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Melexis Technologies NV MLX90380LGO-BAB-400-RE
- Part No.:
- MLX90380LGO-BAB-400-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-400-RE.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,032
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Product details
Overview
MLX90380LGO-BAB-400-RE from Melexis is a dual-die, fully redundant Triaxis® resolver IC delivering true 360° sine/cosine analog outputs for absolute rotary position sensing. 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, and 50 mT full-scale magnetic range.
For engineers reviewing the MLX90380LGO-BAB-400-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 package details, magnetic axis configuration, ratiometric output behavior, and validated alternatives for high-reliability motor control and automotive position feedback systems.
Technical Context
The MLX90380LGO-BAB-400-RE implements Triaxis® Hall technology with two independent monolithic dies in a single TSSOP-16 package, enabling functional redundancy for ASIL-D–capable systems. Its dual analog outputs (OUT1/COS and OUT2/SIN per die) are ratiometric to VDD, with programmable sensitivity and filter bandwidth via external pins.
This variant uses X/Z intrinsic magnetic axis configuration-OUT1 responds to BX, OUT2 to BZ-and is preprogrammed for 50 mT full-scale range with NdFeB magnets. It delivers ≤1° total angular error after dynamic compensation and supports up to 25,000 rpm magnetic rotation speed with 125 kHz Nyquist frequency under high-bandwidth mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog sine/cosine outputs (two independent die channels) |
| Refresh Rate | 4 µs per field component; enables real-time position tracking at >25,000 rpm |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V; supports both 3.3V and 5V MCU interfaces without level shifting |
| Operating Temp | -40°C to +150°C; qualified for under-hood automotive and industrial motor drive environments |
| Magnetic Range | 50 mT full-scale (BAB-400 option); optimized for NdFeB magnets in end-of-shaft or through-shaft configurations |
| Magnetic Axis | X/Z configuration (per datasheet Table 2); OUT1 = COS(BX), OUT2 = SIN(BZ) |
| Angular Accuracy | ≤ ±1° total error with dynamic compensation; linearity error < ±0.5% over 360° |
Pinout & Package
TSSOP-16 package with exposed thermal pad; dual-die layout provides full redundancy across two independent signal chains (Die A and Die B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground connections per die; mandatory for EMC integrity and channel isolation |
| 4, 11 | TEST_A / TEST_B | Factory test access; must be tied to GND for optimal EMC in production |
| 5, 13 | OUT2_B / OUT2_A | Sine output channels (Die B and Die A); ratiometric to respective VDD supply |
| 8, 16 | OUT1_B / OUT1_A | Cosine output channels (Die B and Die A); used with OUT2 for arctan(OUT2/OUT1) angle calculation |
| 6, 14 | VDD5V_B / VDD5V_A | 5V supply inputs per die; VDD3V3 pins must float when using 5V operation |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3V supply inputs per die; VDD5V pins must float when using 3.3V operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die redundancy | Fully independent signal paths (Die A + Die B) in one TSSOP-16 package for fault-tolerant position sensing |
| X/Z magnetic axis | Enables robust through-shaft mounting with orthogonal flux detection (BX and BZ) |
| Programmable bandwidth | Configurable low/medium/high filter settings via external pins to match ADC sampling and mechanical dynamics |
| Ratiometric outputs | Output voltage scales linearly with VDD; eliminates need for precision reference in MCU ADC interface |
| NdFeB magnet optimization | BAB-400 coding ensures factory calibration for neodymium magnets at 50 mT range and X/Z axis |
Applications
| Electric Power Steering (EPS) | Automotive Transmission Sensors |
|---|---|
Use Scenario: Real-time steering angle measurement in column-assist EPS systems requiring ASIL-B/C compliance. IC Role / Device Role / Timing Role: Primary resolver providing dual-channel sine/cosine feedback for motor commutation and torque overlay control. Use Value: Dual-die redundancy enables fail-operational behavior; X/Z axis supports compact through-shaft integration behind steering column. |
Use Scenario: Gear position and clutch engagement sensing in dual-clutch transmissions operating at 150°C under-hood temperatures. IC Role / Device Role / Timing Role: Absolute angular position sensor interfacing with transmission ECU via analog ADC inputs. Use Value: Ratiometric outputs tolerate supply variation; 4 µs update rate supports fast gearshift timing; -40°C to 150°C rating ensures reliability across thermal cycles. |
| Industrial Servo Motor Feedback | Robot Joint Position Sensing |
Use Scenario: High-accuracy rotor position feedback in PMSM servo drives for CNC and packaging machinery. IC Role / Device Role / Timing Role: Resolver replacement delivering true 360° analog outputs compatible with existing MCU-based angle computation firmware. Use Value: 50 mT range matches standard NdFeB rotor magnets; programmable bandwidth adapts to varying mechanical resonance frequencies. |
