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Melexis Technologies NV MLX90380LDC-BAC-524-SP
- Part No.:
- MLX90380LDC-BAC-524-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAC-524-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,375
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Product details
Overview
MLX90380LDC-BAC-524-SP 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 4µs output refresh rate, and is factory-programmed for ferrite magnets with 50mT full-scale magnetic range and X/Z magnetic axis configuration.
For engineers reviewing the MLX90380LDC-BAC-524-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package details, magnetic axis selection, ratiometric output behavior, and automotive-grade angular accuracy specifications required for BLDC and PMSM field-oriented control design.
Technical Context
The MLX90380LDC-BAC-524-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs deliver ratiometric sine/cosine signals referenced to VDD, with programmable sensitivity and filter bandwidth via external pins.
This variant uses ferrite magnets (BAC prefix), is configured for X/Z magnetic axis (5xx suffix), and supports high-bandwidth operation (5xx = 3.3V + high BW). The internal architecture includes on-chip chopping, sample-and-hold filtering, and EEPROM-based calibration for offset and gain compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angular tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 50 mT - Factory-programmed for ferrite magnets; defines ±40%VDD output swing at TA = 25°C with VOQ = 50%VDD. |
| Operating Supply | 3.3 V or 5 V - Dual-supply capability; VDD3V3 and VDD5V pins allow flexible MCU interface without level-shifting. |
| Temperature Range | -40°C to 150°C - Qualified for under-hood automotive and industrial motor control environments. |
| Magnetic Axis | X/Z - OUT1 = COS(X), OUT2 = SIN(Z); supports through-shaft configurations with two-pole off-axis magnets. |
| Output Linearity | ±0.5% - Measured over 360° at VDD = 5 V within 0.5–4.5 V output range; enables <1° total angular error after dynamic compensation. |
| Sensitivity Tempco | 2000 ppm/°C - Target coefficient for ferrite magnets; compensates for magnet flux decay over temperature. |
Pinout & Package
MLX90380LDC-BAC-524-SP is housed in an 8-pin SOIC-8 package (RoHS-compliant, body size 4.9 × 6.0 mm, 1.27 mm pitch) optimized for surface-mount assembly in compact motor control modules.
| 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; recommended to tie to GND for EMC performance per datasheet guidance. |
| 3 - TEST | Test Pin | Factory test access; tie to GND for optimal EMC; not intended for user functionality. |
| 4 - NC | Not Connected | No internal connection; recommended to tie to GND for EMC performance. |
| 5 - OUT2 | Analog Output SIN | Ratiometric sine output referenced to VDD; delivers Z-axis field component for X/Z axis configuration. |
| 6 - VDD5V | 5 V Supply Input | Active 5 V supply rail; use when operating at 5 V; leave VDD3V3 floating in this mode. |
| 7 - VDD3V3 | 3.3 V Supply Input | Active 3.3 V supply rail; use when operating at 3.3 V; leave VDD5V floating in this mode. |
| 8 - OUT1 | Analog Output COS | Ratiometric cosine output referenced to VDD; delivers X-axis field component for X/Z axis configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external magnet orientation alignment in through-shaft designs. |
| Ratiometric Analog Outputs | OUT1 and OUT2 scale directly with VDD, removing dependency on stable reference voltage and simplifying ADC interfacing. |
| Programmable Bandwidth | High-bandwidth mode (5xx option code) enables 1.6 samples/degree at 25,000 rpm - critical for fast-response FOC loops. |
| Ferrite Magnet Optimization | BAC-coded variant targets cost-sensitive applications using ferrite magnets while maintaining ±1° angular accuracy after compensation. |
| End-of-Shaft / Through-Shaft Flexibility | X/Z axis selection supports both on-axis (end-of-shaft) and off-axis (through-shaft) mounting with two-pole permanent magnets. |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
|
Use Scenario: Real-time rotor position feedback for commutation timing in 3-phase BLDC inverters used in electric power steering and HVAC blowers. IC Role / Device Role / Timing Role: Resolver-replacement position sensor providing synchronized sine/cosine outputs to MCU's CORDIC or lookup-table-based angle computation. Use Value: Enables precise 120° electronic commutation with <1° electrical angle error, reducing torque ripple and acoustic noise in 6–25 kRPM operation. |
Use Scenario: High-accuracy angular sensing in traction inverters for EV drivetrains requiring field-oriented control (FOC) at variable speeds and loads. IC Role / Device Role / Timing Role: Primary position transducer feeding closed-loop d/q current regulation; outputs sampled synchronously with PWM carrier for minimal latency. Use Value: Delivers 4 µs update rate and <12 µs tracking delay, supporting >10 kHz current loop bandwidth without phase lag-induced instability. |
| Electric Power Steering (EPS) | Industrial Servo Drives |
|
Use Scenario: Compact, high-temperature position sensing inside EPS column modules where space and thermal constraints limit resolver use. IC Role / Device Role / Timing Role: Contactless angular encoder replacing potentiometers or resolvers; mounted directly on motor shaft with ferrite ring magnet. Use Value: SOIC-8 footprint and -40°C to 150°C rating enable direct PCB integration into EPS ECU housings without heatsinking or isolation. |
