Melexis Technologies NV MLX90380LDC-BAB-100-SP
- Part No.:
- MLX90380LDC-BAB-100-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-100-SP.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MLX90380LDC-BAB-100-SP from Melexis is a monolithic Triaxis® Hall-based 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 with X/Y magnetic axis and 40 mT full-scale range.
For engineers reviewing the MLX90380LDC-BAB-100-SP datasheet, pinout, applications, or equivalent options, this device serves as a high-temperature, contactless angular position sensor in motor control feedback loops where ratiometric analog outputs, programmable bandwidth, and end-of-shaft/through-shaft flexibility are required.
Technical Context
The MLX90380LDC-BAB-100-SP implements Triaxis® technology to simultaneously sense orthogonal (X/Y) magnetic field components using integrated Hall elements and on-chip signal conditioning. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, with factory-set sensitivity of 1 %VDD/mT and linearity better than ±0.5% over 360° at VDD = 5V.
It supports three programmable bandwidth modes (low/medium/high), with tracking delay ranging from 12 µs (high BW) to 85.5 µs (low BW), and enables dynamic angular error compensation via external MCU processing of the sine/cosine pair. The SOIC-8 package integrates all functionality without external magnetics or coils.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 (COS), OUT2 (SIN), each spanning 5–95% VDD |
| Output Refresh Rate | 4 µs - enables real-time angle reconstruction up to 25,000 rpm with <1° total angular error after dynamic compensation |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - dual-rail support allows direct interface with 3.3V or 5V MCUs without level shifting |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments |
| Magnetic Range | 40 mT full-scale (BAB-100 variant) - optimized for NdFeB magnets in end-of-shaft configurations |
| Linearity Error | ±0.5% (VDD = 5V, output 0.5–4.5 V) - ensures sub-degree angular resolution before software correction |
| Sensitivity | 1 %VDD/mT - delivers 50 mV/mT output swing at 5V, matching typical ADC input ranges without amplification |
Pinout & Package
MLX90380LDC-BAB-100-SP is housed in an 8-pin SOIC-8 package (JEDEC MS-012AC) with 1.27 mm pitch, surface-mount footprint, and exposed pad not connected internally. Pin 2 and Pin 4 are NC; Pin 3 (TEST) and unused pins must be tied to GND for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Supply Ground | Primary ground reference for analog and digital circuitry; must be low-impedance connection to system GND |
| 2 (NC) | Not Connected | No internal connection; tie to GND per EMC recommendation |
| 3 (TEST) | Test Pin | Factory test access; tie to GND in application to suppress noise coupling |
| 4 (NC) | Not Connected | No internal connection; tie to GND per EMC recommendation |
| 5 (OUT2) | Analog Output SIN | Ratiometric voltage proportional to sin(θ); drives ADC input directly with ≤10 kΩ load |
| 6 (VDD5V) | 5V Supply Input | Active supply rail when operating at 5V; VDD3V3 must be left floating in this mode |
| 7 (VDD3V3) | 3.3V Supply Input | Active supply rail when operating at 3.3V; VDD5V must be left floating in this mode |
| 8 (OUT1) | Analog Output COS | Ratiometric voltage proportional to cos(θ); paired with OUT2 for arctan(OUT2/OUT1) angle computation |
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 (BAB-100) enables direct end-of-shaft mounting with standard two-pole magnets |
| Programmable Bandwidth | Three user-selectable filter settings (low/medium/high) adjust tracking delay from 12 µs to 85.5 µs to match motor dynamics |
| Ratiometric Outputs | OUT1/OUT2 scale precisely with VDD, removing supply variation impact on angle accuracy |
| Factory Calibration | Pre-programmed for NdFeB magnet, 40 mT range, X/Y axis, and 1 %VDD/mT sensitivity - no field calibration required |
Applications
| Brushless Motor Rotor Position | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time angular feedback for FOC (Field-Oriented Control) in PMSM and BLDC motors driving HVAC blowers, pumps, or traction inverters. IC Role / Device Role / Timing Role: Resolver replacement providing analog sine/cosine signals synchronized to rotor position with 4 µs update latency. Use Value: Enables high-bandwidth torque control up to 25,000 rpm while maintaining <1° total angular error after dynamic offset/gain correction in MCU. |
Use Scenario: Absolute steering angle measurement in automotive EPS systems requiring ASIL-B compliance and extended temperature operation. IC Role / Device Role / Timing Role: Primary contactless position sensor mounted on steering column, interfacing directly with 3.3V or 5V safety MCU ADC inputs. Use Value: Delivers ratiometric outputs immune to supply ripple, supporting functional safety diagnostics including signal plausibility and amplitude monitoring. |
| Industrial Servo Motor Feedback | Rotary Actuator Position |
Use Scenario: High-accuracy shaft angle detection in closed-loop servo drives for CNC machines, robotics joints, and packaging equipment. IC Role / Device Role / Timing Role: Analog resolver substitute generating true 360° position data without interpolation or encoder quadrature decoding. Use Value: Eliminates optical encoder fragility and magnetic encoder limited resolution; achieves ±0.5% linearity enabling <0.1° mechanical resolution with 12-bit ADC. |
