SLWU079D March 2012 – April 2016
The TSW1406 draws its power supply from the 5-V source of the USB connection, so no additional external power supply is needed in most applications. For applications where the USB connection does not supply the 5 V, there is the option to connect an external 5-V supply to the test point loop labeled as TP2 and GND to TP1. To use the 5-V test point loop, make sure to remove R42 to disconnect the board’s 5-V supply from the USB connector.