IC-MHL200 Datasheet, PDF (17/33 Pages) IC-Haus GmbH – 12-BIT LINEAR / ROTARY POSITION HALL ENCODER

iC-MHL200
12-BIT LINEAR / ROTARY POSITION HALL ENCODER
Rev C1, Page 17/33
PRM
Value
0x0
0x1
Addr. 0x03; bit 7
Function
Energy-saving mode deactivated
Energy-saving mode activated
In the test mode (TEST = 0x43) the internal bias cur-
rent IBM can be measured on pin B vs pin VNA and
changed via register CIBM to achieve a nominal value
of 200 µA.
Table 11: Energy-saving mode
In the energy-saving mode the current consumption of
the Hall sensors can be quartered. This also reduces
the maximum rotating frequency by a factor of 4.
CIBM(3:0)
Value
0x0
...
0x8
0x9
...
0xF
Addr. 0x04; bit 3:0
Function
-40 %
...
0%
+5 %
...
+35 %
Table 12: Calibration of bias current
Note: CIBM is pre-programmed to the zapping ROM
by iC-Haus and needs no further adjustment.
HCLH
Value
0x0
0x1
Addr. 0x04; bit 7
Frequency
250 kHz
500 kHz
Table 13: Activation of high Hall clock pulse
The switching-current hall sensors can be operated at
two frequencies. At 500 kHz the sine has twice the num-
ber of support points. This setting is of interest at high
magnetic input frequencies beyond 500 Hz (equivalent
to 2 m/s comparable to Item 102).