Depends on how broken. I'd call a concrete co or two and see what they recommend.
Kelli is right. How broken is your driveway? Is it just badly cracked and chipped or really broken? If it is cracked and chipped there is a cement/concrete patch that you can purchase and repair them. The bags have instructions on them on how to proceed. The issue to me would be why it is damaged. If it is damaged because of frost and shifting in the season changes that is one thing. If it is damaged because the soil underneath it is wearing away that is another. Repair if it is weather damage and call an expert of the other.