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Melexis Technologies NV MLX90380LGO-BAB-023-RE
- Part No.:
- MLX90380LGO-BAB-023-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-023-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,258
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Product details
Overview
MLX90380LGO-BAB-023-RE from Melexis is a 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 for end-of-shaft or through-shaft motor rotor position feedback in BLDC and PMSM systems.
For engineers reviewing the MLX90380LGO-BAB-023-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 pin mapping, magnetic axis (X/Z), NdFeB magnet compatibility, 30 mT full-scale range, and high-bandwidth programming mode - all confirmed for this exact variant.
Technical Context
The MLX90380LGO-BAB-023-RE implements Triaxis® Hall technology with orthogonal and parallel magnetic field sensitivity, enabling precise angular computation from rotating permanent magnets. Its dual-die TSSOP-16 architecture delivers fully redundant sine/cosine outputs per die (OUT1_A/OUT2_A and OUT1_B/OUT2_B), supporting functional safety requirements.
This variant is factory-programmed for X/Z magnetic axis configuration, NdFeB magnet type, 30 mT full-scale magnetic range, and high-bandwidth mode (5 V supply, 4 µs update period). Output tracking delay is 12 µs, and sensitivity is calibrated to ~1.33 %VDD/mT for X-axis and half that (~0.66 %VDD/mT) for Z-axis per datasheet Section 12 footnote 12.
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. |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - supports dual-rail MCU interfaces without level-shifting. |
| Operating Temperature | −40 °C to +150 °C - qualified for under-hood automotive and industrial motor control environments. |
| Full-Scale Magnetic Range | 30 mT - optimized for NdFeB magnets in compact end-of-shaft configurations with ±40% VDD output swing. |
| Magnetic Axis | X/Z - OUT1 measures BX, OUT2 measures BZ; enables off-axis through-shaft mounting with 50% BZ/BXY ratio. |
| Output Type | Ratiometric sine/cosine analog - maintains proportionality to VDD, simplifying ADC reference coupling and reducing supply noise sensitivity. |
| Bandwidth Mode | High bandwidth (BAx-023 suffix) - 12 µs tracking delay, Nyquist frequency 125 kHz, suitable for fast dynamic torque control loops. |
Pinout & Package
TSSOP-16 package with dual-die redundancy: two independent sensor dies (Die A and Die B), each with dedicated ground, supply, test, and analog output pins - enabling ASIL-D capable fault detection architectures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns per die - critical for noise isolation and fault discrimination in redundant systems. |
| 4, 11 | TEST_A / TEST_B | Factory test access; must be tied to GND for optimal EMC per datasheet Section 9.2. |
| 5, 13 | OUT2_B / OUT2_A | Sine output channels - used with ATAN(OUT2/OUT1) to compute absolute angle; ratiometric to respective VDD rail. |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - for high-bandwidth mode; VDD3V3 pins must remain floating when using 5 V. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - unused in this variant; left floating per datasheet requirement for 5 V operation. |
| 8, 16 | OUT1_B / OUT1_A | Cosine output channels - paired with corresponding OUT2 for arctangent computation; matched gain/offset within die. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X/Y) field measurement - eliminates need for external flux concentrators in X/Z mode. |
| Programmable Magnetic Axis | X/Z configuration selected at factory - supports through-shaft mounting with single-pole magnet and minimal mechanical offset. |
| Dual-Die Redundancy | Independent signal chains (A and B) in one TSSOP-16 package - enables cross-checking and diagnostic coverage per ISO 26262. |
| High-Speed Analog Outputs | 4 µs update period with 12 µs tracking delay - meets timing constraints of field-oriented control (FOC) loops operating >10 kHz. |
| NdFeB Magnet Optimization | BAB-023 option code - calibrated sensitivity and temperature coefficient for neodymium magnets, ensuring <±1° total angular error with dynamic compensation. |
Applications
| Electric Power Steering (EPS) | Automotive Transmission Sensors |
|---|---|
|
Use Scenario: Real-time rotor angle feedback for brushless assist motor in column-assist EPS systems exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Primary resolver providing 360° absolute position to motor controller MCU via ratiometric analog outputs synchronized to PWM switching. Use Value: Enables torque ripple reduction and smooth low-speed assist by delivering sub-degree angular accuracy at 12 µs latency under −40 °C to +150 °C conditions. |
Use Scenario: Gear position and clutch actuator shaft angle sensing in dual-clutch transmissions (DCT) requiring functional safety compliance. IC Role / Device Role / Timing Role: Dual-die redundant resolver supplying independent sine/cosine pairs to separate safety channels for ASIL-C monitoring. Use Value: Supports diagnostic coverage >90% via cross-die comparison, meeting ISO 26262 hardware metrics without external watchdog circuitry. |
| Industrial Servo Drives | Pump & Compressor Motor Control |
|
Use Scenario: High-precision rotor position feedback in closed-loop vector-controlled servo motors driving CNC axes or robotic joints. IC Role / Device Role / Timing Role: Resolver IC interfacing directly to 12-bit+ SAR ADCs in motion controller ASICs, with ratiometric outputs eliminating VREF drift errors. Use Value: Delivers 0.5% linearity over full scale and <±1° compensated angular error - enabling <0.01° positioning repeatability in multi-turn applications. |
