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PDF TTP223-BA6 Data sheet ( Hoja de datos )
| Número de pieza | TTP223-BA6 | |
| Descripción | 1 KEY TOUCH PAD DETECTOR IC | |
| Fabricantes | TT | |
| Logotipo |  |
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Preliminary
TTP223-BA6
1 KEY TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP223-BA6 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
Operating voltage 2.0V~5.5V
Operating current @VDD=3V, no load
At low power mode typical 1.5uA, maximum 3.0uA
The response time max 220mS at low power mode @VDD=3V
Sensitivity can adjust by the capacitance(0~50pF) outside
Stable touching detection of human body for replacing traditional direct switch key
Provides Low Power mode
Provides direct mode、toggle mode by pad option(TOG pin)
Q pin is CMOS output
All output modes can be selected active high or active low by pad option(AHLB pin)
After power-on have about 0.5sec stable-time, during the time do not touch the key pad,
And the function is disabled
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
APPLICATION
Wide consumer products
Button key replacement
08’/08/15
Page 1 of 8
Ver : 1.0
Free Datasheet http://www.datasheet4u.com/
1 page  
Preliminary
TTP223-BA6
3. Low power mode
The TTP223-BA6 is Low Power mode. It will be saving power. When detecting key touch, it will
switch to Fast mode. Until the key touch is released and will keep a time about 12sec. Then it
returns to Low Power mode.
The states and timing please see below figure.
Low Power
mode timing
Fast mode
timing
Low Power
mode timing
Fast mode
timing
I
VDD
VSS
~160ms
~20ms
~160ms
~20ms
POSSIBLE KEY TOUCH KEY RELEASE
(NOT REALLY TOUCH)
KEY TOUCH
Q VDD
VSS
KEY RELEASE
Low Power Mode
ABOUT 12SEC
Low Power
mode timing
~160ms
4. Option pin
For power saving concern and package bonding option consideration, all the feature option pins
with latch type design and initial states are 0 or 1 as power on. If those pins are forced to VDD or
VSS, the states will be changed to 1 or 0 without any current leakage to conflict the power saving
issue.
Feature option pins
Initial state by Power on
AHLB
0
TOG
0
08’/08/15
Page 5 of 8
Ver : 1.0
Free Datasheet http://www.datasheet4u.com/
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TTP223-BA6.PDF ] | |
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