My Inquiry
My Account
Melexis Technologies NV MLX90380LDC-BAB-543-RE
- Part No.:
- MLX90380LDC-BAB-543-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-543-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX90380LDC-BAB-543-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 NdFeB magnet, X/Z magnetic axis, 30 mT full-scale range, and high-bandwidth mode.
For engineers reviewing the MLX90380LDC-BAB-543-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package details, angular error performance under dynamic conditions, magnetic axis configuration, and real-world motor control integration guidance - all specific to the BAB-543 variant.
Technical Context
The MLX90380LDC-BAB-543-RE implements Triaxis® Hall technology with orthogonal and parallel flux sensing on a single die, enabling precise angular measurement using rotating permanent magnets. Its dual analog outputs (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD and programmable via four application pins for sensitivity, filter bandwidth, and magnetic axis selection.
This variant is configured for X/Z intrinsic magnetic axis (COS on X, SIN on Z), 30 mT full-scale range, NdFeB magnet compatibility, and high-bandwidth operation (4 µs update period, 125 kHz Nyquist frequency). It supports end-of-shaft and through-shaft mounting and delivers ≤1° total angular error with dynamic compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking up to 25,000 RPM with minimal latency in field-oriented control loops. |
| Operating Supply | 3.3 V or 5 V - Dual-rail support allows direct interface with common MCU ADC reference voltages without level shifting. |
| Temperature Range | -40°C to +150°C - Qualified for under-hood automotive and industrial motor drive environments without derating. |
| Magnetic Axis | X/Z - COS output responds to BX, SIN output to BZ; optimized for off-axis two-pole magnet configurations in through-shaft setups. |
| Full-Scale Range | 30 mT - Factory-programmed sensitivity ensures ±40% VDD output swing at nominal field, matching NdFeB magnet strength profiles. |
| Angular Accuracy | ±1° with dynamic compensation - Achieved via external ECU correction of offset, gain, and phase; linearity error only from IC itself. |
| Bandwidth Mode | High - Configured for fastest response (125 kHz Nyquist), minimizing tracking delay (12 µs) in high-speed BLDC/PMSM commutation. |
Pinout & Package
MLX90380LDC-BAB-543-RE is housed in an industry-standard SOIC-8 package (5.0 mm × 6.2 mm, 1.27 mm pitch), RoHS-compliant, with exposed pad optional per variant. Unused pins (NC) and TEST must be tied to ground for optimal EMC performance.
| 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; requires grounding per EMC guidelines to suppress noise coupling. |
| 3 TEST | Test Pin | Factory test access; grounded during normal operation to prevent parasitic oscillation and improve immunity. |
| 4 NC | Not Connected | No internal connection; grounding required for consistent ESD path and signal integrity. |
| 5 OUT2 | Analog Output SIN | Sine waveform output referenced to VDD; ratiometric, 0–100% VDD swing; interfaces directly to 12-bit+ MCU ADC inputs. |
| 6 VDD5V | 5 V Supply Input | Active 5 V rail; when used, VDD3V3 must remain floating per datasheet to avoid conflict. |
| 7 VDD3V3 | 3.3 V Supply Input | Active 3.3 V rail; when used, VDD5V must remain floating; supports lower-power MCU integration. |
| 8 OUT1 | Analog Output COS | Cosine waveform output referenced to VDD; paired with OUT2 for arctan(OUT2/OUT1) angle computation. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X/Y) flux detection enables robust 3D field reconstruction without mechanical alignment constraints. |
| Ratiometric Sine/Cosine Outputs | Outputs scale linearly with VDD, eliminating need for separate voltage references and simplifying ADC calibration in variable-supply systems. |
| Programmable Magnetic Axis | X/Z configuration (BAB-543) supports through-shaft topologies with two-pole magnets, reducing mechanical tolerance sensitivity vs. X/Y. |
| High-Speed Update (4 µs) | Enables sub-degree angle resolution at >20,000 RPM, critical for high-dynamic PMSM torque control and vibration suppression algorithms. |
| NdFeB Magnet Optimization | Factory-tuned sensitivity and temperature coefficient (TCS ≈ 1100 ppm/°C) match neodymium-boron-iron magnet flux decay over temperature. |
| Dynamic Angular Error Compensation | Supports external ECU-based offset/gain/phase correction to reduce total angular error to ±1° across full temperature and speed range. |
Applications
| Brushless Motor Commutation | PMSM Field-Oriented Control |
|---|---|
|
Use Scenario: Real-time rotor position feedback for six-step or sinusoidal commutation in 3-phase BLDC motors driving HVAC blowers or power tools. IC Role / Device Role / Timing Role: Resolver-replacement angular sensor providing synchronized COS/SIN outputs to MCU for electronic commutation timing. Use Value: Eliminates slip rings and brushes while maintaining <1° electrical angle accuracy at 25,000 RPM, extending motor service life and reducing EMI. |
Use Scenario: High-precision rotor position input for vector control in traction inverters and servo drives requiring torque ripple <2%. IC Role / Device Role / Timing Role: Primary angle source feeding Park/Clarke transforms; outputs sampled synchronously with PWM carrier for minimum latency. Use Value: 4 µs update rate and 12 µs tracking delay enable current-loop bandwidths >5 kHz, improving dynamic torque response and efficiency. |
| Electric Power Steering (EPS) | Industrial Rotary Actuators |
|
Use Scenario: Redundant-angle sensing in dual-motor EPS systems where primary and secondary sensors feed independent ASIL-D controllers. IC Role / Device Role / Timing Role: Safety-critical position monitor delivering fault-tolerant analog signals compliant with ISO 26262 ASIL B requirements. Use Value: -40°C to 150°C operation and AEC-Q100 qualification ensure reliability in under-hood environments; ratiometric outputs simplify safety diagnostics. |
