When the IC chip starts to work, the MOS of the channel is in the on-state.
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② The IC output current channel is turned on in turn. The first channel will be the priority through the current. When the second channel flows current; The first channel is closed, and the first two channels are closed when the third channel flows through the current.
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③ The current through the three channels is not the same! IC output current is set to current RMS value; The third channel is the end of the maximum current output.
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④ Several MOS of the IC internal channel should be switching MOS; Mainly responsible for opening and closing in turn. Three channels will eventually series a power MOS as a linear constant current function.