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 Fe
atures
7
Additional Features
7.1 Low Power Mode
For low power applications the FH3D02 can be set to a low power mode. In this mode all analog
components are turned off and the oscillator and digital components are stopped. The low power mode is
enabled by logical levels at pin LOPOWR. A logical rise signal will immediately enable the low power
mode. Any measurement will be interrupted and the SPI will not return any data. After a logical fall signal
at LOPOWR a reset cycle will be performed and the IC will enter its initial condition. All necessary SPI
register settings must be rewritten as they return to their initial states during the reset.
Please note:
The reset cycle at leaving the low power mode requires the regular reset wait time t
res1
before
starting the SPI communication (see chapter 5.1.2).
LOPOW
R level
State
Current consumption
Note
high
Low power
mode
IDD
lowpower
All internal components are switched
off.
low
Normal
operation
[depending on
operation mode]
The SPI register content is reset when
returning to normal operation.
Low power mode
information