GENERAL DESCRIPTION

The TDA1023 is a bipolar integrated circuit for controlling

triacs in a proportional time or burst firing mode. Permitting

precise temperature control of heating equipment it is

especially suited to the control of panel heaters.

It generates positive-going trigger pulses but complies with

regulations regarding mains waveform distortion and RF interference.



FEATURES

• Adjustable width of proportional range

• Adjustable hysteresis

• Adjustable width of trigger pulse

• Adjustable repetition timing of firing burst

• Control range translation facility

• Fail safe operation

• Supplied from the mains

• Provides supply for external temperature bridge