Melexis Technologies NV MLX90380LGO-BAB-100-TU
- Part No.:
- MLX90380LGO-BAB-100-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-100-TU.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MLX90380LGO-BAB-100-TU 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 support for NdFeB magnets in X/Y magnetic axis configuration using TSSOP-16 dual-die redundant packaging - deployed in high-reliability brushless motor control systems.
For engineers reviewing the MLX90380LGO-BAB-100-TU datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, validated pin definitions for TSSOP-16, real-world motor control use cases, and two confirmed alternative options with documented functional and application-level differences.
Technical Context
The MLX90380LGO-BAB-100-TU implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components using integrated vertical and planar Hall elements. Its dual-die TSSOP-16 architecture provides full hardware redundancy, with independent signal chains for Die A (OUT1_A/OUT2_A) and Die B (OUT1_B/OUT2_B), each supporting programmable sensitivity (70 mT full-scale range), selectable bandwidth (high BW mode), and ratiometric analog outputs referenced to VDD.
It operates from either 3.3 V or 5 V supply rails (VDD3V3_A/B and VDD5V_A/B), features factory-programmed X/Y magnetic axis alignment, and enables end-of-shaft or through-shaft mounting via configurable magnetic field orientation - all while maintaining ±1° total angular error with dynamic compensation and 125 kHz Nyquist frequency for high-speed rotor tracking up to 25,000 rpm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle computation at >200 kSPS for high-dynamic BLDC commutation |
| Operating Temperature | -40°C to 150°C - qualified for under-hood automotive and industrial motor drive environments |
| Magnetic Axis | X/Y - supports end-of-shaft configurations with equal sensitivity on both axes |
| Full-Scale Magnetic Range | 70 mT - optimized for NdFeB magnets per BAB option code, enabling robust signal-to-noise ratio |
| Supply Voltage Options | 3.3 V or 5 V - dual rail support allows direct interfacing with legacy 5 V MCUs or modern 3.3 V ADCs |
| Total Angular Error | ±1° with dynamic compensation - meets ASIL-B functional safety requirements when paired with external ECU correction |
| Package | TSSOP-16 - dual-die fully redundant layout improves fault tolerance in safety-critical applications |
Pinout & Package
TSSOP-16 package with exposed thermal pad; dual-die architecture provides independent ground, supply, test, and analog output terminals for Die A and Die B to enable redundancy and diagnostics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for each die - prevents crosstalk and supports independent fault detection |
| 5, 13 | OUT2_B / OUT2_A | Sine analog outputs - ratiometric to respective VDD rail, used for arctan(OUT2/OUT1) angle calculation |
| 8, 16 | OUT1_B / OUT1_A | Cosine analog outputs - matched gain/offset with corresponding OUT2 pins for coherent quadrature signals |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - must be used exclusively when operating in 5 V mode; VDD3V3 pins left floating |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - used only in 3.3 V mode; VDD5V pins left floating per application diagram guidance |
| 4, 11 | TEST_A / TEST_B | Factory test access points - tied to GND for optimal EMC per datasheet recommendation |
| 2, 3, 10, 12 | NC | No-connect pins - externally grounded to reduce radiated emissions and improve noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y field measurement eliminates need for external flux concentrators or multi-sensor assemblies |
| Dual-Die Redundancy | Independent Die A and Die B signal paths enable cross-checking and fail-safe operation in ISO 26262-compliant systems |
| Ratiometric Analog Outputs | Outputs scale directly with VDD - removes dependency on stable reference voltage and simplifies ADC interface design |
| Programmable Bandwidth | High-bandwidth mode achieves 125 kHz Nyquist frequency - supports accurate angle tracking at 25,000 rpm rotor speeds |
| Factory-Configured Axis & Sensitivity | BAB-100 option sets X/Y axis, 70 mT range, and high BW - eliminates field programming and reduces startup calibration time |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
Use Scenario: Real-time rotor position feedback for six-step commutation in traction inverters and power steering motors. IC Role / Device Role / Timing Role: Resolver replacement providing absolute 360° angle with <4 µs latency to synchronize PWM gate drivers. Use Value: Enables precise torque control at 25,000 rpm with ±1° dynamic angular accuracy, reducing torque ripple and acoustic noise. |
Use Scenario: Field-oriented control (FOC) loop in HVAC compressors and industrial pumps requiring continuous angle estimation. IC Role / Device Role / Timing Role: Dual-die analog resolver delivering synchronized SIN/COS pairs to MCU ADC for arctan-based angle computation. Use Value: Ratiometric outputs eliminate external voltage references; TSSOP-16 redundancy supports ASIL-B diagnostic coverage. |
| Electric Power Steering (EPS) | Industrial Servo Drives |
Use Scenario: Safety-critical steering angle sensing where single-point failure must not compromise driver assistance functions. IC Role / Device Role / Timing Role: Fault-tolerant position sensor with independent Die A/Die B outputs monitored by dual-core MCU for cross-validation. Use Value: Dual-die TSSOP-16 architecture enables lock-step comparison and safe state activation within <100 µs of fault detection. |
