Data Sheet

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Copyright LZE GmbH 2021
FH3D02 Overview
Eine gemeinsame Initiative von
Content
1 FH3D02 Overview ............................................................................................................ 4
1.1 General Description .......................................................................................................... 4
1.2 Features ........................................................................................................................... 4
1.3 Applications ...................................................................................................................... 5
1.4 Functional Block Diagram ................................................................................................ 5
2 Characteristics .................................................................................................................. 6
2.1 Absolute Maximum Ratings .............................................................................................. 6
2.2 Operating Conditions ........................................................................................................ 6
2.3 Magnetic Specifications .................................................................................................... 7
2.4 Current Consumption ....................................................................................................... 7
3 Package and Circuit Connection ...................................................................................... 8
3.1 Footprint and Dimensions ................................................................................................ 8
3.2 Pins .................................................................................................................................. 9
3.3 Electrical Connection ........................................................................................................ 10
4 SPI Communication .......................................................................................................... 11
4.1 Protocol and Timing ......................................................................................................... 11
4.2 Read/Write Access ........................................................................................................... 12
4.2.1 Read ................................................................................................................................. 12
4.2.2 Write ................................................................................................................................. 12
4.2.3 CRC Calculation ............................................................................................................... 13
5 List of Registers ................................................................................................................ 14
5.1 Measurement Register Contents ...................................................................................... 15
5.1.1 0x000B (read/write) – Measurement Control ................................................................... 15
5.1.2 0x000E (read/write) – Measurement Start ....................................................................... 16
5.1.3 0x0107 (read only) – Status Register ............................................................................... 17
5.1.4 0x0110 (read only) – Temperature Sensor ...................................................................... 18
5.1.5 0x0111 (read only) – Bi
0
Magnetic Field .......................................................................... 18
5.1.6 0x0112 (read only) – Bi
1
Magnetic Field .......................................................................... 18
5.1.7 0x0113 (read only) – Bj
0
Magnetic Field .......................................................................... 19
5.1.8 0x0114 (read only) – Bj
1
Magnetic Field .......................................................................... 19
5.1.9 0x0120 (read only) – Magnetic Field Magnitude .............................................................. 19
5.1.10 0x0121 (read only) – Magnetic Field Angle ...................................................................... 20
5.1.11 0x0122 (read only) – Linearized Angle / Bz
1
Field (Special Function Mode) ................... 20
5.1.12 0x0124 (read only) – Bz
0
Magnetic Field (Special Function Mode) ................................. 20
5.2 Result Register Overview ................................................................................................. 21
6 Measurement Modes ........................................................................................................ 22
6.1 Single Magnetic Probe ..................................................................................................... 22
6.1.1 Application Example ......................................................................................................... 22
6.1.2 Settings ............................................................................................................................ 22
6.1.3 Output Registers .............................................................................................................. 22
6.1.4 References ....................................................................................................................... 22
6.2 Dual Magnetic Probe ........................................................................................................ 23
6.2.1 Application Example ......................................................................................................... 23
6.2.2 Settings ............................................................................................................................ 23
6.2.3 Output Registers .............................................................................................................. 23
6.2.4 References ....................................................................................................................... 23
6.3 Linear Position or Off-Axis Angle Sensor (Absolute Field Values, Magnet On-Top) ........ 24