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UC3714

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0.5-A/1-A dual-channel gate driver with single input and one-inverting output

UC3714 is in the process of being discontinued
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UCC27425 ACTIVE 4-A/4-A dual-channel gate driver with enable and inverting/non-inverting inputs Replacement

Product details

Number of channels 2 Power switch MOSFET Peak output current (A) 2 Input VCC (min) (V) 7 Input VCC (max) (V) 20 Features Aux Output, Dead Time Control Operating temperature range (°C) 0 to 70 Rise time (ns) 30 Fall time (ns) 25 Propagation delay time (µs) 0.05 Input threshold TTL Channel input logic Inverting Input negative voltage (V) 0 Rating Military Driver configuration Aux Output
Number of channels 2 Power switch MOSFET Peak output current (A) 2 Input VCC (min) (V) 7 Input VCC (max) (V) 20 Features Aux Output, Dead Time Control Operating temperature range (°C) 0 to 70 Rise time (ns) 30 Fall time (ns) 25 Propagation delay time (µs) 0.05 Input threshold TTL Channel input logic Inverting Input negative voltage (V) 0 Rating Military Driver configuration Aux Output
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Single Input (PWM and TTL Compatible)
  • High-Current Power FET Driver, 1-A Source and
    2-A Sink
  • Auxiliary Output FET Driver, 0.5-A Source and
    1-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-µA Sleep Mode
  • Power Output is Active-Low in Sleep Mode
  • Synchronous Rectifier Driver

  • Single Input (PWM and TTL Compatible)
  • High-Current Power FET Driver, 1-A Source and
    2-A Sink
  • Auxiliary Output FET Driver, 0.5-A Source and
    1-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-µA Sleep Mode
  • Power Output is Active-Low in Sleep Mode
  • Synchronous Rectifier Driver

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 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 interface 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.

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 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 interface 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.

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Technical documentation

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Type Title Date
* Data sheet Complementary Switch FET Drivers datasheet (Rev. B) 05 Apr 2012
Application brief External Gate Resistor Selection Guide (Rev. A) 28 Feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 Feb 2020
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 Oct 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

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