No. Legal Separation is a distinct process in some states, but not in Texas.
In Texas, you can be married and living together or apart. Separation is a necessary step for a couple to get divorced here. Once someone files for divorce, a court may make, or the parties may agree on, temporary orders which can remain in effect until the divorce is final. The temporary orders generally govern custody, support and possession schedules for children, as well as various financial issues, a determination of who gets to stay in the house, who pays the bills and who uses and controls what property.
You technically remain married until the divorce is granted. If you want to start the divorce process in Texas, you need to file a petition for divorce.
This is the second in a series on common questions we are asked.