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TTP223N-HA6
2016/6/15 Page 1 of 8 Version:1.0
1 KEY TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP223N-HA6 TonTouch
TM
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(1~50pF) 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)
Have the maximum on time 100sec
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
TTP223N-HA6
2016/6/15 Page 2 of 8 Version:1.0
BLOCK DIAGRAM
Q
AHLB
TOG
control
Key-on & timing
circuit
driver
&
mode
Output
circuit
Touch detecting
circuit
System oscillator
Timing counter
Sensor oscillator
circuit
detecting circuit
Reference
Sensor &
I
PACKAGE LIST
Package Type SOT-23-6L
TTP223N-HA6 PACKAGE CONFIGURATION
TTP223N-HA6
223NH
(Latter 4 digit)
Lot No.
TOG
VDD
AHLBI
VSS
Q
6
5
43
2
1
PAD DESCRIPTION
Pad No. Pad Name I/O Type Pad Description
1 Q O CMOS output pin
2 VSS P Negative power supply, ground
3 I I/O Input sensor port
4 AHLB I-PL Output active high or low selection,
1=>Active low; 0(Default)=>Active high
5 VDD P Positive power supply
6 TOG I-PL Output type option pin,
1=>Toggle mode; 0(Default)=>Direct mode
Pin Type
I CMOS input only
O CMOS push-pull output
I/O CMOS I/O
I-PL CMOS input and pull-low resister
P Power / Ground
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