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Melexis Technologies NV MLX90380LDC-BAC-100-RE
- Part No.:
- MLX90380LDC-BAC-100-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAC-100-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,082
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Product details
Overview
MLX90380LDC-BAC-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, ±40%VDD swing, and ratiometric operation across 3.3 V or 5 V supply. It uses ferrite magnets (BAC prefix), supports X/Y magnetic axis configuration, and operates from −40°C to 150°C in SOIC-8 package for end-of-shaft motor position sensing.
For engineers reviewing the MLX90380LDC-BAC-100-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, magnetic sensitivity calibration details (10–70 mT range), angular error specs (<±1° with dynamic compensation), and real-world motor control integration guidance.
Technical Context
The MLX90380LDC-BAC-100-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) and in-plane magnetic field components using integrated vertical and planar Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and programmable for ferrite magnet systems (BAC option code), with factory-set 40 mT full-scale range and X/Y axis alignment.
It features on-chip sample-and-hold filtering with selectable bandwidth (high/medium/low), 125 kHz Nyquist frequency, and tracking delay as low as 12 µs in high-bandwidth mode. Output update period is fixed at 4 µs per full sine/cosine pair, enabling accurate angle reconstruction up to 25,000 rpm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle computation at up to 250 kSPS for high-speed motor commutation. |
| Full-Scale Magnetic Range | 40 mT - Factory-programmed sensitivity for ferrite magnets; delivers ±40%VDD output swing at TA = 25°C. |
| Operating Supply | 3.3 V or 5 V - Dual-rail support; VDD3V3 and VDD5V pins allow single-supply flexibility without external regulators. |
| Angular Accuracy | <±1° total error with dynamic compensation - Achieved via off-chip arctan(OUT2/OUT1) with offset/gain correction. |
| Temperature Range | −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 equal sensitivity on both axes; enables direct mounting on rotating shafts. |
| Package | SOIC-8 - Surface-mount, RoHS-compliant package with exposed pad for thermal stability in high-temp operation. |
Pinout & Package
MLX90380LDC-BAC-100-RE is housed in an 8-pin SOIC package (JEDEC MS-012) with 1.27 mm pitch. Unused pins (NC) and TEST must be connected to ground for optimal EMC performance. VDD3V3 must float in 5 V applications; VDD5V must float in 3.3 V applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for analog and digital circuitry; connects to system GND plane. |
| 2 NC | Not Connected | Internally unconnected; must be tied to GND per EMC guidelines. |
| 3 TEST | Test Pin | Factory test access; requires GND connection in final design to suppress noise coupling. |
| 4 NC | Not Connected | Internally unconnected; must be tied to GND per EMC guidelines. |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage proportional to sin(θ); used with OUT1 for arctan-based angle calculation. |
| 6 VDD5V | 5 V Supply Input | Active when 5 V operation selected; VDD3V3 must remain floating in this mode. |
| 7 VDD3V3 | 3.3 V Supply Input | Active when 3.3 V operation selected; VDD5V must remain floating in this mode. |
| 8 OUT1 | Analog Output COS | Ratiometric voltage proportional to cos(θ); paired with OUT2 for full 360° position 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. |
| Programmable Sensitivity | Ferrite-optimized 40 mT range (BAC-100) ensures full ADC utilization with common low-cost magnets and reduces signal conditioning complexity. |
| Ratiometric Outputs | OUT1/OUT2 scale directly with VDD, removing supply voltage drift from angle computation and simplifying MCU interface design. |
| High-Speed Update | 4 µs output period supports >25,000 rpm rotor speeds while maintaining sub-degree linearity error with dynamic compensation. |
| Extended Temperature Operation | Guaranteed functionality from −40°C to +150°C enables direct placement on motor housings without heatsinking or derating. |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
|
Use Scenario: Real-time rotor position feedback for six-step commutation or FOC in traction inverters and power tools. IC Role / Device Role / Timing Role: Contactless absolute angle sensor providing synchronized COS/SIN outputs to MCU ADC for precise phase alignment. Use Value: Enables <±1° closed-loop position accuracy at 25,000 rpm with ferrite magnets, reducing BOM cost versus resolver or optical encoders. |
Use Scenario: High-reliability rotor position sensing in HVAC compressors and industrial pumps operating continuously at elevated ambient temperatures. IC Role / Device Role / Timing Role: Primary angular transducer interfacing directly to motor control ASIC or DSP via ratiometric analog inputs. Use Value: −40°C to +150°C operation eliminates external temperature compensation; SOIC-8 footprint allows compact PCB layout near motor stator windings. |
| End-of-Shaft Position Sensing | Field-Oriented Control Systems |
|
Use Scenario: Direct mounting on motor shaft end for servo actuators in robotics and automated guided vehicles (AGVs). IC Role / Device Role / Timing Role: X/Y-axis configured resolver replacement delivering true 360° analog outputs without mechanical gearing or slip rings. Use Value: Eliminates wear-prone mechanical interfaces; 4 µs update rate supports fast torque response in closed-loop velocity control loops. |