Use Scenario: Position feedback in valve actuators, robotic joints, and CNC rotary tables operating in dusty, high-vibration industrial settings. IC Role / Device Role / Timing Role: Contactless absolute position transducer replacing potentiometers and optical encoders subject to wear and contamination. Use Value: SOIC-8 package withstands mechanical shock; X/Z axis configuration tolerates magnet eccentricity up to ±0.5 mm, reducing assembly cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LDC-BAB-043-RE | Same SOIC-8 package and BAB magnet code, but configured for X/Y magnetic axis and 30 mT range with low-bandwidth mode (74 µs tracking delay). | Better suited for slower-speed end-of-shaft applications where mechanical simplicity outweighs latency requirements. | Select when magnet placement is axial (X/Y), speed <5,000 RPM, and system-level filtering can compensate for higher tracking delay. |
| MLX90380LGO-BAB-543-RE | TSSOP-16 dual-die fully redundant package; identical BAB-543 programming (X/Z, 30 mT, high BW), but with duplicated signal paths and independent supplies. | Required for ASIL-D or SIL-3 functional safety architectures needing hardware redundancy and fault detection. | Choose when safety certification mandates dual-channel independence - not a drop-in replacement due to different footprint and pin count. |
Compared with MLX90380LDC-BAB-043-RE, the -543 variant delivers 6× faster angle update for high-dynamic control; versus MLX90380LGO-BAB-543-RE, it trades redundancy for smaller size and lower BOM cost in non-safety-critical applications.
Availability
MLX90380LDC-BAB-543-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial rotary actuator designs requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAB-543-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 wireless communication ICs.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for motor control and safety-critical systems, designed to replace resolvers and optical encoders with robust, compact, and programmable analog solutions.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-543-RE?
The MLX90380LDC-BAB-543-RE is factory-programmed for X/Z intrinsic magnetic axis: OUT1 (COS) responds to the X-axis magnetic field component (BX), and OUT2 (SIN) responds to the Z-axis component (BZ). This configuration is optimized for through-shaft, off-axis two-pole magnet arrangements and is explicitly defined by the "BAB-543" option code per Melexis ordering documentation.
Does MLX90380LDC-BAB-543-RE support both 3.3V and 5V supply simultaneously?
No - MLX90380LDC-BAB-543-RE supports either 3.3V or 5V operation, but not both simultaneously. When using VDD5V (pin 6), VDD3V3 (pin 7) must be left floating; conversely, when using VDD3V3, VDD5V must be unconnected. This prevents supply contention and ensures correct internal biasing per the datasheet's Application Diagrams section.
What is the total angular error specification for MLX90380LDC-BAB-543-RE?
The MLX90380LDC-BAB-543-RE achieves ±1° total angular error when dynamic compensation (offset, gain, and phase correction) is applied in the host ECU. Without correction, total angular error is ±10° at 25°C and ±15° across -40°C to 150°C. The ±1° figure reflects only the IC's linearity contribution - mechanical and magnetic system errors must be addressed separately.
Can MLX90380LDC-BAB-543-RE be used with ferrite or SmCo magnets?
No - MLX90380LDC-BAB-543-RE is specifically programmed for NdFeB (neodymium-iron-boron) magnets, as indicated by the "BAB" prefix in its option code. Using ferrite (BAC) or SmCo (BAA) magnets would result in suboptimal sensitivity, increased temperature-induced error, and potential saturation or insufficient output swing due to mismatched flux density profiles.
Is MLX90380LDC-BAB-543-RE pin-compatible with other MLX90380 variants in SOIC-8?
Yes - all SOIC-8 variants of the MLX90380, including MLX90380LDC-BAB-543-RE, share identical pinout, footprint, and electrical interface. Differences are purely functional (magnetic axis, sensitivity, bandwidth) and programmed at factory; no PCB layout change is needed when substituting within the SOIC-8 family.
MLX90380LDC-BAB-543-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-BAB-543-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-543-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-543-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-543-RE reliable?
The price and inventory of MLX90380LDC-BAB-543-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-543-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-543-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-543-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-543-RE?
MLX90380LDC-BAB-543-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-543-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-543-RE?
For technical support, including MLX90380LDC-BAB-543-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-543-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-543-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-543-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-543-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-543-RE?
All MLX90380LDC-BAB-543-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-543-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-543-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-543-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX90380LDC-BAB-543-RE Tags
-
TLV493DA1B6HTSA2
Infineon Technologies
-
EVW-AE4001B14
Panasonic Electronic Components
-
3382G-1-103G
Bourns Inc.
-
TLE5501E0001XUMA1
Infineon Technologies
-
HAL830UT-A
TDK-Micronas GmbH
-
TLE5009E1000FUMA1
Infineon Technologies
-
TLE5501E0002XUMA1
Infineon Technologies
-
HAL3725DJ-A
TDK-Micronas GmbH
-
HAL3727DJ-A
TDK-Micronas GmbH
-
HMC1501-TR
Honeywell Aerospace
-
HMC1512-TR
Honeywell Aerospace
-
AAS33001LLEATR-5
Allegro MicroSystems
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
