TDA1024 - ZERO CROSSING TRIAC TRIGGER
The TDA1024 generates positive-going output pulses to trigger a triac.
These trigger pulses coincide with the zero crossings of the mains voltage.
This minimizes r.f.
interference and transients on the mains supply.
Supply: V q c and R X (pins 8 and 7) The TDA1024 may be supplied by an external d.c.
LINEAR LSI PRODUCTS ZERO CROSSING TRIAC TRIGGER TDA1024 G E N E R A L D ESC R IPT IO N The T D A 1 0 2 4 is a bipolar integrated circuit delivering positive pulses for triggering a triac or a thyristor.
It is prim arily intended for use as a static switch to replace mechanical thermostats that switch resistive loads, such as: central heating installations washing machine heaters water heaters smoothing irons The T D A 1 02 4 provides its own d.c.
supply
TDA1024 Features
* are:
* adjustable trigger pulse width
* adjustable hysteresis
* supplied from the mains
* provides supply fo r external temperature bridge
* protected inputs and output
* low supply current, low dissipation Q U IC K R E F E R E N C E D ATA Supply vol
