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LS7237

Part Number	LS7237
Manufacturer	LSI
Description	TOUCH CONTROL LAMP STEP DIMMER
Published	Apr 18, 2005
Detailed Description	LSI/CSI UL ® LS7237 (631) 271-0400 FAX (631) 271-0405 April 1995 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Me...
Datasheet	LS7237 PDF File

Overview

LSI/CSI UL ® LS7237 (631) 271-0400 FAX (631) 271-0405 April 1995 LSI Computer Systems, Inc.
1235 Walt Whitman Road, Melville, NY 11747 A3800 TOUCH CONTROL LAMP STEP DIMMER FEATURES: • PLL synchronization allows use as a Wall Switch • Provides brightness control of an incandescent lamp with a touch plate or mechanical switch • Can control speed of shaded pole and universal AC motors • Controls the "duty cycle" from 23% to 88% (conduction angles for AC half-cycles between 45˚ and 158˚, respectively) • Operates at 50Hz/60Hz line frequency • Extension input for remote activation • +12V to +18V DC Power Supply (VSS - VDD) • 8-Pin Plastic DIP , 8-Pin SOIC-See Figure 1 PIN ASSIGNMENT - TOP VIEW V SS (+V) 1 8 TRIG LSI MODE 2 7 V DD (-V) LS7237 CAP 3 6 EXT DESCRIPTION: LS7237 is a monolithic, MOS integrated circuit designed to control the brightness of an incandescent lamp.
The output of the LS7237 triggers a triac connected in series with a lamp(See Figure 5).
The lamp brigh...

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