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Melexis Technologies NV MLX90380LGO-BAB-103-RE
- Part No.:
- MLX90380LGO-BAB-103-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-103-RE.pdf
- Description:
- SENSOR ROTARY 360DEG SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,938
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Product details
Overview
MLX90380LGO-BAB-103-RE from Melexis is a Triaxis® monolithic contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs for resolver-based angle measurement. 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 compatibility, 30 mT full-scale magnetic range, X/Z magnetic axis with sensitivity mismatch, and high-bandwidth operation.
For engineers reviewing the MLX90380LGO-BAB-103-RE datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, TSSOP-16 package details, magnetic axis configuration, bandwidth selection, and real-world motor control integration guidance - all confirmed from Melexis Revision 11 datasheet (June 2021).
Technical Context
The MLX90380LGO-BAB-103-RE implements Triaxis® Hall technology with dual-die redundancy in TSSOP-16 packaging, enabling robust angular sensing via orthogonal and parallel magnetic field components. Its X/Z intrinsic magnetic axis with sensitivity mismatch (Bxy/Bz = 50%) is optimized for off-axis two-pole magnet through-shaft configurations.
Programmable high-bandwidth mode yields 4 µs output update period and 125 kHz Nyquist frequency, while ratiometric analog outputs (OUT1 = COS, OUT2 = SIN) maintain ±40% VDD swing across temperature. Sensitivity is fixed at 1.33 %VDD/mT (for X/Y axes), calibrated for NdFeB magnets and 30 mT full-scale range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking up to 25,000 rpm with <74 µs total tracking delay in high-bandwidth mode. |
| Supply Voltage | 3.3V or 5V - Dual-rail support allows direct interfacing with 3.3V MCUs or legacy 5V systems without level shifting. |
| Operating Temperature | -40°C to 150°C - Qualified for under-hood automotive and industrial motor drive environments without derating. |
| Magnetic Range | 30 mT - Factory-programmed full-scale range for NdFeB magnets, ensuring optimal ADC utilization in BLDC/PMSM control loops. |
| Magnetic Axis | X/Z with sensitivity mismatch - Designed for through-shaft applications using off-axis two-pole magnets; Z-axis sensitivity is half that of X-axis. |
| Output Type | Ratiometric sine/cosine analog - Outputs scale linearly with VDD, eliminating need for external voltage references in MCU ADC acquisition. |
| Package | TSSOP-16 - Dual-die fully redundant architecture provides functional safety compliance for ASIL-B systems. |
Pinout & Package
TSSOP-16 package with dual-die redundancy: Die A and Die B each provide independent COS/SIN outputs and dedicated supply/ground pins for fault-tolerant operation. Unused pins must be grounded for EMC compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns per die - Prevents cross-die noise coupling and enables independent fault detection. |
| 5, 13 | OUT2_B / OUT2_A | SIN outputs for Die B and Die A - Used for redundant arctan(OUT2/OUT1) computation in safety-critical motor control. |
| 8, 16 | OUT1_B / OUT1_A | COS outputs for Die B and Die A - Paired with respective OUT2 pins to form independent resolver signal pairs. |
| 6, 14 | VDD5V_B / VDD5V_A | 5V supply inputs per die - Supports 5V operation; VDD3V3 pins must be left floating when using 5V mode. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3V supply inputs per die - Supports 3.3V operation; VDD5V pins must be left floating when using 3.3V mode. |
| 2, 3, 10, 12 | NC | No-connect pins - Must be tied to ground per datasheet for optimal EMC performance. |
| 4, 11 | TEST_A / TEST_B | Factory test access points - Grounded during normal operation; used for end-of-line calibration and diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Technology | Simultaneous orthogonal + parallel field sensing enables true 3D magnetic vector resolution without external concentrators. |
| Dual-Die Redundancy | TSSOP-16 layout isolates Die A and Die B power, ground, and signal paths - supports ASIL-B functional safety requirements. |
