iC-OV
5-BIT OPTO ENCODER
FEATURES
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High synchronism and technical reliability due to monolithic
construction plus integrated photodiodes
Short track pitch (600 µm)
Scanning with constant-light evaluation
Photoelectric amplifier with high cut-off frequency
Current comparators with hysteresis
Current-limited TTL-compatible push-pull outputs
Adjustable LED current control for constant receive power
Integrated 40mA driver for the LED
Integrated test aid
Output of track 1 can be inverted to change the counting
direction during Gray Code scanning
Overtemperature circuit-breaker with hysteresis
Detection and fault message when the safe operating range
is exceeded, as the result of undervoltage, over-temperature
or an LED current outside the control range
Low power consumption
APPLICATIONS
°
Scanning with constant-light
evaluation in absolute and
multiturn rotary encoders
CHIP
3.6mm × 2.9mm
BLOCK DIAGRAM
+5V
1.0
12
RSET
14k
VCC
0.5
LED
8
CB
100nF
Vref
AGND
1
RLED
47
11
ISET
1
DREF
LED
1
DDC
IS
MONITOR
LED-CURRENT CONTROL
C5
TRACK5
(see TRACK2)
7
C4
TRACK4
(see TRACK2)
6
C3
TRACK3
(see TRACK2)
5
2
C2
TRACK2
4
2
C1
TRACK1
3
14
5..25V
NINV
iC-OV
9
10
TREF
TNRF
1
c2
1
c2
THERMAL
SHUTDOWN
LOW VOLTAGE
BIAS
BLCC OVC3
NER
GND
ERROR
13
2
RNER
10k
TEST
© 2000
iC-Haus GmbH
Integrated Circuits
Am Kuemmerling 18, D-55294 Bodenheim
Rev C0
Tel +49-6135-9292-0
Fax +49-6135-9292-192
http://www.ichaus.com
ICHAUS [ IC-HAUS GMBH ]
