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Melexis Technologies NV MLX90380LDC-BAA-500-RE
- Part No.:
- MLX90380LDC-BAA-500-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAA-500-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,407
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Product details
Overview
MLX90380LDC-BAA-500-RE from Melexis is a monolithic Triaxis® contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver replacement in motor control systems. 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 X/Y magnetic axis with 50 mT full-scale range using SmCo magnet.
For engineers reviewing the MLX90380LDC-BAA-500-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, angular error performance under dynamic conditions, magnetic axis configuration, and real-world motor control integration guidance.
Technical Context
The MLX90380LDC-BAA-500-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) magnetic field components, generating ratiometric analog outputs proportional to sin(θ) and cos(θ). Its dual-output architecture enables high-resolution angle computation via external arctangent processing.
Programmable bandwidth (low/medium/high), on-chip chopping at 1 MHz, and factory-set sensitivity of 1.33 %VDD/mT (for 50 mT range) ensure compatibility with diverse ADC input ranges and motor speed requirements up to 25,000 rpm. Output tracking delay is 17.5 µs in high-bandwidth mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking at up to 250 kSPS for high-speed motor commutation. |
| Full-Scale Magnetic Range | 50 mT - Factory-programmed for BAA-500 option; defines ±40% VDD output swing at TA = 25°C. |
| Sensitivity | 1.33 %VDD/mT - Delivers 66.5 mV/mT at 5V supply; optimized for 50 mT range with SmCo magnet. |
| Operating Temperature | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments. |
| Supply Voltage | 3.135–3.6 V or 4.5–5.5 V - Dual-rail support allows flexible MCU interface without level-shifting. |
| Total Angular Error (Dynamic) | ±1° - Achieved with off-chip offset/gain/phase compensation; excludes mechanical misalignment effects. |
| Output Linearity | ±0.5% - Measured over 0.5–4.5 V output range at 5V supply; critical for precision field-oriented control. |
Pinout & Package
MLX90380LDC-BAA-500-RE is housed in an 8-pin SOIC package (JEDEC MS-012AC) with 1.27 mm pitch and exposed pad for thermal enhancement. Pin 1 is located at the top-left corner adjacent to the notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for analog and digital circuitry; must be low-impedance connection. |
| 2 NC | Not Connected | No internal connection; recommended to tie to GND for EMC improvement. |
| 3 TEST | Test Pin | Factory test access; tie to GND for optimal EMC performance in final design. |
| 4 NC | Not Connected | No internal connection; recommended to tie to GND for EMC improvement. |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage proportional to sin(θ); 0–100% VDD range with 50% VDD quiescent level. |
| 6 VDD5V | 5V Supply Input | Active 5V rail; leave VDD3V3 floating when using this supply. |
| 7 VDD3V3 | 3.3V Supply Input | Active 3.3V rail; leave VDD5V floating when using this supply. |
| 8 OUT1 | Analog Output COS | Ratiometric voltage proportional to cos(θ); 0–100% VDD range with 50% VDD quiescent level. |
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 (BAA option) supports end-of-shaft mounting with two-pole magnets and direct angular decoding. |
| Ratiometric Outputs | OUT1/COS and OUT2/SIN scale linearly with VDD, removing supply voltage dependency from angle calculation accuracy. |
| Programmable Bandwidth | High-bandwidth mode (17.5 µs tracking delay) enables accurate position feedback at 25,000 rpm motor speeds. |
| SmCo Magnet Optimization | BAA-500 variant uses SmCo magnet programming for stable TCS (350 ppm/°C) across -40°C to 150°C. |
Applications
| Brushless Motor Control | Field-Oriented Control (FOC) |
|---|---|
Use Scenario: Real-time rotor position feedback in permanent magnet synchronous motors (PMSM) for electric power steering and traction inverters. IC Role / Device Role / Timing Role: Contactless resolver replacement delivering synchronized sine/cosine signals to MCU ADC inputs for arctangent-based angle computation. Use Value: Enables precise commutation timing and torque ripple reduction at 25,000 rpm with ±1° dynamic angular error after system-level compensation. |
Use Scenario: High-bandwidth angular data acquisition in servo drives requiring vector control of stator current orientation. IC Role / Device Role / Timing Role: Primary position transducer feeding closed-loop d-q axis current regulators with sub-20 µs latency in high-bandwidth mode. Use Value: Supports <10 µs current loop update cycles by providing deterministic 4 µs output refresh and 17.5 µs tracking delay. |
| End-of-Shaft Position Sensing | Automotive Throttle & Pedal Position |
Use Scenario: Absolute angular measurement on rotating shafts where space constraints prohibit through-shaft solutions. IC Role / Device Role / Timing Role: X/Y-axis configured sensor mounted radially adjacent to two-pole magnet on shaft end face. Use Value: Eliminates mechanical wear and contact bounce while maintaining ±0.5% linearity over full 360° rotation at 150°C junction temperature. |
Use Scenario: Redundant pedal position sensing in brake-by-wire and accelerator pedal modules meeting ASIL-B functional safety requirements. IC Role / Device Role / Timing Role: Single-die high-temperature position sensor providing fail-safe analog outputs for cross-checking with secondary sensors. Use Value: Delivers ratiometric outputs with <2.2% VDD offset drift over temperature, enabling robust fault detection without additional reference circuitry. |
