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Melexis Technologies NV MLX90380LDC-BAB-025-RE
- Part No.:
- MLX90380LDC-BAB-025-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-025-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,449
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Product details
Overview
MLX90380LDC-BAB-025-RE from Melexis is a monolithic Triaxis® Hall-based resolver IC delivering true 360° absolute rotary position sensing via ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, -40°C to 150°C operating range, and factory-programmed NdFeB magnet sensitivity for 60 mT full-scale magnetic range in SOIC-8 package. It serves as the primary angular position transducer in high-reliability motor control systems.
For engineers reviewing the MLX90380LDC-BAB-025-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, magnetic axis configuration (X/Z), bandwidth setting (high BW), and validated alternative options for automotive-grade BLDC and PMSM rotor position feedback.
Technical Context
The MLX90380LDC-BAB-025-RE 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 synchronized, ratiometric sine and cosine signals referenced to VDD, enabling high-fidelity angle computation via arctangent in companion MCUs.
This variant is preprogrammed for NdFeB magnets, X/Z magnetic axis orientation, 60 mT full-scale range, and high-bandwidth operation (5V supply, 125 kHz Nyquist frequency). Output tracking delay is 12 µs, and internal chopping at 1 MHz suppresses low-frequency noise without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog sine (OUT1) and cosine (OUT2); enables direct ADC interfacing without external reference voltage. |
| Refresh Rate | 4 µs per field component (8 µs total for both outputs); supports real-time position tracking up to 25,000 rpm. |
| Magnetic Range | 60 mT full-scale (BAB-025); optimized for NdFeB magnets in end-of-shaft or through-shaft configurations. |
| Supply Voltage | 5 V only (BAB-025 suffix); VDD3V3 pin must be left floating; ensures stable operation under automotive load dump conditions. |
| Operating Temp | -40°C to 150°C; qualified for under-hood and traction motor applications without derating. |
| Magnetic Axis | X/Z configuration (BAB-025); OUT1 = COS(X), OUT2 = SIN(Z); supports off-axis two-pole magnet mounting. |
| Bandwidth Mode | High bandwidth (BAB-025); 125 kHz Nyquist frequency and 12 µs tracking delay for dynamic motor control loops. |
Pinout & Package
MLX90380LDC-BAB-025-RE uses the SOIC-8 package (5.3 mm × 4.4 mm, 1.27 mm pitch) with exposed pad for thermal performance. Pin 2 and Pin 4 are NC; Pin 3 (TEST) and unused pins must be connected to GND for optimal EMC.
| 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 plane. |
| 2 (NC) | Not Connected | No internal connection; tie to GND per EMC recommendation. |
| 3 (TEST) | Test Pin | Factory test access; connect to GND in final design to minimize noise coupling. |
| 4 (NC) | Not Connected | No internal connection; tie to GND per EMC recommendation. |
| 5 (OUT2) | Analog Output SIN | Sine output for Z-axis field component; ratiometric to VDD5V; drives MCU ADC directly. |
| 6 (VDD5V) | 5V Supply Input | Main power rail; requires local 100 nF decoupling; VDD3V3 must remain unconnected. |
| 7 (VDD3V3) | 3.3V Supply Input | Not used in BAB-025; must be left floating-connecting it may cause malfunction. |
| 8 (OUT1) | Analog Output COS | Cosine output for X-axis field component; ratiometric to VDD5V; paired with OUT2 for angle reconstruction. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-die assemblies. |
| Programmable Magnetic Axis | X/Z orientation enables compatibility with off-axis two-pole magnets in through-shaft motor designs. |
| Ratiometric Outputs | OUT1/OUT2 scale linearly with VDD5V, removing dependency on stable reference voltage and simplifying ADC interface. |
| High-Speed Update | 4 µs per output channel enables closed-loop field-oriented control (FOC) at >20 kHz PWM frequencies. |
| Factory Calibration | BAB-025 includes end-of-line calibration for reduced total angular error (<±1° with dynamic compensation). |
Applications
| Brushless DC Motor Control | Permanent Magnet Synchronous Motor |
|---|---|
Use Scenario: Rotor position feedback for commutation in electric power steering (EPS) and HVAC blower motors. IC Role / Device Role / Timing Role: Primary angular position sensor delivering synchronized sine/cosine outputs to MCU for real-time arctangent calculation. Use Value: Enables precise 6-step or sinusoidal commutation with <±1° total angular error after dynamic compensation, supporting ISO 26262 ASIL-B functional safety requirements. |
Use Scenario: High-accuracy rotor angle acquisition in traction inverters for EV drivetrains. IC Role / Device Role / Timing Role: Resolver replacement providing analog sine/cosine signals to motor control unit for field-oriented control (FOC) loop closure. Use Value: Delivers 12 µs tracking delay and 25,000 rpm capability, enabling fast torque response and smooth low-speed operation without position estimation algorithms. |
| Electric Powertrain Position Sensing | Industrial Servo Feedback |
Use Scenario: Absolute shaft angle measurement in gearbox-integrated e-axle assemblies. IC Role / Device Role / Timing Role: Contactless angular transducer mounted on motor shaft end, interfacing directly with automotive-grade MCU ADC inputs. Use Value: SOIC-8 package with -40°C to 150°C rating ensures reliability in high-temperature gear oil environments; ratiometric outputs eliminate need for precision voltage references. |
