AS5043

Data Sheet – Choosing the Proper Magnet

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Revision 1.80

21 – 36

15.1.1 Magnet Placement

with reference to the edge of pin #1 (see Figure 19). This radius includes the placement tolerance of the chip within the

SSOP-16 package (+/- 0.235mm).

The vertical distance should be chosen such that the magnetic field on the die surface is within the specified limits (see

Figure 18). The typical distance “z” between the magnet and the package surface is 0.5mm to 1.8mm with the

recommended magnet (6mm x 3mm). Larger gaps are possible, as long as the required magnetic field strength stays

within the defined limits.

A magnetic field outside the specified range may still produce usable results, but the out-of-range condition will be

indicated by MagRngn (pin 1), which will be pulled low. At this condition, the angular data is still available over the digital

serial interface (SSI), but the analog output will be turned off.

Figure 20: Vertical Placement of the Magnet

1.282mm ± 0.15mm

0.576mm ± 0.1mm

z

S

N

Package surface

Die surface