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Melexis Technologies NV MLX90380LGO-BAA-100-RE
- Part No.:
- MLX90380LGO-BAA-100-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAA-100-RE.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
MLX90380LGO-BAA-100-RE from Melexis is a dual-die, fully redundant Triaxis® resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs. It operates from 3.3V or 5V supply, supports -40°C to 150°C ambient, achieves 4 µs output refresh rate, and is factory-programmed for X/Y magnetic axis with 40 mT full-scale range using SmCo magnet.
For engineers reviewing the MLX90380LGO-BAA-100-RE datasheet, pinout, applications, or equivalent options, this device serves as a high-reliability, AEC-Q100 qualified angular sensor for safety-critical motor control where redundancy, wide temperature operation, and programmable bandwidth are essential.
Technical Context
The MLX90380LGO-BAA-100-RE integrates two independent monolithic Triaxis® sensor dies in a single TSSOP-16 package, each with dedicated ground, supply, test, and analog output pins (OUT1_A/OUT2_A and OUT1_B/OUT2_B). Its dual-die architecture enables functional redundancy for ASIL-D capable systems without external duplication.
It uses Hall-based 3D magnetic field sensing orthogonal and parallel to the die surface, with internal signal conditioning including programmable sample-and-hold filtering (bandwidth selectable via option code), ratiometric output scaling, and on-chip EEPROM for factory calibration of sensitivity, offset, and magnetic axis configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking up to 25,000 rpm with ≤74 µs total tracking delay in high-bandwidth mode. |
| Operating Supply | 3.3 V or 5 V - Dual-supply support allows direct interfacing with 3.3 V MCUs or legacy 5 V systems; VDD3V3 and VDD5V pins must be used separately. |
| Full-Scale Magnetic Range | 40 mT - Factory-programmed sensitivity for SmCo magnets; defines ±40% VDD output swing at TA = 25°C. |
| Temperature Range | -40°C to +150°C - Qualified per AEC-Q100 Grade 0; junction limit 165°C supports under-hood automotive and industrial motor applications. |
| Output Linearity | ±0.5% - Measured over 360° at VDD = 5 V within 0.5–4.5 V output range; enables high-fidelity rotor position estimation before arctan computation. |
| Total Angular Error (uncorrected) | ±10° at 25°C - Specifies raw sensor linearity error; reduced to ±1° with dynamic ECU compensation (offset/gain/phase correction). |
| Magnetic Axis Configuration | X/Y - Outputs OUT1 = COS(X), OUT2 = SIN(Y); supports end-of-shaft mounting with two-pole magnets and equal sensitivity on both axes. |
Pinout & Package
TSSOP-16 package with exposed thermal pad (non-electrical); dual-die layout provides independent power, ground, and analog output paths for redundancy. All NC pins must be connected to GND for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B - required for fault isolation and noise rejection in redundant architectures. |
| 4, 11 | TEST_A / TEST_B | Dedicated test pins per die - used during factory programming and diagnostics; must be tied to GND in application for EMC. |
| 5, 13 | OUT2_B / OUT2_A | Sine analog outputs for Die B and Die A - ratiometric to respective VDD; enable independent angle validation across dies. |
| 8, 16 | OUT1_B / OUT1_A | Cosine analog outputs for Die B and Die A - paired with corresponding OUT2 pins to form redundant sin/cos channels. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs for Die B and Die A - used when operating at 5 V; VDD3V3 pins must remain floating in this mode. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs for Die B and Die A - used when operating at 3.3 V; VDD5V pins must remain floating in this mode. |
Key Features
| Feature | Design Value |
|---|---|
| Fully redundant dual-die architecture | Independent signal chains (power, ground, outputs) per die enable ASIL-D compliance and fault detection via cross-die comparison. |
| Programmable bandwidth filter | Customer-selectable sample-and-hold time constant (n = 1–16) sets bandwidth from low (≈1 kHz) to high (≈125 kHz Nyquist), optimizing SNR vs. latency trade-off. |
| Ratiometric sine/cosine outputs | Outputs scale linearly with VDD (±2.5% ratiometry); eliminates need for precision voltage references in MCU ADC interface. |
| Factory-programmed magnetic axis | X/Y configuration ensures matched sensitivity between COS and SIN channels for end-of-shaft two-pole magnet setups. |
| SmCo magnet optimization | BAA option code configures sensitivity and temperature coefficient for samarium-cobalt magnets, minimizing thermal drift in high-temp environments. |
Applications
| Electric Power Steering (EPS) | Automotive Transmission Sensors |
|---|---|
|
Use Scenario: Real-time rotor angle feedback for PMSM torque control in column-assist EPS modules exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Redundant resolver providing dual sin/cos pairs to separate MCU cores for lock-step angle validation and fault masking. Use Value: Enables ASIL-D compliant motor control with <1° dynamic angular error after ECU compensation, meeting ISO 26262 requirements. |
Use Scenario: Gear position and clutch engagement sensing in dual-clutch transmissions requiring continuous 360° rotation monitoring. IC Role / Device Role / Timing Role: Contactless angular sensor mounted on input shaft, delivering synchronized sine/cosine outputs to transmission control unit. Use Value: Eliminates mechanical wear and contact bounce issues of potentiometers; maintains ±0.5% linearity across -40°C to 150°C. |
| Industrial Servo Motor Feedback | Robot Joint Position Sensing |
|