Use Scenario: Compact position sensing in space-constrained rotary actuators used in valve control, aerospace flaps, and medical devices. IC Role / Device Role / Timing Role: End-of-shaft mounted IC converting magnet rotation into calibrated sine/cosine voltages for microcontroller-based angle computation. Use Value: SOIC-8 footprint and through-hole-compatible layout simplifies integration; 150°C rating supports sealed actuator housings with minimal thermal derating. |
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 | Uses SmCo magnet instead of NdFeB; identical SOIC-8 package, X/Y axis, 40 mT range, and 3.3V/5V supply | Better high-temperature stability above 120°C due to SmCo's lower TCS drift; preferred for extreme ambient conditions | Select BAA-100 if magnet temperature exceeds 120°C or long-term aging stability is critical; otherwise BAB-100 offers cost advantage with NdFeB |
| MLX90380LGO-BAB-100-RE | TSSOP-16 dual-die fully redundant architecture; same magnetic specs but doubled fault coverage and AEC-Q100 Grade 0 qualification | Required for ASIL-D systems where single-point failure mitigation is mandated; occupies larger PCB area and requires dual power routing | Choose LGO-BAB-100 only when functional safety certification (ISO 26262) demands hardware redundancy; LDC-BAB-100 suffices for ASIL-B or non-automotive use |
Compared with MLX90380LDC-BAA-100-RE, the MLX90380LDC-BAB-100-SP trades marginal high-temperature drift performance for NdFeB cost efficiency, while MLX90380LGO-BAB-100-RE adds redundancy overhead for safety-critical deployment - making the LDC-BAB-100-SP optimal for cost-sensitive, high-volume industrial and mid-tier automotive motor control.
Availability
MLX90380LDC-BAB-100-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo applications requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MLX90380LDC-BAB-100-SP 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 expertise in magnetic sensing, thermal imaging, and LIN/CAN connectivity.
The MLX90380 product line delivers contactless angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, steering, and actuation systems demanding robustness across -40°C to 150°C.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-100-SP?
The MLX90380LDC-BAB-100-SP is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 responds to the BX field component and OUT2 to the BY component. This enables direct end-of-shaft mounting with two-pole magnets aligned parallel to the IC surface, as confirmed in Table 2 and Figure 6 of the datasheet.
Does MLX90380LDC-BAB-100-SP support both 3.3V and 5V supply rails simultaneously?
No - MLX90380LDC-BAB-100-SP uses separate VDD3V3 and VDD5V pins but operates on only one supply at a time. When powered from 3.3V, VDD5V must be left floating; when powered from 5V, VDD3V3 must be left floating. This isolation prevents cross-rail interference and is specified in Section 9.1 and Figure 12–13 of the datasheet.
What is the full-scale magnetic range and sensitivity of MLX90380LDC-BAB-100-SP?
The MLX90380LDC-BAB-100-SP has a factory-set full-scale magnetic range of 40 mT and sensitivity of 1 %VDD/mT. At 5V supply, this yields ±50 mV/mT output swing, resulting in a total output span of 4 V (5–95% VDD), as defined in Table 2 (BAB-100 = 40 mT) and Section 12 specifications.
Can MLX90380LDC-BAB-100-SP be used in through-shaft configurations?
Yes - although MLX90380LDC-BAB-100-SP is configured for X/Y axis (optimized for end-of-shaft), it can also operate in through-shaft setups using multi-pole magnets off-axis. The datasheet explicitly states X/Y axis compatibility with "two pole magnet end of shaft / on axis and multi-pole magnet off-axis / through-shaft application" in footnote 3 of Table 2.
What is the maximum rotational speed supported by MLX90380LDC-BAB-100-SP?
The MLX90380LDC-BAB-100-SP supports up to 25,000 rpm with high-bandwidth programming, achieving 1.6 samples per degree and <1.8° signal phase shift at that speed. This capability is verified in Table 8 (Magnetic Specifications) and assumes proper MCU-side dynamic compensation for total angular error reduction.
MLX90380LDC-BAB-100-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- -
- Output Signal:
- -
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- -
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 3.135V ~ 3.6V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90380LDC-BAB-100-SP FAQ
1.How can I place an order for MLX90380LDC-BAB-100-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-100-SP 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-SP reliable?
The price and inventory of MLX90380LDC-BAB-100-SP 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-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-100-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-100-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-100-SP?
MLX90380LDC-BAB-100-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-100-SP 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-SP?
For technical support, including MLX90380LDC-BAB-100-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-100-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-100-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-100-SP 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-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-100-SP?
All MLX90380LDC-BAB-100-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-100-SP, 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-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-100-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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