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DETECTOR IC. TTP223N-HA6 Datasheet |
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TTP223N-HA6
1 KEY TOUCH PAD DETECTOR IC
GENERAL DESCRIPTION
The TTP223N-HA6 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
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
2016/6/15
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BLOCK DIAGRAM
Sensor oscillator
I circuit
Timing counter
Sensor &
Reference
detecting circuit
Touch detecting
circuit
TTP223N-HA6
Output
mode
&
driver
circuit
Q
System oscillator
circuit
Key-on & timing
control
PACKAGE LIST
Package Type SOT-23-6L
TTP223N-HA6 PACKAGE CONFIGURATION
TTP223N-HA6
TOG
AHLB
223NH
Lot No.
(Latter 4 digit)
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
O
I/O
I-PL
P
CMOS input only
CMOS push-pull output
CMOS I/O
CMOS input and pull-low resister
Power / Ground
2016/6/15
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ELECTRICAL CHARACTERISTICS
‧Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Power Supply Voltage
Symbol
TOP
TSTG
VDD
Input Voltage
Human Body Mode
VIN
ESD
Note VSS symbolizes for system ground
Conditions
Ta=25°C
Ta=25°C
TTP223N-HA6
Value
-20 ~ +70
-50 ~ +125
VSS-0.3 ~ VSS+5.5
VSS-0.3 ~ VDD+0.3
4
Unit
V
V
KV
‧DC/AC Characteristics (Test condition at room temperature=25 )
Parameter
Symbol
Test Condition
Min. Typ. Max. Unit
Operating Voltage
VDD
2.0 3 5.5 V
System oscillator
Sensor oscillator
FFAST
FLOW
FSEN
VDD=3V
VDD=3V no load
- 512K -
16K
- 1M -
Hz
Hz
Operating Current
Input Ports
IOP VDD=3V
at low power mode
and output no load
VIL Input Low Voltage
- 1.5 3.0
uA
0 - 0.2 VDD
Input Ports
VIH Input High Voltage
0.8 - 1.0 VDD
Output Port Sink Current
IOL VDD=3V, VOL=0.6V
- 8 - mA
Output Port Source Current
Output Response Time
Input Pin Pull-low Resistor
IOH VDD=3V, VOH=2.4V
-
TR VDD=3V, At fast mode
VDD=3V, At low power mode
RPL VDD=3V,
(TOG, AHLB)
-4 - mA
60 mS
220
28K ohm
2016/6/15
Page 3 of 8
Version 1.0
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