How to use UC2638

[seinfield]

Hi, i am making a little robot, i finished the 6 ultrasonic distance sensors, but now i am designing the motor control.

I founded this IC: UC2638 from TI, but does someone knows how it works?.
How can i turn a motor to the other side?
I am using servo motors.


Thanks
Gilberto
Mexico.

[Acetronics2]

Hi,Gilberto

Did you find the datasheet ???

http://www.alldatasheet.com ...

It's basically a Voltage to PWM converter ...

Alain

[seinfield]

Thanks, i know that it is a voltage to PWM coverter;

But how i know to move the motor in other direction?

[Acetronics2]

A quick look at the internal scheme or a reading of the datasheet could have shown you that:

INput = VCC > Max Forward
= AREFIN > stop
= VEE > Max Reverse

... fig 2 is very explicit about that !!!

Good night

Alain

[seinfield]

Thanks, i missed that.

Upps, sorry, i read the datasheet at night and i was sleepy, now i understand!

Thanks!