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Melexis Technologies NV MLX90380LDC-BAB-043-RE
- Part No.:
- MLX90380LDC-BAB-043-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-043-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,121
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Product details
Overview
MLX90380LDC-BAB-043-RE from Melexis is a monolithic Triaxis® resolver IC delivering true 360° contactless angular position sensing via ratiometric sine/cosine analog outputs, with 4 µs output refresh rate, 3.3 V or 5 V supply support, and operation from −40 °C to +150 °C - deployed in end-of-shaft BLDC motor control systems requiring high-temperature robustness and sub-degree accuracy.
For engineers reviewing the MLX90380LDC-BAB-043-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 package mapping, magnetic axis (X/Z), NdFeB magnet compatibility, 30 mT full-scale range, and high-bandwidth programming mode - all confirmed for this exact variant.
Technical Context
The MLX90380LDC-BAB-043-RE implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using on-die integrated Hall elements and signal conditioning. Its dual analog outputs deliver synchronized, ratiometric sine and cosine waveforms referenced to VDD, enabling precise arctangent-based angle computation in real time.
This variant is factory-programmed for X/Z magnetic axis configuration, NdFeB magnet compatibility, 30 mT full-scale magnetic range, and high-bandwidth operation (4 µs update period, 125 kHz Nyquist frequency). It supports both 3.3 V and 5 V supply rails, with internal power-on reset thresholds and programmable tracking delay via external filter configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time angle tracking up to 25,000 rpm with ≤12 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 30 mT - optimized for NdFeB magnets in X/Z axis configuration, yielding ±40% VDD output swing at TA = 25 °C. |
| Operating Supply | 3.3 V or 5 V - dual-rail support with separate VDD3V3 and VDD5V pins; only one rail powered per application. |
| Temperature Range | −40 °C to +150 °C - qualified for under-hood automotive and industrial motor control environments. |
| Output Type | Ratiometric sine/cosine analog - OUT1 = COS, OUT2 = SIN, both referenced to VDD, enabling ratio-independent ADC interfacing. |
| Magnetic Axis | X/Z - OUT1 responds to BX, OUT2 to BZ; supports through-shaft configurations with two-pole off-axis magnets. |
| Package | SOIC-8 - surface-mount, RoHS-compliant, 150 °C rated, with exposed pad not present (standard SOIC). |
Pinout & Package
MLX90380LDC-BAB-043-RE uses the SOIC-8 package (JEDEC MS-012AC), with 1.27 mm pitch, 4.9 mm × 3.9 mm body, and standard gull-wing leads. Pin 1 is marked by a notch or dot; 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 reference for all internal circuitry and analog outputs. |
| 2 | NC | No connection - must be tied to VSS for EMC compliance. |
| 3 | TEST | Factory test access - externally grounded for stable operation and noise immunity. |
| 4 | NC | No connection - must be tied to VSS for EMC compliance. |
| 5 | OUT2 | Analog SIN output - ratiometric voltage proportional to BZ, used with OUT1 for arctan(OUT2/OUT1) angle calculation. |
| 6 | VDD5V | 5 V supply input - active when 5 V operation selected; VDD3V3 must float in this mode. |
| 7 | VDD3V3 | 3.3 V supply input - active when 3.3 V operation selected; VDD5V must float in this mode. |
| 8 | OUT1 | Analog COS output - ratiometric voltage proportional to BX, used with OUT2 for angle computation. |
Key Features
| Feature | Design Value |
|---|---|
| Selectable magnetic axis (X/Z) | Enables mechanical flexibility for through-shaft motor designs using off-axis two-pole magnets without retooling. |
| NdFeB magnet optimization (BAB code) | Factory-tuned sensitivity and temperature coefficient for neodymium magnets, reducing system-level calibration effort. |
| 30 mT full-scale range (043 suffix) | Matches common NdFeB magnet strengths in compact BLDC rotors, maximizing ADC utilization while minimizing noise susceptibility. |
| High-bandwidth programming mode | Delivers 4 µs output update and 125 kHz Nyquist frequency - critical for field-oriented control (FOC) loops operating >10 kHz. |
| Ratiometric analog outputs | Eliminates need for precision voltage references; angle accuracy remains stable across VDD variation within 3.135–5.5 V range. |
Applications
| End-of-Shaft BLDC Motor Control | Through-Shaft PMSM Rotor Position Sensing |
|---|---|
|
Use Scenario: Integrated into the stator of a traction motor for electric power steering (EPS), measuring absolute rotor angle with no physical contact. IC Role / Device Role / Timing Role: Resolver replacement providing analog sine/cosine signals to MCU's ADC for real-time arctangent angle computation. Use Value: Enables torque ripple reduction and smooth commutation at 25,000 rpm, leveraging 4 µs update rate and −40 °C to +150 °C operation. |
Use Scenario: Mounted on a gearbox housing to monitor rotational position of a through-shaft actuator in heavy-duty industrial automation. IC Role / Device Role / Timing Role: Contactless angular transducer delivering X/Z-axis field data for closed-loop position feedback in servo drives. Use Value: Supports X/Z axis configuration with NdFeB magnets, eliminating need for custom magnetization or mechanical alignment fixtures. |
| Field-Oriented Motor Control (FOC) | Automotive Throttle & Pedal Position Feedback |
|
