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Melexis Technologies NV MLX90380LDC-BAB-045-RE
- Part No.:
- MLX90380LDC-BAB-045-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-045-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,432
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Product details
Overview
MLX90380LDC-BAB-045-RE from Melexis is a monolithic Triaxis® Hall-based resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, 3.3 V/5 V dual-supply support, and -40°C to 150°C operating range for end-of-shaft or through-shaft motor rotor position feedback in BLDC and PMSM drives.
For engineers reviewing the MLX90380LDC-BAB-045-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package mapping, magnetic axis (X/Z), NdFeB magnet compatibility, 60 mT full-scale range, and high-bandwidth programming mode - all confirmed from Melexis Revision 11 datasheet.
Technical Context
The MLX90380LDC-BAB-045-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using on-die signal conditioning, enabling precise arctangent-based angle computation. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and updated every 4 µs with programmable filter bandwidth.
This variant is factory-programmed for X/Z magnetic axis configuration, NdFeB magnet compatibility, 60 mT full-scale magnetic range, and high-bandwidth operation (5V supply, BAx-5xx coding), supporting dynamic compensation for ≤±1° total angular error after system-level offset/gain correction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time rotor tracking up to 25,000 rpm with ≤74 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 60 mT - optimized for NdFeB magnets; provides ±40% VDD output swing at TA = 25°C with VOQ = 50% VDD. |
| Magnetic Axis Configuration | X/Z - OUT1 reports BX, OUT2 reports BZ; supports off-axis through-shaft applications with sensitivity mismatch compensation. |
| Supply Voltage Support | 3.3 V or 5 V - dual-rail capable; VDD3V3 and VDD5V pins are separate; only one supply active per application. |
| Operating Temperature | -40°C to 150°C - qualified for automotive powertrain and industrial motor control environments. |
| Output Linearity | ≤±0.5% - specified at VDD = 5 V within 0.5 V–4.5 V output range; enables <1° uncorrected angular error in precision systems. |
| Total Angular Error | ≤±1° - achievable with dynamic offset/gain compensation applied externally prior to arctan(OUT2/OUT1) calculation. |
Pinout & Package
MLX90380LDC-BAB-045-RE uses the SOIC-8 package (8-pin, 3.9 mm × 4.9 mm, 1.27 mm pitch) with exposed pad for thermal performance. Unused pins (NC) and TEST must be connected to ground for optimal EMC behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for analog and digital circuitry; connects to PCB ground plane. |
| 2 NC | Not Connected | No internal connection; must be tied to GND per EMC recommendation. |
| 3 TEST | Test Pin | Factory test interface; requires external GND connection for stable operation and noise immunity. |
| 4 NC | Not Connected | No internal connection; must be tied to GND per EMC recommendation. |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage proportional to BZ; used with OUT1 for arctan-based angle calculation. |
| 6 VDD5V | 5 V Supply Input | Active supply rail when operating at 5 V; VDD3V3 must remain floating in this mode. |
| 7 VDD3V3 | 3.3 V Supply Input | Active supply rail when operating at 3.3 V; VDD5V must remain floating in this mode. |
| 8 OUT1 | Analog Output COS | Ratiometric voltage proportional to BX; paired with OUT2 to resolve absolute angular position. |
Key Features
| Feature | Design Value |
|---|---|
| Selectable Magnetic Axis (X/Z) | Enables mechanical flexibility for through-shaft configurations where Z-axis flux dominates; supports sensitivity mismatch calibration. |
| NdFeB Magnet Optimization (BAB) | Factory-tuned sensitivity temperature coefficient (TCS ≈ 1100 ppm/°C) matches NdFeB demagnetization curve for stable accuracy over temperature. |
| 60 mT Full-Scale Range (xx5) | Maximizes ADC utilization for medium-strength NdFeB magnets while maintaining linearity ≤±0.5% and noise ≤4.6 mV RMS. |
| High-Bandwidth Programming (5xx) | Configures internal filter for 125 kHz Nyquist frequency and 74 µs tracking delay - critical for >15,000 rpm motor control loops. |
| Ratiometric Analog Outputs | Eliminates need for precision voltage references; OUT1/OUT2 scale linearly with VDD, simplifying MCU ADC interfacing and improving supply rejection. |
Applications
| Brushless DC Motor Rotor Position | PMSM Field-Oriented Control |
|---|---|
|
Use Scenario: Real-time angular feedback for commutation timing in automotive HVAC blower or EPS assist motors. IC Role / Device Role / Timing Role: Resolver IC providing synchronized COS/SIN outputs to MCU ADC for 360° absolute position at 25,000 rpm. Use Value: Enables sensorless-less FOC implementation with ≤±1° dynamic angular error after gain/offset correction, reducing BOM cost vs. resolvers. |
Use Scenario: High-accuracy rotor angle input for torque vectoring in electric traction inverters. IC Role / Device Role / Timing Role: Contactless angular sensor delivering 4 µs update rate and ratiometric outputs compatible with 12-bit automotive-grade ADCs. Use Value: Supports fast current loop closure with minimal latency; X/Z axis configuration accommodates compact through-shaft magnet mounting. |
| Electric Power Steering (EPS) | Industrial Servo Motor Feedback |
|
Use Scenario: Safety-critical steering angle measurement in ASIL-B compliant EPS systems. IC Role / Device Role / Timing Role: Redundancy-ready position sensor with AEC-Q100 qualification, -40°C to 150°C operation, and programmable diagnostics. Use Value: Delivers fail-safe angular data with built-in POR and EEPROM-programmable parameters - no external ASIC required. |
