On another group that I belong to, we are having a disagreement. So I'm asking the question here because this forum has the most knowledgeable people.
They are having problems blowing a motor driver chip. The chip, SN754410NE ( http://focus.ti.com/docs/prod/folders/print/sn754410.html )
The data sheet says that the logic input is TTL or low voltage CMOS, in the chart of electrical values it says that the "max" input is 5VDC.
In their circuit they are using a 12VDC input voltage.
I say that is the reason they're blowing the chip. The gurus over there say all modern chips can take the 12VDC and the 5 Vdc means nothing.
What does the knowledge of this site have to say?
Thank you for your answers, Cary
They are having problems blowing a motor driver chip. The chip, SN754410NE ( http://focus.ti.com/docs/prod/folders/print/sn754410.html )
The data sheet says that the logic input is TTL or low voltage CMOS, in the chart of electrical values it says that the "max" input is 5VDC.
In their circuit they are using a 12VDC input voltage.
I say that is the reason they're blowing the chip. The gurus over there say all modern chips can take the 12VDC and the 5 Vdc means nothing.
What does the knowledge of this site have to say?
Thank you for your answers, Cary