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-500-RE | Uses NdFeB magnet instead of SmCo; higher TCS (1100 ppm/°C) and greater output offset drift (±2.2% VDD). | Lower cost magnet system; suitable for ambient-limited industrial applications but less stable at 150°C. | Select when operating temperature stays below 125°C and cost optimization is prioritized over thermal stability. |
| MLX90380LGO-BAA-000-RE | Dual-die TSSOP-16 package with fully redundant signal paths; identical X/Y axis and 40 mT range but no high-bandwidth mode. | Designed for ASIL-D automotive safety-critical systems requiring hardware redundancy and diagnostic coverage. | Choose for brake or steering ECU designs requiring ISO 26262 compliance and fault-tolerant architecture. |
Compared with MLX90380LDC-BAA-500-RE, the BAB-500 variant trades thermal stability for cost in non-safety-critical applications, while the LGO-BAA-000 offers hardware redundancy at the expense of package size and bandwidth-making the LDC-BAA-500 optimal for compact, high-speed, thermally demanding motor control.
Availability
MLX90380LDC-BAA-500-RE is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control, and end-of-shaft position sensing requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAA-500-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 sensor solutions for automotive and industrial markets, with expertise in magnetic sensing, thermal imaging, and RF ICs.
The MLX90380 product line delivers contactless 360° absolute angular position sensing using Triaxis® Hall technology, targeting high-reliability motor control, steering, and throttle applications where resolver replacement is required.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAA-500-RE?
The MLX90380LDC-BAA-500-RE is factory-programmed for X/Y magnetic axis configuration, meaning OUT1 corresponds to the cosine of the magnetic field component along the X-axis and OUT2 to the sine of the Y-axis component. This setup supports end-of-shaft mounting with two-pole magnets and enables direct angular decoding without external signal conditioning.
Does MLX90380LDC-BAA-500-RE support both 3.3V and 5V supply rails simultaneously?
No, MLX90380LDC-BAA-500-RE does not support simultaneous 3.3V and 5V operation. The device must be powered from either VDD3V3 (3.135–3.6 V) or VDD5V (4.5–5.5 V), with the unused supply pin left floating. The BAA-500 option is rated for high-bandwidth operation under either supply condition, delivering 4 µs output refresh and 17.5 µs tracking delay.
What is the full-scale magnetic range and sensitivity of MLX90380LDC-BAA-500-RE?
The MLX90380LDC-BAA-500-RE has a factory-programmed full-scale magnetic range of 50 mT and a sensitivity of 1.33 %VDD/mT. At 5V supply, this yields 66.5 mV/mT output change, resulting in ±2 V output swing (40% of 5V) at full scale. This setting is optimized for SmCo magnets and ensures stable performance across the -40°C to 150°C operating range.
How is angular accuracy achieved with MLX90380LDC-BAA-500-RE in dynamic conditions?
MLX90380LDC-BAA-500-RE achieves ±1° total angular error under dynamic conditions through high-bandwidth signal acquisition (4 µs refresh), low-latency tracking (17.5 µs delay), and compatibility with off-chip dynamic compensation algorithms. System-level correction of offset, gain, and phase-applied before arctangent computation-reduces linearity errors while excluding mechanical contributions like magnet eccentricity.
Can MLX90380LDC-BAA-500-RE be used in ASIL-B or ASIL-D automotive applications?
The MLX90380LDC-BAA-500-RE is a single-die SOIC-8 device qualified for -40°C to 150°C operation and widely deployed in ASIL-B applications such as electric power steering and throttle position sensing. For ASIL-D compliance, Melexis recommends the dual-die TSSOP-16 variant MLX90380LGO-BAA-000-RE, which provides hardware redundancy and diagnostic coverage required by ISO 26262.
MLX90380LDC-BAA-500-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:
- 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-BAA-500-RE FAQ
1.How can I place an order for MLX90380LDC-BAA-500-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAA-500-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-BAA-500-RE reliable?
The price and inventory of MLX90380LDC-BAA-500-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-BAA-500-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAA-500-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAA-500-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAA-500-RE?
MLX90380LDC-BAA-500-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAA-500-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-BAA-500-RE?
For technical support, including MLX90380LDC-BAA-500-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAA-500-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAA-500-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAA-500-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-BAA-500-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAA-500-RE?
All MLX90380LDC-BAA-500-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAA-500-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-BAA-500-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAA-500-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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