BRIGHT IDEAS FOR WALL SWITCH LIGHTING CONTROLS LS7231-LS7234 CONTINUOUS DIMMER WITH See Data Sheet Figure 5 and Figure 7 DIM UNIQUE DELAYED OFF FEATURE AUTO DIM INITIAL CONDITION Off Off On On On Auto-Dimming Auto-Dimming Auto-Dimming Auto-Dimming ACTION SHORT TOUCH Dim Pad LONG TOUCH Dim Pad SHORT TOUCH Dim Pad LONG TOUCH Dim Pad PRESS Auto-Dim PRESS Auto-Dim SHORT TOUCH Dim Pad LONG TOUCH Dim Pad None RESULT Memory intensity or maximum intensity (1) Varies from min. intensity or mem. intensity (1)(2)(3) Off Varies from pre-touch intensity (2)(3) Begins auto-dimming to off (4) No change Off Varies towards minimum intensity (2) Auto-dims to off (1) Last intensity achieved before turn off is stored as memory intensity. LS7232, LS7234 have Memory Feature. (2) If LONG TOUCH remains when max. (min.) intensity is reached, the dimming direction will then go towards min. (max.) intensity. (3) Dimming direction will continue (reverse) from previous dimming direction. LS7232, LS7233 have Direction Reversal Feature. (4) Auto-dimming period determined by RC components and intensity level when Auto-Dim is activated. from LSI COMPUTER SYSTEMS, INC. LS7237 See Data Sheet Figure 5 STEP SEQUENTIAL STEP DIMMER or LS7538/LS7539 See AN703 INITIAL CONDITION Off On (1) LS7237 Sequences (2) LS7538 LS7539 Sequences ACTION TOUCH Step Pad TOUCH Step Pad RESULT First step in lighting sequence (1)(2) Next step in lighting sequence (1)(2) 1. Maximum Off 2. Low - Medium - Maximum - Off 3. Night Light - Low - Medium - Maximum - Off 1. Low - Medium - Maximum - Off 2. Night Light - Low - Medium - Maximum 3. Maximum - Medium - Low - Off (LS7538) 4. Maximum Off (LS7539) Off 062794-1 page 3SWITCH LIGHTING CONTROLS BRIGHT IDEAS FOR WALL LS7315 See Data Sheet Figure 5 L E V E L 1 LEDs LEVEL 2 MULTI-LEVEL DIMMER LEVEL 3 LEVEL 4 OFF INITIAL CONDITION Off On On ACTION PRESS Any Level PRESS Any Level PRESS Off RESULT Corresponding intensity level, and LED lights. Corresponding intensity level, and LED lights. Off, and Off LED lights. from LSI COMPUTER SYSTEMS, INC. LS7338 SEQUENTIAL TIMER WITH See Data Sheet Figure 5 and AN306 STEP INITIAL CONDITION Off Timed-On ACTION TOUCH Step Pad None Timed-On Auto-Dimming Auto-Dimming TOUCH Step Pad None TOUCH Step Pad TIMED-ON AND AUTO-DIM STEPS RESULT Timed-On period begins On until programmable timer expires then steps to Auto-Dim (1)(2) Steps to Auto-Dim (2) Auto-dimming to Off occurs over fixed time period (3) Off (1) Timer is programmed with RC components. (2) Transition from Timed-On to Auto-Dim indicated by reduction in light intensity to alert user. (3) Auto-dimming period is fixed by the IC at 209 seconds (60Hz). This period is Mask-Programmable. 071194-2 page 4SWITCH LIGHTING CONTROLS BRIGHT IDEAS FOR WALL LS7340 RETRIGGERABLE TIMER See Data Sheet Figure 5 and AN306 ON OFF INITIAL CONDITION Off Timed-On Timed-On Timed-On ACTION PRESS On None PRESS Off PRESS On WITH SEPARATE OFF CONTROL RESULT Timed-On period begins On until programmable timer expires, then steps to Off(1) Off Timed-On period retriggers (1) Timer is programmed with RC components. from LSI COMPUTER SYSTEMS, INC. LS7535 See Data Sheet Figure 5 and AN705 DUAL CONTROL CONTINUOUS ON DIM UP DIMMER WITH UNIQUE OFF DIM DOWN