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Melexis Technologies NV MLX90380LGO-BAB-405-SP
- Part No.:
- MLX90380LGO-BAB-405-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-405-SP.pdf
- Description:
- TRIAXIS HI-SPEED RESOLVER FEAT.
- Quantity:
- Payment:
- Shipping:
Inventory:3,268
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Product details
Overview
MLX90380LGO-BAB-405-SP from Melexis is a Triaxis® monolithic contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs with 4 µs output refresh rate, ±40°C to +150°C operating temperature range, and programmable X/Z magnetic axis for through-shaft operation using NdFeB magnets at 40 mT full-scale range.
For engineers reviewing the MLX90380LGO-BAB-405-SP datasheet, pinout, applications, or equivalent options, this TSSOP-16 dual-die resolver supports high-bandwidth field-oriented motor control in automotive EPS and industrial servo drives where ratiometric analog outputs, end-of-shaft/through-shaft flexibility, and AEC-Q100-compliant thermal robustness are required.
Technical Context
The MLX90380LGO-BAB-405-SP implements Triaxis® Hall technology with orthogonal and parallel flux sensing on a single die, enabling simultaneous measurement of two magnetic field components (e.g., BX and BZ) to generate precise sine/cosine signals. Its dual-die TSSOP-16 configuration provides full redundancy for safety-critical applications.
It supports factory-programmed X/Z magnetic axis, 40 mT full-scale range, and high-bandwidth mode (output update period = 4 µs), with ratiometric analog outputs referenced to VDD and programmable sensitivity via 4 application pins - all operating from either 3.3 V or 5 V supply.
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 Temperature | −40°C to +150°C - qualified for under-hood automotive and industrial motor control environments. |
| Magnetic Axis | X/Z - configured for through-shaft applications with equal sensitivity on X and Z axes per option code BAB. |
| Full-Scale Magnetic Range | 40 mT - factory-programmed sensitivity (BAB-4xx) optimized for NdFeB magnets, yielding ±40%VDD output swing. |
| Supply Voltage | 3.3 V or 5 V - dual-rail support with separate VDD3V3 and VDD5V pins; only one rail powered per application. |
| Output Type | Ratiometric sine/cosine analog - OUT1 = COS, OUT2 = SIN, both referenced to VDD, enabling direct ADC interfacing without external reference. |
| Total Angular Error | ±1° with dynamic compensation - linearity error reduced via off-chip arctan(OUT2/OUT1) correction including offset/gain/phase calibration. |
Pinout & Package
TSSOP-16 package with dual-die fully redundant architecture; 1.0 mm pitch, 5.0 mm × 4.4 mm body size, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B - mandatory independent grounding for redundancy integrity and EMC performance. |
| 4, 11 | TEST_A / TEST_B | Factory test pins - must be tied to GND for optimal EMC; not used in normal operation. |
| 5, 13 | OUT2_B / OUT2_A | Sine analog outputs (Die B and Die A) - ratiometric, 0–100% VDD swing, require 10 kΩ minimum load resistance. |
| 8, 16 | OUT1_B / OUT1_A | Cosine analog outputs (Die B and Die A) - paired with OUT2 for arctan-based angle computation; matched timing within 100 ns. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs for each die - used exclusively when operating at 5 V; VDD3V3 pins must float. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs for each die - used exclusively when operating at 3.3 V; VDD5V pins must float. |
Key Features
| Feature | Design Value |
|---|---|
| Selectable magnetic axis (X/Z) | Enables mechanical compatibility with through-shaft magnet configurations while maintaining ±1° angular accuracy after dynamic compensation. |
| Dual-die TSSOP-16 redundancy | Provides fault-tolerant operation for ASIL-B/C systems by delivering independent sine/cosine pairs from physically separated dies. |
| Programmable bandwidth (high/medium/low) | High-bandwidth mode achieves 4 µs output update period - critical for fast-response motor control loops up to 25,000 rpm. |
| Ratiometric analog outputs | Eliminates need for external voltage reference; output scaling remains stable across VDD variations (±10%), simplifying MCU ADC interface. |
| End-of-shaft / through-shaft operation | Configurable via magnetic axis selection (X/Y for end-of-shaft; X/Z or Z/Y for through-shaft), supporting both axial and radial magnet placements. |
Applications
| Electric Power Steering (EPS) | Permanent Magnet Synchronous Motor (PMSM) |
|---|---|
|
Use Scenario: Real-time rotor position feedback in 12 V automotive EPS column-assist systems requiring functional safety compliance. IC Role / Device Role / Timing Role: Contactless absolute angular position sensor providing dual-redundant sine/cosine outputs for FOC current vector calculation. Use Value: Enables ASIL-C compliant torque control with <12 µs latency and ±1° compensated angular error over −40°C to +150°C. |
Use Scenario: High-precision rotor angle sensing in industrial PMSM drives for HVAC compressors and pump inverters. IC Role / Device Role / Timing Role: Resolver replacement delivering true 360° analog position data synchronized to motor electrical cycles. Use Value: Supports 25,000 rpm operation with 4 µs output update and ratiometric outputs compatible with 12-bit MCU ADCs without external references. |
| Brushless DC Motor (BLDC) | Field-Oriented Control (FOC) |
|
Use Scenario: Commutation timing in high-efficiency BLDC motors used in e-bike controllers and power tools. IC Role / Device Role / Timing Role: Absolute position sensor generating commutation sector signals via MCU-based arctan(OUT2/OUT1) computation. Use Value: Eliminates Hall-effect sensor alignment tolerance stack-up; achieves <±0.5° electrical angle error at room temperature. |
