OPA172: OPA172 Output oscillation and False trigger OCP issue

Part Number: OPA172
Other Parts Discussed in Thread: OPA192

Hi Guys

Our customer is using our opa172 as current sense. Please see below the schematic:

But when they use it test the output current, the OPA172 Amp's output will be noisy or oscillated at output 86A load. that will lead to false trigger OCP. But when they change another one OPA192. The output will be stable and will not trigger the COP any more. (OAP172 and OPA192 P2P replace and no other components change)

OPA172:      CH2：output current；CH3：output voltage；CH4：OP output（IC411 Pin 1）

OPA192:      CH2：output current；CH3：output voltage；CH4：OP output（IC411 Pin 1）

Your feedback are very appreciated.

Thanks

-Pengfei