iC-MH8
12 BIT ANGULAR HALL ENCODER
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Rev A0.9, Page 1/25
APPLICATIONS
o
Digital angular sensor
technology, 0–360°
o
Incremental angular encoder
o
Absolute angular encoder
o
Brushless motors
o
Motor feedback
o
Rotational speed control
FEATURES
o
o
o
o
o
o
o
o
o
o
o
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Real-time system for rotation speed up to 120,000 rpm
Integrated Hall sensors with automatic offset compensation
4x sensor arrangement for fault-tolerant adjustment
Amplitude control for optimum operating point
Interpolator with 4096 angular increments/resolution better
than 0.1°
Programmable resolution, hysteresis, edge spacing, zero
position and rotating direction
Incremental output of sensor position up to 8 MHz edge rate
RS422-compatible AB encoder signals with index Z
UVW commutation signals for eight pole EC motor applications
Serial interface for data output and configuration
SSI-compatible output mode
Integrated ZAP diodes for module setup and OEM data,
programmable via serial interface
Signal error (e.g. magnet loss) can also be read out via serial
interface
Analogue sine and cosine differential signals
Extended temperature range from -40 to +125 °C
PACKAGES
QFN28 5 x 5 mm²
BLOCK DIAGRAM
Sine / cosine outputs
+ 5V
VPA
PCOUT NCOUT
PSOUT NSOUT
+ 5V
VPD
A
B
Binary interpolation factors
1, 2, 4, ... 256, 512, 1024
A
B
Z
B
S
N
Test
PTE
B
B
B
CONVERSION
LOGIC
Z
TEST
HALL SENSOR
SINE-TO-DIG
RS422
U
V
0°
Two, four and eight pole
commutating signals
U
120°
SIN + COS
2
2
Loss of magnet,
frequency error
NERR
AMPLITUDE
CORRECTION
PHASE
SHIFT
V
240°
W
INCR INTERFACE
W
ERROR MONITOR
AMPL CONTROL
SINE-TO-COM
Analog output signals
MA
SLO
0x00
0x0F
0x10
0x1F
0x77
0x7F
ZAP CONTROL
iC-MH8
16 Byte ZROM
PSOUT
NSOUT
0.5 V
pp
Data,
Programming
SLI
SERIAL
INTERFACE
VZAP
Programming
Voltage
0°
NCOUT
PCOUT
RAM
VNA1
BIAS/VREF
VND
ZAPROM
VNA2
C061010-2
180°
Angular position
a
360°
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ICHAUS [ IC-HAUS GMBH ]
