrity across 3.3V/5V MCU interfaces and -40°C–150°C ambient, minimizing calibration overhead. |
| Electric Powertrain Position Sensing | Industrial Actuator Feedback |
|
Use Scenario: Rotor angle monitoring in traction inverters for mild-hybrid and battery-electric vehicle (BEV) drivetrains. IC Role / Device Role / Timing Role: AEC-Q100 qualified position sensor delivering fail-safe sine/cosine pairs for ISO 26262 ASIL-B functional safety architectures. Use Value: SOIC-8 package with 150°C rating supports direct placement near motor windings; X/Z axis reduces sensitivity to axial misalignment. |
Use Scenario: Angular feedback in hydraulic or electromechanical valve actuators for construction equipment and agricultural machinery. IC Role / Device Role / Timing Role: Robust non-contact position transducer replacing potentiometers or optical encoders in harsh, high-vibration environments. Use Value: 30 mT NdFeB-optimized range ensures reliable signal capture despite magnet aging or contamination; no moving parts or wear mechanisms. |
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-300-RE | Same SOIC-8 package and BAB-3xx series, but configured for X/Y magnetic axis and 40 mT range. | Suitable for end-of-shaft magnets with radial field orientation; requires different mechanical mounting and magnet polarity alignment. | Select when using SmCo or higher-flux NdFeB magnets in end-of-shaft configurations where X/Y symmetry improves linearity. |
| MLX90380LGO-BAB-305-RE | TSSOP-16 dual-die redundant version with identical BAB-305 programming (X/Z, 30 mT, 5V high BW), but includes full hardware redundancy. | Required for ASIL-D or SIL-3 safety-critical systems needing fault-tolerant position reporting; occupies larger PCB area and requires dual ADC channels. | Choose for automotive ADAS actuators or industrial safety-rated drives where single-point failure mitigation is mandated. |
Compared with MLX90380LDC-BAB-305-SP, the BAB-300-RE shifts magnetic axis and range for end-of-shaft use, while the LGO-BAB-305-RE adds die-level redundancy at the cost of footprint and system complexity - making the LDC variant optimal for cost-sensitive, high-volume BLDC applications requiring X/Z through-shaft compatibility.
Availability
MLX90380LDC-BAB-305-SP is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control, and electric powertrain position sensing requiring stable component supply across automotive and industrial production cycles.
Supply support for MLX90380LDC-BAB-305-SP 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 expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for motor control and safety-critical motion systems, designed specifically to replace traditional resolvers and optical encoders with higher reliability and lower system cost.
FAQ
What magnetic axis configuration does MLX90380LDC-BAB-305-SP use?
MLX90380LDC-BAB-305-SP is factory-programmed for the X/Z magnetic axis configuration, meaning OUT1 responds to the BX component and OUT2 to the BZ component. This supports through-shaft magnet mounting and is confirmed by the third digit '3' in the option code BAB-305, per Table 2 of the datasheet.
Does MLX90380LDC-BAB-305-SP support both 3.3V and 5V supply rails simultaneously?
No. MLX90380LDC-BAB-305-SP supports either 3.3V or 5V operation, not both concurrently. When using 5V, VDD5V (pin 6) must be powered and VDD3V3 (pin 7) left floating; for 3.3V operation, VDD3V3 is powered and VDD5V floats. This is specified in Section 9.1 and Figure 13 of the datasheet.
What is the full-scale magnetic range of MLX90380LDC-BAB-305-SP?
The full-scale magnetic range of MLX90380LDC-BAB-305-SP is 30 mT, as indicated by the fourth and fifth digits '05' in the option code BAB-305. This range is factory-programmed for NdFeB magnets and produces ±40% VDD output swing at TA = 25°C, per Table 2 and Section 12 specifications.
Can MLX90380LDC-BAB-305-SP be used in safety-critical automotive applications?
Yes - MLX90380LDC-BAB-305-SP is AEC-Q100 qualified (Grade 0, -40°C to 150°C) and supports functional safety architectures. While it is a single-die device, its ratiometric outputs, wide temperature range, and programmable diagnostics enable integration into ASIL-B systems; for ASIL-D, the redundant TSSOP-16 variant (e.g., MLX90380LGO-BAB-305-RE) is recommended.
How is angular accuracy achieved with MLX90380LDC-BAB-305-SP?
MLX90380LDC-BAB-305-SP achieves ±1° total angular error only when combined with dynamic compensation in the host MCU - including offset, gain, and phase correction applied prior to arctan(OUT2/OUT1) calculation. The uncompensated error is ±10° at 25°C and ±15° over full temperature range, as specified in Table 8.
MLX90380LDC-BAB-305-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tube
- 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-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-305-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-305-SP 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-SP reliable?
The price and inventory of MLX90380LDC-BAB-305-SP 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-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-305-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-305-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-305-SP?
MLX90380LDC-BAB-305-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-305-SP 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-SP?
For technical support, including MLX90380LDC-BAB-305-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-305-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-305-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-305-SP 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-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-305-SP?
All MLX90380LDC-BAB-305-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-305-SP, 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-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-305-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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