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2-16 key touch IC
CT8224S-2/3
CT8224S-2/3 is a high-performance touch detection chip, which is manufactured by CMOS technology, and has built-in voltage stabilizing module, hardware anti-jitter and environmental self-calibration.
Adaptive algorithm and other effective measures are integrated to greatly improve its anti-interference performance. Can be used in media (plastic shell, glass ceramics, acrylic, etc.)
The touch function is realized under the condition of isolation protection, and the safety is high. It has wide working voltage characteristics, fast corresponding synchronous output mode, and is widely used in
Smart panel touch control, lighting control and other DC consumer electronics products
Product detail
Working voltage: 2.4V~5.5V
Operating current: the typical value is only 3uA in low power consumption mode and 6UA in fast mode (@ vdd = 3.0V and no load).
Power-on initialization is completed within 0.5s after the power supply is stable, during which all functions are prohibited.
The response time in fast mode is about 45ms, and the maximum response time in low power mode is about 160ms(@VDD=3.0V).
Auto-calibration function: the reference value is refreshed every 1s within 8s after power-on. If there is a touch button within 8s or there is no touch button after 8s, the recalibration period is switched to 4s.
Built-in voltage stabilizing circuit provides stable voltage for detection circuit.
The built-in debounce circuit can effectively prevent misoperation caused by external noise interference.
Sensitivity can be adjusted by external capacitance.
Can be used on the surface of glass, ceramics, plastics, acrylic and other media.
Package form: SOT23-6 /SOP-8L
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