General Description
The HT7704 series are CMOS LSIs in 8-lead DIP package. They are designed to control the brightness of an incandescent lamp by changing the triggering angles of the TRIAC with touch sense input.

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