Datasheet
UDG-01063
1
OUTA
ENBA
2INA
3GND
7
ENBB8
INVERTING
NON-INVERTING
OUTB
4
5
INVERTING
NON-INVERTING
INB
6 VDD
VDD
UCC27423, UCC27424, UCC27425
www.ti.com
SLUS545D –NOVEMBER 2002–REVISED MAY 2013
Dual 4-A High Speed Low-Side MOSFET Drivers With Enable
Check for Samples: UCC27423, UCC27424, UCC27425
1
FEATURES
DESCRIPTION
The UCC27423/4/5 family of high-speed dual
2
• Industry-Standard Pin-Out
MOSFET drivers can deliver large peak currents into
• Enable Functions for Each Driver
capacitive loads. Three standard logic options are
• High Current Drive Capability of ±4A
offered – dual-inverting, dual-noninverting and one-
inverting and one-noninverting driver. The thermally
• Unique BiPolar and CMOS True Drive Output
enhanced 8-pin PowerPAD™ MSOP package (DGN)
Stage Provides High Current at MOSFET Miller
drastically lowers the thermal resistance to improve
Thresholds
long-term reliability. It is also offered in the standard
• TTL/CMOS Compatible Inputs Independent of
SOIC-8 (D) or PDIP-8 (P) packages.
Supply Voltage
Using a design that inherently minimizes shoot-
• 20ns Typical Rise and 15ns Typical Fall Times
through current, these drivers deliver 4A of current
with 1.8nF Load
where it is needed most at the Miller plateau region
• Typical Propagation Delay Times of 25ns with
during the MOSFET switching transition. A unique
BiPolar and MOSFET hybrid output stage in parallel
Input Falling and 35ns with Input Rising
also allows efficient current sourcing and sinking at
• 4V to 15V Supply Voltage
low supply voltages.
• Dual Outputs Can Be Paralleled for Higher
The UCC27423/4/5 provides enable (ENBL) functions
Drive Current
to have better control of the operation of the driver
• Available in Thermally Enhanced MSOP
applications. ENBA and ENBB are implemented on
PowerPAD™ Package with 4.7°C/W θ
JC
pins 1 and 8 which were previously left unused in the
• Rated From –40°C to 125°C
industry standard pin-out. They are internally pulled
up to Vdd for active high logic and can be left open
for standard operation.
APPLICATIONS
• Switch Mode Power Supplies
BLOCK DIAGRAM
• DC/DC Converters
• Motor Controllers
• Line Drivers
• Class D Switching Amplifiers
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.
2PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2013, 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.