Current Sense Amplifier and Voltage Comparator in Same Pacakge
If you  must use a current sense amp with comparator rather than an eFuse or something like that, TI makes quite a few devices that could work for your application.  Here are a couple of examples but you can search the website for more:

http://www.ti.com/lit/ds/symlink/ina202-q1.pdf 

http://www.ti.com/lit/ds/symlink/ina300.pdf

http://www.ti.com 

Looks like Maxim also has some products that would work:

http://www.maximintegrated.com/en/products/analog/amplifiers/MAX4373.html