IC-MU_17 Datasheet, PDF (2/66 Pages) IC-Haus GmbH – MAGNETIC OFF-AXIS POSITION ENCODER - POLE WIDTH 1.28MM

iC-MU MAGNETIC OFF-AXIS
POSITION ENCODER - POLE WIDTH 1.28MM
Rev D1, Page 2/66
DESCRIPTION
iC-MU is used for magnetic off-axis position definition
with integrated Hall sensors. By scanning two sep-
arate channels i.e. the master and nonius track the
device can log an absolute position within one me-
chanical revolution. The chip conditions the sensor
signals and compensates for typical signal errors.
The internal 12-bit sine/digital converters generate
two position words that supply high-precision position
data within one sine-period. The integrated nonius cal-
culation engine calculates the absolute position within
one mechanical revolution and synchronizes this with
the master track position word. Position data can be
transmitted serially, incrementally, or analog through
two ports in various modes of operation. Commuta-
tion signals for brushless DC (BLDC) motors with up
to 16 pole pairs are derived from the absolute position
and supplied through a 3-pin interface.
During startup the device loads a CRC-protected con-
figuration from an external EEPROM.
After the device has been reset an optional external
multiturn is read in an synchronized with the inter-
nal position data. During operation the position is
cyclically checked.
The device offered here is a multifunctional iC that contains in-
tegrated BiSS C interface components. The BiSS C process is
protected by patent DE 10310622 B4 owned by iC-Haus GmbH.
Users benefit from the open BiSS C protocol with a free license
which is necessary when using the BiSS C protocol in conjunction
with this iC.
Download the license at
www.biss-interface.com/bua