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Melexis Technologies NV MLX90380LGO-BAB-125-RE
- Part No.:
- MLX90380LGO-BAB-125-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-125-RE.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
MLX90380LGO-BAB-125-RE from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via dual ratiometric sine/cosine analog outputs. It operates from 3.3V or 5V supply, supports -40°C to 150°C ambient, features 4 µs output refresh rate, and is factory-programmed for NdFeB magnet compatibility, X/Z magnetic axis configuration, and 60 mT full-scale magnetic range. It serves as the core position feedback element in high-reliability brushless motor control systems.
For engineers reviewing the MLX90380LGO-BAB-125-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 package details, magnetic axis behavior, real-world angular error performance, and validated alternative options for automotive and industrial motor control designs.
Technical Context
The MLX90380LGO-BAB-125-RE implements Triaxis® Hall technology with integrated signal conditioning to resolve orthogonal (X/Z) magnetic field components. Its dual-die TSSOP-16 architecture delivers fully redundant sine/cosine outputs-OUT1_A/OUT2_A from Die A and OUT1_B/OUT2_B from Die B-enabling functional safety compliance in ASIL-C systems.
Programmable filter bandwidth (high/medium/low), selectable sensitivity (60 mT full scale), and X/Z axis alignment support both end-of-shaft and through-shaft magnet configurations. Output tracking delay is 12 µs under high-bandwidth mode, and total angular error is ±1° with dynamic compensation applied externally.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables >25,000 rpm rotor speed measurement with 1.6 samples/degree resolution at max speed. |
| Operating Supply | 3.3V or 5V - Dual-supply pins (VDD3V3_A/B, VDD5V_A/B) allow independent rail selection per die; 3.3V rail must float when using 5V mode. |
| Full-Scale Magnetic Range | 60 mT - Factory-programmed sensitivity for NdFeB magnets; delivers ±40% VDD output swing at TA = 25°C. |
| Magnetic Axis | X/Z - OUT1 measures Bz (Z-axis flux), OUT2 measures Bx (X-axis flux); supports off-axis through-shaft applications. |
| Temperature Range | -40°C to +150°C - Qualified for under-hood automotive and industrial motor drive environments; junction limit 165°C. |
| Angular Accuracy | ±1° total error with dynamic compensation - Achieved via external ECU offset/gain/phase correction of raw SIN/COS outputs before arctan computation. |
| Output Type | Ratiometric analog - Output voltage scales linearly with VDD; enables robust ADC interfacing without separate reference voltage. |
Pinout & Package
TSSOP-16 package with exposed thermal pad; dual-die layout provides redundancy across two independent sensor channels (Die A and Die B). Pin numbering follows standard JEDEC TSSOP-16 convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for each die; mandatory low-impedance connection to PCB ground plane for EMC and accuracy. |
| 4, 11 | TEST_A / TEST_B | Factory test access points; must be connected to ground for optimal EMC performance in final design. |
| 5, 13 | OUT2_B / OUT2_A | Sine output channels - Die B and Die A respectively; ratiometric analog voltage proportional to Bx component. |
| 8, 16 | OUT1_B / OUT1_A | Cosine output channels - Die B and Die A respectively; ratiometric analog voltage proportional to Bz component. |
| 6, 14 | VDD5V_B / VDD5V_A | 5V supply inputs for each die; used when operating at 5V; VDD3V3 pins must remain floating in this mode. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3V supply inputs for each die; used when operating at 3.3V; VDD5V pins must remain floating in this mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die redundancy | Fully independent sensor dies in single TSSOP-16 package enable ASIL-C compliant fault detection and cross-checking. |
| X/Z magnetic axis | Enables accurate position sensing with off-axis, through-shaft magnet arrangements where Z-axis flux dominates. |
| 60 mT full-scale range | Optimized for NdFeB magnets; maximizes signal-to-noise ratio and reduces susceptibility to stray field interference. |
| 4 µs update period | Supports real-time field-oriented control (FOC) loops at up to 250 krps electrical speed without interpolation lag. |
| Ratiometric outputs | Eliminates need for precision voltage reference; output scaling tracks VDD variations, simplifying MCU ADC interface. |
Applications
| Brushless Motor Control | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Closed-loop commutation of PMSM or BLDC motors in traction inverters and servo drives. IC Role / Device Role / Timing Role: Primary angular position resolver feeding FOC algorithm; replaces traditional resolvers and optical encoders. Use Value: ±1° dynamic angular accuracy enables precise torque vectoring and smooth low-speed operation down to zero RPM. |
Use Scenario: Real-time steering angle and torque feedback in ASIL-D EPS ECUs. IC Role / Device Role / Timing Role: Redundant position sensor providing primary and backup signals to dual-core safety MCU. Use Value: Dual-die TSSOP-16 architecture meets ISO 26262 hardware fault tolerance requirements without external duplication. |
| Industrial Servo Drives | Robot Joint Actuation |
Use Scenario: High-bandwidth position feedback in CNC spindles and robotic arm joints requiring <10 µs latency. IC Role / Device Role / Timing Role: Resolver substitute delivering analog SIN/COS outputs directly compatible with legacy resolver-to-digital converters (RDCs). Use Value: 4 µs output update and 12 µs tracking delay ensure minimal phase lag in current-loop control at 10 kHz PWM frequencies. |