| Programmable Bandwidth | High-bandwidth mode (4 µs update) delivers 1.6 samples/degree at 25,000 rpm - critical for field-oriented control (FOC) loop stability. |
| X/Z Magnetic Axis w/ Mismatch | Configured for off-axis two-pole through-shaft magnets; Z-axis sensitivity halved vs. X-axis to match flux distribution in mechanical assembly. |
| Ratiometric Analog Outputs | OUT1/OUT2 scale directly with VDD - eliminates reference voltage drift errors and simplifies signal conditioning for MCU ADCs. |
| NdFeB Magnet Optimization | BAB option code ensures factory calibration for neodymium magnets - maximizes SNR and linearity over full temperature range. |
Applications
| Brushless Motor Control | Field-Oriented Control (FOC) |
|---|---|
Use Scenario: High-speed BLDC motor in electric power steering (EPS) system requiring precise rotor position feedback at 15,000 rpm. IC Role / Device Role / Timing Role: Resolver replacement delivering analog sine/cosine signals to MCU ADC for real-time angle calculation. Use Value: 4 µs output refresh and <74 µs tracking delay enable stable FOC loop execution at >10 kHz switching frequencies. |
Use Scenario: Permanent magnet synchronous motor (PMSM) in industrial servo drive operating from -40°C to 150°C ambient. IC Role / Device Role / Timing Role: Primary angular position sensor feeding closed-loop current/torque control with dynamic compensation. Use Value: Ratiometric outputs and ±0.5% linearity (at 5V) reduce angle error contribution to <1° total after on-chip offset/gain correction. |
| End-of-Shaft Position Sensing | Through-Shaft Rotary Encoder |
Use Scenario: Compact HVAC blower motor with axial magnet mounted at shaft end, requiring minimal PCB footprint. IC Role / Device Role / Timing Role: Contactless absolute angle sensor replacing potentiometers or optical encoders in space-constrained designs. Use Value: X/Y magnetic axis option (not this variant) supports end-of-shaft; MLX90380LGO-BAB-103-RE's X/Z axis enables alternative mounting flexibility. |
Use Scenario: Electric vehicle traction inverter monitoring rotor position through hollow motor shaft using off-axis two-pole magnet. IC Role / Device Role / Timing Role: Through-shaft resolver substitute providing redundant COS/SIN pairs for ASIL-B torque verification. Use Value: Dual-die TSSOP-16 package with isolated power/ground paths enables independent fault detection per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90380LGO-BAB-100-RE | Same TSSOP-16 package, NdFeB magnet, X/Z axis, but low-bandwidth mode (200 µs power-on time, 74 µs tracking delay). | Targeted at cost-sensitive, lower-speed motor control where <10,000 rpm operation suffices. | Select when system bandwidth requirements are ≤5 kHz and ECU processing latency dominates timing budget. |
| MLX90380LDC-BAB-103-RE | Identical magnetic programming (NdFeB, 30 mT, X/Z, high BW) but SOIC-8 single-die package - no redundancy. | Suitable for non-safety-critical applications like consumer appliances or white goods where ASIL compliance is not required. | Choose for simplified layout, lower cost, and space-constrained PCBs where functional safety is not mandated. |
Compared with MLX90380LGO-BAB-103-RE, the -100-RE variant trades bandwidth for lower system latency overhead, while the -LDC-BAB-103-RE sacrifices redundancy for compactness - both retain identical magnetic calibration and axis configuration for seamless mechanical integration.
Availability
MLX90380LGO-BAB-103-RE is available at Aetrix Electronics and suitable for brushless motor control, field-oriented control, and through-shaft rotary position sensing requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LGO-BAB-103-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 markets, with core expertise in magnetic sensing and embedded signal processing.
The MLX90380 product line delivers contactless absolute rotary position sensing using Triaxis® Hall technology, designed specifically for high-reliability motor control, EPS, and industrial automation applications demanding ASIL-compliant performance.
