UCC27323, UCC27324, UCC27325
UCC37323, UCC37324, UCC37325
SLUS492B – JUNE 2001 – REVISED SEPTEMBER 2002
DUAL 4 A PEAK HIGH SPEED LOW-SIDE POWER MOSFET DRIVERS
FEATURES
D
Industry-Standard Pin-Out
D
High Current Drive Capability of
±4
A at the
D
D
D
D
D
D
D
D
D
Miller Plateau Region
Efficient Constant Current Sourcing Using a
Unique BiPolar & CMOS Output Stage
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
Supply Current of 0.3 mA
Dual Outputs Can Be Paralleled for Higher
Drive Current
Available in Thermally Enhanced MSOP
PowerPAD
TM
Package with 4.7°C/W
θjc
Rated From –40°C to 85°C
APPLICATIONS
D
Switch Mode Power Supplies
D
DC/DC Converters
D
Motor Controllers
D
Line Drivers
DESCRIPTION
The UCC37323/4/5 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
TM
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 4-A 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.
BLOCK DIAGRAM
INVERTING
N/C 1
8 N/C
INA 2
GND 3
7 OUTA
NON–INVERTING
INVERTING
6 VDD
INB 4
5 OUTB
NON–INVERTING
UDG–01063
PowerPADt is a trademark of Texas Instruments Incorporated.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2002, Texas Instruments Incorporated
www.ti.com
1
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