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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Additional Features
7.9
Magnet Lost Setting
At every measurement the magnetic field magnitude is compared to an adjustable value and the flag
MagLost in register 0x0107 is set if the magnitude falls below this value.
In order to avoid a toggling flag on the edge of this limit a hysteresis can be set.
Bit
Symbol
Description
D15
– D11
r
(Reserved. Always 0)
D1
0
–
D8
Hyst
“Hysteresis”
Hysteresis around the Magnet Lost Limit. It is calculated by
Hyst
MgnLostLmt
2
1
16 ⋅⋅
Factory setting is 1, which corresponds to approx. 0.43 mT.
D
7
–
D0
MgnLostLmt
“Magnet Lost Limit”
If the bits <13:6> of the Magnetic Field Magnitude (register
0x0120) is lower than
MgnLostLmt the error flag MagLost in
register 0x0107 is set.
Factory setting is 3, which corresponds to approx. 0.93 mT.