level shifting Increasing Voltage


Posted on Feb 5, 2014

Build a logic level shifter (that`s what it`s called) with a few discrete components (transistors and resistors) or you can go for a one-component solution, i. e. an IC. Most ICs won`t accept input voltages as low as 1. 4 V, but I found Fairchild`s FXLP34 which does. (You want the FXLP34P5X, the other versions have leadless packages and are


level shifting Increasing Voltage
Click here to download the full size of the above Circuit.

therefore more difficult to solder) A is where you supply the low-level input signal, Y is your "high"-level output signal. Vcc1 is your 1. 4 V connection, connect the required output voltage to Vcc (up to 3. 6 V).




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