Hi, I am having an issue with a circuit I would like to try. Its for a flashlight and enabling modes.
So I have the buck step down driver which uses the IC ax2002. I would like to cut the enable pin which takes a positive input and somehow use a switched negative output from a 3 mode driver.
So the EN pin on the ax2002 is connected to the + with a 10k resistor. The board I have for the modes modulates the - side. I need to somehow turn the - into a positive.
Now I was thinking of a transistor, but im not sure what part is available (if any) to take a neg- input and send out a positive output to control the enable pin on the second board.
Also, the EN pin input is sensitive enough that even touching it and a + lead will start the IC. in case this matters..
Any suggestions?
So I have the buck step down driver which uses the IC ax2002. I would like to cut the enable pin which takes a positive input and somehow use a switched negative output from a 3 mode driver.
So the EN pin on the ax2002 is connected to the + with a 10k resistor. The board I have for the modes modulates the - side. I need to somehow turn the - into a positive.
Now I was thinking of a transistor, but im not sure what part is available (if any) to take a neg- input and send out a positive output to control the enable pin on the second board.
Also, the EN pin input is sensitive enough that even touching it and a + lead will start the IC. in case this matters..
Any suggestions?