Use Scenario: Rotor angle sensing in HVAC compressor BLDC motors operating continuously at elevated ambient temperatures (>105 °C). IC Role / Device Role / Timing Role: Contactless position sensor mounted on motor end-bell, measuring magnet rotation without bearings or slip rings. Use Value: Eliminates mechanical wear and EMI susceptibility of potentiometers; sustains 150 °C junction temperature rating with no derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar resolver sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LGO-BAB-025-RE | Same package and magnetic axis, but 60 mT full-scale range and medium-bandwidth mode (29.5 µs tracking delay). | Better suited for lower-speed, high-torque applications where extended magnetic range compensates for magnet misalignment. | Select when magnet air gap varies >±0.5 mm or when system bandwidth demand is <5 kHz. |
| MLX90380LGO-BAB-043-RE | Same 30 mT range and high-bandwidth mode, but configured for Z/Y magnetic axis instead of X/Z. | Optimized for off-axis through-shaft mounting with radial magnet orientation rather than axial. | Choose when mechanical layout requires magnet placement perpendicular to IC surface (Z/Y) versus parallel (X/Z). |
Compared with MLX90380LGO-BAB-025-RE and MLX90380LGO-BAB-043-RE, the MLX90380LGO-BAB-023-RE uniquely combines X/Z axis, 30 mT range, and 12 µs tracking delay - making it optimal for compact, high-dynamic-response end-of-shaft BLDC applications where magnet proximity and loop speed are critical.
Availability
MLX90380LGO-BAB-023-RE is available at Aetrix Electronics and suitable for electric power steering, automotive transmission control, industrial servo drives, and HVAC compressor motor control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LGO-BAB-023-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, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® resolver solutions for high-reliability angular position sensing in safety-critical motor control systems, emphasizing robustness, programmability, and dual-die redundancy for functional safety compliance.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-023-RE?
The MLX90380LGO-BAB-023-RE is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 measures the X-component (BX) and OUT2 measures the Z-component (BZ) of the applied magnetic field. This enables through-shaft mounting with axial magnet orientation and supports sensitivity mismatch calibration per datasheet Section 8.2.
Does MLX90380LGO-BAB-023-RE support both 3.3 V and 5 V supply rails simultaneously?
No - MLX90380LGO-BAB-023-RE operates exclusively from a 5 V supply (VDD5V pins active), as indicated by its "023" option code (BAx-023 = 5 V, high bandwidth). The VDD3V3 pins must remain floating per datasheet Section 9.2 to avoid supply contention and ensure correct high-bandwidth timing behavior.
What is the full-scale magnetic range and sensitivity of MLX90380LGO-BAB-023-RE?
The MLX90380LGO-BAB-023-RE has a 30 mT full-scale magnetic range (BAB-023 suffix), with nominal sensitivity of ~1.33 %VDD/mT for the X-axis and ~0.66 %VDD/mT for the Z-axis (per datasheet footnote 12). This matches NdFeB magnet characteristics and ensures ±40% VDD output swing at full scale.
How does the dual-die TSSOP-16 package enhance functional safety in MLX90380LGO-BAB-023-RE?
The MLX90380LGO-BAB-023-RE integrates two independent sensor dies (Die A and Die B) in one TSSOP-16 package, each with separate power, ground, and analog outputs. This allows real-time cross-die comparison of sine/cosine signals to detect faults such as open-circuit, short-to-rail, or magnetic interference - satisfying ASIL-D diagnostic coverage requirements.
Can MLX90380LGO-BAB-023-RE be used with a SmCo magnet?
No - the "BAB" prefix in MLX90380LGO-BAB-023-RE explicitly denotes NdFeB magnet optimization (per Table 2). Using a SmCo magnet would cause significant sensitivity and temperature coefficient mismatch, degrading angular accuracy beyond datasheet specifications. For SmCo, select a BAA-xxx variant instead.
MLX90380LGO-BAB-023-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:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- -
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- -
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 3.3V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
MLX90380LGO-BAB-023-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-023-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-023-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-023-RE reliable?
The price and inventory of MLX90380LGO-BAB-023-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-023-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-023-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-023-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-023-RE?
MLX90380LGO-BAB-023-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-023-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-023-RE?
For technical support, including MLX90380LGO-BAB-023-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-023-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-023-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-023-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-023-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-023-RE?
All MLX90380LGO-BAB-023-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-023-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-023-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-023-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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