SL443A

The SL443A is designed as a symmetrical burst control integrated circuit in an 8-pin DIL plastic package and is mainly intended for manual heat control applications, for example cooker hot plates and powerful hair dryers. Its typical applications include cokker hotplates, powerful hairdryers.

The five features of the SL443A. (1)Well defined load power/potentiometer displacement characteristics. (2)High immunity against spurious triac firing under noisy mains environment (automatic spike filtration). (3)Enables compliance with cenelec EN50,006/BS5406-1976 (A) stitching rate controlled and (B) symmetrical burst control. (4)Very low external component count. (5)Triac firing pulses inhibited whilst the IC's power supply is being established. Those are all the main features.

Some absolute maximum ratings of the SL443A have been concluded into several points as follow. (1)Its voltage on pin 8 would be max 10V. (2)Its voltage on pin 4 would be max 10V. (3)Its supply current, pin 2 peak value +/-12m would be max 50mA. (4)Its non-repetitive peak current would be max 200mA. (5)Its output current, pin 5 would be short circuit protected. (6)Its output current pin 4 average value would be max 10mA and short circuit protected. (7)Its operating ambient temperature range would be from -10°C to 75°C. (8)Its storage temperature range would be from -55°C to 125°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of the SL443A are concluded as follow. (1)Its shunt regulating voltage pin 3 would be typ 14.7V and max 16V at Ta=75°C. (2)Its supply voltage trip leve pin 3 would be typ 12.2V. (3)Its potentiometer supply pin 5 would be min 6.8V and typ 7.0V and max 7.6V. (4)Its open circuit ON voltage would be typ 8.5V. (5)Its open circuit OFF voltage would be max 0.1V. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!