DRV8262: Drive TEC problem

Tool/software:

Hi

  I use DRV8262 to drive TEC and have the following two issues.

  1. As for the rated current mentioned in the manual, may I ask what this rated current refers to?

   2. I use DRV8262, single bridge mode, drive 12V/3A TEC, the output end has serious overshoot, please see how to solve it. thank you