Transcription of TCA 785 Phase Control IC TCA 785
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TCA 785 Phase Control IC TCA 785
Semiconductor Group1 TCA 785 This Phase Control IC is intended to Control thyristors, triacs, and transistors. The trigger pulsescan be shifted within a Phase angle between 0 and 180 . Typical applications includeconverter circuits, AC controllers and three- Phase current IC replaces the previous types TCA 780 and TCA 780 D.(top view)Pin ConfigurationPhase Control IC TCA 785Pb-free lead plating; RoHS compliant Bipolar ICFeatureslReliable recognition of zero passagelLarge application scopelMay be used as zero point switchlLSL compatiblelThree- Phase operation possible (3 ICs)lOutput current 250 mAlLarge ramp current rangelWide temperature rangePG-DIP-16-1 TypeOrdering CodePackageTCA 785Q67000-A2321PG-DIP-16-1 PinSymbolFunction1 GNDG round234Q2Q UQ2 Output 2 invertedOutput UOutput 1 inverted5 VSYNCS ynchronous voltage67IQ ZInhibitOutput Z8 VREFS tabilized voltage910R9C10 Ramp resistanceRamp capacitance11V11 Control voltage12C12 Pulse extension13 LLong pulse1415Q 1Q 2 Output 1 Output 216 VSSupply voltagePin Definitions and Functions Group2 TCA 785 Functional DescriptionThe synchronization signal is obtained via a high-ohmic resistance from the line voltage(voltageV5).
relevant thyristor via a trigger pulse transformer. During the positive line half-wave, the gate of the second thyristor is triggered by a trigger pulse transformer at pin 15. Fully Controlled AC Power Controller Circuit for Two High-Power Thyristors
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