UCC27423-Q1
UCC27424-Q1
UCC27425-Q1
www.ti.com
SGLS274D –SEPTEMBER 2008–REVISED AUGUST 2011
DUAL 4-A HIGH-SPEED LOW-SIDE MOSFET DRIVERS WITH ENABLE
Check for Samples: UCC27423-Q1, UCC27424-Q1, UCC27425-Q1
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FEATURES
DESCRIPTION
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Qualified for Automotive Applications
The UCC2742x high-speed dual MOSFET drivers
can deliver large peak currents into capacitive loads.
Two standard logic options are offered – dual
inverting and dual noninverting drivers. They are
offered in the standard SOIC-8 (D) package.
Industry-Standard Pinout
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
Using
a
design that inherently minimizes
shoot-through current, these drivers deliver 4-A
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.
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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
The UCC2742x provide 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 pinout. They are internally pulled up
to VDD for active-high logic and can be left open for
standard operation.
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4-V to 15-V Supply Voltage
Dual Outputs Can Be Paralleled for Higher
Drive Current
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Rated From –40°C to 125°C
APPLICATIONS
Figure 1. BLOCK DIAGRAM
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Switch Mode Power Supplies
DC/DC Converters
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ENBB
ENBA
1
Motor Controllers
INVERTING
Line Drivers
7
6
OUTA
VDD
Class D Switching Amplifiers
VDD
INA
2
3
NONINVERTING
INVERTING
GND
5
OUTB
INB
4
NONINVERTING
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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.
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