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CST6233DMA
CST6233DMA is a single key touch detection chip, which is built in the touch detection chip. To provide a stable voltage for touch-sensitive electricity? Use, stable touch detection effect can be widely satisfied? With the needs of the application, the touch detection chip is specially designed to replace the traditional key, the size of the touch detection PAD can depend on the size of the touch detection pad. The same sensitivity? Design compatibility Low power consumption and wide operating voltage are the characteristics of this touch chip in DC or AC applications.
CST6233DMA Description
CST6233DMA is a single key touch detection chip, which is built in the touch detection chip. To provide a stable voltage for touch-sensitive electricity? Use, stable touch detection effect can be widely satisfied? With the needs of the application, the touch detection chip is specially designed to replace the traditional key, the size of the touch detection PAD can depend on the size of the touch detection pad. The same sensitivity? Design compatibility Low power consumption and wide operating voltage are the characteristics of this touch chip in DC or AC applications.
CST6233DMA Feature
Operating voltage 2.4V~5.5V
Built-in voltage regulator? Provide a stable voltage for touch detection? Use
Built-in low voltage reset (LVR) function
Working electricity? @VDD=3V, typical value 4uA in no-load low power mode? Max. 8uA
Output response time is approximately 3V in low power mode 46ms@VDD=3V
Can be adjusted by external capacitance (1~50pF) sensitive?
Stable human touch detection can replace the traditional key switch
Low power mode available
Provide output mode selection (TOGpin) to choose between direct output or toggle output
Maximum output time approx. 16 seconds (±35%@VDD=3.0V)
Qpin is N-tube open leakage output, low level effective output
After power-on, there is a stable time of about 0.5 seconds. To touch the detection point, all functions are disabled
Automatic calibration function
Refresh the reference value every 1 second within 8 seconds after power-on. If you touch the button within 8 seconds after power-on or do not touch the button after 8 seconds, recalibrate the cycle. Let's change it to 4 seconds
Built-in voltage regulator? Provide a stable voltage for touch detection? Use
Built-in low voltage reset (LVR) function
Working electricity? @VDD=3V, typical value 4uA in no-load low power mode? Max. 8uA
Output response time is approximately 3V in low power mode 46ms@VDD=3V
Can be adjusted by external capacitance (1~50pF) sensitive?
Stable human touch detection can replace the traditional key switch
Low power mode available
Provide output mode selection (TOGpin) to choose between direct output or toggle output
Maximum output time approx. 16 seconds (±35%@VDD=3.0V)
Qpin is N-tube open leakage output, low level effective output
After power-on, there is a stable time of about 0.5 seconds. To touch the detection point, all functions are disabled
Automatic calibration function
Refresh the reference value every 1 second within 8 seconds after power-on. If you touch the button within 8 seconds after power-on or do not touch the button after 8 seconds, recalibrate the cycle. Let's change it to 4 seconds
CST6233DMA application
A variety of consumer products
Substitute push button
Substitute push button
CST6233DMA block diagram
CST6233DMA pin definition
Foot order | Foot name | I/O type | Foot definition |
1 | Q | OD | N tube open leakage output pin, low active |
2 | VSS | P | Negative power supply, grounded |
3 | I | I/O | Sensor input port |
4 | NC |
| Test pin, do not connect other signal lines, can be connected to VDD or GND |
5 | VDD | P | Positive power supply |
6 | TOG | I-PL | Output mode selector pin: 0(default) direct output; 1 Latch (toggle) output |
CST6233DMA application circuit diagram
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