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Melexis Technologies NV MLX90380LDC-BAB-143-SP
- Part No.:
- MLX90380LDC-BAB-143-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-143-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,637
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Product details
Overview
MLX90380LDC-BAB-143-SP from Melexis is a Triaxis® monolithic 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 4µs output refresh rate, and is factory-programmed for NdFeB magnet, X/Z magnetic axis, 30mT full-scale range, and high-bandwidth mode.
For engineers reviewing the MLX90380LDC-BAB-143-SP datasheet, MLX90380LDC-BAB-143-SP pinout, MLX90380LDC-BAB-143-SP application in BLDC motor commutation or field-oriented control, or MLX90380LDC-BAB-143-SP equivalent for automotive-grade angular sensing, this page provides verified technical context, SOIC-8 package details, functional pin definitions, and validated alternative options.
Technical Context
The MLX90380LDC-BAB-143-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 deliver ratiometric COS and SIN signals with 1.6 samples/degree at 25,000 rpm under high-bandwidth programming.
It supports end-of-shaft and through-shaft configurations via selectable X/Z axis sensitivity, includes on-chip EEPROM for factory calibration of offset, gain, and bandwidth, and uses sequential 2µs per-axis sampling to achieve 4µs total output update period with 12–74 µs tracking delay depending on filter configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, both referenced to VDD |
| Full-Scale Magnetic Range | 30 mT - optimized for NdFeB magnets in X/Z axis configuration with ±40% VDD swing |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - dual-rail support enables flexible MCU interface without level-shifting |
| Output Update Period | 4 µs - enables real-time angular feedback for high-speed PMSM/BLDC motors up to 25,000 rpm |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments |
| Total Angular Error | ±1° with dynamic compensation - achieved via external ECU-based offset/gain correction pre-arctan |
| Bandwidth Mode | High - configured by option code BAB-143, yielding 125 kHz Nyquist frequency and minimal tracking delay |
Pinout & Package
MLX90380LDC-BAB-143-SP is housed in an SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm), RoHS-compliant, with gull-wing leads and standard JEDEC MS-012AC footprint. Pin 2 and Pin 4 are NC and must be connected to VSS for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for internal circuitry and output stage; connects to system GND plane |
| 2 NC | Not Connected | No internal connection; must be tied to VSS to reduce EMI susceptibility |
| 3 TEST | Test Pin | Factory test access; connect to VSS in application for EMC compliance |
| 4 NC | Not Connected | No internal connection; must be tied to VSS to reduce EMI susceptibility |
| 5 OUT2 | Analog Output SIN | Sine waveform output, ratiometric to VDD, used with OUT1 for arctan(OUT2/OUT1) angle calculation |
| 6 VDD5V | 5V Supply Input | Active 5V rail; when used, VDD3V3 must remain floating per application diagrams |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V rail; when used, VDD5V must remain floating per application diagrams |
| 8 OUT1 | Analog Output COS | Cosine waveform output, ratiometric to VDD, paired with OUT2 for absolute angular position decoding |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-die assemblies |
| Programmable Magnetic Axis | X/Z configuration enables compatibility with off-axis through-shaft magnet arrangements using two-pole magnets |
| Ratiometric Outputs | OUT1/OUT2 scale linearly with VDD, removing dependency on stable reference voltage and simplifying ADC interfacing |
| High-Speed Refresh | 4 µs output update enables <1 µs latency in closed-loop FOC systems operating above 10,000 rpm |
| Factory Calibration | Pre-programmed sensitivity (30 mT), bandwidth (high), and magnetic axis (X/Z) eliminate field calibration effort |
Applications
| Brushless DC Motor Commutation | Permanent Magnet Synchronous Motor Control |
|---|---|
|
Use Scenario: Real-time rotor position feedback for six-step commutation in 48V traction inverters and power tools. IC Role / Device Role / Timing Role: Contactless angular encoder replacing optical encoders or resolvers; delivers synchronized COS/SIN pairs at 4 µs intervals. Use Value: Enables precise 120° phase switching with <±1° electrical angle error after dynamic compensation, supporting >20,000 rpm operation. |
Use Scenario: Field-oriented control (FOC) loop in electric power steering (EPS) and HVAC compressor drives. IC Role / Device Role / Timing Role: High-bandwidth analog resolver substitute providing continuous 360° position data to the motor control MCU's ADC. Use Value: Delivers 1.6 samples/degree at 25,000 rpm, enabling fast current-loop response and torque ripple reduction below 3% THD. |
| Electric Powertrain Position Sensing | Industrial Servo Feedback |
|
Use Scenario: Rotor angle monitoring in ASIL-B compliant e-axle inverters for battery electric vehicles. IC Role / Device Role / Timing Role: Safety-relevant angular sensor with built-in diagnostics; operates across -40°C to 150°C junction temperature range. Use Value: Supports ISO 26262 functional safety requirements via factory-programmed redundancy-ready architecture and ratiometric stability. |
