1FEATURES

• Single Input (PWM and TTL Compatible)

• High Current Power FET Driver,

1-A Source/2-A Sink

• Auxiliary Output FET Driver,

0.5-A Source/1-A Sink

• Time Delays Between Power and Auxiliary

Outputs Independently Programmable from

50 ns to 700 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-μA Sleep Mode

• Power Output is Active Low in Sleep Mode

• Synchronous Rectifier Driver

DESCRIPTION

The UC1715 is a high speed driver designed to provide drive waveforms for complementary switches.

Complementary switch configurations are commonly used in synchronous rectification circuits and active

clamp/reset circuits, which can provide zero voltage switching. In order to facilitate the soft switching transitions,

independently programmable delays between the two output waveforms are provided on this driver. The delay

pins also have true zero voltage sensing capability which allows immediate activation of the corresponding switch

when zero voltage is applied. This device requires a PWM-type input to operate and can be interfaced with

commonly available PWM controllers.