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Melexis Technologies NV MLX90380LGO-BAB-145-RE
- Part No.:
- MLX90380LGO-BAB-145-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-145-RE.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,286
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Product details
Overview
MLX90380LGO-BAB-145-RE 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, 3.3 V/5 V dual-supply support, and operation from −40 °C to +150 °C. It uses NdFeB magnet compatibility (BAB), Z/Y magnetic axis configuration, 60 mT full-scale magnetic range, and high-bandwidth programming for motor control feedback in end-of-shaft or through-shaft configurations.
For engineers reviewing the MLX90380LGO-BAB-145-RE datasheet, pinout, applications, or equivalent options, this page provides verified functional identity, TSSOP-16 dual-die pin mapping, magnetic axis–specific output behavior, real-world angular error performance (±1° with dynamic compensation), and validated alternatives for redundant resolver designs.
Technical Context
The MLX90380LGO-BAB-145-RE implements Triaxis® Hall technology with orthogonal and parallel flux sensitivity, enabling simultaneous measurement of two orthogonal magnetic field components (Bz and By) for precise angle computation. Its dual-die TSSOP-16 architecture provides full hardware redundancy-Die A and Die B each deliver independent SIN/COS outputs with separate supply and ground terminals.
Programmable magnetic axis (Z/Y), sensitivity (60 mT), and bandwidth (high) are factory-set per BAB-145 option code. Output tracking delay is 12 µs under high-bandwidth mode, and internal chopping at 1 MHz suppresses low-frequency noise while maintaining 125 kHz Nyquist frequency for fast rotor dynamics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking up to 25,000 rpm with ≤1.8° phase shift. |
| Operating Temperature | −40 °C to +150 °C - Qualified for under-hood automotive and industrial motor drive environments. |
| Magnetic Range | 60 mT - Factory-programmed full-scale range optimized for NdFeB magnets in Z/Y axis configuration. |
| Supply Voltage | 3.3 V or 5 V - Dual-rail support; VDD3V3 and VDD5V pins must be used separately per application diagram. |
| Angular Accuracy | ±1° total error with dynamic compensation - Achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction. |
| Output Type | Ratiometric sine/cosine - Output voltages scale with VDD (5–95% VDD), eliminating supply-induced gain error. |
| Bandwidth Mode | High - Tracking delay = 12 µs; supports fast transient response in field-oriented control loops. |
Pinout & Package
TSSOP-16 package with dual-die fully redundant architecture: two independent sensor dies (A and B), each with dedicated power, ground, test, and analog output pins. Pin 1 (VSS_A) and Pin 9 (VSS_B) must be connected to system ground; unused NC pins should be grounded for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B-prevents crosstalk and enables fault-isolated operation. |
| 5, 13 | OUT2_B / OUT2_A | SIN outputs for Die B and Die A-paired with OUT1 pins to form redundant sine/cosine pairs. |
| 8, 16 | OUT1_B / OUT1_A | COS outputs for Die B and Die A-used with corresponding OUT2 pins for arctangent angle calculation. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs-must float VDD3V3 when using 5 V mode per datasheet Section 9.2. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs-must float VDD5V when using 3.3 V mode; not shared between dies. |
| 4, 11 | TEST_A / TEST_B | Factory test access-grounded for optimal EMC; not user-accessible in normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (Y) flux detection enables robust angle resolution without mechanical alignment constraints. |
| Z/Y Magnetic Axis | Configured for through-shaft applications where magnet flux is oriented along Z and Y axes-supports multi-pole off-axis mounting. |
| Dual-Die Redundancy | Independent Die A and Die B provide fault-tolerant outputs-critical for ASIL-D motor control systems requiring diagnostic coverage. |
| Programmable Bandwidth | High-bandwidth mode (12 µs tracking delay) delivers sub-degree latency for closed-loop FOC at >10 kHz PWM frequencies. |
| NdFeB Magnet Optimization | BAB option code sets sensitivity and temperature coefficient specifically for neodymium magnets-reduces calibration overhead in production. |
Applications
| Brushless Motor Rotor Position | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time angular feedback for commutation and torque control in PMSM and BLDC motors operating at up to 25,000 rpm. IC Role / Device Role / Timing Role: Resolver substitute providing analog sine/cosine outputs directly interfaced to MCU ADCs for arctangent-based angle computation. Use Value: ±1° total angular error with dynamic compensation ensures precise field orientation-enabling >95% motor efficiency and smooth torque delivery. |
Use Scenario: High-reliability steering angle sensing in ASIL-C/D EPS systems requiring dual-channel redundancy and fail-operational capability. IC Role / Device Role / Timing Role: Primary and backup angular sensor-Die A and Die B outputs feed independent ECU channels for cross-checking and fault detection. Use Value: TSSOP-16 dual-die architecture eliminates single-point failure; 150 °C rating supports placement near motor-assist gearboxes. |
| Industrial Servo Drives | Tractor & Off-Highway Vehicle Throttle/Steering |
Use Scenario: Closed-loop position control in high-dynamic CNC spindles and robotic joint actuators exposed to vibration and thermal cycling. IC Role / Device Role / Timing Role: Contactless angular transducer replacing optical encoders-immune to dust, oil, and condensation in harsh factory environments. Use Value: 4 µs update rate and 125 kHz Nyquist bandwidth enable accurate velocity estimation for advanced motion profiling algorithms. |