Use Scenario: High-speed closed-loop commutation of permanent magnet synchronous motors in CNC machine tools. IC Role / Device Role / Timing Role: Resolver IC generating 4 µs-refresh sin/cos signals directly interfaced to FPGA-based motor controller ADCs. Use Value: Supports 25,000 rpm operation with minimal phase shift (<1.8° at max speed), enabling precise field-oriented control at high bandwidth. |
Use Scenario: Compact joint-angle measurement in collaborative robots where space-constrained through-shaft or end-of-shaft mounting is required. IC Role / Device Role / Timing Role: Triaxis® sensor configured for Z/Y axis to accommodate off-axis multi-pole magnet placement in hollow-shaft joints. Use Value: Delivers true absolute 360° position without index pulse or battery backup; survives repeated shock/vibration per IEC 60068-2-27. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar resolver sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAA-100-RE | SOIC-8 single-die variant; identical X/Y axis, 40 mT SmCo programming, same electrical specs but no hardware redundancy. | Lacks dual-die fault tolerance; suitable for non-safety-critical BLDC motor control where cost and footprint are prioritized. | Select when ASIL-B or lower integrity is sufficient and PCB area is constrained; requires external redundancy if needed. |
| AMS AS5055A-BQFT | Single-die 12-bit magnetic rotary encoder IC with SPI digital output; no analog sin/cos, narrower temp range (-40°C to 125°C). | Designed for incremental or absolute position with digital interface; not drop-in compatible due to different output format and lack of redundancy. | Choose for systems with SPI-capable MCUs and where digital position data simplifies signal chain; not suitable for resolver-based FOC. |
Compared with MLX90380LGO-BAA-100-RE, the SOIC-8 MLX90380LDC-BAA-100-RE reduces cost and size but removes hardware-level redundancy, while the AMS AS5055A-BQFT shifts to digital output and relaxes temperature capability-neither offers the same combination of dual-die analog resolver performance and AEC-Q100 Grade 0 qualification.
Availability
MLX90380LGO-BAA-100-RE is available at Aetrix Electronics and suitable for electric power steering, industrial servo motor control, and robotic joint position sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LGO-BAA-100-RE 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 applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90380 product line delivers Triaxis® technology-based contactless angular position sensing for safety-critical motor control systems, emphasizing redundancy, wide temperature operation, and programmable magnetic system adaptation.
FAQ
What is the magnetic axis configuration of the MLX90380LGO-BAA-100-RE?
The MLX90380LGO-BAA-100-RE is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 corresponds to COS(X) and OUT2 to SIN(Y) with equal sensitivity on both axes. This supports end-of-shaft mounting with two-pole magnets and enables accurate 360° angle calculation without external gain matching.
Does the MLX90380LGO-BAA-100-RE support both 3.3 V and 5 V operation simultaneously?
No. The MLX90380LGO-BAA-100-RE supports either 3.3 V or 5 V operation, but not both simultaneously. When using VDD5V_A/B, the VDD3V3_A/B pins must remain floating; conversely, when using VDD3V3_A/B, the VDD5V_A/B pins must be left unconnected. Mixing supplies risks undefined behavior.
How does the dual-die architecture of the MLX90380LGO-BAA-100-RE improve functional safety?
The MLX90380LGO-BAA-100-RE implements physically independent signal chains-including separate grounds (VSS_A/VSS_B), supplies (VDDx_A/VDDx_B), and analog outputs (OUT1_A/OUT2_A and OUT1_B/OUT2_B)-enabling cross-die comparison for fault detection. This architecture meets requirements for ASIL-D decomposition in ISO 26262-compliant systems.
What is the purpose of the TEST pins on the MLX90380LGO-BAA-100-RE?
The TEST_A and TEST_B pins on the MLX90380LGO-BAA-100-RE are used during factory programming and final test. In application, they must be connected to ground to ensure optimal electromagnetic compatibility and prevent noise coupling into the sensitive analog signal paths.
Can the MLX90380LGO-BAA-100-RE be used with NdFeB or ferrite magnets?
No-the MLX90380LGO-BAA-100-RE uses option code BAA, which specifies SmCo magnet optimization. For NdFeB magnets, select BAB-coded variants (e.g., MLX90380LGO-BAB-100-RE); for ferrite, use BAC-coded variants. Using mismatched magnet types degrades temperature stability and angular accuracy.
MLX90380LGO-BAA-100-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- 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-BAA-100-RE FAQ
1.How can I place an order for MLX90380LGO-BAA-100-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAA-100-RE 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-BAA-100-RE reliable?
The price and inventory of MLX90380LGO-BAA-100-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LGO-BAA-100-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAA-100-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAA-100-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAA-100-RE?
MLX90380LGO-BAA-100-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAA-100-RE 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-BAA-100-RE?
For technical support, including MLX90380LGO-BAA-100-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAA-100-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAA-100-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAA-100-RE 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-BAA-100-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAA-100-RE?
All MLX90380LGO-BAA-100-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAA-100-RE, 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-BAA-100-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAA-100-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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