Use Scenario: Compact joint-angle measurement in collaborative robot arms where space-constrained through-shaft mounting is required. IC Role / Device Role / Timing Role: Contactless position sensor mounted directly on motor shaft with minimal mechanical footprint. Use Value: TSSOP-16 package enables PCB-level integration; X/Z axis allows magnet placement off-axis while maintaining accuracy. |
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-BAB-500-RE | 70 mT full-scale range (vs. 50 mT); identical X/Z axis and NdFeB magnet coding | Better suited for weaker magnetic fields or larger air gaps; requires recalibration of gain scaling in host MCU | Select when magnet strength or mechanical tolerances demand extended range without changing axis or magnet type |
| MLX90380LDC-BAB-400-RE | SOIC-8 single-die package (vs. TSSOP-16 dual-die); same BAB-400 option code and electrical specs | Lacks hardware redundancy; suitable for non-safety-critical applications with space or cost constraints | Choose for cost-sensitive industrial motion control where ASIL compliance is not required |
Compared with MLX90380LGO-BAB-400-RE, the -500 variant extends magnetic range for marginal field conditions, while the SOIC-8 -BAB-400 offers identical functionality without redundancy-enabling trade-offs between safety integrity, size, and system-level fault tolerance requirements.
Availability
MLX90380LGO-BAB-400-RE is available at Aetrix Electronics and suitable for electric power steering, industrial servo motor feedback, and robotic joint position sensing requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LGO-BAB-400-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 applications, with leadership in magnetic position sensing and contactless current measurement.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form, designed specifically for high-accuracy, high-reliability absolute angular position feedback in safety-critical motor control and automotive systems.
FAQ
What is the magnetic axis configuration of MLX90380LGO-BAB-400-RE?
The MLX90380LGO-BAB-400-RE is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 responds to the X-axis magnetic field component (BX) and OUT2 to the Z-axis component (BZ). This enables robust through-shaft mounting where orthogonal flux detection is required, and is confirmed by the "BAB-400" option code per Melexis datasheet Table 2.
Does MLX90380LGO-BAB-400-RE support both 3.3V and 5V supply voltages?
Yes, MLX90380LGO-BAB-400-RE supports dual supply operation: 3.135–3.6 V on VDD3V3 pins and 4.5–5.5 V on VDD5V pins. The device uses separate supply inputs per die (A and B), and only the active supply rail should be powered-the other must remain floating, as specified in Section 9.2 and Figure 12/13 of the datasheet.
What is the full-scale magnetic range programmed into MLX90380LGO-BAB-400-RE?
The "400" suffix in MLX90380LGO-BAB-400-RE indicates a 50 mT full-scale magnetic range, calibrated for NdFeB magnets. This value is factory-programmed and corresponds to a sensitivity of 0.8 %VDD/mT at 5V supply, delivering ±40% VDD output swing at full scale, per Table 2 and Section 12 specifications.
How does the dual-die architecture of MLX90380LGO-BAB-400-RE improve system reliability?
The MLX90380LGO-BAB-400-RE integrates two fully independent signal chains (Die A and Die B) in one TSSOP-16 package, each with dedicated VDD, VSS, and analog outputs. This enables cross-checking, fault detection, and fail-operational behavior-critical for ASIL-D–compliant automotive systems-without requiring external redundancy circuitry or board space.
Can MLX90380LGO-BAB-400-RE be used with ferrite or SmCo magnets?
No-MLX90380LGO-BAB-400-RE is specifically programmed for NdFeB magnets, as indicated by the "BAB" prefix in its option code. Using it with ferrite (BAC) or SmCo (BAA) magnets would result in incorrect sensitivity scaling and degraded angular accuracy, since temperature coefficient compensation and gain settings are magnet-type–specific per Section 12.1 and Table 2.
MLX90380LGO-BAB-400-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:
- 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-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-400-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-400-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-400-RE reliable?
The price and inventory of MLX90380LGO-BAB-400-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-400-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-400-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-400-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-400-RE?
MLX90380LGO-BAB-400-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-400-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-400-RE?
For technical support, including MLX90380LGO-BAB-400-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-400-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-400-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-400-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-400-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-400-RE?
All MLX90380LGO-BAB-400-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-400-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-400-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-400-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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