Data Sheet
Table Of Contents
- 1 FH3D02 Overview
- 2 Characteristics
- 3 Package and Circuit Connection
- 4 SPI Communication
- 5 List of Registers
- 5.1 Measurement Register Contents
- 5.1.1 0x000B (read/write) – Measurement Control
- 5.1.2 0x000E (read/write) – Measurement Start
- 5.1.3 0x0107 (read only) – Status Register
- 5.1.4 0x0110 (read only) – Temperature Sensor
- 5.1.5 0x0111 (read only) – Bi0 Magnetic Field
- 5.1.6 0x0112 (read only) – Bi1 Magnetic Field
- 5.1.7 0x0113 (read only) – Bj0 Magnetic Field
- 5.1.8 0x0114 (read only) – Bj1 Magnetic Field
- 5.1.9 0x0120 (read only) – Magnetic Field Magnitude
- 5.1.10 0x0121 (read only) – Magnetic Field Angle
- 5.1.11 0x0122 (read only) – Linearized Angle / Bz1 Field (Special Function Mode)
- 5.1.12 0x0124 (read only) – Bz0 Magnetic Field (Special Function Mode)
- 5.2 Result Register Overview
- 5.1 Measurement Register Contents
- 6 Measurement Modes
- 6.1 Single Magnetic Probe
- 6.2 Dual Magnetic Probe
- 6.3 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet On-Top)
- 6.4 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet On-Top)
- 6.5 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet At-The-Side)
- 6.6 Linear Position or Off-Axis Angle Sensor (Gradient Field Values, Magnet At-The-Side)
- 7 Additional Features
- 8 LZE GmbH
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FH3D02 Overview
1
FH3D02 Overview
1.1
General Description
The FH3D02 is a dual 3D magnetic field sensor using two 3D Hall sensors using the HallinOne
®
technology, which are also called “pixels”. The versatile magnetic field sensor is suited for measuring all
magnetic field components in three dimensions. It can be used as a magnetic field probe or a position
sensor for linear or rotary movement of permanent magnets. A variety of applications can be evaluated
instantly with the standard programming. With specific programming even more applications can be
addressed.
Example applications of the FH3D02
1.2
Features
− Integrated hall sensor for 3D magnetic vector measurement with high linearity
− Usage of HallinOne
®
technology
o https://www.iis.fraunhofer.de/hallinone
− Two 3D sensors allow for differential measurements to suppress external magnetic fields
− Ready-to-use adjustment for X/Y applications
− Fully corrected offsets
− CORDIC for angle calculation of two magnetic field components
− Four different measurement modes for sequential measurements of different magnetic field
components.
− Integrated temperature sensor
− Measurement rate up to 1 kHz
− PWM output of measurement values
− Internal EEPROM for calibration data and configuration
− Linearization of angle with interpolated look-up- table
− No ferromagnetic components used (no hysteresis, no saturation)
− Low noise, high resolution
− High magnetic and geometric precision
− External field independence following automotive standards
− SPI interface (up 16 Mhz)
− Synchronous parallel operation of up to 4096 devices on the same SPI
− Prepared for self-test and self-monitoring
− Wide operating temperature range from -40°C to 105°C
− Small package and footprint
FH3D02
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FH3D02
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