LS7540, LS7540-S
AGC Touch Control Light Switch with Soft-Off (8 Pins)
Touch Sensitivity is independent of Touch Plate Size and Line-Plug Polarity
If Off, a 'Touch' produces Max Intensity (On) instantaneously
If On, a 'Touch' initiates intensity ramp-down (Soft-Off)。 Max intensity to Off ramp-down time is programmable by an external RC。 The Soft-Off feature provides light for the User to exit the room。 Ramp-down time = 0 if no RC is connected。
Application of a 'Touch' during ramp-down causes the ramp-down to stop。 Once stopped, a 'Touch' causes the ramp-down to Off to resume。 Stopping and starting the ramp-down can be repeated as often as desired thus giving the User full control in setting the light intensity。
Pushbutton control can be used instead of 'Touch'。
Applications include Wall Switches and Touch Control modules for small table lamps to large floor lamps
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