UCC27424-EP中文资料德州仪器数据手册PDF规格书

1 Features

• Industry-Standard Pin-Out

• Enable Functions for Each Driver

• High Current Drive Capability of ±4 A

• Unique BiPolar and CMOS True Drive Output

Stage Provides High Current at MOSFET Miller

Thresholds

• TTL/CMOS Compatible Inputs Independent of

Supply Voltage

• 20-ns Typical Rise and 15-ns Typical Fall Times

with 1.8-nF Load

• Typical Propagation Delay Times of 25 ns with

Input Falling and 35 ns with Input Rising

• 4-V to 15-V Supply Voltage

• Dual Outputs Can Be Paralleled for Higher Drive

Current

• Available in Thermally Enhanced MSOP

PowerPAD™ Package

• Rated From –40°C to 125°C

2 Applications

• Switch Mode Power Supplies

• DC/DC Converters

• Motor Controllers

• Line Drivers

• Class D Switching Amplifiers

3 Description

The UCC2742x family of high-speed dual MOSFET

drivers can deliver large peak currents into capacitive

loads. Three standard logic options are offered – dualinverting,

dual-noninverting, and one-inverting and

one-noninverting driver. The thermally enhanced 8-

pin PowerPAD™ MSOP package (DGN) drastically

lowers the thermal resistance to improve long-term

reliability. It is also offered in the standard SOIC-8 (D)

or PDIP-8 (P) packages.

Using a design that inherently minimizes shootthrough

current, these drivers deliver 4A of current

where it is needed most at the Miller plateau region

during the MOSFET switching transition. A unique

BiPolar and MOSFET hybrid output stage in parallel

also allows efficient current sourcing and sinking at

low supply voltages.

The UCC2742x provides enable (ENB) functions to

have better control of the operation of the driver

applications. ENBA and ENBB are implemented on

pins 1 and 8 which were previously left unused in the

industry standard pin-out. They are internally pulled

up to VDD for active high logic and can be left open for

standard operation.