HT7704 datasheet(1/7 Pages) HOLTEK

Part #	HT7704

Description	Touch Dimmer

PDF	7 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT7704

Touch Dimmer

Pin Assignment

Pad Assignment

Feature

•

Operating voltage: 4~10V

•

High noise immunity CMOS technology

•

High sensitivity and stability

•

Polarity insensitive with AC line

•

Minimal external components required

•

Loading range of sense input from 0 to 1000pf

•

50/60 Hz selectable

•

HT7704A: 3 steps control

HT7704B: 4 steps control

HT7704C: On/off switch

•

8 pin DIP/SOP package

General Description

The HT7704 series are CMOS LSIs in 8-lead DIP

package. They are designed to control the bright-

ness of an incandescent lamp by changing the

triggering angles of the TRIAC with touch sense

input.

HT7704 is a selectable 3-step, 4-step or on/off

switch function dimmer. High sensitivity and

stability account for its eminent performance.

The sense input can sustain very heavy capaci-

tive loading and propagate sense through a

highly resistive line. In addition, the applica-

tion circuit is very simple.

Chip size: 1640

× 1620 (µm)2

* The IC substrate should be connected to VSS

in the PCB layout artwork.

1

27th Dec ’96

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HT7704 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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