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need up using TTP223 touch sensor with high power LED

tekstyle

New Member
hi all,

I am trying to build a very simple circuit that uses a TTP223 module to control a high power LED such as a CREE XML, XPG, XRE powered by 1 single 3.7 li-ion battery. My understanding is that the output current max out at 8mA which is well below the operating amp of the LED itself. I have read about using transistors or mosfet to increase the current or voltage to achieve this but I can not figure out how to hook it up if both share the same power source. also I have looked at the CN5711 chip which is used as a constant current LED driver but I have no idea how to trigger it to get it to turn on and off with the TTP223. any help is appreciated. Thank you!.

TTP223: https://datasheet.lcsc.com/szlcsc/TTP223-BA6_C80757.pdf
https://www.instructables.com/id/Tutorial-for-TTP223-Touch-Sensor-Module-Capacitive/

CN5711: http://www.consonance-elec.com/pdf/datasheet/DSE-CN5711.pdf

CREE XML2: https://www.cree.com/led-components/media/documents/XLampXML2.pdf
forward voltage 2.85 V @ 700 mA
 

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