1

OUTA

N/C

2

INA

3

GND

7

N/C

8

INVERTING

NON-INVERTING

OUTB

4

5

INVERTING

NON-INVERTING

INB

6

VDD

UCC27323, UCC27324, UCC27325

UCC37323, UCC37324, UCC37325

www.ti.com

SLUS492H – JUNE 2001 – REVISED MAY 2013

Dual 4-A Peak High-Speed Low-Side Power-MOSFET Drivers

Check for Samples: UCC27323, UCC27324, UCC27325, UCC37323, UCC37324, UCC37325

1

FEATURES

APPLICATIONS

2

•

Industry-Standard Pin-Out

•

Switch-Mode Power Supplies

•

High Current-Drive Capability of ±4 A at the

•

DC/DC Converters

Miller Plateau Region

•

Motor Controllers

•

Efficient Constant-Current Sourcing Even at

•

Line Drivers

Low Supply Voltages

•

Class D Switching Amplifiers

•

TTL/CMOS Compatible Inputs Independent of

Supply Voltage

DESCRIPTION

•

20-ns Typical Rise and 15-ns Typical Fall

The

UCC37323/4/5

family

of

high-speed

dual-

Times with 1.8-nF Load

MOSFET drivers deliver large peak currents into

capacitive loads. Three standard logic options are

•

Typical Propagation-Delay Times of 25 ns with

offered — dual-inverting, dual-noninverting, and one-

Input Falling and 35 ns with Input Rising

inverting and one-noninverting driver. The thermally

•

4.5-V to 15-V Supply Voltage

enhanced 8-pin PowerPAD MSOP package (DGN)

•

Supply Current of 0.3 mA

drastically lowers the thermal resistance to improve

long-term reliability. UCC3732x is also offered in the

•

Dual Outputs are Paralleled for Higher Drive

standard SOIC-8 (D) or PDIP-8 (P) packages.

Current

Using a design that inherently minimizes shoot-

•

Available in Thermally Enhanced MSOP

through current, these drivers deliver 4-A of current

PowerPAD™ Package with 4.7°C/W

where it is needed most at the Miller plateau region

•

Rated From –40°C to +125°C

during the MOSFET switching transition. A unique

•

TrueDrive™ Output Architecture Using Bipolar

BiPolar and MOSFET hybrid output stage in parallel

and CMOS Transistors in Parallel

also allows efficient current sourcing and sinking at

low supply voltages.

BLOCK DIAGRAM

1

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.

2

PowerPAD, TrueDrive are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.