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Melexis Technologies NV MLX90380LGO-BAC-000-SP
- Part No.:
- MLX90380LGO-BAC-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAC-000-SP.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,678
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Product details
Overview
MLX90380LGO-BAC-000-SP from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, -40°C to 150°C operating temperature, and programmable X/Y magnetic axis for end-of-shaft configurations using ferrite magnets.
For engineers reviewing the MLX90380LGO-BAC-000-SP datasheet, pinout, applications, or equivalent options, this TSSOP-16 dual-die redundant resolver supports high-reliability motor control in automotive EPS, traction inverters, and industrial servo drives where field-oriented control demands sub-degree angular accuracy and ASIL-B readiness.
Technical Context
The MLX90380LGO-BAC-000-SP implements Triaxis® Hall technology to simultaneously measure orthogonal (X/Y) magnetic field components using two independent die in TSSOP-16, enabling fully redundant sine/cosine signal generation. Its dual-die architecture provides fault detection capability through cross-die comparison of output timing and amplitude.
Programmable sensitivity (40 mT full-scale range), magnetic axis selection (X/Y), and bandwidth configuration (high-bandwidth mode) are set at factory via option code BAC-000 - specifying ferrite magnet compatibility, X/Y axis alignment, 40 mT range, 3.3 V supply, and low bandwidth - with no external programming required during operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle tracking up to 25,000 rpm without interpolation delay |
| Operating Temperature | -40°C to 150°C - qualified for under-hood automotive and industrial motor control environments |
| Supply Voltage | 3.3 V nominal - configured for VDD3V3 operation; VDD5V pins must remain floating |
| Magnetic Range | 40 mT full-scale - optimized for ferrite magnets per BAC option code, supporting ±40% VDD output swing |
| Angular Accuracy | ±1° total error with dynamic compensation - achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction |
| Output Type | Ratiometric sine/cosine analog - OUT1 = COS, OUT2 = SIN, both referenced to VDD for ADC interface stability |
| Package | TSSOP-16 - dual-die fully redundant layout with separate ground and supply pins per die (VSS_A/VSS_B, VDD3V3_A/VDD3V3_B) |
Pinout & Package
TSSOP-16 package with dual-die redundancy: physically isolated die A and die B each provide independent COS/SIN outputs and dedicated supply/ground paths to support functional safety architectures (e.g., ISO 26262 ASIL-B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for die A and die B - mandatory for noise isolation and fault discrimination |
| 5, 13 | OUT2_B / OUT2_A | Sine output channels for die B and die A - used for cross-checking and redundancy validation |
| 8, 16 | OUT1_B / OUT1_A | Cosine output channels for die B and die A - paired with respective OUT2 for arctan computation |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - must be left floating when operating at 3.3 V (per BAC-000 configuration) |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - active power rails for both dies in this variant; decoupling required per die |
| 2, 3, 10, 12 | NC | No-connect pins - tied to ground per EMC guidelines to minimize radiated emissions |
| 4, 11 | TEST_A / TEST_B | Factory test access - grounded for optimal EMC; not user-accessible in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal field measurement eliminates need for external flux concentrators or multi-sensor assemblies |
| Dual-Die Redundancy | Independent COS/SIN pairs per die enable real-time cross-validation and fail-safe reporting per ISO 26262 requirements |
| Programmable Magnetic Axis | X/Y configuration (BAC-000) supports end-of-shaft mounting with radial-field permanent magnets |
| Ratiometric Outputs | Output voltage scaling directly tracks VDD, eliminating gain drift errors in MCU ADC interfaces |
| Ferrite Magnet Optimization | BAC option code configures 40 mT full-scale range and temperature coefficient targeting ferrite's -0.2%/°C flux decay |
Applications
| Electric Power Steering (EPS) | Traction Motor Control |
|---|---|
|
Use Scenario: Real-time rotor angle feedback for field-oriented control of brushless DC motors in automotive steering column actuators. IC Role / Device Role / Timing Role: Resolver replacement providing analog sine/cosine signals to MCU ADC with <4 µs latency and ASIL-B compliance. Use Value: Enables precise torque vectoring and smooth assist response across -40°C to 150°C ambient, with dual-die redundancy meeting ISO 26262 hardware fault tolerance requirements. |
Use Scenario: High-speed angular position sensing in 400 V battery-powered EV traction inverters. IC Role / Device Role / Timing Role: Primary angle sensor feeding FOC algorithm at >20 kHz update rate; ratiometric outputs maintain accuracy despite VDD ripple from switching regulators. Use Value: Supports 25,000 rpm motor operation with ±1° dynamic angular error after ECU-based compensation, reducing torque ripple and acoustic noise. |
| Industrial Servo Drives | Robot Joint Actuation |
|
Use Scenario: Closed-loop position control in CNC machine spindles requiring sub-arcminute repeatability. IC Role / Device Role / Timing Role: Contactless resolver alternative delivering true 360° absolute angle with no homing requirement. Use Value: Eliminates mechanical wear and maintenance of traditional resolvers while maintaining <0.5° linearity error over full temperature range. |
