Philips TDA1024
The TDAI024 is a monolithic integrated circuit intended for use in ON/OFF control of triacs in static switching applications. It incorporates zero voltage point triggering to minimize radio interference. The TDAI024 is mainly intended for applications such as switching resistive loads and replacing mechanical thermostats in, for example: - central heating installations, - washing machine heaters, - water heaters, - smoothing irons.TDA1024 II II A MAINS-ZERO TRIAC-TRIGGERING CIRCUIT QUICK REFERENCE DATA Supply voltage (via dropping resistor) Average supply current Trigger pulse width Max. trigger current capability Vs 17(av) tp 12max mains voltage typo 10 rnA typo 195 I-Is > 100 rnA PACKAGE OUTLINE plastic 8 lead dual in-line (see general section). June 1976 II II TDAI024 II II BLOCK DIAGRAM -common -1 mains (¥s) I t7 control circuit d.c. supply I +8 ZENER-LIMITED , D.C. SUPPLY -control input ...5..... reference input 4 INPUT BUFFER ~ - TDA1024 COMPARATOR .ff