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Melexis Technologies NV MLX90380LGO-BAB-003-RE
- Part No.:
- MLX90380LGO-BAB-003-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MLX90380LGO-BAB-003-RE.pdf
- Description:
- SENSOR RESOLVER ANLG 2CH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,134
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Product details
Overview
MLX90380LGO-BAB-003-RE from Melexis is a dual-die, fully redundant Triaxis® resolver IC delivering true 360° sine/cosine analog outputs for absolute rotary position sensing. It operates from 3.3 V or 5 V, supports X/Z magnetic axis configuration with sensitivity mismatch, and delivers 4 µs output refresh rate across -40°C to 150°C - enabling high-accuracy motor angle feedback in brushless PMSM and BLDC drives.
For engineers reviewing the MLX90380LGO-BAB-003-RE datasheet, pinout, applications, or equivalent options, this TSSOP-16 packaged device provides ratiometric, programmable magnetic sensitivity (30 mT full-scale range), end-of-shaft/through-shaft compatibility, and dual-die redundancy for ASIL-D–capable systems.
Technical Context
The MLX90380LGO-BAB-003-RE implements Triaxis® Hall technology with orthogonal and parallel magnetic field sensing, using two independent monolithic dies in one TSSOP-16 package for functional safety compliance. Its dual analog outputs (OUT1_A/OUT1_B as COS, OUT2_A/OUT2_B as SIN) are independently conditioned and synchronized to deliver redundant angular signals.
This variant is factory-programmed for X/Z magnetic axis operation with sensitivity mismatch (Bz = 2 × Bx), 30 mT full-scale range, and high-bandwidth mode (4 µs update period). It supports 3.3 V supply only per option code BAB-003, and includes on-chip EEPROM programming via VDD pins for sensitivity, bandwidth, and axis selection without external hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Dual ratiometric analog sine/cosine outputs (COS/SIN), each with dedicated die |
| Update Rate | 4 µs per field component (8 µs total for full COS+SIN pair), enabling >25 kRPM angular tracking |
| Magnetic Range | 30 mT full-scale (programmed via BAB-003 option code), optimized for NdFeB magnets |
| Supply Voltage | 3.3 V only (VDD3V3_A/VDD3V3_B active; VDD5V pins must be left floating) |
| Operating Temp | -40°C to +150°C ambient, supporting under-hood automotive and industrial motor control |
| Accuracy | ±1° total angular error with dynamic compensation; ±10° uncorrected at 25°C |
| Redundancy | Fully independent dual-die architecture (Die A & Die B), each with separate ground, supply, and outputs |
Pinout & Package
TSSOP-16 package with exposed thermal pad (Moisture Sensitivity Level 3); dual-die layout enables independent signal paths for functional safety compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 9 | VSS_A / VSS_B | Separate ground returns for Die A and Die B - mandatory isolation for redundancy integrity |
| 5, 13 | OUT2_B / OUT2_A | SIN analog outputs (Die B and Die A), ratiometric to respective VDD3V3 supply |
| 8, 16 | OUT1_B / OUT1_A | COS analog outputs (Die B and Die A), matched gain/offset to corresponding SIN channels |
| 7, 15 | VDD3V3_B / VDD3V3_A | Dedicated 3.3 V supplies for each die; VDD5V pins (6, 14) must remain unconnected |
| 4, 11 | TEST_A / TEST_B | Factory test access; connect to GND for optimal EMC per datasheet recommendation |
| 2, 3, 10, 12 | NC | No-connect pins; tie to GND to reduce EMI and improve noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® Hall Sensing | Simultaneous orthogonal (Z) and in-plane (X) field detection enables X/Z axis operation without mechanical reorientation |
| Programmable Magnetic Axis | X/Z configuration with intentional sensitivity mismatch (Bz = 2×Bx) supports through-shaft multi-pole magnet layouts |
| Dual-Die Redundancy | Fully independent signal chains (power, ground, outputs) meet ISO 26262 ASIL-D requirements for torque-sensing motors |
| Ratiometric Outputs | Output voltage scales directly with VDD (±2.5% ratiometry), eliminating need for precision reference in MCU ADC interface |
| On-Chip EEPROM Programming | Sensitivity, bandwidth, and axis selection configured at system level via VDD ramp - no external programmer required |
| High-Temp Operation | Guaranteed functionality up to 150°C junction temperature supports placement near motor windings or inverters |
Applications
| Electric Power Steering (EPS) | Automotive Traction Inverter |
|---|---|
Use Scenario: Real-time rotor position feedback for field-oriented control of 3-phase PMSM in column-assist EPS modules. IC Role / Device Role / Timing Role: Dual-die resolver providing redundant COS/SIN pairs to separate safety cores of ASIL-D MCU. Use Value: Enables <1° electrical angle error at 10,000 RPM while meeting ISO 26262 diagnostic coverage targets via independent die comparison. |
Use Scenario: High-reliability angular sensing for IGBT gate timing in 800 V EV traction inverters operating at 150°C case temperature. IC Role / Device Role / Timing Role: Contactless position sensor interfacing to isolated sigma-delta ADCs with 4 µs update synchronizing PWM carrier edges. Use Value: Eliminates slip-ring wear and enables direct mounting on motor shaft with 30 mT range optimized for NdFeB rotor magnets. |
| Industrial Servo Drives | Robot Joint Actuators |
Use Scenario: Closed-loop commutation of high-dynamic PMSM in CNC spindles requiring <0.5° position linearity over 0–6000 RPM. IC Role / Device Role / Timing Role: Primary resolver delivering ratiometric analog outputs to FPGA-based motion controller with real-time arctan computation. Use Value: 4 µs update rate supports 16-bit angle resolution at 25 kRPM; X/Z axis mode accommodates compact through-shaft mechanical integration. |
Use Scenario: Torque-angle feedback in collaborative robot joint modules where space constraints mandate end-of-shaft magnet placement. IC Role / Device Role / Timing Role: Absolute position sensor with dual-die outputs feeding safety PLC and motion controller for dual-channel validation. Use Value: -40°C to 150°C rating allows operation inside sealed gearmotor housings; programmable 30 mT range matches small-diameter NdFeB magnets. |
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-003-RE | SOIC-8 single-die variant; identical magnetic specs and programming but no redundancy | Lacks dual-die fault tolerance; suitable for ASIL-B or non-safety-critical BLDC fans/pumps | Select when cost and board space constrain redundancy requirements, and functional safety is not mandated. |
| AMS AS5055A-BQFT | Single-die 12-bit SPI encoder IC; digital output, no analog sine/cosine; max 125°C ambient | Requires external ADC interface; limited to lower-temp industrial environments; no magnetic axis flexibility | Choose for digital bus integration and lower system BOM cost where analog resolver interface is unnecessary. |
Compared with MLX90380LDC-BAB-003-RE, the MLX90380LGO-BAB-003-RE adds die-level redundancy and TSSOP-16 routing margin at higher cost and footprint; versus AMS AS5055A-BQFT, it retains analog resolver compatibility, extends temperature range by 25°C, and supports configurable magnetic axes - critical for mechanical layout flexibility in motor design.
