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Melexis Technologies NV MLX90380LDC-BAB-100-RE
- Part No.:
- MLX90380LDC-BAB-100-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-100-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
MLX90380LDC-BAB-100-RE from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs with 4 µs output refresh rate, 3.3 V or 5 V supply operation, and -40°C to 150°C operating temperature range. It uses NdFeB magnet sensitivity calibration (BAB), X/Y magnetic axis configuration, and high-bandwidth programming for brushless motor rotor angle sensing in automotive EPS and industrial servo drives.
For engineers reviewing the MLX90380LDC-BAB-100-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis selection, ratiometric output behavior, and validated alternatives for absolute angular position sensing in high-temperature motor control systems.
Technical Context
The MLX90380LDC-BAB-100-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, enabling direct interfacing with MCU ADCs without external reference scaling.
This variant is factory-programmed for NdFeB magnets (BAB), X/Y magnetic axis (BAA-x0x pattern per datasheet Table 2), and high-bandwidth mode (BAx-1xx → 5 V supply + high BW). The 4 µs update period supports real-time field-oriented control at up to 25,000 rpm with ≤1° total angular error after dynamic compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time rotor angle tracking for FOC at >25,000 rpm |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - Dual-rail support allows system-level voltage architecture flexibility |
| Operating Temperature | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments |
| Magnetic Axis | X/Y - Supports end-of-shaft configurations with two-pole magnets and equal sensitivity on both axes |
| Sensitivity Range | 40 mT full-scale - Factory-programmed for NdFeB magnets (BAB-100), optimized for 5 V high-BW operation |
| Output Type | Ratiometric sine/cosine analog - Output swing is %VDD, eliminating need for external voltage reference |
| Total Angular Error | ±1° with dynamic compensation - Achievable via off-chip arctan(OUT2/OUT1) with offset/gain correction |
Pinout & Package
MLX90380LDC-BAB-100-RE is housed in an SOIC-8 package (JEDEC MS-012AC) with 1.27 mm pitch, 4.9 mm × 3.9 mm body, and exposed pad not connected internally. Pin 1 is marked by a beveled corner; pins 2 and 4 are NC and must be grounded for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Supply ground reference for all internal circuitry and analog outputs |
| 2 | NC | No connect - must be tied to GND for optimal EMC performance |
| 3 | TEST | Factory test pin - grounded externally to suppress noise and improve immunity |
| 4 | NC | No connect - must be tied to GND for optimal EMC performance |
| 5 | OUT2 | Analog SIN output - ratiometric to VDD, used with OUT1 for arctan-based angle calculation |
| 6 | VDD5V | 5 V supply input - active in 5 V high-bandwidth mode; VDD3V3 must float |
| 7 | VDD3V3 | 3.3 V supply input - active in 3.3 V mode; VDD5V must float |
| 8 | OUT1 | Analog COS output - ratiometric to VDD, paired with OUT2 for full 360° angular resolution |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y field measurement eliminates need for external flux concentrators or multi-die assemblies |
| Selectable Magnetic Axis | X/Y configuration enables direct compatibility with end-of-shaft two-pole magnet mounting without mechanical reorientation |
| Programmable Sensitivity | 40 mT full-scale range calibrated for NdFeB magnets ensures optimal ADC utilization across temperature and aging |
| Ratiometric Outputs | Outputs scale linearly with VDD, removing dependency on stable voltage references and simplifying signal chain design |
| High-Speed Update | 4 µs output period supports closed-loop FOC at 25,000 rpm with <12 µs tracking delay in high-bandwidth mode |
Applications
| Electric Power Steering (EPS) | Permanent Magnet Synchronous Motor (PMSM) |
|---|---|
|
Use Scenario: Real-time rotor position feedback for torque-vectoring assist in 12 V automotive steering columns. IC Role / Device Role / Timing Role: Absolute angular resolver providing 360° sine/cosine signals to MCU for field-oriented control loop closure. Use Value: ±1° angular accuracy after dynamic compensation enables precise torque ripple suppression and smooth low-speed assist. |
Use Scenario: Rotor position sensing in HVAC blower motors and industrial PMSMs operating up to 150°C ambient. IC Role / Device Role / Timing Role: Contactless magnetic encoder replacing optical or inductive resolvers in compact, sealed motor housings. Use Value: SOIC-8 footprint and -40°C to 150°C rating allow direct PCB integration without heatsinking or isolation barriers. |
| Brushless DC Motor (BLDC) | Industrial Servo Drives |
|
Use Scenario: Commutation timing for 3-phase BLDC motors in e-bike controllers and cordless power tools. IC Role / Device Role / Timing Role: High-bandwidth analog resolver delivering synchronized SIN/COS outputs to dedicated motor gate drivers or MCU ADCs. Use Value: 4 µs update rate supports 6-step commutation at >100 kHz electrical frequency with minimal phase lag. |