Use Scenario: Position feedback in CNC machine spindle drives and robotic joint actuators requiring robustness against vibration, EMI, and oil contamination. IC Role / Device Role / Timing Role: Absolute 360° position sensor interfaced to industrial PLC or motion controller ADC inputs via ratiometric analog channels. Use Value: Ratiometric outputs eliminate need for precision voltage references; ±0.5% linearity ensures sub-arcminute repeatability across 10+ year service life. |
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-524-SP | Uses NdFeB magnet (BAB) instead of ferrite (BAC); higher sensitivity (2.66%VDD/mT vs. 1.33%VDD/mT) and lower TCS (1100 ppm/°C vs. 2000 ppm/°C). | Better suited for high-precision, low-noise applications where NdFeB magnet cost and thermal stability are acceptable trade-offs. | Select BAB-524 for tighter angular accuracy (<0.5°) in controlled-temperature environments; BAC-524 preferred for cost-sensitive, high-temp ferrite-based systems. |
| MLX90380LGO-BAC-524-SP | Dual-die TSSOP-16 package with fully redundant signal paths; identical magnetic specs but doubled pin count and larger footprint. | Required for ASIL-D functional safety compliance (ISO 26262) where hardware redundancy is mandated for fault detection. | Choose LGO-BAC-524 only when safety-critical redundancy is required; LDC-BAC-524 satisfies ASIL-B and non-safety industrial applications with smaller PCB area. |
Compared with MLX90380LDC-BAB-524-SP and MLX90380LGO-BAC-524-SP, the MLX90380LDC-BAC-524-SP offers optimal balance of cost, size, and ferrite-magnet compatibility for high-volume automotive EPS and industrial servo applications without redundancy requirements.
Availability
MLX90380LDC-BAC-524-SP is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo drive applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LDC-BAC-524-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 leadership in magnetic position sensing and contactless current measurement.
The MLX90380 product line delivers Triaxis® resolver-replacement solutions targeting high-reliability motor control applications where traditional resolvers are too bulky, expensive, or sensitive to mechanical misalignment.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAC-524-SP?
The MLX90380LDC-BAC-524-SP is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 carries the cosine of the X-axis field component and OUT2 carries the sine of the Z-axis field component. This supports through-shaft mounting with off-axis two-pole magnets and is confirmed by the '5' in the third digit of the option code '524' per Table 2 of the datasheet.
Which magnet type is MLX90380LDC-BAC-524-SP optimized for?
MLX90380LDC-BAC-524-SP is optimized for ferrite magnets, as indicated by the 'BAC' prefix in its part number. The 'C' denotes ferrite, and its sensitivity temperature coefficient (2000 ppm/°C) is specifically targeted to compensate for the thermal flux decay characteristics of ferrite materials across -40°C to 150°C.
What supply voltage should be used with MLX90380LDC-BAC-524-SP?
MLX90380LDC-BAC-524-SP supports both 3.3 V and 5 V operation. The '5' in the second digit of option code '524' indicates high-bandwidth mode with 3.3 V supply (per Table 2: BAx-5xx = 3.3V + high BW). Therefore, VDD3V3 must be powered at 3.3 V, and VDD5V must remain floating during normal operation.
Does MLX90380LDC-BAC-524-SP require external programming after soldering?
No, MLX90380LDC-BAC-524-SP is delivered pre-programmed with X/Z axis, 50 mT full-scale range, ferrite magnet optimization, and high-bandwidth filter settings. Programming through the connector is optional and only needed for post-production calibration or reconfiguration - not required for standard deployment.
What is the angular accuracy of MLX90380LDC-BAC-524-SP in a typical motor control application?
MLX90380LDC-BAC-524-SP achieves ≤1° total angular error after dynamic compensation (e.g., offset/gain correction in the host MCU), with ±0.5% output linearity at 5 V supply. At 25,000 rpm and high-bandwidth mode, tracking delay is 12 µs, enabling sub-degree real-time position fidelity in FOC loops.
MLX90380LDC-BAC-524-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tube
- 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-BAC-524-SP FAQ
1.How can I place an order for MLX90380LDC-BAC-524-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAC-524-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-BAC-524-SP reliable?
The price and inventory of MLX90380LDC-BAC-524-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-BAC-524-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAC-524-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAC-524-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAC-524-SP?
MLX90380LDC-BAC-524-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAC-524-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-BAC-524-SP?
For technical support, including MLX90380LDC-BAC-524-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAC-524-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAC-524-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAC-524-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-BAC-524-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAC-524-SP?
All MLX90380LDC-BAC-524-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAC-524-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-BAC-524-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAC-524-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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