Complementary Switch FET Drivers With Auxiliary Output
These two families of high speed drivers are 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 these drivers. The delay pins also have true zero voltage sensing capability which allows immediate activation of the corresponding Switch when zero voltage is applied. These devices require a PWM-type input to operate and CAN be interfaced with commonly available PWM Controllers
In the UC1714 series, the AUX output is inverted to allow driving a P-Channel MOSFET In the UC1715 series, the two outputs are configured in a true complementary fashion.
By Texas Instruments
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