DELAYED OFF FEATURE AUTO DIM INITIAL CONDITION Off Off On On On On Auto-Dimming Auto-Dimming Auto-Dimming Auto-Dimming Auto-Dimming Auto-Dimming (1) (2) (3) (4) (5) ACTION SHORT PRESS On LONG PRESS On LONG PRESS On LONG PRESS Off SHORT PRESS Off PRESS Auto-Dim SHORT PRESS On LONG PRESS On SHORT PRESS Off LONG PRESS Off PRESS Auto-Dim None RESULT "Softly" turns On to memory intensity (1) Varies from min. intensity towards max. intensity (2) Varies towards max. intensity (2) Varies towards min. intensity (3) "Softly" turns Off Begins auto-dimming to off (4) "Softly" returns to memory intensity (5) Varies towards max. intensity (2) "Softly" turns off Varies towards min. intensity (3) No change Auto-dims to Off Last intensity achieved before turn off is stored as memory intensity. On (Dim Up) varies intensity towards maximum and stops there. Off (Dim Down) varies intensity towards minimum and stops there. Auto-dimming period controlled by RC components and intensity level when Auto-Dim is activated. Last intensity achieved before Auto-Dim started is stored as memory intensity. BRIGHT IDEAS FOR WALL SWITCH LIGHTING CONTROLS page 5 071194-4 LS7340 See AN704 ON OFF ON - OFF - DELAYED OFF DELAYED OFF INITIAL CONDITION Off On On ACTION PRESS On PRESS Off PRESS Delayed Off RESULT On Off On until Delayed Off timer expires, then steps to Off (1) (1) Delayed Off Timer is programmed with RC components. from LSI COMPUTER SYSTEMS, INC. LS7340 SINGLE PUSHBUTTON See AN305 and AN 306 ON OFF INITIAL CONDITION Off Timed-On Timed-On ACTION PRESS Button None PRESS Button (1) Timer is programmed with RC components. CONTROL TIMER WITH OFF RESULT Timed-On period begins On until programmable timer expires, then steps to Off (1) Off BRIGHT IDEAS FOR WALL SWITCH LIGHTING CONTROLS page 6 071194-3 LS7631-LS7632 See Data Sheet Figure 5 CONTINUOUS DIMMER FOR DIM LOW VOLTAGE HALOGEN TRACK LIGHTING INITIAL CONDITION Off Off On On ACTION SHORT TOUCH Dim Pad LONG TOUCH Dim Pad SHORT TOUCH Dim Pad LONG TOUCH Dim Pad RESULT Soft turn-on to memory intensity or maximum intensity(1) Varies from minimum intensity or memory intensity (1)(2)(3) Off Varies from pre-touch intensity (2)(3) (1) Last intensity achieved before turn off is stored as memory intensity. Mode 1 for LS7631 and LS7632 has Memory Feature. (2) LS7631: If LONG TOUCH remains when max (min.) intensity is reached, the dimming direction with then go towards min. (max.) intensity. LS7632: If LONG TOUCH remains when max. (min.) intensity is reached, the dimming will cease to change. If LONG TOUCH is removed and reapplied, the dimming direction will then go towards min. (max.) intensity. (3) Dimming direction will continue (reverse) from previous dimming direction. Mode 1 and Mode 2 for LS7631 and LS7632 have Direction Reversal Feature. from LSI COMPUTER SYSTEMS, INC. GUIDE TO REFERENCED APPLICATION NOTES AN305 - Adapting the LS7339, LS7340 to Single-Pushbutton Control AN306 - Accurately Extending the Timing Range of the LS7338-LS7340 AN703 - Using the LS7538, LS7539 in a Wall Switch AN704 - Using the LS7340 as an On-Off-Delayed Off Light Switch AN705 - A Dual Dimming Control Light Switch with Unique Delayed Off Feature BRIGHT IDEAS FOR WALL SWITCH LIGHTING CONTROLS 062195-5 page 7