Preliminary
Patent No.:
M371298 (Taiwan)
ZL 2010 2 0300629.5 (CHINA)
TTP112
(5).PWM Duty Rate Active High
a. Adjusts rate: 3% ~98% in change rate 0.2%.
Fpwm = Fosc/1072
PWM DIMMING
Note : if Fosc = 1.2MHZ Æ Fpwm=1.2KHz
3. TTP112 : Touch Direct/Toggle Mode Function
(1) Touch Direct output, active High (OPT1=1).
a. Touch detect time is 56ms (typical). There is “BI” sound from buzzer when it detects touch.
b. Touch release detect time is 46ms (typical).
Touch
Release
Ti
Detect time
typ. : 56ms
Detect time
typ. : 46ms
AT
(2) Touch Toggle Mode, initial state Low (OPT1=1).
Touch
Touch
Release
Release
Ti
AT
12’/07/12
Page 5 of 12
Ver 1.0
Reference Only
TTELEC [ TT Electronics ]