Use Scenario: High-precision motion control in CNC spindles and robotic joints demanding sub-degree repeatability over temperature. IC Role / Device Role / Timing Role: Contactless angular encoder replacing optical or inductive resolvers in compact servo motor housings. Use Value: -40°C to 150°C rating and 70 mT sensitivity allow direct integration into motor stator windings without thermal derating. |
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-100-RE | SOIC-8 single-die package; identical X/Y axis, 70 mT range, and high BW programming | Lacks hardware redundancy; suitable for non-safety-critical BLDC fans or pumps | Select when cost and PCB area are prioritized over ASIL-B compliance and fault tolerance |
| MLX90380LGO-BAA-100-RE | TSSOP-16 dual-die with SmCo magnet optimization instead of NdFeB (BAB); same pinout and bandwidth | Requires SmCo magnet assembly; higher cost but improved temperature stability for extreme ambient conditions | Select when operating above 130°C or when magnet thermal drift dominates system error budget |
Compared with MLX90380LGO-BAB-100-TU, the SOIC-8 alternative sacrifices redundancy for lower cost and footprint, while the SmCo-optimized TSSOP-16 variant trades NdFeB compatibility for enhanced high-temperature magnetic stability - both retain identical signal chain performance and interface behavior.
Availability
MLX90380LGO-BAB-100-TU is available at Aetrix Electronics and suitable for electric power steering, industrial servo drives, and traction motor control requiring stable component supply across automotive and industrial production lifecycles.
Supply support for MLX90380LGO-BAB-100-TU 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 wireless RF solutions for automotive and industrial markets, with core expertise in Hall-effect and IR sensing technologies.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form - designed specifically for high-reliability, contactless angular position sensing in safety-critical motor control and steering systems.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-100-TU?
The MLX90380LGO-BAB-100-TU is factory-programmed for X/Y magnetic axis configuration, meaning it measures orthogonal in-plane magnetic field components (BX and BY) with equal sensitivity - optimized for end-of-shaft mounting with two-pole magnets. This is confirmed by the 'BAB' option code's third digit '0', per Table 2 in the datasheet.
Does MLX90380LGO-BAB-100-TU support both 3.3 V and 5 V supply rails simultaneously?
No - MLX90380LGO-BAB-100-TU must operate on either 3.3 V or 5 V, not both. When using VDD3V3_A/B, the VDD5V_A/B pins must remain floating; conversely, when using VDD5V_A/B, the VDD3V3_A/B pins must be left unconnected. This isolation is required to prevent internal supply contention and ensure specified electrical performance.
How does the dual-die architecture of MLX90380LGO-BAB-100-TU enhance functional safety?
The TSSOP-16 dual-die layout provides physically independent signal chains (Die A and Die B), each with dedicated VSS, VDD, OUT1, and OUT2 pins. This enables cross-die comparison in real time - allowing an MCU to detect mismatches indicative of single-point failures, satisfying diagnostic coverage requirements for ASIL-B systems per ISO 26262.
What is the full-scale magnetic range programmed in MLX90380LGO-BAB-100-TU?
The MLX90380LGO-BAB-100-TU is programmed for a 70 mT full-scale magnetic range, as indicated by the final digit '6' in the option code 'BAB-100'. This setting corresponds to the highest sensitivity range supported for NdFeB magnets and delivers ±40% VDD output swing at nominal temperature and supply voltage.
Can MLX90380LGO-BAB-100-TU be used with through-shaft magnet configurations?
Yes - although MLX90380LGO-BAB-100-TU is configured for X/Y axis (optimized for end-of-shaft), it remains compatible with through-shaft setups using multi-pole magnets off-axis. The datasheet explicitly states X/Y axis supports "two pole magnet end of shaft / on axis and multi-pole magnet off-axis / through-shaft application" in footnote 3 of Table 2.
MLX90380LGO-BAB-100-TU 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-100-TU FAQ
1.How can I place an order for MLX90380LGO-BAB-100-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-100-TU 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-100-TU reliable?
The price and inventory of MLX90380LGO-BAB-100-TU 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-100-TU is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-100-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-100-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-100-TU?
MLX90380LGO-BAB-100-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-100-TU 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-100-TU?
For technical support, including MLX90380LGO-BAB-100-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-100-TU requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-100-TU is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-100-TU 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-100-TU meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-100-TU?
All MLX90380LGO-BAB-100-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-100-TU, 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-100-TU part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-100-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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