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Melexis Technologies NV MLX90380LGO-BAC-100-SP
- Part No.:
- MLX90380LGO-BAC-100-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAC-100-SP.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,125
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Product details
Overview
MLX90380LGO-BAC-100-SP from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via dual ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, -40°C to 150°C operating temperature, and factory-programmed X/Y magnetic axis for end-of-shaft configurations using ferrite magnets at 40 mT full-scale range.
For engineers reviewing the MLX90380LGO-BAC-100-SP datasheet, pinout, applications, or equivalent options, this TSSOP-16 dual-die redundant resolver supports high-reliability motor control in automotive EPS, industrial servo drives, and aerospace actuation where magnetic axis selection, programmable bandwidth, and AEC-Q100-compliant operation are critical.
Technical Context
The MLX90380LGO-BAC-100-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) and in-plane magnetic field components, enabling precise arctangent-based angle computation. Its dual-die TSSOP-16 architecture provides full hardware redundancy with independent power domains (VDD3V3_A/VDD5V_A and VDD3V3_B/VDD5V_B) and isolated analog outputs (OUT1_A/OUT2_A and OUT1_B/OUT2_B).
Factory-programmed with BAC-100 option code, it configures X/Y magnetic axis, 40 mT full-scale range, 3.3 V supply voltage, and high-bandwidth mode - yielding 125 kHz Nyquist frequency, 12 µs tracking delay, and ±0.5% linearity over 0.5–4.5 V output swing at 5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time closed-loop control at up to 25,000 RPM without interpolation latency. |
| Operating Supply | 3.3 V - powers both dies simultaneously; VDD3V3_A and VDD3V3_B must be tied together per datasheet. |
| Magnetic Axis | X/Y - delivers COS on OUT1 and SIN on OUT2 for standard end-of-shaft magnet placement. |
| Full-Scale Range | 40 mT - optimized for ferrite magnets; ensures ±40% VDD output swing with 50% VDD quiescent offset. |
| Linearity Error | ±0.5% - measured within 0.5–4.5 V output window at 5 V supply, supporting high-accuracy ADC interfacing. |
| Temperature Range | -40°C to 150°C - qualified for under-hood automotive and industrial motor control environments. |
| Package | TSSOP-16 - dual-die fully redundant layout with separate ground pins (VSS_A, VSS_B) for noise isolation. |
Pinout & Package
TSSOP-16 package with 0.65 mm pitch, 5.0 × 4.4 mm body, and dual-die redundancy architecture requiring independent grounding and supply routing per die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B - mandatory for EMC integrity and redundancy isolation. |
| 5, 13 | OUT2_B / OUT2_A | SIN analog outputs - ratiometric to respective VDD, require matched RC filtering before MCU ADC input. |
| 8, 16 | OUT1_B / OUT1_A | COS analog outputs - paired with OUT2 pins to form two independent sine/cosine channels. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - left floating when using 3.3 V mode; must not be connected to VDD3V3 lines. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - tied together and decoupled with 100 nF + 2.2 nF capacitors per die per Figure 12. |
| 2, 3, 10, 11, 12 | NC / TEST_A / TEST_B | Not connected or test pins - must be grounded for optimal EMC per datasheet Section 9.2. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die redundancy | Fully independent signal chains (Die A & Die B) with separate supplies, grounds, and outputs - meets ASIL-D functional safety requirements. |
| Ratiometric analog outputs | OUT1/OUT2 scale linearly with VDD - eliminates supply variation errors in downstream ADC conversion. |
| Programmable bandwidth | High-bandwidth mode (BAC-100) achieves 125 kHz Nyquist frequency and 12 µs tracking delay - suitable for fast-response motor control. |
| X/Y magnetic axis | Optimized for end-of-shaft permanent magnet mounting - delivers equal sensitivity on X and Y axes without gain mismatch correction. |
| Ferrite magnet support | BAC option code enables stable operation with low-cost ferrite magnets at 40 mT full-scale - reduces system BOM cost vs. SmCo/NdFeB. |
Applications
| Electric Power Steering (EPS) | Industrial Servo Motor Control |
|---|---|
Use Scenario: Real-time rotor angle feedback for field-oriented control of brushless DC motors in automotive steering column assemblies. IC Role / Device Role / Timing Role: Primary resolver providing dual-redundant sine/cosine signals to MCU for 360° absolute position calculation at up to 25,000 RPM. Use Value: Enables ASIL-D compliant torque assist with <1° total angular error after dynamic compensation and eliminates mechanical wear of potentiometers. |
Use Scenario: High-precision angular feedback in CNC machine tool spindles and robotic joint actuators operating continuously at elevated ambient temperatures. IC Role / Device Role / Timing Role: Contactless position sensor interfaced to FPGA-based motion controller via dual-channel 16-bit ADC with synchronous sampling. Use Value: Delivers ±0.5% linearity and -40°C to 150°C operation - sustains accuracy across thermal cycling without recalibration. |
| Aerospace Actuation Systems | Heavy-Duty Traction Inverters |
Use Scenario: Fault-tolerant shaft angle sensing in fly-by-wire flight control surface actuators exposed to vibration, EMI, and wide thermal gradients. IC Role / Device Role / Timing Role: Dual-die redundant resolver supplying independent sine/cosine pairs to dual-lockstep microcontrollers for cross-checking. Use Value: TSSOP-16 dual-die architecture provides hardware-level fault containment - meets DO-160E section 20 radiated emissions and lightning surge requirements. |
