Product Details
Touch Detector IC TTP224B-BSBN SSOP-16 4 Key Touch Pad Sensor Chip
Description
The TTP224B-BSBN/TTP224B-BSB TonTouchTM IC is capacitive sensing
design specifically for touch pad controls. The device built in
regulator for touch sensor. Stable sensing method can cover
diversity conditions. Human interfaces control panel links through
non-conductive dielectric material. The main application is focused
at replacing of the mechanical switch or button. The ASSP can
independently handle the 4 touch pads with 4 direct output pins
Feature
- Operating voltage 2.0V ~ 5.5V
- Operating current, @VDD=3V no load
- At low power mode typical 2.0uA, maximum 4.0uA
- The response time max about 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 output or toggle output selection by pin option
(TOG pin)
- Q pin is CMOS output can be selected active high or active low by
pin 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
- The re-calibration period is about 1 sec within 8 sec after
power-on. When key has been
- touched within 8 sec or key has not been touched more than 8 sec
after power-on, then the
- re-calibration period change to 4 sec
Applications
- Wide consumer products
- Button key replacement
Series item
TTP224B TTP224B-BSBN TTP224B-COBN TTP224B-SQBN TTP224B-RO8N
TTP224B-BCBN TTP224B-RC8N
Company Profile
ATFU Electronics LTD is a professional distributor of imported
original integrated circuit chip with 7 years experience.
ATFU mainly focus on LED Driver IC, MCU chip, Flash memory chip and
programmerable chip IC at the very beginning.
With the development of ATFU, also based on the value to meet
client's need, ATFU expand to Diode and capacitor too these years.
As Our Founder Mr Bin said, The most important thing in bussiness
is turst, and how you convince people, firstly you should be
honest.
In ATFU team, all people are honest to client, we try our best to
give advices, we try our best to serve each client, we try our best
to be client's best support. This is how ATFU growing, grown with
fast speed.
We sincerely hope could start our business with anyone who need
components chip in this world, come and contact me now for any.
