Preliminary
Patent No.:
M371298 (Taiwan)
ZL 2010 2 0300629.5 (CHINA)
TTP112
BLOCK DIAGRAM
System
SCK
oscillator
Timing counter
AT
Sensor
oscillator
TSCK
Output
PWM
circuit
TI
CI
ISEN
BU
Sensor
VCHK
VCO
VIO
VCHK
SEL
NSSEL
TSSEL
OPT1
OPT2
Option
control
Touch decting
control
PAD DESCRIPTION
Pad No. Pad Name I/O Type
Pad Description
1
2
3
SCK
TSCK
SEL
I
I
System clock input pin
Sensor clock input pin
I-PL Mode selection :
PWM Mode : 0(Default) => non-delay off, 1=>delay off
Direct/Toggle Mode : 0(Default) => non-MOT, 1=>MOT 80sec
Positive power supply
4
5
VDD
NSSEL
P
I-PL PWM Dimmer speed mode selection (6sec/12sec):
0(Default) => normal speed(6sec/cycle),
1=> slow speed(12sec/cycle)
Direct/Toggle Mode : 0(Default) =>Direct , 1=>Toggle
6
7
8
VCHK
TI
I_PL Low voltage detect
I
I
O
Touch input/ Switch input
Sensor control input
Test out
CI
9
VIO
TSSEL
VSS
ISEN
10
11
12
I-PH Function setting input pin.
Negative power supply, ground
P
I-PH Sensitivity adjustment of release
1(Default)=> more sensitive, 0 => more insensitive
13
14
15
16
BU
AT
OPT1
OPT2
O
O
Output pin to Buzzer
Output pin control NMOS active high
I-PH Function setting input pin.
I-PH Function setting input pin.
Pin Type
I
CMOS input only
O
CMOS output
I-PH
I-PL
P
CMOS input and pull-high resister
CMOS input and pull-low resister
Power / Ground
12’/07/12
Page 2 of 12
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Reference Only
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