1 key Touch Pad Detector IC

Outline

zThe TTP233D-HA6 TonTouch

TM

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

zOperating voltage 2.4V ~ 5.5V

zBuilt-in regulator for touch sensor

zBuilt-in low voltage reset (LVR) function

zOperating current, @VDD=3V no load

At low power mode typical 2.5uA, maximum 5uA

zThe response time max about 220mS at low power mode @VDD=3V

zSensitivity can adjust by the capacitance（1~50pF）outside

zStable touching detection of human body for replacing traditional direct switch key

zProvides Low Power mode

zProvides direct output or toggle output selection by pin option (TOG pin)

zQ pin is CMOS output can be selected active high or active low by pin option (AHLB pin)

zHave the maximum on time about 16 sec(±50%)

zAfter power-on have about 0.5sec stable-time, during the time do not touch the key pad, and

the function is disabled

zAuto calibration for life

The re-calibration period is about 1 sec within 8 sec after power-on. When key has been

touched within 8 sec or key has not been touched more than 8 sec after power-on, then the

Applications

zWide consumer products

zButton key replacement