LS7314

LSI/CSI UL ® LS7314-7315 (631) 271-0400 FAX (631) 271-0405 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 A3800 AC POWER CONTROLLERS FEATURES: 10 I/Os to Select/Indicate up to ten Power Levels Inputs activated by Touch or Pushbutton Switch Output switches pure and precise AC Power to Load Operates with 50Hz/60Hz line frequency Rugged, latchup-free process technology +10V to +14V operation (Vss-VDD) LS7314, LS7315 (DIP; LS7314-S, LS7315-S (SOIC) - See Figure 1 APPLICATIONS: Universal and shaded-pole motor speed control for modern appliance designs. Eliminates awkward mechanical switch assemblies and multi-tapped motor windings. (See Fig. 4C) Multi-level light switches. (See Fig. 4D) DESCRIPTION: The LS7314 - LS7315 are MOS integrated circuits specifically designed for appliance motor speed control, lighting control, etc. I/Os (PLs) are provided for selecting/indicating from one to ten power levels. The LS7315 is designed for pushbutton control. The LS7314 is designed for touch control. (See Figures 4A and 4B) INPUT/OUTPUT DESCRIPTION: PL1-PL10 (Pins 1-8, 15, 16) Ten inputs/outputs for selecting ten output phase angles (power levels). When no power level is selected (such as after system power-up) PL1-PL10 all act as inputs. When a power level is selected by applying a logic zero at one of these inputs for TH time (See Dynamic Characteristics), the output (TRIG) is turned on at the phase angle selected and the PL input switches statu...