HM223B
HM223B is 1 key Touch Pad Detector manufactured by H&M Semiconductor.
1 key Touch Pad Detector IC
Outline z The HM223B TonTouchTM is a touch pad detector IC which offers 1 touch key. The device built-in regulator for touch sensor. Stable sensing method can cover diversity conditions. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. Low power consumption and wide operating voltage are the contact key Features for DC or AC application.
Characteristic z Operating voltage 2.4V ~ 5.5V z Built-in regulator for touch sensor z Built-in low voltage reset (LVR) function z Operating current, @VDD=3V no load
At low power mode typical 2.5uA, maximum 5uA z The response time max about 220mS at low power mode...