DETECTOR IC. TTP223N-DO8 Datasheet

TTP223N-DO8 IC. Datasheet pdf. Equivalent


TONTEK TTP223N-DO8
TTP223N-DO8
1 KEY TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP223N-DO8 TonTouchTM is a touch pad detector IC which offers 1 touch key. 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.
FEATURES
ƒ Operating voltage 2.0V~5.5V
ƒ Operating current @VDD=3V, no load
At low power mode typical 1.5uA, maximum 3.0uA
At fast mode typical 3.5uA, maximum 7.0uA
The response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V
ƒ Sensitivity can adjust by the capacitance(1~50pF) outside
ƒ Stable touching detection of human body for replacing traditional direct switch key
ƒ Provides Fast mode and Low Power mode selection by pad option(LPMB pin)
ƒ Provides direct modetoggle mode by pad option(TOG pin)
Q pin is CMOS output
ƒ All output modes can be selected active high or active low by pad option(AHLB pin)
ƒ Have the maximum on time 100sec by pad option(MOTB pin)
ƒ After power-on have about 0.5sec stable-time, during the time do not touch the key pad,
And the function is disabled
ƒ Auto calibration for life
And the re-calibration period is about 4.0sec, when key has not be touched at fast mode.
At low power mode the re-calibration period is the same 4.0sec normally,
When key detected touch and released touch, the auto re-calibration will be redoing after
about 16sec from releasing key
APPLICATION
ƒ Wide consumer products
ƒ Button key replacement
2016/6/15
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TTP223N-DO8 Datasheet
Recommendation TTP223N-DO8 Datasheet
Part TTP223N-DO8
Description 1 KEY TOUCH PAD DETECTOR IC
Feature TTP223N-DO8; TTP223N-DO8 1 KEY TOUCH PAD DETECTOR IC GENERAL DESCRIPTION The TTP223N-DO8 TonTouchTM is a touch pa.
Manufacture TONTEK
Datasheet
Download TTP223N-DO8 Datasheet




TONTEK TTP223N-DO8
BLOCK DIAGRAM
Sensor oscillator
I circuit
Sensor &
Reference
detecting circuit
LPMB
MOTB
Timing counter
Touch detecting
circuit
System oscillator
circuit
Key-on & timing
control
TTP223N-DO8
Output
mode
&
driver
circuit
Q
TOG
AHLB
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TONTEK TTP223N-DO8
PACKAGE LIST
Package Type SOP-8
TTP223N-DO8 PACKAGE CONFIGURATION
TTP223N-DO8
TTP223N-DO8
TTP223N-D
Date code
Lot No.
PAD DESCRIPTION
Pad No. Pad Name I/O Type
Pad Description
1 VDD
P Positive power supply
2
AHLB
I-PL Output active high or low selection,
1=>Active low; 0(Default)=>Active high
3 MOTB I-PH Maximum on time 100sec selection,
1(Default)=>Disable, 0=>Enable
4 I I/O Input sensor port
5
6
7
8
Pin Type
I
O
I/O
I-PH
I-PL
P
Q
VSS
LPMB
TOG
O
P
I-PH
I-PL
CMOS output pin
Negative power supply, ground
Low power mode selection,
1(Default)=>Fast mode; 0=>Low power mode
Output type option pin,
1=>Toggle mode; 0(Default)=>Direct mode
CMOS input only
CMOS push-pull output
CMOS I/O
CMOS input and pull-high resister
CMOS input and pull-low resister
Power / Ground
2016/6/15
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