How common is it for a person to receive the 5 year sentence for flagrant non support?

My brother was arrested for a warrant related to non payment of fines (not related to child support). While in jail, he missed a summons for a child support court date. He previously served a year for non support (4 children, all different mothers, this case only pertains to one child, he is up to date on the other 3) but that was close to 5 years ago. During his current incarceration, he was diagnosed with bipolar and started on medication. He also was arrested at his place of employment. Yesterday upon seeing the judge, he was told he faces up to 5 years in prison for this case. What is the likelihood given his situation that he will receive the maximum sentence?