Magnetic Sensors - Linear, Compass (ICs)

Image Part Number Description / PDF Quantity Rfq
TLE4997A8DXUMA1

TLE4997A8DXUMA1

IR (Infineon Technologies)

SENSOR HALL EFFECT ANALOG TDSO-8

0

TLE4998P8XUMA1

TLE4998P8XUMA1

IR (Infineon Technologies)

SENSOR HALL OPEN DRAIN/PWM 8TDSO

0

TLE493DA2B6HTSA1

TLE493DA2B6HTSA1

IR (Infineon Technologies)

SENSOR HALL EFFECT I2C

1784

TLE4998P4HALA1

TLE4998P4HALA1

IR (Infineon Technologies)

TLE4998 - PROGRAMMABLE LINEAR HA

268

TLE4922XINFHALA1

TLE4922XINFHALA1

IR (Infineon Technologies)

SENSOR HALL ANALOG SSO4-1

414

TLE4997A8XUMA1

TLE4997A8XUMA1

IR (Infineon Technologies)

SENSOR HALL EFFECT ANALOG TDSO-8

237

TLE4998C3CHAMA1

TLE4998C3CHAMA1

IR (Infineon Technologies)

TLE4998 - PROGRAMMABLE LINEAR HA

7500

TLE4998C4HALA1

TLE4998C4HALA1

IR (Infineon Technologies)

SENSOR HALL PWM SSO3-10

0

TLE493DW2B6A3HTSA1

TLE493DW2B6A3HTSA1

IR (Infineon Technologies)

SENSOR HALL I2C TSOP-6-6-8

368

TLE4998S3XALA1

TLE4998S3XALA1

IR (Infineon Technologies)

SENSOR HALL EFFECT SENT SM8

228

TLE493DA1B6HTSA1

TLE493DA1B6HTSA1

IR (Infineon Technologies)

SENSOR HALL EFFECT MAGNETIC I2C

0

TLE4998P3XALA1

TLE4998P3XALA1

IR (Infineon Technologies)

SENSOR HALL PWM SSO3-10

4

TLE4997E2

TLE4997E2

IR (Infineon Technologies)

PROGRAMMABLE HALL EFFECT SENSOR

34303

TLE493DW2B6A2HTSA1

TLE493DW2B6A2HTSA1

IR (Infineon Technologies)

SENSOR HALL I2C TSOP-6-6-8

5

TLE4998C3XALA1

TLE4998C3XALA1

IR (Infineon Technologies)

SENSOR HALL PWM SSO3-10

1767

TLE4998S4HALA1

TLE4998S4HALA1

IR (Infineon Technologies)

SENSOR HALL EFFECT SENT SM8

0

TLE4998S3CHAMA1

TLE4998S3CHAMA1

IR (Infineon Technologies)

SENSOR HALL EFFECT SENT SM8

0

TLE4997E2XALA1

TLE4997E2XALA1

IR (Infineon Technologies)

SENSOR HALL EFFECT ANALOG SSO3

159

TLE493DW2B6A0HTSA1

TLE493DW2B6A0HTSA1

IR (Infineon Technologies)

SENSOR HALL I2C TSOP-6-6-8

16874

TLE4929CXAFM28HAMA1

TLE4929CXAFM28HAMA1

IR (Infineon Technologies)

SENSOR HALL EFFECT ANALOG SO-3

1285

Magnetic Sensors - Linear, Compass (ICs)

1. Overview

Magnetic sensors - linear compass ICs are semiconductor devices that detect magnetic fields and convert them into electrical signals. These integrated circuits provide precise measurement of magnetic field direction and strength in linear axes, enabling 2D/3D orientation detection. Their importance spans multiple industries due to their ability to provide contactless position sensing, navigation capabilities, and magnetic field monitoring in compact form factors.

2. Main Types & Functional Classification

Type Functional Features Application Examples
Hall Effect Sensors Voltage output proportional to magnetic field strength, simple design Current sensing, proximity detection
Anisotropic Magnetoresistance (AMR) Sensors High sensitivity (0.1 accuracy), low power consumption Electronic compasses, navigation systems
Giant Magnetoresistance (GMR) Sensors Ultra-high sensitivity (nanotesla range), wide bandwidth Biomedical devices, industrial position control
Tunneling Magnetoresistance (TMR) Sensors Lowest power consumption, excellent thermal stability IoT devices, automotive safety systems

3. Structure & Composition

Typical construction includes: - Sensing element (Hall plate/AMR film/TMR junction) - Signal conditioning circuitry (amplifiers, ADCs) - Temperature compensation modules - Digital interface (I2C/SPI) Packaged in LGA/QFN formats (2-8mm sizes) with magnetic shielding layers. Advanced versions integrate sensor fusion algorithms for 3-axis measurement.

4. Key Technical Specifications

Parameter Description & Importance
Sensitivity (mV/Gauss) Determines minimum detectable field strength
Resolution ( T/LSB) Affects angle measurement precision (critical for navigation)
Operating Temperature (-40 to +125 C) Defines environmental suitability
Power Consumption ( A/mA) Crucial for battery-powered devices
Interface Type I2C/SPI for digital output, analog for raw signals

5. Application Fields

Main industries include: - Consumer Electronics: Smartphone compasses, AR/VR headsets - Automotive: EPS systems, vehicle detection - Industrial: Robotics, CNC machine tool positioning - Aerospace: Drone stabilization systems - Medical: Surgical tool tracking

6. Leading Manufacturers & Products

Manufacturer Product Series Key Specifications
STMicroelectronics LIS3MDL 50 Gauss range, 0.08 T/LSB, I2C/SPI
Honeywell HMC5883L 80 Hz bandwidth, 2-4 Gauss accuracy
NXP Semiconductors MFX7755 3D sensing, 0.1 heading accuracy
TDK-InvenSense ICM-20948 9-axis MEMS+mag, 0.15 mA operating current

7. Selection Guidelines

Key consideration factors: - Required measurement axis (2D vs 3D) - Environmental conditions (temperature, vibration) - Power budget constraints - Required accuracy vs cost trade-offs - Interface compatibility with host system - Calibration requirements (hard/soft iron compensation)

8. Industry Trends

Current development directions: - Integration with MEMS IMUs for sensor fusion - AI-based self-calibration algorithms - Sub-10 A ultra-low power consumption - Increased radiation hardness for space applications - Development of 4D magnetic field-time sensors

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