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PDF WTC6208ASI Data sheet ( Hoja de datos )
| Número de pieza | WTC6208ASI | |
| Descripción | 8 CHANNELS TOUCH SENSING BUTTON CHIP | |
| Fabricantes | WINCOM | |
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Hay una vista previa y un enlace de descarga de WTC6208ASI (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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WTC6208ASI
http://www.wincomtech.com
WTC6208ASI 8 CHANNELS TOUCH SENSING BUTTON CHIP
SPECIFICATION(V1.8)
1 Product Introduction ........................................................................................................................................... 3
1.1 Brief Introduction .................................................................................................................................... 3
1.2 Technology .............................................................................................................................................. 3
1.3 Sensibility Adjustment............................................................................................................................. 4
1.4 Csel Value and Pannel Thickness ............................................................................................................ 4
1.5 The Package Of WTC6208ASI ............................................................................................................ 4
2 Features and Parameters ..................................................................................................................................... 4
2.1 Key Features ............................................................................................................................................ 4
2.1.1 Simple application circuit and fewer external Components ........................................................ 4
2.1.2 High Stability............................................................................................................................... 4
2.1.3 Compact Keyboard with small Space .......................................................................................... 5
2.1.4 Excellent Waterproof ................................................................................................................... 5
2.1.5 Excellent Anti-electromagentic Interference ............................................................................... 5
2.1.6 Unique Wire Length Self-adjustable Technology ........................................................................ 5
2.1.7 Satisfying the requirements of industrial application................................................................... 6
2.2 Parameters ............................................................................................................................................... 6
2.2.1 Operating Voltage ........................................................................................................................ 6
2.2.2 Level Of Output........................................................................................................................... 6
2.2.3 Panel (Insulated Media) Thickness .............................................................................................. 6
2.2.4 Effective Response Time Of Touch ............................................................................................. 6
2.2.5 Operating Temperature ................................................................................................................ 6
2.2.6 Storage Temperature .................................................................................................................... 6
3 Min Applications................................................................................................................................................. 7
4 Pin Assignment ................................................................................................................................................... 7
5 Output Output Indication .................................................................................................................................... 8
5.1 The timing sequence chart ....................................................................................................................... 8
5.2 The truth table of WTC6208ASI ............................................................................................................. 9
6 Typical Application Circuit................................................................................................................................. 9
1 page  
WTC6208ASI
http://www.wincomtech.com
pollutants piled on the surface, so as to provide sound precision and operation consistency in
various environments. It may be transported for a long distance and used in various conditions.
The unique compensation algorithm and high-intensity anti-interference design can ensure the
product free from accidental operation in case of long-term operation.
2.1.3 Compact Keyboard with small Space
The users can use the compact keyboard with small spaces
The adjacent key suppression function can prevent the accidental operation of adjacent keys. The
users can use the compact keyboard with fewer spaces (space less than 2mm).
2.1.4 Excellent Waterproof
It’s designed with special waterproof feature. The WTC6208ASI can not only resist splash and
water overflow, but also can be used normally after being flooded, different with the general
products of other company sold on the market at present, those may be operated accidently upon
water splash and overflow and operate slowly after waterlogging, or may be operated accidently
after being pressed by fingers.
2.1.5 Excellent Anti-electromagentic Interference
It may be used for the home appliance and products applied in general application conditions. The
products can be good anti- RF signal interference performance even use the one layer PCBs, it can
resist the interference of most RF interference source upon the IC, including GSM cell phones.
Upon application for military purpose and other special case, it’s recommended to use the two
layers PCBs and design it as per the layout requirement offered by this datasheet.
2.1.6 Unique Wire Length Self-adjustable Technology
The identical products sold on the market at present are involved with the problems of great
discrepancy of induction sensibility as the connection line from the sense element to IC pin varies.
While the line length self-adjustable feature innovated by us may automatically correct the
discrepancy. The users can obtain the almost consistent sensibility of all keys on the whole sense
panel, without bothering with complicated adjustment.
5 Page 
WTC6208ASI
http://www.wincomtech.com
capacitor with the precision of 5% with small temperature coefficient for Csel, or the terylene capacitor with the
precision of 10%. If surface mounted capacitors are used, please select X7R material surface mount capacitor or
NPO material surface mount capacitor with the precision of 10% or above for CSEL.
7.2 The area of sense element
Increasing the area of sense element may help to improve the penetrating ability of touch sense.
8 Power Supply
WTC6208ASI is used to measure the tiny change of capacitance, requiring small ripples and noise of power
supply, free from the external strong disturbance of power supply penetration, especially when it’s applied to
induction cooker and microwave furnace, the external interference and abrupt change of voltage should be
effectively separated. So the power supply is required with higher stability. It’s recommended to apply the
stabilized pressure line composed of 78L05 as shown below.
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet WTC6208ASI.PDF ] | |
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