My Inquiry
My Account
Melexis Technologies NV MLX90380LDC-BAC-125-SP
- Part No.:
- MLX90380LDC-BAC-125-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90380LDC-BAC-125-SP.pdf
- Description:
- SENSOR RESOLVER ANLG GEN2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,528
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MLX90380LDC-BAC-125-SP 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/5 V dual-supply support, -40°C to 150°C operating range, and factory-programmed ferrite-magnet sensitivity (60 mT full-scale) for end-of-shaft or through-shaft motor rotor position feedback in BLDC and PMSM systems.
For engineers reviewing the MLX90380LDC-BAC-125-SP datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, SOIC-8 package mapping, magnetic axis configuration (X/Z), bandwidth selection (high BW), and real-world design implications for automotive-grade field-oriented control and industrial motor commissioning.
Technical Context
The MLX90380LDC-BAC-125-SP implements Triaxis® Hall technology to simultaneously sense orthogonal (X/Z) magnetic field components using on-die integrated Hall elements and signal conditioning circuitry. Its dual analog outputs deliver synchronized COS and SIN signals referenced to VDD, enabling high-fidelity arctangent-based angle computation in external MCUs.
This variant uses ferrite magnets (BAC prefix), operates at high bandwidth (suffix '125' = 3.3 V supply + high BW), and supports X/Z magnetic axis configuration-optimized for off-axis two-pole magnet placement in through-shaft applications where Z-axis flux dominates and X-axis sensitivity is matched per datasheet Figure 7.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Refresh Rate | 4 µs - enables real-time position tracking up to 25,000 rpm with <74 µs total tracking delay in high-bandwidth mode. |
| Full-Scale Magnetic Range | 60 mT - factory-programmed sensitivity (BAC-125) for ferrite magnets, yielding ±40%VDD output swing at TA = 25°C. |
| Operating Supply | 3.3 V only ('125' suffix = 3.3 V + high BW) - VDD3V3 active; VDD5V must be left floating per datasheet Section 9.1. |
| Temperature Range | -40°C to 150°C - qualified for under-hood automotive and industrial motor drive environments without derating. |
| Magnetic Axis | X/Z - OUT1 = COS(X), OUT2 = SIN(Z); supports through-shaft configurations with Z-axis dominant flux per Figure 7. |
| Output Type | Ratiometric sine/cosine analog - output voltage scales linearly with VDD, simplifying ADC reference alignment in MCU systems. |
| Linearity Error | ±0.5% - specified over 0.5–4.5 V output range at 5 V supply; ensures sub-degree angular error before dynamic compensation. |
Pinout & Package
MLX90380LDC-BAC-125-SP is housed in an RoHS-compliant SOIC-8 package (8-pin, 3.9 mm × 4.9 mm, 1.27 mm pitch), with exposed pad optional for thermal enhancement per Melexis Package Drawing 14.1–14.3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VSS | Supply Ground | Primary ground reference for analog and digital blocks; must be low-impedance connection to system GND. |
| 2 NC | Not Connected | No internal connection; recommended to tie to GND for EMC compliance per datasheet Section 9.1. |
| 3 TEST | Test Pin | Factory test access; tie to GND for optimal EMC performance in production systems. |
| 4 NC | Not Connected | No internal connection; recommended to tie to GND for EMC compliance. |
| 5 OUT2 | Analog Output SIN | Sine output for Z-axis field component; ratiometric to VDD3V3, 0–100%VDD swing, 25 Ω output impedance. |
| 6 VDD5V | 5 V Supply Input | Must remain floating when using 3.3 V operation ('125' variant); not powered in this configuration. |
| 7 VDD3V3 | 3.3 V Supply Input | Active supply rail; requires 100 nF decoupling capacitor per Figure 12; powers all internal circuitry. |
| 8 OUT1 | Analog Output COS | Cosine output for X-axis field component; ratiometric to VDD3V3, matches OUT2 timing and noise profile. |
Key Features
| Feature | Design Value |
|---|---|
| Selectable Magnetic Axis (X/Z) | Enables mechanical flexibility for through-shaft motor designs where Z-axis flux dominates and X-Z sensitivity matching is required per Figure 7. |
| Ferrite Magnet Optimization (BAC) | Factory-programmed sensitivity and temperature coefficient (TCS ≈ 2000 ppm/°C) tailored for cost-effective ferrite magnets across -40°C to 150°C. |
