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Melexis Technologies NV MLX90380LGO-BAB-143-SP
- Part No.:
- MLX90380LGO-BAB-143-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-143-SP.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,790
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Product details
Overview
MLX90380LGO-BAB-143-SP from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via dual ratiometric sine/cosine analog outputs. 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 compatibility, 30mT full-scale magnetic range, X/Z magnetic axis with sensitivity mismatch, and high-bandwidth operation. It serves as the core position feedback element in brushless motor control systems requiring robustness under extreme thermal and EMI conditions.
For engineers reviewing the MLX90380LGO-BAB-143-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 package mapping, confirmed magnetic axis configuration (X/Z), real-world angular error performance (±1° with dynamic compensation), and validated alternative options for automotive-grade rotary position sensing.
Technical Context
The MLX90380LGO-BAB-143-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using two integrated die in a fully redundant TSSOP-16 package. Its dual-die architecture delivers independent COS (OUT1_A/OUT1_B) and SIN (OUT2_A/OUT2_B) outputs per die, enabling fault-tolerant angle computation in safety-critical applications.
Programmable bandwidth (high mode), selectable magnetic axis (X/Z with 50% Bz/Bx sensitivity ratio), and factory-set NdFeB magnet optimization (BAB prefix) define its operational envelope. The device uses internal chopping at 1 MHz and delivers 1.6 samples/degree at 25,000 rpm, with tracking delay of 12 µs in high-bandwidth mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, each 5–95% VDD swing |
| Output Update Rate | 4 µs per field component → enables real-time motor commutation up to 25,000 rpm |
| Operating Voltage | 3.3V or 5V supply - dual VDD pins allow mixed-voltage system integration |
| Temperature Range | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments |
| Magnetic Range | 30 mT full-scale (BAB-143) - optimized for NdFeB magnets in end-of-shaft configurations |
| Magnetic Axis | X/Z with sensitivity mismatch (Bz = 2×Bx) - supports through-shaft multi-pole magnet mounting |
| Angular Accuracy | ±1° total error with dynamic compensation - enables field-oriented control (FOC) without external calibration |
Pinout & Package
TSSOP-16 package with dual-die redundancy: Die A (pins 1,4,13–16) and Die B (pins 5–9,11) provide independent ground, supply, test, and analog output paths. Unused pins (2,3,10,12) must be connected to VSS for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns per die - critical for noise isolation in redundant architectures |
| 5, 13 | OUT2_B / OUT2_A | SIN output per die - enables cross-checking or voting logic in ASIL-D systems |
| 8, 16 | OUT1_B / OUT1_A | COS output per die - maintains phase relationship with SIN for arctan-based angle calculation |
| 6, 14 | VDD5V_B / VDD5V_A | 5V supply input per die - allows independent power domain control and fault containment |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3V supply input per die - floating when 5V mode active; supports mixed-supply MCU interfaces |
| 4, 11 | TEST_A / TEST_B | Factory test access - tied to VSS in production for optimal EMC performance |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-sensor assemblies |
| Redundant Dual-Die Architecture | TSSOP-16 layout isolates Die A and Die B electrically and thermally - meets ISO 26262 ASIL-D requirements |
| Programmable Bandwidth | High-bandwidth mode (12 µs tracking delay) supports fast-response FOC in PMSM drives up to 25,000 rpm |
| Ratiometric Outputs | Output voltage scales directly with VDD - removes dependency on stable reference voltage in noisy motor environments |
| End-of-Shaft / Through-Shaft Flexibility | X/Z axis with Bz/Bx = 50% enables use with both axial (end-of-shaft) and radial (through-shaft) magnet arrangements |
Applications
| Brushless Motor Control | PMSM Field-Oriented Control |
|---|---|
Use Scenario: Real-time rotor position feedback in traction inverters for electric power steering (EPS) and HVAC blowers. IC Role / Device Role / Timing Role: Primary angular resolver delivering synchronized COS/SIN pairs to MCU ADC for arctan-based angle computation. Use Value: ±1° dynamic angular accuracy enables precise d-q axis current regulation, reducing torque ripple by >40% versus incremental encoders. |
Use Scenario: High-speed commutation in permanent magnet synchronous motors used in industrial servo drives. IC Role / Device Role / Timing Role: Fault-tolerant position sensor with dual-die outputs feeding independent control loops for redundancy validation. Use Value: 4 µs update rate and 12 µs tracking delay support 25,000 rpm operation while maintaining <10 µs total loop latency. |
| Automotive Transmission Sensors | Electric Power Steering (EPS) |
Use Scenario: Gear position and clutch engagement detection in automated manual transmissions (AMT). IC Role / Device Role / Timing Role: Resolver interface providing absolute angular data to transmission control unit (TCU) over analog path. Use Value: -40°C to 150°C operation and AEC-Q100 qualification ensure reliability in under-hood thermal cycling and vibration. |
Use Scenario: Torque-angle correlation in column-assist EPS systems requiring fail-operational behavior. IC Role / Device Role / Timing Role: Redundant position sensor feeding primary and backup ECUs with independent COS/SIN signals. Use Value: Dual-die TSSOP-16 package enables hardware-level comparison between outputs, satisfying ASIL-D diagnostic coverage targets. |
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-143-RE | SOIC-8 single-die variant with identical BAB-143 programming (NdFeB, 30mT, X/Z, high BW) | Lacks dual-die redundancy; suitable for non-safety-critical BLDC fans or pumps | Select when cost and PCB area are prioritized over functional safety compliance |
| MLX90380LGO-BAA-143-RE | TSSOP-16 dual-die with SmCo magnet optimization (BAA vs BAB), same 30mT/X/Z/high-BW configuration | Requires SmCo magnet; higher temperature stability but lower coercivity than NdFeB | Select when operating above 130°C or requiring tighter TCS (<350 ppm/°C) across full range |
Compared with MLX90380LGO-BAB-143-SP, the SOIC-8 MLX90380LDC-BAB-143-RE reduces footprint and cost but removes fault tolerance, while the SmCo-optimized MLX90380LGO-BAA-143-RE improves high-temperature sensitivity stability at the expense of magnet material cost and mechanical robustness.