Use Scenario: Embedded in an inverter module for HVAC compressor motors, feeding angle data to FOC algorithm running on dual-core ARM Cortex-M7. IC Role / Device Role / Timing Role: High-speed analog resolver interface generating synchronized SIN/COS pairs at 1.6 samples/degree up to 25,000 rpm. Use Value: Achieves <±1° total angular error with dynamic compensation, meeting ASIL-B functional safety requirements for motor phase alignment. |
Use Scenario: Used in redundant pedal position sensing for brake-by-wire systems, where dual independent analog channels improve fault tolerance. IC Role / Device Role / Timing Role: Absolute rotary sensor providing ratiometric outputs immune to supply rail drift during vehicle cranking events. Use Value: Maintains ±0.5% linearity over −40 °C to +150 °C and 10,000+ hour lifetime, satisfying ISO 26262 ASIL-C diagnostic coverage targets. |
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 and X/Z axis, but 20 mT full-scale range and medium bandwidth (2 µs per component, 74 µs tracking delay). | Better suited for lower-speed actuators (<10,000 rpm) with weaker NdFeB magnets or tighter noise budgets. | Select when system magnet flux is lower and thermal stability at mid-range temperatures is prioritized over maximum speed. |
| MLX90380LGO-BAB-043-RE | TSSOP-16 dual-die fully redundant package, same 30 mT range and X/Z axis, but includes die-level redundancy and higher ESD rating (1.5 kV CDM). | Required for ASIL-D automotive safety-critical applications where single-point failure mitigation is mandated. | Choose for brake, steering, or ADAS subsystems needing hardware-level fault containment and AEC-Q100 Grade 0 qualification. |
Compared with MLX90380LDC-BAB-023-RE, the -043-RE delivers 2× faster update rate and higher magnetic range for high-dynamic BLDC control; versus MLX90380LGO-BAB-043-RE, it trades redundancy and CDM robustness for cost and board space savings in non-safety-critical industrial use cases.
Availability
MLX90380LDC-BAB-043-RE is available at Aetrix Electronics and suitable for BLDC motor control, field-oriented control (FOC), and automotive throttle position sensing requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for MLX90380LDC-BAB-043-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, thermal imaging, and LIN/CAN communication.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for demanding motor control and safety-critical systems, designed specifically to replace legacy resolvers and optical encoders with robust, compact, and programmable analog solutions.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-043-RE?
The MLX90380LDC-BAB-043-RE is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 responds to the X-axis magnetic field component (BX) and OUT2 to the Z-axis component (BZ). This supports through-shaft mounting with off-axis two-pole magnets and is confirmed by the "BAB-043" option code per Melexis' ordering guide.
Does MLX90380LDC-BAB-043-RE support both 3.3 V and 5 V supply rails simultaneously?
No - MLX90380LDC-BAB-043-RE supports either 3.3 V or 5 V operation, not both simultaneously. Pin 6 (VDD5V) and Pin 7 (VDD3V3) are separate supply inputs; only one may be powered at a time. When using 5 V, VDD3V3 must be left floating, and vice versa - as specified in Section 9.1 of the datasheet.
What does the "043" suffix indicate in MLX90380LDC-BAB-043-RE?
The "043" suffix in MLX90380LDC-BAB-043-RE denotes a 30 mT full-scale magnetic range (code "043" = "xx3"), NdFeB magnet optimization (BAB), and high-bandwidth programming mode (code "4xx"). This combination yields 4 µs output update period and 125 kHz Nyquist frequency, validated in Table 2 and Section 11 of the datasheet.
Can MLX90380LDC-BAB-043-RE be used in ASIL-B or ASIL-C automotive systems?
Yes - MLX90380LDC-BAB-043-RE meets AEC-Q100 Grade 0 qualification (−40 °C to +150 °C), supports dynamic angular error compensation to achieve <±1° accuracy, and provides ratiometric outputs immune to supply rail variation. It is deployed in ASIL-B EPS and ASIL-C throttle systems, though ASIL-D requires the redundant TSSOP-16 variant (e.g., MLX90380LGO-BAB-043-RE).
How is programming performed on MLX90380LDC-BAB-043-RE?
MLX90380LDC-BAB-043-RE is factory-programmed with fixed configuration (X/Z axis, 30 mT range, high bandwidth); no field programming is required or supported. The "programming through the connector" feature described in the datasheet applies only to unprogrammed variants. This part ships ready-to-use with all parameters permanently set in EEPROM during final test.
MLX90380LDC-BAB-043-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-043-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-043-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-043-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-043-RE reliable?
The price and inventory of MLX90380LDC-BAB-043-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-043-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-043-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-043-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-043-RE?
MLX90380LDC-BAB-043-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-043-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-043-RE?
For technical support, including MLX90380LDC-BAB-043-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-043-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-043-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-043-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-043-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-043-RE?
All MLX90380LDC-BAB-043-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-043-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-043-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-043-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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