| High-Bandwidth Mode ('125') | Configures internal filter for 125 kHz Nyquist frequency and 4 µs update period - critical for fast-accelerating BLDC motors. |
| Ratiometric Analog Outputs | Eliminates need for separate precision voltage reference; SIN/COS outputs scale directly with VDD3V3, simplifying ADC interface design. |
| Programmable via Connector | Allows post-manufacture calibration and parameter tuning (e.g., offset, gain) using standard I²C-compatible programming interface. |
Applications
| Brushless DC Motor Rotor Position | Permanent Magnet Synchronous Motor Control |
|---|---|
|
Use Scenario: Real-time angular feedback for commutation in 3-phase BLDC drives used in electric power steering (EPS) and HVAC blowers. IC Role / Device Role / Timing Role: Resolver IC providing synchronized COS/X and SIN/Z analog outputs sampled by MCU ADC at ≥100 kSPS to compute rotor angle for six-step or FOC algorithms. Use Value: Enables <1° electrical angle error at 25,000 rpm with high-BW mode, supporting precise torque ripple suppression and efficient field weakening. |
Use Scenario: High-accuracy rotor position sensing in traction inverters and industrial servo drives requiring >14-bit equivalent resolution. IC Role / Device Role / Timing Role: Contactless angular sensor delivering ratiometric sine/cosine pairs to FPGA or DSP for real-time arctangent computation and dynamic compensation. Use Value: Delivers ±0.5% linearity and <1° total angular error after dynamic offset/gain correction - meeting ISO 26262 ASIL-B functional safety requirements. |
| End-of-Shaft Rotary Encoder Replacement | Through-Shaft Motor Assembly |
|
Use Scenario: Drop-in replacement for optical or magnetic incremental encoders in space-constrained pump and valve actuators. IC Role / Device Role / Timing Role: Absolute position sensor generating full 360° angle data per revolution without index pulse or homing sequence. Use Value: Eliminates mechanical wear and contamination sensitivity while maintaining ±0.5° accuracy over lifetime - reducing maintenance in sealed industrial housings. |
Use Scenario: Integration into hollow-shaft motors where magnet is mounted radially inside the shaft bore, exposing Z- and X-axis fields to the IC surface. IC Role / Device Role / Timing Role: X/Z-axis configured resolver detecting orthogonal field components from a two-pole ferrite magnet placed off-axis per Figure 7. Use Value: Supports compact mechanical layout with no external gears or couplings; enables direct shaft-angle measurement with <74 µs latency in high-BW mode. |
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-125-RE | NdFeB magnet optimization (TCS ≈ 1100 ppm/°C), same SOIC-8, X/Z axis, 3.3 V high-BW. | Better thermal stability with rare-earth magnets; requires tighter flux density control (30 mT full-scale vs. 60 mT). | Choose BAB-125 for higher-precision systems using NdFeB magnets and narrower air gaps. |
| MLX90380LGO-BAC-125-RE | TSSOP-16 dual-die redundant architecture, same ferrite sensitivity and X/Z axis, 3.3 V high-BW. | ASIL-D capable via hardware redundancy; larger footprint and higher current draw (up to 10 mA vs. 9 mA). | Choose LGO-BAC-125 for automotive safety-critical applications requiring fault-tolerant position sensing. |
Compared with MLX90380LDC-BAB-125-RE and MLX90380LGO-BAC-125-RE, the MLX90380LDC-BAC-125-SP offers optimized cost and size for ferrite-based through-shaft BLDC systems, trading redundancy and NdFeB thermal precision for simplified layout and lower BOM cost in ASIL-B or industrial contexts.
Availability
MLX90380LDC-BAC-125-SP is available at Aetrix Electronics and suitable for brushless motor control, permanent magnet synchronous motor (PMSM) drives, and industrial actuator position feedback requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MLX90380LDC-BAC-125-SP 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 sensor solutions for automotive and industrial markets, with leadership in magnetic sensing, infrared thermometry, and automotive ASICs.
The MLX90380 product line delivers Triaxis® resolver ICs designed specifically for high-reliability, contactless angular position sensing in demanding motor control applications - emphasizing robustness, programmability, and multi-magnet compatibility.
FAQ
What is the magnetic axis configuration of MLX90380LDC-BAC-125-SP?