Availability
MLX90380LGO-BAB-003-RE is available at Aetrix Electronics and suitable for electric power steering, traction inverters, industrial servo drives, and robotic joint actuators requiring stable component supply across automotive and industrial production lifecycles.
Supply support for MLX90380LGO-BAB-003-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 leadership in magnetic position sensing and contactless current measurement.
The MLX90380 product line delivers Triaxis® resolver functionality in monolithic IC form, designed specifically for high-reliability, high-temperature motor control systems requiring true 360° absolute angle feedback without optical or inductive resolvers.
FAQ
What magnetic axis configuration is implemented in MLX90380LGO-BAB-003-RE?
The MLX90380LGO-BAB-003-RE is factory-programmed for X/Z magnetic axis operation with sensitivity mismatch (Bz = 2 × Bx), as indicated by the 'BAB' option code and '003' suffix. This configuration supports through-shaft multi-pole magnet arrangements where Z-axis flux dominates, and is validated per datasheet section 8.2 and Table 2. The mismatch enables accurate angle calculation without external gain adjustment in specific mechanical layouts.
Does MLX90380LGO-BAB-003-RE support both 3.3 V and 5 V supply simultaneously?
No - MLX90380LGO-BAB-003-RE is configured for 3.3 V operation only, as specified by the '003' digit in its option code (per Table 2: '0xx' = 3.3 V low BW, but '003' maps to high BW per footnote 9 and Section 11). VDD5V_A and VDD5V_B pins (6 and 14) must remain unconnected and floating; only VDD3V3_A (pin 7) and VDD3V3_B (pin 15) are powered.
How is redundancy implemented in MLX90380LGO-BAB-003-RE?
MLX90380LGO-BAB-003-RE integrates two physically independent monolithic dies in one TSSOP-16 package, each with dedicated power (VDD3V3_A/B), ground (VSS_A/B), test (TEST_A/B), and analog outputs (OUT1_A/B, OUT2_A/B). No shared circuitry exists between dies - enabling cross-die comparison for fault detection per ISO 26262 ASIL-D requirements.
What is the full-scale magnetic range of MLX90380LGO-BAB-003-RE?
The MLX90380LGO-BAB-003-RE has a factory-programmed full-scale magnetic range of 30 mT, confirmed by the '003' suffix in its option code (Table 2: 'xx3' = 30 mT magnetic range). This range applies to the X-axis component in X/Z mode and is optimized for NdFeB magnets, delivering ±40% VDD output swing at TA = 25°C per datasheet Section 6.
Can MLX90380LGO-BAB-003-RE be reprogrammed after soldering?
Yes - MLX90380LGO-BAB-003-RE supports in-system programming via controlled VDD ramp sequences on its supply pins, as described in the User_Interface_description_MLX90380_PSF_sample.xls.pdf referenced in Section 12. This allows field updates of sensitivity, bandwidth, and magnetic axis without removing the device, using only standard power supply control and no external programming hardware.
MLX90380LGO-BAB-003-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:
- 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:
- 16-TSSOP
MLX90380LGO-BAB-003-RE FAQ
1.How can I place an order for MLX90380LGO-BAB-003-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LGO-BAB-003-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-003-RE reliable?
The price and inventory of MLX90380LGO-BAB-003-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-003-RE is usually 5 days.
3.What payment methods are accepted for MLX90380LGO-BAB-003-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LGO-BAB-003-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LGO-BAB-003-RE?
MLX90380LGO-BAB-003-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LGO-BAB-003-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-003-RE?
For technical support, including MLX90380LGO-BAB-003-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LGO-BAB-003-RE requirements.
6.How does Aetrix verify that MLX90380LGO-BAB-003-RE is sourced from the original manufacturer or authorized distributors?
All MLX90380LGO-BAB-003-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-003-RE meets industry standards.
7.What is the process for return or replacement of MLX90380LGO-BAB-003-RE?
All MLX90380LGO-BAB-003-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LGO-BAB-003-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-003-RE part is unused and in its original packaging.
Return procedure for MLX90380LGO-BAB-003-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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