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Questions about the Solar Magic SM3320-BATT-EV (SM72442 & SM72295)

Julian Baugatz
Prodigy 10 points
Other Parts Discussed in Thread: SM72442, SM72295

Hello, I have some quesions about the SM72442, especially about the SM3320-BATT-EV.

1. On the SM3320 board is a comperator U11B, which shutdown the SM72442 by increasing the output voltage about a threshold. I think the SM72295 has the same feature inside (OVS and OVP Pin)?

2. On the SM3320 board is a jumper (Burn In) connectet to NC4 of SM72442, what is the function of this jumper?

3. On the SM3320 board is a comperator U11A, which can switch the output current between two values.  But for my understanding its also possible two change the output with Bit 30:39 in Reg 3 ?

4. On the SM3320 board is a start up circuitry, to start up the SM72442 in Boost Mode. Why need a buck/boost converter an external start up?

5. If I only use the boost mode, can I can omit or bypass transistors for buck mode?

Thanks

Julian