The MLX90380LDC-BAC-125-SP is configured for X/Z magnetic axis operation, meaning OUT1 carries the cosine of the X-axis field component and OUT2 carries the sine of the Z-axis field component. This configuration is validated for through-shaft applications with two-pole ferrite magnets, as defined in option code 'BAC-125' and illustrated in Figure 7 of the datasheet. The IC maintains matched sensitivity between axes unless mismatched variants are selected.
Does MLX90380LDC-BAC-125-SP support both 3.3 V and 5 V supply voltages?
No - the '125' suffix in MLX90380LDC-BAC-125-SP explicitly denotes 3.3 V operation with high bandwidth. Only VDD3V3 (pin 7) must be powered; VDD5V (pin 6) must remain floating per datasheet Section 9.1 and Figure 12. Attempting to apply 5 V to VDD5V while operating at 3.3 V risks violating absolute maximum ratings and invalidating the high-BW timing specification.
What is the full-scale magnetic range programmed in MLX90380LDC-BAC-125-SP?
The MLX90380LDC-BAC-125-SP is factory-programmed for a 60 mT full-scale magnetic range (option code 'xx5' per Table 2), optimized for ferrite magnets. At TA = 25°C and VDD = 3.3 V, this yields a ±40%VDD output swing (i.e., 0.65 V to 2.65 V) with VOQ = 50%VDD, enabling maximal ADC utilization without external amplification.
Can MLX90380LDC-BAC-125-SP be used in ASIL-D automotive systems?
MLX90380LDC-BAC-125-SP itself is not ASIL-D certified due to its single-die SOIC-8 architecture. For ASIL-D applications, Melexis specifies the TSSOP-16 dual-die variant MLX90380LGO-BAC-125-RE, which provides hardware redundancy and diagnostic coverage. The MLX90380LDC-BAC-125-SP is qualified for ASIL-B and meets AEC-Q100 Grade 0 requirements for -40°C to 150°C operation.
How is the high-bandwidth mode enabled in MLX90380LDC-BAC-125-SP?
High-bandwidth mode is factory-programmed into MLX90380LDC-BAC-125-SP via the '125' option code (3.3 V + high BW). It configures the internal sample-and-hold filter for n = 1 in the equation Bandwidth = 1/(2πnTS), achieving 4 µs output update period and 125 kHz Nyquist frequency. No external configuration or register writes are needed - the behavior is fixed at manufacture.
MLX90380LDC-BAC-125-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 8-SOIC
MLX90380LDC-BAC-125-SP FAQ
1.How can I place an order for MLX90380LDC-BAC-125-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90380LDC-BAC-125-SP 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-BAC-125-SP reliable?
The price and inventory of MLX90380LDC-BAC-125-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90380LDC-BAC-125-SP is usually 5 days.
3.What payment methods are accepted for MLX90380LDC-BAC-125-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90380LDC-BAC-125-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90380LDC-BAC-125-SP?
MLX90380LDC-BAC-125-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90380LDC-BAC-125-SP 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-BAC-125-SP?
For technical support, including MLX90380LDC-BAC-125-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90380LDC-BAC-125-SP requirements.
6.How does Aetrix verify that MLX90380LDC-BAC-125-SP is sourced from the original manufacturer or authorized distributors?
All MLX90380LDC-BAC-125-SP 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-BAC-125-SP meets industry standards.
7.What is the process for return or replacement of MLX90380LDC-BAC-125-SP?
All MLX90380LDC-BAC-125-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90380LDC-BAC-125-SP, 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-BAC-125-SP part is unused and in its original packaging.
Return procedure for MLX90380LDC-BAC-125-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MLX90380LDC-BAC-125-SP Tags
-
TLV493DA1B6HTSA2
Infineon Technologies
-
EVW-AE4001B14
Panasonic Electronic Components
-
3382G-1-103G
Bourns Inc.
-
TLE5501E0001XUMA1
Infineon Technologies
-
HAL830UT-A
TDK-Micronas GmbH
-
TLE5009E1000FUMA1
Infineon Technologies
-
TLE5501E0002XUMA1
Infineon Technologies
-
HAL3725DJ-A
TDK-Micronas GmbH
-
HAL3727DJ-A
TDK-Micronas GmbH
-
HMC1501-TR
Honeywell Aerospace
-
HMC1512-TR
Honeywell Aerospace
-
AAS33001LLEATR-5
Allegro MicroSystems
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
