DRV8825EVM: Heating issues

Part Number:DRV8825EVM

Hi team,

I am using  DRV8825 stepper Driver ,Driver ic is getting heated,

Stepper driver sense resister 0.2ohm and Vref is 0.9 volt

Stepper motor specification :

1.24 volt

2. 0.72A each winding 

Our application operate at room tempreture

please suggest me how to taken care heat dissipation in PCB, and How to reduce heat

Thanks in advancse

Thanks & Regards

Krishna