UC3715DP

更新时间： 2024-01-25 18:09:09

品牌	Logo	应用领域
德州仪器 - TI		驱动器开关
页数	文件大小	规格书
16页	773K
描述
Complementary Switch FET Drivers

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UC3715DP 数据手册

UC1714, UC1715, UC2714

UC2715, UC3714, UC3715

www.ti.com

SLUS170B –FEBRUARY 1999–REVISED MAY 2013

Complementary Switch FET Drivers

Check for Samples: UC1714, UC1715, UC2714, UC2715, UC3714, UC3715

FEATURES

DESCRIPTION

These two families of high speed drivers are

designed to provide drive waveforms for

•

Single Input (PWM and TTL Compatible)

High-Current Power FET Driver, 1-A Source

and 2-A Sink

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

•

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

which

allows

immediate

activation

the

corresponding switch when zero voltage is applied.

These devices require a PWM-type input to operate

and interface with commonly available PWM

controllers.

•

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

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.

BLOCK DIAGRAM

PWR

50ns œ500ns

TIMER

INPUT

UC1714

ONLY

V_REF

AUX

VCC

50ns œ500ns

TIMER

V_CC

BIAS

ENBL

GND

LOGIC

GATES

V_REF

TIMER

REF

GND

1.4V

ENBL

ENABLE

Pin numbers refer to J, N and D packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

UNLESS OTHERWISE NOTED this document contains

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...16

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