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Melexis Technologies NV MLX90380LGO-BAC-100-TU
- Part No.:
- MLX90380LGO-BAC-100-TU
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAC-100-TU.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,262
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Product details
Overview
MLX90380LGO-BAC-100-TU from Melexis is a Triaxis® monolithic contactless rotary position sensor IC delivering true 360° sine/cosine analog outputs with 4 µs output refresh rate, 3.3 V/5 V dual-supply support, and operation from −40 °C to +150 °C. It uses Ferrite magnets (BAC option), supports Z/Y magnetic axis configuration, and is designed for end-of-shaft or through-shaft motor position sensing in automotive EPS and industrial servo drives.
For engineers reviewing the MLX90380LGO-BAC-100-TU datasheet, pinout, applications, or equivalent options, this page provides verified technical context, TSSOP-16 package details, magnetic axis–specific pin definitions, ratiometric output behavior, and validated alternatives for high-reliability angular sensing in BLDC and PMSM control systems.
Technical Context
The MLX90380LGO-BAC-100-TU implements Triaxis® Hall technology with orthogonal and in-plane magnetic field sensitivity, enabling precise angular resolution using rotating permanent magnets. Its dual-die TSSOP-16 architecture provides full redundancy: Die A (pins 13–16) and Die B (pins 5–8) each deliver independent SIN/COS analog outputs with matched timing and programmable bandwidth.
It supports Z/Y magnetic axis configuration (BAC-100), where OUT1 represents COS(Z) and OUT2 represents SIN(Y), with factory-programmed 70 mT full-scale range and Ferrite magnet optimization. Sensitivity is fixed at 0.57 %VDD/mT, and output offset is trimmed to 50 %VDD at B = 0 mT, TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - Enables real-time angle tracking up to 25,000 rpm with ≤17.5 µs total tracking delay in high-bandwidth mode. |
| Operating Supply | 3.3 V or 5 V - Dual-rail support allows direct interface with 3.3 V MCUs or legacy 5 V systems; VDD3V3 and VDD5V pins are separate and must not be shorted. |
| Full-Scale Magnetic Range | 70 mT - Factory-programmed for Ferrite magnets (BAC suffix); defines ±40 %VDD output swing at TA = 25 °C. |
| Sensitivity | 0.57 %VDD/mT - Fixed per BAC-100 option; enables accurate scaling of analog outputs into ADC input ranges without external gain stages. |
| Operating Temperature | −40 °C to +150 °C - Qualified for under-hood automotive and industrial motor control environments; junction limit is +165 °C. |
| Output Linearity | ±0.5 % - Measured over 360° at VDD = 5 V, output voltage within [0.5 V; 4.5 V]; critical for field-oriented control accuracy. |
| Total Angular Error (uncorrected) | ±10° at 25 °C - Reduces to ±1° with dynamic ECU-based offset/gain/phase compensation applied pre-arctan. |
Pinout & Package
TSSOP-16 package with exposed thermal pad (non-electrical), 0.65 mm pitch, 5.0 mm × 4.4 mm body size, and dual-die redundant layout for functional safety compliance (ASIL-B capable).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B - mandatory for noise isolation and EMC robustness; both must connect to system ground. |
| 5, 13 | OUT2_B / OUT2_A | SIN analog outputs - Die B and Die A each provide independent SIN signals; used for redundancy validation or differential processing. |
| 8, 16 | OUT1_B / OUT1_A | COS analog outputs - Paired with respective OUT2 pins; Z/Y axis assignment means OUT1 = COS(Z), OUT2 = SIN(Y). |
| 6, 14 | VDD5V_B / VDD5V_A | 5 V supply inputs - Must be decoupled locally (100 nF + 2.2 nF); VDD3V3 pins left floating when using 5 V mode. |
| 7, 15 | VDD3V3_B / VDD3V3_A | 3.3 V supply inputs - Used exclusively in 3.3 V mode; VDD5V pins left floating; both rails never powered simultaneously. |
| 2, 3, 10, 11, 12 | NC / TEST_A / TEST_B | No-connect or test pins - For optimal EMC, all NC and TEST pins must be tied to ground; not for user configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Technology | Simultaneous orthogonal (Z) and in-plane (Y) field detection enables single-chip 360° absolute angle measurement without external concentrators or multi-sensor assemblies. |
