LS7538, LS7539

AGC Touch Control Step Dimmer (8 Pins)
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LS7538, LS7539

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Description

The LS7538 and LS7539 are CMOS integrated circuits which provide trigger pulses for triac phase control of incandescent lamps. The circuits are designed to operate with a wide variety of lamp sizes ranging from small table lamps to large floor lamps. The AGC loop automatically adjusts touch sensitivity to be independent of lamp size.

Features:

• Touch Sensitivity is independent of Touch Plate Size and Line-Plug Polarity
• Pin selection of three available Brightness Step Sequences
• LS7539 and LS7541 are functionally equivalent
• Push button control can be used instead of ‘Touch’
• Applications include Wall Switch step dimmers and Touch Control step dimmers for small table lamps to large floor lamps

Additional information

Product

LS7538-S (8-Pin SOIC), LS7538 (8-Pin DIP), LS7539-S (8-Pin SOIC), LS7539 (8-Pin DIP)

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