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Melexis Technologies NV MLX90380LDC-BAB-023-RE
- Part No.:
- MLX90380LDC-BAB-023-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-023-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
MLX90380LDC-BAB-023-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 supports NdFeB magnets, 30 mT full-scale magnetic range, X/Y magnetic axis configuration, and high-bandwidth mode for automotive-grade brushless motor control.
For engineers reviewing the MLX90380LDC-BAB-023-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package mapping, magnetic axis–specific pin roles, real-world angular error performance, and validated alternatives for end-of-shaft PMSM/BLDC rotor position sensing.
Technical Context
The MLX90380LDC-BAB-023-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Y) in-plane magnetic flux components using integrated vertical and planar Hall elements. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, with factory-programmed sensitivity of 1.33 %VDD/mT for 30 mT full-scale range and X/Y axis alignment.
It operates in high-bandwidth mode (4 µs update period), supports dynamic angular compensation, and achieves ≤±1° total angular error with external correction. The device uses internal chopping at 1 MHz and features programmable tracking delay via external filter configuration, enabling optimized ADC sampling synchronization in field-oriented control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time rotor angle tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 30 mT - Factory-programmed for NdFeB magnets; delivers ±40%VDD output swing at TA = 25°C with VDD = nominal. |
| Magnetic Axis Configuration | X/Y - Equal sensitivity on X and Y axes; supports end-of-shaft two-pole magnet mounting with clockwise rotation convention. |
| Supply Voltage Options | 3.3 V or 5 V - Dual-supply pins (VDD3V3/VDD5V) allow flexible MCU interface; only one supply active at a time. |
| Operating Temperature | −40°C to +150°C - Qualified for under-hood automotive and industrial motor drive environments. |
| Total Angular Error | ≤±1° with dynamic compensation - Achieved via off-chip arctan(OUT2/OUT1) with offset/gain/phase correction. |
| Sensitivity Temperature Coefficient | 1100 ppm/°C - Matched to NdFeB magnet drift; minimizes temperature-induced angle error without external calibration. |
Pinout & Package
MLX90380LDC-BAB-023-RE is housed in an RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm body, 1.27 mm pitch). Pin 1 is marked by a beveled corner; unused pins (2, 4) and TEST (3) must be connected to VSS for optimal EMC performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for analog and digital circuitry; mandatory connection point for noise immunity. |
| 2 NC | Not Connected | Internally unconnected; must be tied to VSS per EMC guidelines to suppress parasitic coupling. |
| 3 TEST | Test Pin | Factory test access; externally connected to VSS to prevent floating node and reduce EMI susceptibility. |
| 4 NC | Not Connected | Internally unconnected; tied to VSS to maintain signal integrity and meet AEC-Q100 EMC requirements. |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage output proportional to BY; used with OUT1 for arctangent angle computation. |
| 6 VDD5V | 5 V Supply Input | Active 5 V supply rail; VDD3V3 must remain floating when VDD5V is powered. |
| 7 VDD3V3 | 3.3 V Supply Input | Active 3.3 V supply rail; VDD5V must remain floating when VDD3V3 is powered. |
| 8 OUT1 | Analog Output COS | Ratiometric voltage output proportional to BX; paired with OUT2 to resolve absolute angular position. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal X/Y flux detection enables true 360° absolute angle measurement without mechanical commutation. |
| Ratiometric Sine/Cosine Outputs | OUT1/OUT2 scale linearly with VDD, eliminating supply voltage drift impact on angle calculation accuracy. |
| Programmable Magnetic Axis | X/Y configuration (BAB-023) ensures compatibility with standard end-of-shaft permanent magnet assemblies. |
| High-Speed Update (4 µs) | Supports closed-loop FOC at >20 kHz PWM frequencies with minimal latency between mechanical rotation and electrical angle output. |
| NdFeB Magnet Optimization | BAB option code configures sensitivity, TCS (1100 ppm/°C), and bandwidth specifically for neodymium-iron-boron magnets. |
| On-Chip Chopping (1 MHz) | Reduces 1/f noise and offsets, maintaining <±0.5% linearity over −40°C to +150°C without external trimming. |
Applications
| Electric Power Steering (EPS) | Automotive HVAC Blower Motor |
|---|---|
|
Use Scenario: High-reliability rotor position feedback for 3-phase PMSM in column-assist EPS systems operating at 125°C ambient. IC Role / Device Role / Timing Role: Absolute angular resolver delivering synchronized COS/SIN signals to MCU for field-oriented torque control. Use Value: ≤±1° compensated angle error ensures precise assist torque delivery and meets ISO 26262 ASIL-B functional safety requirements. |
Use Scenario: Compact, cost-optimized position sensing for variable-speed blower motors in engine bay–mounted HVAC modules. IC Role / Device Role / Timing Role: Contactless rotary encoder replacing potentiometers; provides analog angle input to HVAC MCU for fan speed regulation. Use Value: SOIC-8 footprint and −40°C to +150°C rating enable direct PCB integration without heatsinking or shielding. |
| Industrial Servo Drive | Tractor PTO Motor Control |
|
