UC3715DTR

FEATURES

●Single Input(PWM and TTL Com patible)

●High-Current Power FET Driver，1-A Source and 2-A Sink

●Auxiliary Output FET Driver,0.5-A Source and l-A Sink

●Time Delays Between Power and Auxiliary outputs Independently Programmable from 50 to 500-ns

●Time Delay or True Zero-Voltage Operation Independently Configurable for Each Output

●Switching Frequency to 1 MHz

●Typical 50-ns Propagation Delays

●ENBL Pin Activates 220- uA Sleep Mode

●Power Output is Active-Low in Sleep Mode

●Synchronous Rectifier Driver

DESCRIPTION

These two families of high speed drivers are for designedtoprovidedrivewaveforms complementary switches. Complementary switch configurations are commonly used in synchronous rectification circuits and active clamplreset circuits, which provide zero vo1tage switching.In order to facilitate the soft switching transitions, independently programmabledelaysbetweenthe_ twooutput waveforms are provided on these drivers. The delay pins also have true-zero voltage-sensing capability whichallowsimmediate the activation of corresponding switch when zero vo1tage is app1ied.

These devices require a PWM-type input to operate andinterface with commonly available PWM controllers.

In the UC1714 series,the AUx output is inverted to a11ow driving a p-channe1 MOSFET.In the UC1715 series, the two outputs are configured in a true comp1ementary fashion.

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