AS5134 PB austriamicrosystems, AS5134 PB Datasheet - Page 28

• Manufacturer Part Number: AS5134 PB
• Description: BOARD PROGRAM AS5134
• Manufacturer: austriamicrosystems

Specifications of AS5134 PB

• Module/board Type: ZIF Socket
• For Use With/related Products: AS5000 Programmer, AS5134
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption

AS5134
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
Reducing Power Supply Peak Currents.
when the AS5134 is toggled between active and reduced power mode. R1 must be chosen such that it can maintain a VDD voltage of 4.5 – 5.5V
under all conditions, especially during long active periods when the charge on C1 has expired. C1 should be chosen such that it can support
peak currents during the active operation period. For long active periods, C1 should be large and R1 should be small.
8.5 Magnet Diameter and Vertical Distance
Note: Following is just an abstract taken from the elaborate application note on the Magnet.
8.5.1 The Linear Range
The Hall elements used in the AS5000-series sensor ICs are sensitive to the magnetic field component Bz, which is the magnetic field vertical to
the chip surface.
at an axial distance of 1mm between magnet and IC.
The highest magnetic field occurs at the north and south poles, which are located close to the edge of the magnet, at ~2.8mm radius
20). Following the poles towards the center of the magnet, the Bz field decreases very linearly within a radius of ~1.6mm. This linear range is the
operating range of the magnet with respect to the Hall sensor array on the chip. For best performance, the Hall elements should always be within
this linear range.
Figure 19. 3D-Graph of Vertical Magnetic Field of a 6mm Cylindrical Magnet
www.austriamicrosystems.com/AS5134
For more detailed information, please visit our homepage
Application Notes
Bz [mT]
Figure 19
shows a 3-dimensional graph of the Bz field across the surface of a 6mm diameter, cylindrical NdFeB N35H magnet
X -displacement [mm]
An optional RC-filter (R1/C1) may be added to avoid peak currents in the power supply line
BZ; 6mm magnet @ Z=1mm
www.austriamicrosystems.com → Magnetic Rotary Encoders
Revision 1.13
area of X- Y-misalignment from
center: ±0.5mm
circle of Hall elements on
chip
Y -displacement [mm]
→ Magnet
(see Figure
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