Use Scenario: Closed-loop position feedback in CNC spindle drives requiring <0.5° linearity over lifetime. IC Role / Device Role / Timing Role: High-stability resolver replacing optical encoders in dusty/humid factory environments. Use Value: Immune to contamination and vibration; 60 mT range and NdFeB optimization ensure consistent output across thermal cycling. |
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-BAB-025-RE | Same SOIC-8 package and X/Z axis, but 20 mT full-scale range and medium-bandwidth (3xx) programming. | Better suited for low-field NdFeB magnets or lower-speed (<10,000 rpm) applications where noise immunity outweighs update speed. | Select when system magnet strength is weak or thermal drift compensation priority exceeds bandwidth needs. |
| MLX90380LGO-BAB-045-RE | TSSOP-16 dual-die redundant package; identical BAB-045 programming (X/Z, 60 mT, high BW), but with independent die A/B outputs and enhanced functional safety support. | Required for ISO 26262 ASIL-D designs needing hardware redundancy; occupies larger PCB area and requires dual ADC channels. | Choose for automotive safety-critical systems demanding fault detection, cross-checking, and diagnostic coverage. |
Compared with MLX90380LDC-BAB-025-RE, the MLX90380LDC-BAB-045-RE delivers 3× higher magnetic range and 2× faster tracking for high-dynamic motor control; versus MLX90380LGO-BAB-045-RE, it trades redundancy and ASIL-D readiness for smaller footprint and single-channel simplicity.
Availability
MLX90380LDC-BAB-045-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo applications requiring stable component supply, extended temperature operation, and high-bandwidth analog position feedback.
Supply support for MLX90380LDC-BAB-045-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, LIN/CAN interfaces, and embedded signal processing.
The MLX90380 product line delivers contactless absolute angular position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, steering, and transmission systems where robustness, temperature stability, and analog interface simplicity are critical.
FAQ
What magnetic axis configuration is implemented in MLX90380LDC-BAB-045-RE?
The MLX90380LDC-BAB-045-RE is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 reports the X-component (BX) and OUT2 reports the Z-component (BZ) of the applied magnetic field. This configuration supports through-shaft mounting with off-axis magnet placement and allows sensitivity mismatch compensation during system calibration.
What is the full-scale magnetic range and magnet type compatibility of MLX90380LDC-BAB-045-RE?
The MLX90380LDC-BAB-045-RE has a 60 mT full-scale magnetic range and is optimized for NdFeB magnets, as indicated by the "BAB" option code. Its sensitivity temperature coefficient (≈1100 ppm/°C) is calibrated to match NdFeB's intrinsic flux decay over temperature, ensuring stable angular accuracy from -40°C to 150°C.
How does the high-bandwidth programming mode affect MLX90380LDC-BAB-045-RE performance?
The "5xx" suffix in MLX90380LDC-BAB-045-RE denotes high-bandwidth programming with 5 V supply, yielding a 125 kHz Nyquist frequency and 74 µs total tracking delay. This enables accurate position capture at rotational speeds up to 25,000 rpm and supports fast current-loop closure in high-performance motor drives.
Can MLX90380LDC-BAB-045-RE operate from both 3.3 V and 5 V supplies simultaneously?
No - MLX90380LDC-BAB-045-RE supports either 3.3 V or 5 V operation, not both simultaneously. When using VDD5V, the VDD3V3 pin must be left floating; when using VDD3V3, the VDD5V pin must be left floating. The device detects supply voltage level and configures internal biasing accordingly.
What is the significance of ratiometric outputs in MLX90380LDC-BAB-045-RE?
MLX90380LDC-BAB-045-RE's ratiometric outputs (OUT1 and OUT2) scale directly with the active supply rail (VDD3V3 or VDD5V), making them insensitive to supply voltage variations. This eliminates the need for precision voltage references and improves ADC measurement accuracy in noisy automotive or industrial power environments.
MLX90380LDC-BAB-045-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:
- 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:
- 8-SOIC
MLX90380LDC-BAB-045-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-045-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-045-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-045-RE reliable?
The price and inventory of MLX90380LDC-BAB-045-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-045-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-045-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-045-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-045-RE?
MLX90380LDC-BAB-045-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-045-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-045-RE?
For technical support, including MLX90380LDC-BAB-045-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-045-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-045-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-045-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-045-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-045-RE?
All MLX90380LDC-BAB-045-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-045-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-045-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-045-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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