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Melexis Technologies NV MLX90380LDC-BAB-123-RE
- Part No.:
- MLX90380LDC-BAB-123-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAB-123-RE.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,097
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Product details
Overview
MLX90380LDC-BAB-123-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 use with 30 mT full-scale magnetic range and X/Z magnetic axis configuration.
For engineers reviewing the MLX90380LDC-BAB-123-RE datasheet, pinout, applications, or equivalent options, this device serves as a high-accuracy, automotive-grade angular position transducer requiring precise magnetic system integration, ratiometric ADC interfacing, and end-of-shaft or through-shaft mechanical mounting.
Technical Context
The MLX90380LDC-BAB-123-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 (OUT1 = COS, OUT2 = SIN) are ratiometric to VDD, with programmable filter bandwidth enabling optimization for 3.3V or 5V MCU ADC input ranges.
This SOIC-8 variant uses a single die architecture with dedicated VDD3V3 and VDD5V supply pins, internal chopping at 1 MHz, and 4 µs total output update period (2 µs per axis). Magnetic axis selection (X/Z), sensitivity (30 mT), and magnet type (NdFeB) are factory-configured per the BAB-123 option code.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog: OUT1 = COS, OUT2 = SIN, each spanning 5–95% VDD over full magnetic range |
| Output Refresh Rate | 4 µs total - enables real-time angle computation at up to 250 kSPS for high-speed motor control loops |
| Supply Voltage | 3.135–3.6 V (VDD3V3) or 4.5–5.5 V (VDD5V); pins must be used exclusively - no simultaneous biasing |
| Full-Scale Magnetic Range | 30 mT - optimized for NdFeB magnets in end-of-shaft or through-shaft configurations with X/Z axis alignment |
| Operating Temperature | -40°C to +150°C - qualified for under-hood automotive and industrial motor drive environments |
| Total Angular Error | ±1° with dynamic compensation - requires external ECU-based offset/gain/phase correction of raw outputs |
| Linearity | ±0.5% (VDD=5V, output 0.5–4.5 V) - defines maximum deviation from ideal sine/cosine waveform shape |
Pinout & Package
MLX90380LDC-BAB-123-RE is housed in an 8-pin SOIC package (body width 3.9 mm, lead pitch 1.27 mm) with exposed pad not electrically connected. Unused pins (NC) and TEST must be tied to VSS 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 |
| 2 NC | Not Connected | Internally unconnected; tie to VSS for EMC compliance |
| 3 TEST | Test Pin | Factory test access; tie to VSS in application to suppress noise coupling |
| 4 NC | Not Connected | Internally unconnected; tie to VSS for EMC compliance |
| 5 OUT2 | Analog Output SIN | Ratiometric voltage proportional to Bz component; used with OUT1 to compute arctan(OUT2/OUT1) |
| 6 VDD5V | 5V Supply Input | Enable 5V operation only - leave VDD3V3 floating when VDD5V is powered |
| 7 VDD3V3 | 3.3V Supply Input | Enable 3.3V operation only - leave VDD5V floating when VDD3V3 is powered |
| 8 OUT1 | Analog Output COS | Ratiometric voltage proportional to Bx component; paired with OUT2 for absolute angle resolution |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (X/Z) field measurement eliminates need for external flux concentrators or multi-die assemblies |
| Selectable Magnetic Axis | X/Z configuration enables compatibility with both end-of-shaft (two-pole) and through-shaft (multi-pole) magnet arrangements |
| Programmable Sensitivity | 30 mT full-scale range matched to NdFeB magnet strength, maximizing signal-to-noise ratio without external gain stages |
| Ratiometric Outputs | Output voltages scale directly with VDD, removing supply variation impact on angle accuracy when paired with ratiometric ADC |
| High-Speed Update | 4 µs output latency supports closed-loop FOC at >20,000 rpm with minimal phase lag in torque control paths |
Applications
| Brushless Motor Rotor Position | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time angular feedback for field-oriented control of PMSM and BLDC motors in traction inverters and servo drives. IC Role / Device Role / Timing Role: Resolver-replacement position transducer providing synchronized COS/SIN analog outputs for angle computation. Use Value: Enables accurate torque vectoring and commutation timing at 25,000 rpm with ±1° dynamic error after ECU compensation. |
Use Scenario: High-reliability steering angle sensing in automotive EPS modules where ASIL-B compliance is required. IC Role / Device Role / Timing Role: Primary position sensor feeding motor control MCU with ratiometric analog signals immune to supply ripple. Use Value: Supports fail-operational design via external ECU correction algorithms while meeting -40°C to 150°C ambient requirements. |
| Industrial Servo Actuators | Robot Joint Encoders |
Use Scenario: Compact, non-contact angular measurement in space-constrained robotic joint actuators and CNC spindles. IC Role / Device Role / Timing Role: Contactless rotary position detector mounted directly on motor shaft with end-of-shaft magnet configuration. Use Value: Eliminates wear-prone potentiometers or optical encoders; maintains ±0.5% linearity across 3.135–3.6 V supply range. |