Use Scenario: Precision angle feedback in robotic joint actuators requiring sub-degree repeatability over thermal cycling. IC Role / Device Role / Timing Role: Primary position sensor in closed-loop servo loops where encoder failure modes must be avoided. Use Value: Triaxis® architecture provides inherent redundancy against single-axis field distortion, improving functional safety compliance. |
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 |
|---|---|---|---|
| MLX90380LDC-BAA-100-RE | SmCo magnet calibration instead of NdFeB; identical SOIC-8 package, X/Y axis, and high-BW mode | Better high-temperature stability above 120°C but higher cost; requires SmCo magnet assembly | Select when magnet temperature exceeds 120°C or long-term flux stability is critical |
| MLX90380LGO-BAB-100-RE | TSSOP-16 dual-die redundant architecture vs. SOIC-8 single die; same BAB-100 programming and X/Y axis | ASIL-B capable via hardware redundancy; larger footprint and higher current draw (up to 20 mA) | Select for automotive safety-critical applications requiring fault-tolerant position reporting |
Compared with MLX90380LDC-BAB-100-RE, the BAA-100 offers superior thermal drift performance with SmCo magnets but at higher material cost, while the LGO-BAB-100 delivers ASIL-B readiness through physical redundancy at the expense of board area and power budget - making the LDC-BAB-100 optimal for cost-sensitive, high-volume EPS and industrial BLDC designs.
Availability
MLX90380LDC-BAB-100-RE is available at Aetrix Electronics and suitable for electric power steering (EPS), brushless DC motor (BLDC) commutation, and industrial servo drive applications requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MLX90380LDC-BAB-100-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 motion control, with core expertise in Hall-effect, infrared, and pressure sensing technologies.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, steering, and actuation systems operating in harsh thermal and electromagnetic environments.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-100-RE?
The MLX90380LDC-BAB-100-RE is factory-programmed for X/Y magnetic axis configuration (per option code BAB-100 decoding), supporting end-of-shaft two-pole magnet mounting with equal sensitivity on both axes. This is confirmed in Table 2 of the datasheet and Figure 6, and enables direct use with standard radial-field magnets without mechanical reorientation.
Does MLX90380LDC-BAB-100-RE support both 3.3 V and 5 V supply voltages?
Yes, MLX90380LDC-BAB-100-RE supports both 3.3 V and 5 V operation, but only one supply rail is active at a time. For this variant (BAB-100), the high-bandwidth mode requires 5 V on VDD5V, with VDD3V3 left floating. Supply current is 9–10 mA typical under 5 V high-BW conditions, as specified in Table 7.
How is the 40 mT full-scale magnetic range implemented in MLX90380LDC-BAB-100-RE?
The 40 mT full-scale range in MLX90380LDC-BAB-100-RE is factory-programmed during final test using the BAB-100 option code ('100' = xx0 → 40 mT range per Table 2). It is calibrated for NdFeB magnets and yields ±40%VDD output swing at 25°C with zero magnetic offset, enabling optimal utilization of a 12-bit MCU ADC input range.
What is the angular accuracy specification for MLX90380LDC-BAB-100-RE?
MLX90380LDC-BAB-100-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 ±10° at 25°C and ±15° across -40°C to 150°C, as defined in Table 8.
Can MLX90380LDC-BAB-100-RE be used in ASIL-B automotive systems?
MLX90380LDC-BAB-100-RE is a single-die SOIC-8 device and is not ASIL-B certified. For ASIL-B applications, Melexis specifies the TSSOP-16 dual-die variant MLX90380LGO-BAB-100-RE, which provides hardware redundancy. The LDC-BAB-100-RE is qualified for AEC-Q100 Grade 0 (-40°C to 150°C) and widely used in non-safety-critical EPS subsystems.
MLX90380LDC-BAB-100-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAB-100-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-100-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-100-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 MLX90380LDC-BAB-100-RE reliable?
The price and inventory of MLX90380LDC-BAB-100-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAB-100-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-100-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-100-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-100-RE?
MLX90380LDC-BAB-100-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-100-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 MLX90380LDC-BAB-100-RE?
For technical support, including MLX90380LDC-BAB-100-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-100-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-100-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-100-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 MLX90380LDC-BAB-100-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-100-RE?
All MLX90380LDC-BAB-100-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-100-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 MLX90380LDC-BAB-100-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-100-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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