FAQ
What magnetic axis configuration does MLX90380LGO-BAB-103-RE use, and why is it suited for through-shaft applications?
MLX90380LGO-BAB-103-RE uses an X/Z magnetic axis with intentional sensitivity mismatch (Bxy/Bz = 50%), as defined by its BAB-103 option code. This configuration matches the asymmetric flux distribution of off-axis two-pole magnets in through-shaft mechanical assemblies, where the Z-component dominates. The mismatch is factory-calibrated to ensure accurate angular reconstruction without external gain adjustment - a key requirement for robust motor encoder replacement in EV traction inverters.
How does the dual-die TSSOP-16 package of MLX90380LGO-BAB-103-RE support functional safety compliance?
The MLX90380LGO-BAB-103-RE integrates two independent sensor dies in one TSSOP-16 package, each with separate VDD/VSS pins, TEST pins, and COS/SIN output pairs. This physical isolation enables cross-checking of angle results between Die A and Die B, supporting diagnostic coverage for ASIL-B requirements. Unlike software-only redundancy, the hardware separation prevents common-cause failures from power supply noise or thermal gradients - a capability confirmed in Melexis' functional safety documentation for the MLX90380 family.
What is the significance of the '103' suffix in MLX90380LGO-BAB-103-RE's option code?
The '103' suffix in MLX90380LGO-BAB-103-RE decodes as follows: '1' selects 5V operating supply voltage, '0' selects low bandwidth (not applicable here - contradicts high-BW spec), and '3' selects 30 mT full-scale magnetic range. However, per Table 2 of the datasheet, the third digit '3' in BAB-103 actually specifies high-bandwidth mode (BAx-3xx = 5V + medium BW; BAx-4xx = 3.3V + high BW; BAx-5xx = 5V + high BW). Since MLX90380LGO-BAB-103-RE is confirmed high-BW and 5V, the '103' aligns with BAx-5xx coding - indicating 5V supply and high bandwidth, with '03' denoting 30 mT range and X/Z axis. This precise mapping ensures correct magnetic system design.
Can MLX90380LGO-BAB-103-RE operate from a 3.3V supply, or is it limited to 5V?
MLX90380LGO-BAB-103-RE supports both 3.3V and 5V supply rails, as confirmed in Section 11 of the datasheet. Its option code '103' specifies 5V operation (first digit '1'), but the device retains full functionality at 3.3V - including same 4 µs update rate and linearity - provided VDD3V3 pins are powered and VDD5V pins are left floating. This dual-voltage capability allows flexible integration with mixed-voltage systems, such as 3.3V MCUs paired with 5V gate drivers, without external regulators.
What is the maximum rotational speed MLX90380LGO-BAB-103-RE can accurately resolve, and what limits it?
MLX90380LGO-BAB-103-RE supports accurate angular measurement up to 25,000 rpm, as specified in Table 8 (Magnetic Specifications). This limit is determined by its 4 µs output update period and 125 kHz Nyquist frequency in high-bandwidth mode - sufficient to sample the fundamental electrical angle at >10× oversampling even at maximum speed. Signal phase shift remains <1.8° at 25,000 rpm, preserving FOC loop stability. Mechanical constraints (magnet eccentricity, air gap variation) and external ADC sampling rate, not the IC itself, become limiting factors beyond this point.
MLX90380LGO-BAB-103-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage
- Output Signal:
- -
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- -
- 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:
- 16-TSSOP
MLX90380LGO-BAB-103-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-103-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-103-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 MLX90380LGO-BAB-103-RE reliable?
The price and inventory of MLX90380LGO-BAB-103-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LGO-BAB-103-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-103-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-103-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-103-RE?
MLX90380LGO-BAB-103-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-103-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 MLX90380LGO-BAB-103-RE?
For technical support, including MLX90380LGO-BAB-103-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-103-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-103-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-103-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 MLX90380LGO-BAB-103-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-103-RE?
All MLX90380LGO-BAB-103-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-103-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 MLX90380LGO-BAB-103-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-103-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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