Use Scenario: Multi-axis joint angle feedback in collaborative robots requiring high EMC immunity and thermal stability. IC Role / Device Role / Timing Role: Through-shaft configured position sensor interfaced to ARM-based motion controllers via precision ADC inputs. Use Value: Delivers 4 µs output update and <2.2%VDD offset drift over temperature - critical for low-jitter trajectory planning. |
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-043-RE | SmCo magnet support, 50 mT full-scale range, X/Y magnetic axis | Better suited for high-temperature (>125°C) end-of-shaft applications with SmCo magnets; lower sensitivity drift (350 ppm/°C) | Select when using SmCo magnets and requiring tighter TCS stability over wide temperature range |
| MLX90380LGO-BAB-123-RE | TSSOP-16 dual-die redundant architecture, identical BAB-123 programming | Provides functional redundancy for ASIL-D safety-critical systems; requires larger PCB footprint and separate ground planes | Choose for ISO 26262 ASIL-D designs where fault tolerance mandates dual independent dies |
Compared with MLX90380LDC-BAB-123-RE, the BAA-043-RE offers superior temperature coefficient stability for SmCo systems but lacks NdFeB optimization, while the LGO-BAB-123-RE delivers hardware-level redundancy at the cost of increased layout complexity and power consumption - neither is pin-compatible due to differing package and pin count.
Availability
MLX90380LDC-BAB-123-RE is available at Aetrix Electronics and suitable for brushless motor control, electric power steering, and industrial servo actuator designs requiring stable component supply across automotive and industrial temperature grades.
Supply support for MLX90380LDC-BAB-123-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 contactless absolute angular position sensing using Triaxis® Hall technology, designed specifically for resolver replacement in high-reliability motor control and steering systems.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAB-123-RE?
The MLX90380LDC-BAB-123-RE is factory-programmed for X/Z magnetic axis configuration, meaning OUT1 responds to the Bx field component and OUT2 to the Bz component. This supports both end-of-shaft (two-pole magnet) and through-shaft (multi-pole magnet) installations per the BAB-123 option code definition.
Can MLX90380LDC-BAB-123-RE operate from both 3.3V and 5V supplies simultaneously?
No. MLX90380LDC-BAB-123-RE must be powered from either VDD3V3 (3.135–3.6 V) or VDD5V (4.5–5.5 V), not both. When using VDD5V, the VDD3V3 pin must remain floating; when using VDD3V3, the VDD5V pin must be left unconnected - mixing supplies risks undefined behavior.
What is the significance of the 'BAB' prefix in MLX90380LDC-BAB-123-RE?
The 'BAB' segment identifies NdFeB magnet compatibility, 30 mT full-scale magnetic range (third digit '3'), and X/Z magnetic axis (second digit '2'). This factory-programmed configuration ensures optimal sensitivity matching and temperature drift compensation for neodymium-iron-boron permanent magnets in demanding motor control applications.
How does MLX90380LDC-BAB-123-RE achieve ±1° total angular error?
The ±1° total angular error specification for MLX90380LDC-BAB-123-RE applies only when dynamic compensation (offset, gain, and phase correction) is applied by the host ECU prior to arctan(OUT2/OUT1) computation. The raw sensor contributes ±10° error at 25°C and ±15° across -40°C to 150°C without correction.
Is MLX90380LDC-BAB-123-RE pin-compatible with other MLX90380 variants in SOIC-8?
Yes. All SOIC-8 variants including MLX90380LDC-BAB-123-RE share identical pinout, package dimensions, and electrical interface. Differences are limited to factory-programmed parameters (magnet type, sensitivity, axis, bandwidth), not physical connectivity or supply requirements.
MLX90380LDC-BAB-123-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-123-RE FAQ
1.How can I place an order for MLX90380LDC-BAB-123-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAB-123-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-123-RE reliable?
The price and inventory of MLX90380LDC-BAB-123-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-123-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAB-123-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAB-123-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAB-123-RE?
MLX90380LDC-BAB-123-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAB-123-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-123-RE?
For technical support, including MLX90380LDC-BAB-123-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAB-123-RE requirements.
6.How does Aetrix verify that MLX90380LDC-BAB-123-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAB-123-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-123-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAB-123-RE?
All MLX90380LDC-BAB-123-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAB-123-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-123-RE part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAB-123-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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