Use Scenario: Angle input for Park/Clarke transforms in automotive EPS and electric powertrain inverters requiring ISO 26262 ASIL-B compliance. IC Role / Device Role / Timing Role: Safety-critical position source feeding dual-core MCUs with redundant angle validation paths. Use Value: Programmable ferrite sensitivity (BAC-100) enables robust operation under magnetic interference; ratiometric outputs simplify fault detection logic. |
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 optimized (BAA), same SOIC-8 package and 40 mT range; higher TCS (350 ppm/°C) vs. ferrite (2000 ppm/°C). | Better high-temperature stability above 125°C; requires SmCo magnet assembly, increasing cost and supply chain complexity. | Select BAA-100 only if operating >135°C or magnet eccentricity demands tighter TCS matching to SmCo field decay. |
| MLX90380LGO-BAC-100-RE | TSSOP-16 dual-die fully redundant architecture; identical BAC-100 ferrite sensitivity and X/Y axis but with duplicated signal chains. | Required for ASIL-D systems needing hardware redundancy; doubles PCB area and power consumption (18 mA vs. 10 mA). | Choose LGO-BAC-100 only when functional safety certification mandates dual independent sensing paths per ISO 26262. |
Compared with MLX90380LDC-BAC-100-RE, the BAA-100 variant trades ferrite cost advantage for superior thermal stability with SmCo magnets, while the LGO-BAC-100 adds hardware redundancy at the expense of size and power-neither offers pin compatibility or drop-in replacement capability.
Availability
MLX90380LDC-BAC-100-RE is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control systems, and end-of-shaft position sensing requiring stable component supply across automotive, industrial automation, and power tool applications.
Supply support for MLX90380LDC-BAC-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 markets, with core expertise in magnetic sensing 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 and safety-critical motion systems.
FAQ
What magnetic magnet type is MLX90380LDC-BAC-100-RE calibrated for?
The MLX90380LDC-BAC-100-RE is factory-programmed for ferrite magnets, as indicated by the "BAC" option code. Its sensitivity and temperature coefficient (2000 ppm/°C) are optimized to match the flux decay profile of sintered ferrite magnets over −40°C to +150°C, enabling accurate position sensing without external gain adjustment in cost-sensitive motor designs.
Does MLX90380LDC-BAC-100-RE support both 3.3 V and 5 V supplies simultaneously?
No, MLX90380LDC-BAC-100-RE does not support simultaneous 3.3 V and 5 V operation. It uses dedicated VDD3V3 and VDD5V pins: only one supply rail may be active at a time, with the other left floating. The device automatically detects the active rail and configures internal biasing accordingly-mixing supplies risks undefined behavior or damage.
What is the meaning of "X/Y magnetic axis" in MLX90380LDC-BAC-100-RE?
The "X/Y magnetic axis" designation means MLX90380LDC-BAC-100-RE measures magnetic field components along orthogonal in-plane axes (BX and BY), producing OUT1 = COS(θ) and OUT2 = SIN(θ) for end-of-shaft configurations. This axis selection enables direct mounting on rotating shafts with two-pole magnets, eliminating the need for off-axis or through-shaft mechanical arrangements.
Can MLX90380LDC-BAC-100-RE achieve sub-degree angular accuracy?
Yes, MLX90380LDC-BAC-100-RE achieves <±1° total angular error when combined with dynamic compensation algorithms (e.g., offset/gain correction applied before arctan(OUT2/OUT1)). Without compensation, total error is ≤±15° over −40°C to +150°C; the 4 µs update rate and ratiometric outputs enable robust real-time correction in standard motor control MCUs.
Is MLX90380LDC-BAC-100-RE pin-compatible with other MLX90380 variants in SOIC-8?
Yes, all SOIC-8 variants-including MLX90380LDC-BAA-100-RE, MLX90380LDC-BAB-100-RE, and MLX90380LDC-BAC-100-RE-share identical pinout, package dimensions, and electrical interface. Differences are limited to factory-programmed magnetic sensitivity, axis configuration, and temperature coefficient; no PCB redesign is needed when switching between BAA/BAB/BAC variants.
MLX90380LDC-BAC-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:
- 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-100-RE FAQ
1.How can I place an order for MLX90380LDC-BAC-100-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAC-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-BAC-100-RE reliable?
The price and inventory of MLX90380LDC-BAC-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-BAC-100-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAC-100-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAC-100-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAC-100-RE?
MLX90380LDC-BAC-100-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAC-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-BAC-100-RE?
For technical support, including MLX90380LDC-BAC-100-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAC-100-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAC-100-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAC-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-BAC-100-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAC-100-RE?
All MLX90380LDC-BAC-100-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAC-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-BAC-100-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAC-100-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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