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I 've built a pcb for the NCP2824, excactly as in Figure 19, Single Ended Configuration, but I've not connected the control pin (pin C2, CNTL) which should be connected with a microcontroler, because I thought I could use it without a microcontroler. Can I 'wake up' the IC without a microcontroller?

CNTL pin has to be connected to VDD (high side) in order to wake up. If CNTL pin is connected to the GND the NCP2824 will be in the shutdown mode.

Please refer to our Test Procedure for the NCP2824 Evaluation Board.
Answered by:
ON Semiconductor
2013-12-17 13:09:00.924