Контролер

Маркування: 223B
Корпус: SOT-23-6

1 key touch pad detector ic

Технічні параметри:

Operating voltage 2.0 V~5.5 V
Operating current @VDD=3V, no load
At low power mode typical 1.5 uA, maximum 3.0 uA
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 key switch
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 active or low by pad option(AHLB pin)
After power-on have about 0.5 sec 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 4.0 sec normally,
Key When detected touch and released touch, the auto re-calibration will be redoing after about 16sec from key releasing

(Дивіться даташит в специфікаціях)