Magnetic Sensors - Linear, Compass (ICs)

Image Part Number Description / PDF Quantity Rfq
TLE4943CAAMA1

TLE4943CAAMA1

IR (Infineon Technologies)

SPEED SENSORS

0

TLE5046ICPWMR100HALA1

TLE5046ICPWMR100HALA1

IR (Infineon Technologies)

IC HALL SENSOR LINEAR SSO-2

0

TLI4920

TLI4920

IR (Infineon Technologies)

LOW POWER 3D HALL SENSOR

4000

TLE4983CWSF45NHAMA1

TLE4983CWSF45NHAMA1

IR (Infineon Technologies)

TLE4983C - PROGRAMMABLE MONO-CEL

87000

TLE4984CXAAF47XAMA1

TLE4984CXAAF47XAMA1

IR (Infineon Technologies)

TLE4984C - PROGRAMMABLE MONO-CEL

69000

TLE4990HAXA1

TLE4990HAXA1

IR (Infineon Technologies)

SENSOR HALL ANALOG SSO3-10

0

TLE4990E6782HAXA1

TLE4990E6782HAXA1

IR (Infineon Technologies)

SENSOR HALL ANALOG SSO4-1

0

TLE4998C8XUMA1

TLE4998C8XUMA1

IR (Infineon Technologies)

SENSOR HALL OPEN DRAIN/PWM TDSO8

0

TLE4998P3CE1200HAMA1

TLE4998P3CE1200HAMA1

IR (Infineon Technologies)

SENSOR HALL PWM SSO3-10

0

TLE5027CE6747HAMA3

TLE5027CE6747HAMA3

IR (Infineon Technologies)

SENSOR MAGNETORESISTIVE PWM 3SIP

0

TLE4983CHTE6747HAMA2

TLE4983CHTE6747HAMA2

IR (Infineon Technologies)

IC SPEED SENSOR MAGN PG-SSO-3

0

TLE5027CE6747HAMA4

TLE5027CE6747HAMA4

IR (Infineon Technologies)

SENSOR MAGNETORESISTIVE PWM 3SIP

0

TLE4955E4HALA1

TLE4955E4HALA1

IR (Infineon Technologies)

IC SPEED SENSOR MAGN PG-SSO-2

0

TLE4984CHTE6747HAMA2

TLE4984CHTE6747HAMA2

IR (Infineon Technologies)

IC SPEED SENSOR MAGN PG-SSO-3

0

TLE5027CXAAD47HAMA1

TLE5027CXAAD47HAMA1

IR (Infineon Technologies)

SENSOR MAGNETORESISTIVE PWM 3SIP

0

TLE4955CE4807BAMA1

TLE4955CE4807BAMA1

IR (Infineon Technologies)

IC SPEED SENSOR MAGN PG-SSO-2

0

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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