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Melexis Technologies NV MLX90380LGO-BAB-400-TU
- Part No.:
- MLX90380LGO-BAB-400-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-400-TU.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
MLX90380LGO-BAB-400-TU from Melexis is a dual-die, fully redundant Triaxis® resolver IC for absolute rotary position sensing using rotating permanent magnets. It delivers true 360° sine/cosine analog outputs with 4 µs output refresh rate, ±40%VDD swing, and operates from -40°C to 150°C at 3.3 V or 5 V supply. Designed for end-of-shaft and through-shaft configurations in high-reliability motor control systems.
For engineers reviewing the MLX90380LGO-BAB-400-TU datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 pin mapping, magnetic axis configuration (X/Z), NdFeB magnet compatibility, 40 mT full-scale range, and functional alternatives for automotive-grade angular position sensing.
Technical Context
The MLX90380LGO-BAB-400-TU implements Triaxis® Hall technology with orthogonal and parallel magnetic field sensitivity on a single monolithic die-duplicated into two independent dies in the TSSOP-16 package for functional safety compliance. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and support dynamic angle computation via arctan(OUT2/OUT1).
This variant is factory-programmed for X/Z magnetic axis configuration, NdFeB magnet type (BAB), 40 mT full-scale range (xx0), 3.3 V supply voltage (0xx), and high bandwidth mode (4xx). The internal chopping frequency is 1 MHz, tracking delay is 12 µs, and total angular error with dynamic compensation is ±1°.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time rotor position tracking up to 25,000 rpm with 1.6 samples/degree resolution. |
| Full-Scale Magnetic Range | 40 mT - Optimized for NdFeB magnets in end-of-shaft or through-shaft configurations with ±40%VDD output swing. |
| Operating Supply | 3.3 V - High-bandwidth operation with 12 µs tracking delay; VDD3V3 must be powered, VDD5V left floating. |
| Temperature Range | -40°C to 150°C - Qualified for under-hood automotive and industrial motor control environments. |
| Magnetic Axis | X/Z - OUT1 measures BX (COS), OUT2 measures BZ (SIN); supports off-axis through-shaft applications. |
| Package | TSSOP-16 - Dual-die fully redundant architecture meeting ASIL-B functional safety requirements. |
| Total Angular Error | ±1° with dynamic compensation - Achieved via external ECU offset/gain correction applied before arctan calculation. |
Pinout & Package
TSSOP-16 package with dual-die redundancy: Die A (pins 1,4,13–16) and Die B (pins 5–9,11) operate independently for fault-tolerant position sensing. All NC pins and TEST pins must be connected to ground for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Dedicated ground terminals per die; mandatory separation prevents cross-die noise coupling. |
| 5, 13 | OUT2_B / OUT2_A | Sine output channels for each die; used for redundancy validation or differential angle computation. |
| 8, 16 | OUT1_B / OUT1_A | Cosine output channels for each die; ratiometric to respective VDD supply rail. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - left floating in 3.3 V operation per datasheet requirement. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - both must be powered for dual-die operation in this variant. |
| 4, 11 | TEST_A / TEST_B | Factory test access points - grounded in application to suppress EMI and ensure stable biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X) magnetic field detection enables robust 3D position measurement without mechanical alignment constraints. |
| Programmable Bandwidth | High-bandwidth mode (12 µs tracking delay) supports fast-response motor control loops up to 25,000 rpm with minimal phase lag. |
| Ratiometric Outputs | Output voltages scale linearly with VDD, eliminating need for precision reference voltage and simplifying ADC interface design. |
| Redundant Dual-Die Architecture | Independent signal chains in one TSSOP-16 package enable cross-checking for ISO 26262 ASIL-B compliance in safety-critical systems. |
| Field-Programmable Configuration | Magnetic axis (X/Z), sensitivity range (40 mT), and supply voltage (3.3 V) are factory-set but retain EEPROM programmability for post-soldering calibration. |
Applications
| Brushless Motor Control | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Real-time rotor position feedback for field-oriented control (FOC) of PMSM and BLDC motors in traction inverters. IC Role / Device Role / Timing Role: Resolver substitute delivering synchronized sine/cosine analog outputs for high-speed angle reconstruction. Use Value: 4 µs update rate and ±1° compensated accuracy enable precise torque ripple suppression and smooth low-speed operation. |
Use Scenario: Absolute steering angle measurement in column-assist and rack-assist EPS modules. IC Role / Device Role / Timing Role: Redundant angular sensor providing primary and backup position signals to dual-core safety MCU. Use Value: Dual-die TSSOP-16 architecture meets ASIL-B fault coverage requirements while maintaining compact PCB footprint. |
| Industrial Servo Drives | Hybrid/EV Transmission Sensors |
|
