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High Speed, Monolithic Pin DriverThe EL7154 three-state pin driver is parTIcularly well suitedfor ATE and level shifTIng applicaTIons. The 4A peak drivecapability, makes the EL7154 an excellent choice whendriving high speed capaciTIve lines.The P-Channel MOSFET is completely isolated from thepower supply, providing a high degree of flexibility. Pin (7)can be grounded, and the output can be taken from pin (8)when a “source follower” output is desired. The N-ChannelMOSFET has an isolated drain, but shares a common buswith pre-drivers and level shifter circuits. This is necessary toensure that the N-Channel device can turn off effectivelywhen VL goes below GND. In some power-FET and IGBTapplications, negative drive is desirable to insure effectiveturn-off. The EL7154 can be used in these applications byreturning VL to a moderate negative potential.