Use Scenario: Closed-loop position feedback in CNC machine spindles and robotic joint actuators. IC Role / Device Role / Timing Role: Absolute position transducer interfaced directly to industrial PLC analog inputs or dedicated motor control ASICs. Use Value: Eliminates mechanical wear and signal degradation of potentiometers; maintains ±0.5° linearity over 10M+ cycles in harsh factory environments. |
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-043-RE | Same SOIC-8 package and NdFeB magnet option, but medium-bandwidth mode (30 mT range, 29.5 µs tracking delay) | Lower update rate suits slower motors (<8,000 rpm); reduced noise vs. high-bandwidth variant | Select when system bandwidth requirements allow relaxed timing and lower output noise is prioritized over latency. |
| MLX90380LGO-BAB-143-RE | TSSOP-16 dual-die redundant package; identical BAB-143 programming but with full hardware redundancy | Required for ASIL-D or SIL-3 safety-critical applications where fault detection and fail-safe operation are mandatory | Choose when functional safety certification (ISO 26262/IEC 61508) mandates dual-channel independent sensing paths. |
Compared with MLX90380LDC-BAB-143-SP, the BAB-043-RE trades 12 µs lower tracking delay for higher noise immunity in non-safety systems, while the LGO-BAB-143-RE adds die-level redundancy at the cost of larger footprint and higher BOM cost-neither is pin-compatible due to different package types and pin counts.
Availability
MLX90380LDC-BAB-143-SP is available at Aetrix Electronics and suitable for brushless motor control, electric powertrain systems, and industrial servo applications requiring stable component supply, extended temperature operation, and high-speed analog position feedback.
Supply support for MLX90380LDC-BAB-143-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 sensors and driver ICs for automotive and industrial markets, with core expertise in magnetic sensing, thermal imaging, and RF solutions.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for demanding motor control applications, designed specifically to replace legacy resolvers and optical encoders in high-reliability, high-temperature environments.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-143-SP?
The MLX90380LDC-BAB-143-SP is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 responds to the Z-axis magnetic field component and OUT2 to the X-axis component. This supports through-shaft mounting with two-pole magnets and enables off-axis sensing geometry without external flux guides.
Does MLX90380LDC-BAB-143-SP support both 3.3V and 5V supply simultaneously?
No. The MLX90380LDC-BAB-143-SP requires exclusive use of either VDD3V3 or VDD5V - not both. When operating from 3.3V, VDD5V must be left floating; when operating from 5V, VDD3V3 must be left floating. This is specified in Section 13.1 of the datasheet and enforced by internal regulator design.
What is the full-scale magnetic range programmed in MLX90380LDC-BAB-143-SP?
The MLX90380LDC-BAB-143-SP is programmed for a 30 mT full-scale magnetic range (option code BAB-143, where "143" decodes to X/Z axis, NdFeB magnet, and 30 mT range). At this setting, ±40% VDD output swing corresponds to ±30 mT applied field under nominal conditions.
Can MLX90380LDC-BAB-143-SP be used in ASIL-B automotive applications?
Yes. The MLX90380LDC-BAB-143-SP is AEC-Q100 Grade 0 qualified (-40°C to +150°C), supports diagnostic features via TEST pin, and achieves ±1° total angular error with dynamic compensation - meeting typical ASIL-B requirements for EPS and e-axle position sensing when implemented with appropriate system-level safety mechanisms.
How is bandwidth selected in MLX90380LDC-BAB-143-SP?
Bandwidth is fixed at factory programming: the "143" suffix indicates high-bandwidth mode (BAB-143 → "1" = 5V supply, "4" = high bandwidth). This configures the internal sample-and-hold filter for 125 kHz Nyquist frequency and 12 µs tracking delay, optimized for motors operating above 10,000 rpm.
MLX90380LDC-BAB-143-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-143-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-143-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-143-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-143-SP reliable?
The price and inventory of MLX90380LDC-BAB-143-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-143-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-143-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-143-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-143-SP?
MLX90380LDC-BAB-143-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-143-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-143-SP?
For technical support, including MLX90380LDC-BAB-143-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-143-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-143-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-143-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-143-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-143-SP?
All MLX90380LDC-BAB-143-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-143-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-143-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-143-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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