Use Scenario: Compact joint-angle feedback in collaborative robot arms where space and weight constraints limit sensor options. IC Role / Device Role / Timing Role: End-of-shaft mounted Triaxis® sensor interfacing directly to ARM Cortex-M7-based motion controller ADC. Use Value: X/Y axis configuration with ferrite magnet enables <8 mm axial profile; TSSOP-16 footprint fits tight PCB layouts without sacrificing redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar resolver replacement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAC-000-RE | SOIC-8 single-die variant; identical BAC-000 option code (ferrite, X/Y, 40 mT, 3.3 V), but no dual-die redundancy | Lacks cross-die fault detection; suitable for non-safety-critical applications like HVAC blowers or pump control | Select when cost and board space are constrained and ASIL-B is not required. |
| AMS AS5055A-BQFT | Single-die 12-bit SPI-output magnetic encoder; no analog sine/cosine outputs; 3.3 V only; -40°C to 125°C rating | Requires digital interface and external processing; lower temperature grade limits use in engine bay or traction inverters | Select when digital interface simplifies system design and extended temperature is not needed. |
Compared with MLX90380LGO-BAC-000-SP, the SOIC-8 MLX90380LDC-BAC-000-RE reduces cost and footprint but removes hardware-level redundancy, while the AMS AS5055A-BQFT trades analog resolver compatibility for digital simplicity at the expense of temperature range and functional safety readiness.
Availability
MLX90380LGO-BAC-000-SP is available at Aetrix Electronics and suitable for electric power steering, traction motor control, and industrial servo drive applications requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification.
Supply support for MLX90380LGO-BAC-000-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 and embedded signal processing.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form for high-reliability angular position sensing in safety-critical motor control systems.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAC-000-SP?
The MLX90380LGO-BAC-000-SP is factory-programmed with X/Y magnetic axis configuration (per BAC option code), meaning OUT1 responds to the X-component and OUT2 to the Y-component of the applied magnetic field - optimized for end-of-shaft radial-field magnet arrangements. This configuration is fixed and cannot be reprogrammed in-system.
Does MLX90380LGO-BAC-000-SP support both 3.3 V and 5 V operation?
No - MLX90380LGO-BAC-000-SP is configured for 3.3 V operation only (BAC-000 specifies "0xx" bandwidth code). The VDD5V pins (6 and 14) must remain floating; powering them risks damage. Only VDD3V3_A (pin 7) and VDD3V3_B (pin 15) are active supply inputs in this variant.
How does the dual-die redundancy in MLX90380LGO-BAC-000-SP improve functional safety?
The dual-die architecture in MLX90380LGO-BAC-000-SP provides independent COS/SIN signal chains (die A and die B), enabling real-time cross-comparison of angle outputs, timing, and amplitude. Discrepancies trigger fault flags - a key requirement for ISO 26262 ASIL-B compliance in automotive motor control systems.
What magnet type is MLX90380LGO-BAC-000-SP calibrated for?
MLX90380LGO-BAC-000-SP uses the BAC option code, indicating factory calibration for ferrite magnets - including sensitivity temperature coefficient tuning to match ferrite's -0.2%/°C flux decay and 40 mT full-scale range optimized for typical ferrite field strength at air gap.
Can MLX90380LGO-BAC-000-SP be used with through-shaft magnet configurations?
No - the X/Y magnetic axis (BAC-000) is designed exclusively for end-of-shaft configurations with radial-field magnets. Through-shaft applications require Z/Y or X/Z axis variants (e.g., BAB or BAA codes); using MLX90380LGO-BAC-000-SP in through-shaft setups results in degraded linearity and angular error.
MLX90380LGO-BAC-000-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:
- 1.135V ~ 3.6V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
MLX90380LGO-BAC-000-SP FAQ
1.How can I place an order for MLX90380LGO-BAC-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAC-000-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-BAC-000-SP reliable?
The price and inventory of MLX90380LGO-BAC-000-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-BAC-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAC-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAC-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAC-000-SP?
MLX90380LGO-BAC-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAC-000-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-BAC-000-SP?
For technical support, including MLX90380LGO-BAC-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAC-000-SP requirements.
6.How does Aetrix verify that MLX90380LGO-BAC-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAC-000-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-BAC-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAC-000-SP?
All MLX90380LGO-BAC-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAC-000-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-BAC-000-SP part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAC-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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