IC-PVL Datasheet, PDF (15/33 Pages) IC-Haus GmbH – LINEAR/OFF-AXIS BATTERY-BUFFERED HALL MULTITURN ENCODER

iC-PVL LINEAR/OFF-AXIS
preliminary
BATTERY-BUFFERED HALL MULTITURN ENCODER
The I²C multimaster tries to read the configuration data
from an EEPROM connected to SCL and SDA. When
the data is read without errors, the iC-PVL operates in
SSI Mode or Chain Mode according to the configuration
bit INT_MODE and stays in this operating mode as long
as the battery supply is above V_off . After a third faulty
attempt, EEPROM read-out is stopped and an error is
indicated at pin NERR. Both serial interface modes are
further explained on Page 19. I²C communication is
possible in this operating mode, but position read-out
via SSI or I²C is exclusive (refer to I²C SLAVE MODE
on Page 23).
If SEL is shorted to input PRE, the device directly boots
into I²C slave mode without any activity on the I²C lines.
iC-PVL now responds to the I²C ID = 0b1100 001.
Rev B3, Page 15/33
Note: After installation of the battery, it is important
to put iC-PVL into a valid operating state to prevent
the battery from an excessive current drain. To do
so, a suitable magnetic target needs to be installed,
the main supply VDD powered, and a preset pulse
applied to input PRE.
Note: A magnetic field according to the specifications
should be provided any time (see Elec. Char. No.
102). If a suitable magnetic target can not be provided
during shipment or storage, use the sleep command
(refer to Table 30) or disconnect the battery.