SLUS545D – NOVEMBER 2002 – REVISED MAY 2013
Dual 4-A High Speed Low-Side MOSFET Drivers With Enable
Check for Samples:
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FEATURES
Industry-Standard Pin-Out
Enable Functions for Each Driver
High Current Drive Capability of ±4A
Unique BiPolar and CMOS True Drive Output
Stage Provides High Current at MOSFET Miller
Thresholds
TTL/CMOS Compatible Inputs Independent of
Supply Voltage
20ns Typical Rise and 15ns Typical Fall Times
with 1.8nF Load
Typical Propagation Delay Times of 25ns with
Input Falling and 35ns with Input Rising
4V to 15V Supply Voltage
Dual Outputs Can Be Paralleled for Higher
Drive Current
Available in Thermally Enhanced MSOP
PowerPAD™ Package with 4.7°C/W
θ
JC
Rated From –40°C to 125°C
DESCRIPTION
The UCC27423/4/5 family of high-speed dual
MOSFET drivers can deliver large peak currents into
capacitive loads. Three standard logic options are
offered – dual-inverting, 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 shoot-
through 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 UCC27423/4/5 provides enable (ENBL) 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.
BLOCK DIAGRAM
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APPLICATIONS
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Switch Mode Power Supplies
DC/DC Converters
Motor Controllers
Line Drivers
Class D Switching Amplifiers
8
ENBA 1
INVERTING
ENBB
7
INA 2
VDD
NON-INVERTING
INVERTING
GND 3
5
INB 4
NON-INVERTING
6
OUTA
VDD
OUTB
UDG-01063
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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.
PowerPAD is a trademark of Texas Instruments.
Copyright © 2002–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TI [ TEXAS INSTRUMENTS ]
