AS5043ASST View Datasheet(PDF) - austriamicrosystems AG
Part Name
Description
Manufacturer
AS5043ASST
austriamicrosystems AG
AS5043ASST Datasheet PDF : 37 Pages
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AS5043
Data Sheet – 10-bit Absolute Synchronous Serial Interface (SSI)
8.2 Z-Axis Range Indication (Push Button Feature, Red/Yellow/Green Indicator)
The AS5043 provides several options of detecting movement and distance of the magnet in the vertical (Z-) direction.
Signal indicators MagINC, MagDEC and LIN are available as status bits in the serial data stream, while MagRngn is an
open-drain output that indicates an out-of range status (on in YELLOW or RED range). Additionally, the analog output
provides a safety feature in the form that it will be turned off when the magnetic field is too strong or too weak (RED
range). The serial data is always available, the red/yellow/green status is indicated by the status bits as shown below:
Table 3: Magnetic Field Strength Indicators
SSI Status Bits Hardware Pins
Mag Mag LIN Mag Analog
INC DEC
Rngn Output
Description
lid No distance change
0
0
0 Off enabled Magnetic Input Field OK (GREEN range, ~45…75mT)
a 0
1
0
Off
enabled
Distance increase, GREEN range; Pull-function. This state is dynamic and only
active while the magnet is moving away from the chip.
v 1
0
0
Off
enabled
Distance decrease, GREEN range; Push- function. This state is dynamic and only
active while the magnet is moving towards the chip.
ill YELLOW Range: Magnetic field is ~ 25…45mT or ~75…135mT. The AS5043 may
1
1
0
On
enabled still be operated in this range, but with slightly reduced accuracy.
t RED Range: Magnetic field is ~<25mT or >~135mT. The analog output will be
G turned off in this range by default. It can be enabled permanently by OTP
s 1
1
1 On disabled programming (see 11.1.2).
It is still possible to use the absolute serial interface in the red range, but not
Technicaaml scoAntent recommended.
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Revision 1.80
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