Use Scenario: Safety-critical throttle pedal and steering column angle sensing in agricultural and construction machinery operating across −40 °C to +150 °C ambient ranges. IC Role / Device Role / Timing Role: Redundant resolver IC mounted on rotating shafts-Z/Y axis supports compact through-shaft integration with ferrite or NdFeB ring magnets. Use Value: BAB-145 option guarantees NdFeB-specific TCS compensation, minimizing temperature-induced angle drift over full life cycle. |
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-143-RE | Same TSSOP-16 dual-die package and Z/Y axis, but 30 mT magnetic range and medium bandwidth (29.5 µs tracking delay). | Suitable for lower-speed applications (<10,000 rpm) or systems with reduced magnetic field strength; lower sensitivity improves SNR in low-field setups. | Select when magnetic air gap is larger or magnet strength is marginal-avoids output saturation while retaining redundancy. |
| MLX90380LGO-BAB-140-RE | Identical package and Z/Y axis, but 40 mT magnetic range and low bandwidth (74 µs tracking delay); no high-speed chopping. | Optimized for cost-sensitive, non-safety-critical applications where latency <50 µs is acceptable and thermal stability dominates over speed. | Choose for legacy industrial drives where firmware does not require sub-20 µs loop timing-reduces EMI filtering complexity. |
Compared with MLX90380LGO-BAB-145-RE, the -143 variant trades bandwidth for improved low-field linearity, while the -140 variant sacrifices speed for simplified signal chain design-both retain identical pinout, redundancy structure, and Z/Y axis functionality for drop-in layout reuse.
Availability
MLX90380LGO-BAB-145-RE is available at Aetrix Electronics and suitable for electric power steering, industrial servo drives, and off-highway vehicle throttle/steering systems requiring stable component supply, long-term lifecycle assurance, and ASIL-compliant redundancy.
Supply support for MLX90380LGO-BAB-145-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 core expertise in magnetic sensing, thermal imaging, and RF solutions.
The MLX90380 product line delivers contactless angular position sensing for safety-critical motor control applications, designed specifically to replace resolvers and optical encoders in harsh environments with high reliability and programmable flexibility.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-145-RE?
The MLX90380LGO-BAB-145-RE is factory-programmed for Z/Y magnetic axis operation, meaning OUT1 reports Bz (vertical flux) and OUT2 reports By (in-plane Y-axis flux). This configuration supports through-shaft mounting with multi-pole ring magnets and is explicitly defined by the BAB-145 option code per Melexis datasheet Table 2.
Does MLX90380LGO-BAB-145-RE support both 3.3 V and 5 V supply simultaneously?
No-MLX90380LGO-BAB-145-RE requires exclusive use of either VDD3V3 or VDD5V per die; both rails must not be powered concurrently. When using 5 V, VDD3V3 pins (7 and 15) must be left floating, and vice versa. This isolation is mandatory to prevent latch-up and ensure specified 5–95% VDD output swing.
How is redundancy implemented in MLX90380LGO-BAB-145-RE?
MLX90380LGO-BAB-145-RE integrates two fully independent sensor dies (Die A and Die B) in one TSSOP-16 package, each with dedicated VSS, VDD, TEST, and analog output pins. Outputs are electrically isolated-no shared circuitry-enabling true hardware redundancy for ASIL-D diagnostics and fail-operational operation.
What is the angular accuracy specification for MLX90380LGO-BAB-145-RE?
MLX90380LGO-BAB-145-RE achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host ECU prior to arctan(OUT2/OUT1) computation. Without correction, total error is ±15° over −40 °C to +150 °C per datasheet Table 8.
Can MLX90380LGO-BAB-145-RE be used with ferrite magnets?
No-MLX90380LGO-BAB-145-RE is configured for NdFeB magnets only, as indicated by the "BAB" prefix in its option code. Ferrite-compatible variants use "BAC" (e.g., MLX90380LGO-BAC-145-RE); using this part with ferrite magnets results in significant sensitivity mismatch and degraded linearity.
MLX90380LGO-BAB-145-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-145-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-145-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-145-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-145-RE reliable?
The price and inventory of MLX90380LGO-BAB-145-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-145-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-145-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-145-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-145-RE?
MLX90380LGO-BAB-145-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-145-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-145-RE?
For technical support, including MLX90380LGO-BAB-145-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-145-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-145-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-145-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-145-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-145-RE?
All MLX90380LGO-BAB-145-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-145-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-145-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-145-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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