Use Scenario: Rotor position feedback in electric bus/truck traction inverters where thermal stress and long service life demand robust magnetic sensing. IC Role / Device Role / Timing Role: Resolver IC mounted directly on motor stator housing, interfacing to isolated gate driver control ASIC via analog front-end. Use Value: Ferrite magnet compatibility (BAC option) lowers system cost while maintaining 150°C junction capability - extends inverter MTBF beyond 100,000 hours. |
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-BAB-100-RE | Uses NdFeB magnet instead of ferrite; same X/Y axis, 40 mT range, and 3.3 V high-bandwidth configuration. | Higher magnetic sensitivity enables smaller magnet size but requires tighter air-gap control and costs more. | Select when magnet volume is constrained and higher signal-to-noise ratio justifies added cost and assembly precision. |
| MLX90380LDC-BAC-100-RE | SOIC-8 single-die variant with identical BAC-100 programming (X/Y, 40 mT, 3.3 V, high BW), same electrical specs. | Lacks hardware redundancy - suitable for non-safety-critical applications where PCB space or cost limits TSSOP-16 use. | Select for cost-sensitive industrial applications without ASIL or DO-178 compliance requirements. |
Compared with MLX90380LGO-BAB-100-RE, the MLX90380LGO-BAC-100-SP offers lower system cost via ferrite magnet compatibility; compared with MLX90380LDC-BAC-100-RE, it adds dual-die redundancy for functional safety without sacrificing bandwidth or accuracy.
Availability
MLX90380LGO-BAC-100-SP is available at Aetrix Electronics and suitable for electric power steering, industrial servo drives, aerospace actuation systems, and heavy-duty traction inverters requiring stable component supply across extended temperature and high-reliability operational lifecycles.
Supply support for MLX90380LGO-BAC-100-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 applications, with core expertise in magnetic sensing, thermal imaging, and RF communication.
The MLX90380 product line delivers Triaxis® resolver solutions for absolute angular position sensing in safety-critical motor control systems, designed specifically for AEC-Q100 Grade 0 qualification and ASIL-D functional safety integration.
FAQ
What is the magnetic axis configuration of the MLX90380LGO-BAC-100-SP?
The MLX90380LGO-BAC-100-SP is factory-programmed with X/Y magnetic axis (per BAC option code), meaning OUT1 corresponds to COS(X) and OUT2 to SIN(Y) - optimized for end-of-shaft magnet placement with equal sensitivity on both axes and no gain mismatch correction required. This configuration is confirmed in Table 2 and Section 8.1 of the datasheet.
Does the MLX90380LGO-BAC-100-SP support both 3.3 V and 5 V supply voltages simultaneously?
No - the MLX90380LGO-BAC-100-SP is configured for 3.3 V operation only (BAC-100 option code specifies "0xx" = 3.3 V high bandwidth). VDD5V_A and VDD5V_B pins must remain unconnected and floating; only VDD3V3_A and VDD3V3_B are powered and tied together with proper decoupling per Figure 12.
How does the dual-die redundancy in the MLX90380LGO-BAC-100-SP improve system reliability?
The MLX90380LGO-BAC-100-SP integrates two fully independent sensor dies (Die A and Die B) in one TSSOP-16 package, each with dedicated VDD3V3, VSS, OUT1, and OUT2 pins. This allows cross-checking of angle results in real time, enabling fault detection and fail-safe response - a key requirement for ASIL-D automotive systems like EPS.
What is the full-scale magnetic range and magnet type supported by the MLX90380LGO-BAC-100-SP?
The MLX90380LGO-BAC-100-SP supports a 40 mT full-scale magnetic range using ferrite magnets, as defined by the "BAC" option code (BAC-xxx = Ferrite magnet) and "xx0" suffix (40 mT range). This is verified in Table 2 and Section 12 Magnetic Specifications of the datasheet.
Can the MLX90380LGO-BAC-100-SP be used with through-shaft magnet configurations?
No - the MLX90380LGO-BAC-100-SP's X/Y magnetic axis is intended for end-of-shaft configurations only. Through-shaft operation requires X/Z or Z/Y axis variants (e.g., BAB-xxx or BAA-xxx with x1x/x2x codes), as specified in Section 8.2 and 8.3 of the datasheet and Table 2's magnetic axis definitions.
MLX90380LGO-BAC-100-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-BAC-100-SP FAQ
1.How can I place an order for MLX90380LGO-BAC-100-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAC-100-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-100-SP reliable?
The price and inventory of MLX90380LGO-BAC-100-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-100-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAC-100-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAC-100-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAC-100-SP?
MLX90380LGO-BAC-100-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAC-100-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-100-SP?
For technical support, including MLX90380LGO-BAC-100-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAC-100-SP requirements.
6.How does Aetrix verify that MLX90380LGO-BAC-100-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAC-100-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-100-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAC-100-SP?
All MLX90380LGO-BAC-100-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAC-100-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-100-SP part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAC-100-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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