Use Scenario: High-resolution position feedback in CNC machine tool spindles and robotic joint actuators. IC Role / Device Role / Timing Role: Core position sensor in closed-loop servo drives requiring deterministic latency and immunity to EMI in factory floor settings. Use Value: 125 kHz Nyquist bandwidth and 4 µs update support 20 kHz current loop bandwidths; X/Z axis configuration accommodates compact off-axis magnet layouts. |
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-023-RE | Same SOIC-8 package, NdFeB magnet, X/Z axis, but 30 mT full-scale range and medium bandwidth (3.3V/5V selectable). | Lower magnetic range suits smaller magnets or tighter air gaps; medium BW increases tracking delay to 29.5 µs. | Select when magnet size or mechanical constraints limit flux density, and loop bandwidth <10 kHz is acceptable. |
| MLX90380LGO-BAB-025-RE | TSSOP-16 dual-die redundant package, identical BAB-025 programming (NdFeB, X/Z, 60 mT, high BW), but with separate die A/B supplies and outputs. | Provides hardware-level redundancy for ASIL-D systems; requires additional PCB area and routing complexity. | Choose for safety-critical traction motor control where fault-tolerant position sensing is mandated by ISO 26262. |
Compared with MLX90380LDC-BAB-023-RE, the MLX90380LDC-BAB-025-RE delivers higher dynamic response and wider magnetic range for demanding motor control; versus MLX90380LGO-BAB-025-RE, it offers cost and space savings at the expense of functional safety redundancy.
Availability
MLX90380LDC-BAB-025-RE is available at Aetrix Electronics and suitable for brushless DC motor control, permanent magnet synchronous motor (PMSM) drives, and electric powertrain position sensing requiring stable component supply across automotive production lifecycles.
Supply support for MLX90380LDC-BAB-025-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 applications, with core expertise in Hall-effect, IR, and pressure sensing technologies.
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 in harsh thermal and EMI environments.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-025-RE?
The MLX90380LDC-BAB-025-RE is factory-programmed for X/Z magnetic axis orientation, meaning OUT1 carries the cosine of the X-axis field component and OUT2 carries the sine of the Z-axis field component. This configuration supports off-axis two-pole magnet mounting in through-shaft applications, as confirmed in Table 2 and Section 8.2 of the datasheet.
Does MLX90380LDC-BAB-025-RE support 3.3V operation?
No, MLX90380LDC-BAB-025-RE is configured for 5V-only operation (suffix "-025" indicates high-bandwidth mode with 5V supply). The VDD3V3 pin must be left floating; connecting it may disrupt functionality. This is explicitly required in Section 9.1 and Figure 13 of the datasheet.
What is the full-scale magnetic range of MLX90380LDC-BAB-025-RE?
The MLX90380LDC-BAB-025-RE has a factory-programmed full-scale magnetic range of 60 mT, corresponding to the "-025" option code (BAx-xx5 = 60 mT range per Table 2). This range is optimized for NdFeB magnets and ensures ±40% VDD output swing at TA = 25°C.
How does the output refresh rate of MLX90380LDC-BAB-025-RE impact motor control performance?
The MLX90380LDC-BAB-025-RE achieves a 4 µs output refresh rate per channel (8 µs total for both sine and cosine), enabling accurate position sampling at up to 25,000 rpm. This low latency supports high-bandwidth field-oriented control loops with minimal phase lag, critical for torque ripple reduction in PMSM and BLDC drives.
Is MLX90380LDC-BAB-025-RE pin-compatible with other MLX90380 variants in SOIC-8?
Yes, all SOIC-8 variants-including MLX90380LDC-BAB-025-RE-share identical pinout, footprint, and mechanical dimensions per Section 14.2 of the datasheet. However, electrical behavior (supply voltage, magnetic range, bandwidth) differs by option code, so PCB design must match the selected variant's operational requirements.
MLX90380LDC-BAB-025-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-025-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-025-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-025-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-025-RE reliable?
The price and inventory of MLX90380LDC-BAB-025-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-025-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-025-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-025-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-025-RE?
MLX90380LDC-BAB-025-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-025-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-025-RE?
For technical support, including MLX90380LDC-BAB-025-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-025-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-025-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-025-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-025-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-025-RE?
All MLX90380LDC-BAB-025-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-025-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-025-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-025-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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