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I highly doubt that you can do this.
To be able to connect to a BLE peripheral it has to advertise its presence and thus has to be discoverable. Otherwise a BLE central would not know how to connect to the peripheral.
You can do the other way round: making a peripheral being discoverable but not connectable (typical example for this is an iBeacon peripheral).
Lets say the central knows the BD_ARRD of the peripheral and was perviously connected to it.
Now you just want to connect back without making the peripheral announcing its present.
I know for sure that its possible with the BT classic.