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tps65530: Unused Channels

Part Number: TPS65530

I need to use channels 1-4, 8 only.  Channels 5, 6, 7 will not be used.  In order for channel 4 to operate, ENAFE needs to be high, as does XSLEEPn.  Would it be appropriate to ground the VCC5/6/7 and FB Pins?  Will this cause the chip to enter OCP mode?  If so, should I set the FB pin to the appropriate FB voltage (derived from REF)?