AS5045-ASSU austriamicrosystems, AS5045-ASSU Datasheet - Page 24

• Manufacturer Part Number: AS5045-ASSU
• Description: IC ENCODER PROG 12-BIT 16-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5045-ASSU

• Sensing Range: 45mT ~ 75mT
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Current - Supply: 21mA
• Current - Output (max): 4mA
• Output Type: Digital, PWM, 12-Bit Serial
• Features: Programmable
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AS5045
Data Sheet
14.1 Physical Placement of the Magnet
The best linearity can be achieved by placing the center of the magnet exactly over the defined center of the chip as
shown in the drawing below:
Figure 18. Defined Chip Center and Magnet Displacement Radius
Magnet Placement
The magnet’s center axis should be aligned within a displacement radius R
the IC.
The magnet may be placed below or above the device. The distance should be chosen such that the magnetic field
on the die surface is within the specified limits (see Figure 17). The typical distance “z” between the magnet and the
package surface is 0.5mm to 1.5mm, provided the use of the recommended magnet material and dimensions (6mm x
3mm). Larger distances are possible, as long as the required magnetic field strength stays within the defined limits.
However, a magnetic field outside the specified range may still produce usable results, but the out-of-range condition
will be indicated by MagINCn (pin 1) and MagDECn (pin 2), see Table 1.
Figure 19. Vertical Placement of the Magnet
www.austriamicrosystems.com
Die surface
2.433 mm
2.433 mm
N
1
Package surface
Area of recommended maximum
magnet misalignment
S
3.9 mm
Revision 1.7
R
d
z
1.282mm ± 0.15mm
0.576mm ± 0.1mm
Defined
center
3.9 mm
d
of 0.25mm from the defined center of
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