| Ratiometric Sine/Cosine Outputs | Outputs scale directly with VDD (±2.5 % ratiometry), eliminating need for precision voltage references and simplifying ADC calibration across supply variations. |
| Z/Y Magnetic Axis Configuration | Optimized for through-shaft applications with two-pole off-axis magnets; Z-axis sensitivity is half that of Y-axis (BAC-100), matching typical flux distribution profiles. |
| Ferrite Magnet Optimization | BAC option ensures stable sensitivity temperature coefficient (2000 ppm/°C target) and offset drift performance with low-cost Ferrite magnets across −40 °C to +150 °C. |
| Programmable Bandwidth | High-bandwidth mode (4 µs update) supports >25,000 rpm motor speeds; medium/low modes reduce noise and EMI in slower, high-precision applications. |
Applications
| Electric Power Steering (EPS) | Industrial Servo Motor Feedback |
|---|---|
|
Use Scenario: Real-time rotor position sensing in brushless DC motors driving steering column assist mechanisms. IC Role / Device Role / Timing Role: Primary resolver replacement delivering analog SIN/COS for FOC algorithms in ASIL-C EPS ECUs. Use Value: Enables <1° angle error after dynamic compensation, meeting ISO 26262 functional safety requirements without external interpolation. |
Use Scenario: Closed-loop position feedback in CNC machine spindle drives operating continuously at 15,000 rpm. IC Role / Device Role / Timing Role: Contactless angular encoder interfacing directly to 16-bit SAR ADCs in motion controllers. Use Value: 4 µs update rate and ±0.5 % linearity ensure sub-millisecond torque response and <0.05 % speed ripple under load variation. |
| Permanent Magnet Synchronous Motor (PMSM) | Robot Joint Actuation |
|
Use Scenario: Rotor position acquisition in HVAC compressor PMSMs requiring high efficiency and low acoustic noise. IC Role / Device Role / Timing Role: High-accuracy analog resolver alternative for sinusoidal commutation in inverter gate drivers. Use Value: Ratiometric outputs eliminate reference voltage drift errors; −40 °C to +150 °C rating supports sealed, oil-cooled motor housings. |
Use Scenario: Compact joint-angle sensing in collaborative robot arms where space, weight, and EMI immunity are critical. IC Role / Device Role / Timing Role: Dual-die TSSOP-16 provides hardware redundancy for SIL-2 safety integrity without doubling PCB area. Use Value: Z/Y axis configuration allows integration with off-axis magnets inside hollow shafts, reducing mechanical complexity and assembly cost. |
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 |
|---|---|---|---|
| MLX90380LGO-BAB-100-RE | Uses NdFeB magnet (BAB), 70 mT range, 1100 ppm/°C TCS vs. 2000 ppm/°C for Ferrite; lower offset drift at high temperature. | Better suited for high-accuracy, narrow-temperature-range industrial encoders where magnet cost is secondary. | Select BAB-100 if NdFeB magnets are already deployed and tighter offset stability above 100 °C is required. |
| MLX90380LDC-BAC-100-RE | SOIC-8 single-die variant (not redundant); identical BAC-100 magnetic programming, same 70 mT range and Z/Y axis. | Used in cost-sensitive, non-safety-critical applications like consumer appliance motors or fan speed control. | Choose LDC-BAC-100 for footprint-constrained designs where functional redundancy is unnecessary and SOIC-8 is preferred. |
Compared with MLX90380LGO-BAB-100-RE and MLX90380LDC-BAC-100-RE, the MLX90380LGO-BAC-100-TU uniquely combines Ferrite magnet compatibility, dual-die redundancy in TSSOP-16, and Z/Y axis optimization-making it the only choice for ASIL-B-compliant, through-shaft, high-volume automotive EPS systems requiring long-term magnet stability and zero PCB redesign risk.
Availability
MLX90380LGO-BAC-100-TU is available at Aetrix Electronics and suitable for electric power steering, industrial servo motor feedback, and robotic joint actuation requiring stable component supply across automotive production lifecycles and industrial equipment refresh cycles.