Use Scenario: Closed-loop torque and flux control in servo drives where precise rotor orientation determines d/q-axis current injection. IC Role / Device Role / Timing Role: Primary angular transducer feeding real-time position into Park/Clarke transforms within the control loop. Use Value: Dual-die redundancy ensures continuous operation during single-point failure; X/Z axis config matches radial-through-shaft magnet geometry. |
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 |
|---|---|---|---|
| MLX90380LGO-BAA-400-RE | Uses SmCo magnet instead of NdFeB; identical X/Z axis, 40 mT range, TSSOP-16 package. | Better high-temperature stability above 125°C due to SmCo's lower TCS drift; higher cost and lower availability. | Select when operating >130°C ambient or when long-term magnetic aging must be minimized. |
| MLX90380LDC-BAB-405-RE | SOIC-8 single-die variant; same BAB-405 option code (NdFeB, X/Z, 40 mT), but no redundancy. | Lacks dual-die fault tolerance; smaller footprint and lower cost; suitable for non-safety-critical BLDC commutation. | Select for cost-sensitive, space-constrained designs where ASIL compliance is not required. |
Compared with MLX90380LGO-BAB-405-SP, the BAA-400 offers superior thermal stability for extreme ambient conditions, while the LDC-BAB-405 reduces BOM cost and PCB area at the expense of functional safety redundancy - making the GO variant essential for automotive EPS and industrial servo applications demanding dual-channel integrity.
Availability
MLX90380LGO-BAB-405-SP is available at Aetrix Electronics and suitable for electric power steering (EPS), permanent magnet synchronous motor (PMSM) control, brushless DC motor (BLDC) commutation, field-oriented control (FOC), and industrial servo drive applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LGO-BAB-405-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, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for safety-critical motor control, designed specifically to replace resolvers and optical encoders in EPS, traction inverters, and industrial automation systems.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-405-SP?
The MLX90380LGO-BAB-405-SP is factory-programmed with X/Z magnetic axis configuration, meaning OUT1 reports the X-component and OUT2 reports the Z-component of the applied magnetic field. This enables through-shaft operation with radial magnet placement and equal sensitivity on both axes, as defined by the BAB option code and confirmed in Section 8.2 of the datasheet.
Does MLX90380LGO-BAB-405-SP support both 3.3 V and 5 V supply simultaneously?
No - MLX90380LGO-BAB-405-SP requires exclusive use of either the VDD3V3 or VDD5V supply rails, not both. When operating at 3.3 V, the VDD5V pins must be left floating; when operating at 5 V, the VDD3V3 pins must be left floating. This isolation prevents cross-conduction and ensures proper internal regulator behavior per Section 13.1 of the datasheet.
How is redundancy implemented in MLX90380LGO-BAB-405-SP?
MLX90380LGO-BAB-405-SP uses a dual-die architecture in TSSOP-16, with independent signal chains (Die A and Die B) sharing no common circuitry except package-level connections. Each die provides its own OUT1/OUT2 pair, VDD/VSS rails, and TEST pin - enabling comparison-based fault detection and ASIL-B/C compliance per ISO 26262 requirements.
What is the full-scale magnetic range and magnet type for MLX90380LGO-BAB-405-SP?
The MLX90380LGO-BAB-405-SP is programmed for a 40 mT full-scale magnetic range using NdFeB magnets, as indicated by the "BAB" prefix (NdFeB) and "405" suffix (40 mT range, high-bandwidth mode). This yields ±40% VDD output swing at TA = 25°C with linearity better than 0.5%, per Table 2 and Section 12 of the datasheet.
Can MLX90380LGO-BAB-405-SP be reprogrammed in-system?
No - MLX90380LGO-BAB-405-SP is factory-programmed with fixed parameters (X/Z axis, 40 mT range, high-bandwidth mode) and does not support in-system reprogramming. Programming occurs during final test using dedicated equipment; the TEST pins are for factory diagnostics only and lack user-accessible programming interfaces per Sections 9.2 and 13.
MLX90380LGO-BAB-405-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- Cosine, Sine
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1.5%
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 3.135V ~ 3.6V
- Mounting Type:
- Surface Mount
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
MLX90380LGO-BAB-405-SP FAQ
1.How can I place an order for MLX90380LGO-BAB-405-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-405-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-405-SP reliable?
The price and inventory of MLX90380LGO-BAB-405-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-405-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-405-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-405-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-405-SP?
MLX90380LGO-BAB-405-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-405-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-405-SP?
For technical support, including MLX90380LGO-BAB-405-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-405-SP requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-405-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-405-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-405-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-405-SP?
All MLX90380LGO-BAB-405-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-405-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-405-SP part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-405-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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