The main difference between the a15 and m2 chips is their nature
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a15 driver chip, using the standard TTL logic level signal control, with two enable control terminals, in the case of not being affected by the input signal, to allow or disable the device to work, there is a logic power input terminal, so that the internal logic circuit part to work under low voltage; Can be connected to the external detection resistance, the change of the feedback to the control circuit.
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m2 power management chip, its package adopts 3.5mm*9mm size 42 pins, TQFN heat dissipation enhanced standard package, pin layout fully takes into account, Type-C\/Dual Type-A signal layout, simplifying the wiring process in the application design