Supply support for MLX90380LGO-BAC-100-TU 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, thermal imaging, and RF communication.
The MLX90380 product line delivers Triaxis® contactless angular position sensing for demanding motor control applications, emphasizing functional safety, wide temperature operation, and magnetic system flexibility across BLDC, PMSM, and EPS architectures.
FAQ
What magnetic axis configuration does MLX90380LGO-BAC-100-TU use, and how is it implemented?
The MLX90380LGO-BAC-100-TU uses the Z/Y magnetic axis configuration, meaning OUT1 carries COS(Z) and OUT2 carries SIN(Y). This is factory-programmed via the BAC-100 option code and optimized for through-shaft applications with off-axis two-pole magnets. The Z-axis sensitivity is half that of the Y-axis (0.57 %VDD/mT vs. 1.14 %VDD/mT), matching typical flux distributions in such setups. No external configuration is needed-the axis mapping is hard-coded in silicon.
Can MLX90380LGO-BAC-100-TU operate from both 3.3 V and 5 V supplies simultaneously?
No, MLX90380LGO-BAC-100-TU cannot operate from both 3.3 V and 5 V supplies simultaneously. Its TSSOP-16 package has separate VDD3V3_A/VDD3V3_B and VDD5V_A/VDD5V_B pins. In 3.3 V mode, only the VDD3V3 pins are powered and VDD5V pins must remain floating; in 5 V mode, only the VDD5V pins are powered and VDD3V3 pins must float. Mixing supplies risks latch-up or undefined behavior per Section 9.2 of the datasheet.
How does the dual-die architecture of MLX90380LGO-BAC-100-TU support functional safety requirements?
The dual-die TSSOP-16 layout of MLX90380LGO-BAC-100-TU provides physically independent signal paths: Die A (OUT1_A/OUT2_A) and Die B (OUT1_B/OUT2_B) each generate full sine/cosine pairs. This enables cross-checking, plausibility validation, and fault detection in ASIL-B systems. Both dies share identical magnetic programming (BAC-100), ensuring matched gain, offset, and timing-critical for safe torque calculation in automotive EPS ECUs without requiring external redundancy logic.
What is the significance of the 'BAC' option code in MLX90380LGO-BAC-100-TU?
The 'BAC' option code in MLX90380LGO-BAC-100-TU specifies three key factory settings: Ferrite magnet type (vs. SmCo or NdFeB), Z/Y magnetic axis orientation, and 70 mT full-scale magnetic range. It also sets the sensitivity temperature coefficient to 2000 ppm/°C-optimized for Ferrite's strong negative TC-and configures internal gain and offset trimming for minimal drift across −40 °C to +150 °C. This option is immutable post-manufacture.
Does MLX90380LGO-BAC-100-TU require external programming or calibration after soldering?
No, MLX90380LGO-BAC-100-TU is fully factory-programmed and calibrated. The BAC-100 configuration-including Z/Y axis, 70 mT range, Ferrite magnet optimization, and ratiometric output scaling-is permanently stored in on-chip EEPROM during final test. No external programming via the connector or MCU is required for basic operation. Optional end-of-line calibration can further improve absolute accuracy but is not necessary for standard FOC or commutation use cases.
MLX90380LGO-BAC-100-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- Triaxis®
- Packaging:
- Tube
- 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:
- 16-TSSOP
MLX90380LGO-BAC-100-TU FAQ
1.How can I place an order for MLX90380LGO-BAC-100-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAC-100-TU 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-BAC-100-TU reliable?
The price and inventory of MLX90380LGO-BAC-100-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LGO-BAC-100-TU is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAC-100-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAC-100-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAC-100-TU?
MLX90380LGO-BAC-100-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAC-100-TU 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-BAC-100-TU?
For technical support, including MLX90380LGO-BAC-100-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAC-100-TU requirements.
6.How does Aetrix verify that MLX90380LGO-BAC-100-TU is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAC-100-TU 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-BAC-100-TU meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAC-100-TU?
All MLX90380LGO-BAC-100-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAC-100-TU, 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-BAC-100-TU part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAC-100-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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