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TTP223N-BA6 데이터시트 PDF




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부품번호 TTP223N-BA6 기능
기능 1 KEY TOUCH PAD DETECTOR IC
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TTP223N-BA6 데이터시트, 핀배열, 회로
Preliminary
TTP223-BA6
TTP223N-BA6
TonTouchTM
1 KEY TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP223-BA6/TTP223N-BA6 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
ƒ At low power mode typical 1.5uA, maximum 3.0uA
ƒ The response time max 220mS at low power mode @VDD=3V
ƒ Sensitivity can adjust by the capacitance(0~50pF) outside
ƒ Stable touching detection of human body for replacing traditional direct switch key
ƒ Provides Low Power mode
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 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
At low power mode the re-calibration period is about 4.0sec normally,
When key detected touch and released touch, the auto re-calibration will be redoing after
about 16sec from releasing key
ƒ The sensitivity of TTP223N-BA6 is better than TTP223-BA6’s.
But the stability of TTP223N-BA6 is worse than TTP223-BA6’s.
APPLICATION
ƒ Wide consumer products
ƒ Button key replacement
09’/11/30
Page 1 of 8
Ver : 2.1
Free Datasheet http://www.datasheet4u.com/




TTP223N-BA6 pdf, 반도체, 판매, 대치품
Preliminary
TTP223-BA6
TTP223N-BA6
TonTouchTM
FUNCTION DESCRIPTION
1. Sensitivity adjustment
The total loading of electrode size and capacitance of connecting line on PCB can affect the
sensitivity. So the sensitivity adjustment must according to the practical application on PCB. The
TTP223-BA6/TTP223N-BA6 offers some methods for adjusting the sensitivity outside.
1-1 by the electrode size
Under other conditions are fixed. Using a larger electrode size can increase sensitivity. Otherwise it
can decrease sensitivity. But the electrode size must use in the effective scope.
1-2 by the panel thickness
Under other conditions are fixed. Using a thinner panel can increase sensitivity. Otherwise it can
decrease sensitivity. But the panel thickness must be below the maximum value.
1-3 by the value of Cs (please see the down figure)
Under other conditions are fixed. When do not use the Cs to VSS, the sensitivity is most sensitive.
When adding the values of Cs will reduce sensitivity in the useful range (0Cs50pF).
ELECTRODE
Cs
VDD
5
VDD
3 I Q1
TOG 6
AHLB 4
VSS
2
2. Output mode
The TTP223-BA6/TTP223N-BA6 has direct mode active high or low by AHLB pad option. And
has toggle mode by TOG pad option. Pad Q is CMOS output.
TOG
0
0
1
1
AHLB Pad Q option features
0 Direct mode,
CMOS active high output
1 Direct mode,
CMOS active low output
0 Toggle mode,
Power on state=0
1 Toggle mode,
Power on state=1
09’/11/30
Page 4 of 8
Ver : 2.1
Free Datasheet http://www.datasheet4u.com/

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TTP223N-BA6 전자부품, 판매, 대치품
Preliminary
Package Type: SOT-23-6L
Package Outline Dimension
TTP223-BA6
TTP223N-BA6
TonTouchTM
09’/11/30
Page 7 of 8
Ver : 2.1
Free Datasheet http://www.datasheet4u.com/

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TTP223N-BA6

1 KEY TOUCH PAD DETECTOR IC

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