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A1780 Schematic ( PDF Datasheet ) - Alpha Microelectronics

Teilenummer A1780
Beschreibung Dimmer IC
Hersteller Alpha Microelectronics
Logo Alpha Microelectronics Logo 




Gesamt 2 Seiten
A1780 Datasheet, Funktion
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a1780 general features
The a1780 is a dimmer IC for halogen lamps. It uses an integrated time controller to
control a wide range of DMOS switches, and includes protection circuits against over-
current, over-voltage and over-temperature. A LED gives a visual indication of the output
status at all times.
Dimming range: between 10% and 95%
Flexible soft start function (hot and cold – soft start)
Zero-crossing detection
Protection function for over-current, over-voltage and over-temperature
LED status indication for protection function
Ambient temperature range 0°C to 70°C
Package: Die-in-waffle-pack or SOP14
example application schematic
A typical application schematic for a 350W load.





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