The SM74104 High Voltage Gate Driver is designed to drive both the high side and the low
side N-Channel MOSFETs in a synchronous buck configuration. The floating high-side driver is
capable of working with supply voltages up to 100V. The high side and low side gate drivers are
controlled from a single input. Each change in state is controlled in an adaptive manner to prevent
shoot-through issues. In addition to the adaptive transition timing, an additional delay time can
be added, proportional to an external setting resistor. An integrated high voltage diode is
provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at
high speed while consuming low power and providing clean level transitions from the control logic
to the high side gate driver. Under-voltage lockout is provided on both the low side and the high
side power rails.
For all available packages, see the orderable addendum at the
end of the data sheet.
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