Use Scenario: Rotor position feedback in IPM servo motors used in CNC machine tool spindles with thermal cycling from 0°C to 100°C. IC Role / Device Role / Timing Role: High-bandwidth resolver feeding real-time angle data to FPGA-based motion controller for microsecond-level current loop timing. Use Value: 4 µs update rate and 125 kHz Nyquist frequency support 20 kHz current loop bandwidth with deterministic latency. |
Use Scenario: Harsh-environment position sensing for PTO engagement shafts exposed to dust, vibration, and wide temperature swings in agricultural equipment. IC Role / Device Role / Timing Role: End-of-shaft magnetic sensor interfacing directly with tractor ECU's 3.3 V ADC inputs for clutch position monitoring. Use Value: X/Y axis alignment and NdFeB optimization ensure stable output under mechanical misalignment and thermal shock. |
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-023-RE | SmCo magnet calibration (350 ppm/°C TCS), same 30 mT range and X/Y axis; lower sensitivity temperature drift. | Better suited for high-temperature stability-critical applications where SmCo magnet is used instead of NdFeB. | Select BAA-023 only if SmCo magnets are deployed and tighter TCS matching is required; otherwise BAB-023 is optimal for NdFeB. |
| MLX90380LDC-BAC-023-RE | Ferrite magnet calibration (2000 ppm/°C TCS), same 30 mT range and X/Y axis; higher TCS for low-cost magnet systems. | Targeted at cost-sensitive industrial fans or pumps using ferrite magnets; requires different thermal compensation tuning. | Choose BAC-023 only when ferrite magnets are specified; BAB-023 provides correct TCS and sensitivity for NdFeB. |
Compared with MLX90380LDC-BAA-023-RE and MLX90380LDC-BAC-023-RE, the MLX90380LDC-BAB-023-RE delivers the precise sensitivity temperature coefficient (1100 ppm/°C) and magnetic gain scaling needed for NdFeB-based rotor position systems, avoiding overcompensation or residual thermal angle error.
Availability
MLX90380LDC-BAB-023-RE is available at Aetrix Electronics and suitable for electric power steering, industrial servo drives, and agricultural PTO motor control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX90380LDC-BAB-023-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 magnetic sensing and embedded signal processing.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for high-reliability motor control, targeting applications demanding robustness, precision, and AEC-Q100 qualification across extreme thermal and electromagnetic environments.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-023-RE?
The MLX90380LDC-BAB-023-RE is factory-programmed for X/Y magnetic axis configuration, meaning it measures orthogonal in-plane flux components BX and BY with equal sensitivity. This supports end-of-shaft two-pole magnet mounting and clockwise rotation convention per its datasheet specification.
Does MLX90380LDC-BAB-023-RE support both 3.3 V and 5 V supplies simultaneously?
No - MLX90380LDC-BAB-023-RE has separate VDD3V3 and VDD5V pins but requires only one supply active at a time. When using 5 V, VDD3V3 must be left floating; when using 3.3 V, VDD5V must be left floating. This prevents cross-conduction and ensures proper internal regulator operation.
What is the full-scale magnetic range and sensitivity of MLX90380LDC-BAB-023-RE?
The MLX90380LDC-BAB-023-RE is programmed for a 30 mT full-scale magnetic range with a sensitivity of 1.33 %VDD/mT. At VDD = 5 V, this yields ±2 V output swing (±40% of 5 V); at VDD = 3.3 V, it yields ±1.32 V swing (±40% of 3.3 V), both ratiometric to supply voltage.
Can MLX90380LDC-BAB-023-RE be used in through-shaft configurations?
No - MLX90380LDC-BAB-023-RE's X/Y axis configuration is optimized for end-of-shaft mounting with two-pole magnets. Through-shaft applications require Z/Y or X/Z axis variants (e.g., BAB-123 or BAB-043) that sense axial flux components; using BAB-023 in through-shaft setups results in degraded signal amplitude and angle linearity.
What is the maximum rotational speed supported by MLX90380LDC-BAB-023-RE?
The MLX90380LDC-BAB-023-RE supports up to 25,000 rpm with ≤1.8° signal phase shift and 1.6 samples per degree at high-bandwidth mode. Its 4 µs output refresh rate and 125 kHz Nyquist frequency enable accurate angle capture even under rapid acceleration/deceleration in BLDC and PMSM applications.
MLX90380LDC-BAB-023-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-023-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-023-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-023-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-023-RE reliable?
The price and inventory of MLX90380LDC-BAB-023-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-023-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-023-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-023-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-023-RE?
MLX90380LDC-BAB-023-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-023-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-023-RE?
For technical support, including MLX90380LDC-BAB-023-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-023-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-023-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-023-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-023-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-023-RE?
All MLX90380LDC-BAB-023-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-023-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-023-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-023-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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