iC-RC1000
SIN/COS SIGNAL SAFETY MONITOR IC
preliminar y
Rev A2, Page 1/10
FEATURES
o
Sine/cosine encoder signal monitoring for SIL applications
o
Suitable for differential encoder signals of 1 Vpp
(250 mV amplitude per line)
o
Suitable for single-ended signals (500 mV amplitude per line)
o
Monitor for input frequencies from 0 to 500 kHz
o
Verification of DC common mode range per signal line
o
Monitoring of Lissajous curve with min/max limits
o
Cable fracture detection
o
Source decoupling and overvoltage clamping per pin by
external resistors
o
Single-failure-proof dual channel concept
o
Independent diagnostic outputs:
signal OK message and signal error message
APPLICATIONS
o
Sensor monitoring
o
Motion control
o
Functional safety
PACKAGES
MSOP10
BLOCK DIAGRAM
VCC1
PCOS
4kΩ
VCC1
PC1
NC1
1.2Vpp
sin2+cos2
0.8Vpp
-
+
hiOK
Reference
Rpd
PS1
NS1
NCOS
4kΩ
-
+
loOK
&
t>10ms
OK
&
VCC1OK
VCC Monitor
1MΩ
VCC2
100kΩ
DC Check
Rpd
maxOK
minOK
Channel OK
PSIN
4kΩ
NS2
Rpd
PS2
NC2
PC2
VCC2
1.2Vpp
-
+
hiERR
Reference
1MΩ
500kΩ
sin2+cos2
-
0.8Vpp
loERR
ERR
NSIN
4kΩ
+
1
t>10ms
1
GND
VCC2ERR
Rpd
DC Check
maxERR
minERR
VCC Monitor
Signal Splitter
Channel ERR
iC-RC1000
Copyright © 2011 iC-Haus
ICHAUS [ IC-HAUS GMBH ]
