Embedded developers can quickly integrate proximity and touch sensing technology without writing any software This article refers to the address: http:// 21ic Microchip Technology Inc. has announced the expansion of its MTCH10x mTouch touch sensing portfolio with the introduction of the MTCH102-5-8 capacitive touch controller. In a pure hardware configuration, these 2, 5, and 8-channel controllers can replace mechanical buttons with simple digital outputs, making it easy to add proximity and touch detection technology for applications where size, power, and cost are limited. For high reliability and more sensitive touch performance, including gloved operation, the MTCH102-5-8 capacitive touch controller is equipped with an advanced multi-level noise filtering algorithm. The MTCH102-5-8 controller supports a range of touch sensor shapes and sizes, automatically compensates for environmental conditions, and operates robustly in the presence of water. In addition, even with touch sensors with long board traces, active protection improves proximity sensitivity and ensures robust electronic design. Dr. Roland Aubauer, Director of Human Interfaces at Microchip, said: "Our mTouch controllers provide a fast total solution for developing touch applications in low-cost embedded applications while ensuring product performance. Developers do not need to write software. With a very simple interface, you can quickly update your mechanical keyboard to a capacitive touch keyboard to improve product performance." The MTCH102-5-8 low-power touch controller creates a robust, ready-to-use touch solution for industrial (eg lighting switches), home automation (eg security control panels, thermostats and lighting control), office equipment (eg printers) , copiers and fax machines) and the consumer market (such as toys, white goods and small appliances) and other areas of the rapid growth of capacitive human-machine interface. Development support To simplify the evaluation and configuration of capacitive touch interfaces, Microchip also introduced a new compact demo board (part number: DM160229) to support the MTCH102-5-8. The demo board will be available in November. Supply The new MTCH102 mTouch touch-sensing, low-power, two-channel capacitive touch controller is available in MSOP or uDFN packages and is sampling now and in volume production. The MTCH105 low-power, five-channel capacitive touch controller is available in QFN or TSSOP packages and is sampling now and in volume production. The MTCH108 low-power, eight-channel capacitive touch controller is available in uQFN or SSOP packages and is sampling now and in volume production.
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MAIN DIMENSIONS AND STANDARD PARTICULARS
ANSI Class
57-1
57-2
57-3
57-4
57-5
Creepage Distance/mm
356
559
737
1015
1145
Dry Arcing Distance/mm
165
241
311
368
438
Cantilever Strength/kn
12.5
12.5
12.5
12.5
12.5
Low Frequency Dry Flashover Voltage/kv
80
110
125
150
175
Low Frequency Wet Flashover Voltage/kv
60
85
100
125
150
Critical Impulse Flashover Voltage, Pos/kv
130
180
210
255
290
Critical Impulse Flashover Voltage, Neg/kv
155
205
260
340
380
Test Voltage to Ground/kv
15
22
30
44
44
Maximum RIV at 1000KHZ/μv
100
100
200
200
200
Net Weight/kg
5.2
9.0
11.0
16
23
Dimensions of the pin/mm
M20(M16)
M20
M20
M20
