IC-MH8_14 Datasheet, PDF (1/25 Pages) IC-Haus GmbH – 12 BIT ANGULAR HALL ENCODER

iC-MH8
12 BIT ANGULAR HALL ENCODER
preliminary
Rev A1, Page 1/25
FEATURES
o Real-time system for rotation speed up to 120,000 rpm
o Integrated Hall sensors with automatic offset compensation
o 4x sensor arrangement for fault-tolerant adjustment
o Amplitude control for optimum operating point
o Interpolator with 4096 angular increments/resolution better
than 0.1^◦
o Programmable resolution, hysteresis, edge spacing, zero
position and rotating direction
o Incremental output of sensor position up to 8 MHz edge rate
o RS422-compatible AB encoder signals with index Z
o UVW commutation signals for eight pole EC motor applications
o Serial interface for data output and configuration
o SSI-compatible output mode
o Integrated ZAP diodes for module setup and OEM data,
programmable via serial interface
o Signal error (e.g. magnet loss) can also be read out via serial
interface
o Analogue sine and cosine differential signals
o Extended temperature range from -40 to +125 ^◦C
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
PACKAGES
QFN28 5 x 5 mm²
BLOCK DIAGRAM
+ 5V
VPA
PTE
Test
TEST
Loss of magnet, NERR
frequency error
ERROR MONITOR
Data,
Programming
MA
SLO
SLI
SERIAL
INTERFACE
Sine / cosine outputs
+ 5V
PCOUT NCOUT
S B
B
N ^B
B
HALL SENSOR
2
2
SIN + COS
AMPLITUDE
CORRECTION
AMPL CONTROL
0x00
0x0F
0x10
0x1F
0x77
0x7F
RAM
VNA1
PSOUT NSOUT
CONVERSION
LOGIC
SINE-TO-DIG
PHASE
SHIFT
SINE-TO-COM
VPD
A
B
Z
RS422
U
V
W
INCR INTERFACE
iC-MH8
16 Byte ZROM
Binary interpolation factors
1, 2, 4, ... 256, 512, 1024
A
B
Z
Two, four and eight pole
commutating signals
0°
U
120°
V
240°
W
Analog output signals
PSOUT
NSOUT
0.5 V
BIAS/VREF
VND
ZAP CONTROL
ZAPROM
VNA2
VZAP Programming
Voltage
C061010-sw
NCOUT
PCOUT
0°
180°
360°
Angular position a
Copyright © 2014 iC-Haus
http://www.ichaus.com