brightid - LSI CSI

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