Use Scenario: Compact, high-temperature position sensing inside sealed robotic joint housings near motors. IC Role / Device Role / Timing Role: Contactless angular transducer mounted on motor shaft; tolerant of mechanical misalignment and vibration. Use Value: -40°C to +150°C operation and X/Z axis configuration allow direct integration into gearmotor assemblies without external shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar resolver replacement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LGO-BAB-100-RE | Same TSSOP-16 package and X/Z axis, but 40 mT full-scale range and low-bandwidth programming (74 µs tracking delay). | Lower magnetic sensitivity suits smaller NdFeB magnets; reduced bandwidth limits max usable speed to ~10,000 rpm. | Select when cost-sensitive designs use compact magnets and do not require >15,000 rpm operation. |
| MLX90380LGO-BAB-105-RE | Same TSSOP-16 and X/Z axis, but 60 mT range with medium-bandwidth programming (29.5 µs tracking delay) instead of high-bandwidth (12 µs). | Trade-off between noise immunity and latency: 29.5 µs delay vs. 12 µs, with improved SNR over high-bandwidth mode. | Select for applications prioritizing signal integrity over absolute minimum latency, such as mid-speed industrial pumps. |
Compared with MLX90380LGO-BAB-125-RE, the -100-RE variant offers lower sensitivity and higher latency for cost-constrained systems, while the -105-RE variant retains 60 mT range but trades 12 µs latency for better noise rejection-making it suitable where EMI is dominant over speed.
Availability
MLX90380LGO-BAB-125-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo drives requiring stable component supply across automotive production lifecycles and industrial equipment refresh cycles.
Supply support for MLX90380LGO-BAB-125-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 markets, with expertise in magnetic sensing, thermal imaging, and wireless charging.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for high-reliability motor control, targeting applications where resolver-level accuracy, temperature resilience, and functional safety are critical.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-125-RE?
The MLX90380LGO-BAB-125-RE is factory-programmed for X/Z magnetic axis operation: OUT1 measures the Z-axis magnetic flux (Bz) and OUT2 measures the X-axis flux (Bx). This configuration supports through-shaft magnet placements where the dominant field component is orthogonal to the IC surface, enabling robust off-axis sensing in compact motor assemblies.
How does the 60 mT full-scale range affect system design with MLX90380LGO-BAB-125-RE?
The 60 mT full-scale range of MLX90380LGO-BAB-125-RE is optimized for NdFeB magnets and delivers ±40% VDD output swing at 25°C. This allows maximum utilization of the MCU's ADC input range while maintaining sufficient headroom against saturation-reducing susceptibility to stray fields and enabling reliable operation even with magnet aging or thermal drift.
Can MLX90380LGO-BAB-125-RE operate from both 3.3V and 5V supplies simultaneously?
No. MLX90380LGO-BAB-125-RE must be powered from either the 3.3V supply (VDD3V3_A/B) or the 5V supply (VDD5V_A/B), not both. When using 5V, the VDD3V3 pins must be left floating; when using 3.3V, the VDD5V pins must be left floating. Mixing supplies risks undefined behavior and violates absolute maximum ratings.
What is the significance of the "BAB" option code in MLX90380LGO-BAB-125-RE?
The "BAB" in MLX90380LGO-BAB-125-RE indicates NdFeB magnet compatibility (first "B"), X/Z magnetic axis with equal sensitivity (second "A"), and high-bandwidth programming mode (third "B", digit "5" in "125"). The "125" suffix confirms 60 mT full-scale range (digit "5"), X/Z axis (digit "2"), and high-bandwidth mode (digit "5").
Does MLX90380LGO-BAB-125-RE require external calibration for angular accuracy?
MLX90380LGO-BAB-125-RE achieves ±10° total angular error without correction and ±1° with dynamic compensation applied externally by the host MCU. Calibration is not required for basic operation, but offset, gain, and phase correction of the raw SIN/COS outputs-performed before arctan(OUT2/OUT1)-is necessary to reach specified ±1° accuracy in production systems.
MLX90380LGO-BAB-125-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-BAB-125-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-125-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-125-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-BAB-125-RE reliable?
The price and inventory of MLX90380LGO-BAB-125-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-BAB-125-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-125-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-125-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-125-RE?
MLX90380LGO-BAB-125-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-125-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-BAB-125-RE?
For technical support, including MLX90380LGO-BAB-125-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-125-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-125-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-125-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-BAB-125-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-125-RE?
All MLX90380LGO-BAB-125-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-125-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-BAB-125-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-125-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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