I am using the TPIC6B595 instead of the 74HC595 specifically because the TPIC allows higher voltages, or at least that is what I thought. Now I am looking at the data sheet and it lists that the logic supply voltage is only 7V (I am using a component that requires 32). I originally thought I could pipe my 36V through the chips Vcc in.
To add to the confusion, there is a listing stating that the component has a "Output clamp voltage VDS" of 50V. Later on the paper describes it as "Power DMOS drain to source voltage Vds".
Does this mean that the circuit takes in a voltage less than 7V and outputs 50V, or does it take in an input less than 50V and also output 50V? For some background, I plan on using this register to control this 7 Segment display (http://evilmadscience.com/productsmenu/partsmenu/107-sevensegment). The registers spec sheet is at http://www.sparkfun.com/datasheets/IC/TPIC6B595.pdf. Also, I hope that the limited current output of teh register will save me the trouble of manually lowering the .7A of source current I have.
Here is how I plan to wire this up (roughly). I am pretty sure this is hugely wrong, and all I got right was the TPIC. I thing I will have to add some resistors along the red rail, but i am not sure =/
I apologize if my ignorance appalls you. Any guidance would be greatly appreciated. Thanks =)