Availability
MLX90380LGO-BAB-143-SP is available at Aetrix Electronics and suitable for automotive EPS systems, industrial PMSM drives, and transmission control modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MLX90380LGO-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 sensor solutions for automotive and industrial markets, with expertise in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, steering, and transmission applications demanding ASIL-B/D compliance.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-143-SP?
The MLX90380LGO-BAB-143-SP is factory-programmed for X/Z magnetic axis with sensitivity mismatch (Bz/Bx = 50%), as indicated by the "BAB-143" option code. This configuration supports through-shaft multi-pole magnet mounting and enables accurate angle calculation when the magnetic field has dominant Z- and X-axis components. The device outputs COS on OUT1 and SIN on OUT2 relative to this axis pair.
Does MLX90380LGO-BAB-143-SP support both 3.3V and 5V operation?
Yes, MLX90380LGO-BAB-143-SP supports dual-supply operation: VDD3V3 (pins 7,15) accepts 3.135–3.6 V, and VDD5V (pins 6,14) accepts 4.5–5.5 V. For 5V operation, the VDD3V3 pins must be left floating; for 3.3V operation, VDD5V pins must be left floating. Both supplies power separate die in the TSSOP-16 package, enabling flexible system-level voltage domain design.
What is the angular accuracy specification for MLX90380LGO-BAB-143-SP?
The MLX90380LGO-BAB-143-SP achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host MCU, as documented in Table 8 of the datasheet. Without correction, total error is ±10° at 25°C and ±15° across -40°C to 150°C. The 4 µs output update rate and 12 µs tracking delay in high-bandwidth mode preserve this accuracy at rotational speeds up to 25,000 rpm.
How does the dual-die architecture of MLX90380LGO-BAB-143-SP improve system reliability?
The MLX90380LGO-BAB-143-SP integrates two fully independent sensor dies (Die A and Die B) in one TSSOP-16 package, each with dedicated VSS, VDD, TEST, and analog output pins. This physical and electrical separation enables cross-die comparison, voting algorithms, or independent control loops - fulfilling ASIL-D diagnostic coverage requirements for automotive EPS and transmission systems where single-point failure must be detected and mitigated.
Can MLX90380LGO-BAB-143-SP be used with ferrite magnets?
No, MLX90380LGO-BAB-143-SP is specifically programmed for NdFeB magnets, as indicated by the "BAB" prefix in its option code. Ferrite-magnet-optimized variants use the "BAC" prefix (e.g., MLX90380LGO-BAC-143-RE). Using MLX90380LGO-BAB-143-SP with ferrite magnets results in suboptimal sensitivity and increased angular error due to mismatched temperature coefficient (TCS) and full-scale range calibration.
MLX90380LGO-BAB-143-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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:
- 16-TSSOP
MLX90380LGO-BAB-143-SP FAQ
1.How can I place an order for MLX90380LGO-BAB-143-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-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 MLX90380LGO-BAB-143-SP reliable?
The price and inventory of MLX90380LGO-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 MLX90380LGO-BAB-143-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-143-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-143-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-143-SP?
MLX90380LGO-BAB-143-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-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 MLX90380LGO-BAB-143-SP?
For technical support, including MLX90380LGO-BAB-143-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-143-SP requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-143-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-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 MLX90380LGO-BAB-143-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-143-SP?
All MLX90380LGO-BAB-143-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-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 MLX90380LGO-BAB-143-SP part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-143-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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