CANT read the TC4432 datasheet correctly?

[lerameur]

Hi,

I am trying to use the TC4432. I am doing the exact circuit of page 7
below. My Vdd is at 12v, and my input is coming from a pic chip running
at 10khz 60% duty cycle. I was pretty sure that I could run the TC4432 with a 5v input and get 12v output with same frequency and duty cycle as the input..

http://www.datasheetcatalog.com/data...4/TC4432.shtml
page 7 of microchip

What I am getting at the output is oscillation between 10v low to 12v
high. The frequency is good, but it is not coming down to zero volt
like expected. Any body used this chip and can show me a working
circuit or have any ideas why that is?


K

[Acetronics2]

Hi,

Did you had a look at HOW the outputs are designed ??? ...

Do RTCC Pic pin ( RA.4 / TOCKI ) behaviour sound something to you ??? same "problem" ... same solution.

Alain

[lerameur]

Hi,

aa ok , just looked into the pic16F88 datasheet and could not find any of those key words.
Where can I find information on this?
MOst information I found was software based.

thanks

K

[lerameur]

I shorted pin 6 and 7, from the internal schematic these two port were floating, works good now.

k