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UT8803 Datasheet(PDF) 2 Page - Unisonic Technologies |
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UT8803 Datasheet(HTML) 2 Page - Unisonic Technologies |
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2 / 6 page  UT8803 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 2 of 6 www.unisonic.com.tw QW-R502-094,B PIN CONFIGURATION 8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9 UOU1 NII 1 II 1 VREF GND TB QTEST TC1 CDS TRIAC RELAY ZCD VDD II 2 NII 2 UOU2 PIN DESCRIPTION PIN NO. PIN NAME FUNCTION 1 UOU1 First stage OP amp output 2 NⅡ1 First stage OP amp positive input 3 Ⅱ 1 First stage OP amp negative input 4 VREF Reference voltage 5 GND Ground 6 TB Time base for System Clock. The periods TTb =(1±20%)RC/1.1 7 QTEST Test 8 TCI Timer clock generator. The periods TTci =(1±20%)RC/1.1 9 CDS CDS detect, inhibitory output in the daytime. 10 TRIAC TRIAC output, active low 11 RELAY RELAY output, active high 12 ZCD Detect zero cross of AC line, synchronously pin TRIAC 13 VDD Power supply 14 2 Ⅱ Second stage OP amp negative input 15 N 2 Ⅱ Second stage OP amp positive input 16 UOU2 Second stage OP amp output |
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