Use Scenario: High-temperature position feedback in servo motor feedback loops operating near gearboxes or hydraulic systems. IC Role / Device Role / Timing Role: Contactless 360° resolver replacement with extended temperature range (-40°C to 150°C). Use Value: X/Z magnetic axis configuration supports compact through-shaft mounting, reducing mechanical assembly complexity. |
Use Scenario: Gear position and clutch engagement sensing in multi-speed electric transmissions. IC Role / Device Role / Timing Role: Absolute position sensor interfacing with transmission control unit (TCU) via analog front-end. Use Value: NdFeB-optimized 40 mT range ensures stable output across wide air-gap tolerances typical in transmission housings. |
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-BAA-400-RE | SmCo magnet calibration instead of NdFeB; identical X/Z axis, 40 mT range, and TSSOP-16 package. | Better high-temperature stability above 120°C; lower sensitivity drift vs. NdFeB in thermal cycling. | Select when operating ambient exceeds 120°C or long-term magnet aging is a concern. |
| MLX90380LDC-BAB-400-RE | SOIC-8 single-die version; same magnetic specs and programming but no redundancy. | Lacks dual-die fault tolerance; suitable for non-safety-critical cost-sensitive applications. | Choose for space-constrained designs where ASIL-B compliance is not required. |
Compared with MLX90380LGO-BAB-400-TU, the SmCo-based BAA variant offers superior thermal stability for extreme under-hood use, while the SOIC-8 LDC variant reduces cost and board area at the expense of functional safety capability.
Availability
MLX90380LGO-BAB-400-TU is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo drives requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LGO-BAB-400-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 driver ICs for automotive and industrial applications, with core expertise in magnetic sensing and embedded signal processing.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® Hall technology, targeting high-reliability motor control, steering, and transmission systems where resolver-level accuracy and robustness are required.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-400-TU?
The MLX90380LGO-BAB-400-TU is factory-programmed for X/Z magnetic axis configuration: OUT1 measures the X-component (COS) and OUT2 measures the Z-component (SIN) of the applied magnetic field. This supports through-shaft off-axis mounting with two-pole magnets and is confirmed by its BAB-400 option code per Melexis datasheet Table 2.
Does MLX90380LGO-BAB-400-TU support both 3.3 V and 5 V operation?
No - MLX90380LGO-BAB-400-TU is configured for 3.3 V operation only (indicated by "0" in the third digit of BAB-400). VDD3V3 pins must be powered; VDD5V pins must remain floating. Attempting 5 V operation violates the programmed bandwidth and supply specification and may cause output instability.
What does the "400" in MLX90380LGO-BAB-400-TU signify?
The "400" denotes three programmed parameters: "4" = 40 mT full-scale magnetic range, "0" = 3.3 V supply voltage, and "0" = X/Y magnetic axis - however, per Melexis documentation, BAB-400 specifically maps to X/Z axis due to magnet type (NdFeB) and axis coding rules. The "400" suffix confirms high-bandwidth mode, 40 mT range, and 3.3 V supply.
How is redundancy implemented in MLX90380LGO-BAB-400-TU?
MLX90380LGO-BAB-400-TU uses a dual-die TSSOP-16 package with fully independent signal chains: Die A (pins 1,4,13–16) and Die B (pins 5–9,11) each provide complete COS/SIN outputs, supply rails, and ground. This enables cross-die comparison for fault detection per ISO 26262 ASIL-B requirements.
Can MLX90380LGO-BAB-400-TU be reprogrammed after soldering?
Yes - MLX90380LGO-BAB-400-TU retains EEPROM-based programmability via the TEST pins and supply rails. Parameters including sensitivity range, magnetic axis, and bandwidth can be updated in-system using Melexis' PTCLink tool and appropriate programming sequence, as documented in the MLX90380 User Interface description.
MLX90380LGO-BAB-400-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:
- 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-BAB-400-TU FAQ
1.How can I place an order for MLX90380LGO-BAB-400-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-400-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-400-TU reliable?
The price and inventory of MLX90380LGO-BAB-400-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-400-TU is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-400-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-400-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-400-TU?
MLX90380LGO-BAB-400-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-400-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-400-TU?
For technical support, including MLX90380LGO-BAB-400-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-400-TU requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-400-TU is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-400-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-400-TU meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-400-TU?
All MLX90380LGO-BAB-400-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-400-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-400-TU part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-400-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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