iC-OV 5-Bit Optical Encoder - iC-Haus - #1

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5..25V +5V iC-OV THERMAL SHUTDOWN LOW VOLTAGE BIAS ERROR TRACK1 TRACK2 2 2 1 1 TRACK3 TRACK4 TRACK5 LED-CURRENT CONTROL DREF DDC MONITOR (see TRACK2) (see TRACK2) (see TRACK2) 1 c2 TEST 1 c2 100nF CB RSET 14k LED RNER 10k RLED 47 VCC GND LED C5 C4 C3 C2 C1 NER NINV TREF AGND ISET 8 1 7 6 5 4 3 13 10 2 9 14 11 12 TNRF BLCC OVC3 IS Vref 1.0 0.5 iC-OV 5-BIT OPTO ENCODER FEATURES APPLICATIONS ° High synchronism and technical reliability due to monolithic construction plus integrated photodiodes ° Short track pitch (600 ìm) ° 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 ° Scanning with constant-light evaluation in absolute and multiturn rotary encoders CHIP 3.6mm × 2.9mm BLOCK DIAGRAM © 2000 Rev C0 iC-Haus GmbH Tel +49-6135-9292-0 Integrated Circuits Fax +49-6135-9292-192 Am Kuemmerling 18, D-55294 Bodenheim http://www.ichaus.com