DV2031S2 - D6A, D6B, D7A, D7B on the schematic

Q: DV2031S2 - D6A, D6B, D7A, D7B on the schematic

I would like to build the circuit on page 5 of the DV2031S2 user manual: http://focus.ti.com/lit/ug/sluu023b/sluu023b.pdf

Where is the application note that is referenced? It seems to be referring to diode D6B and D7A. 

I am assuming that D6A and D6B are to keep the battery from discharging through the power supply through R21 but I am not sure about D7A or D7B.  Please explain the need for two diodes in each of these positions and what the purpose is of diodes D7A and D7B.


Q: Re: DV2031S2 - D6A, D6B, D7A, D7B on the schematic

all these are used for is to prevent discharge of the battery to the input which may be loaded by another circuit..

I am not aware of any application note.