Datasheet
1
OUTA
N/C
2INA
3GND
7
N/C8
INVERTING
NON-INVERTING
OUTB
4
5
INVERTING
NON-INVERTING
INB
6 VDD
UCC27323, UCC27324, UCC27325
UCC37323, UCC37324, UCC37325
www.ti.com
SLUS492H –JUNE 2001–REVISED MAY 2013
Dual 4-A Peak High-Speed Low-Side Power-MOSFET Drivers
Check for Samples: UCC27323, UCC27324, UCC27325, UCC37323, UCC37324, UCC37325
1
FEATURES
APPLICATIONS
2
• Industry-Standard Pin-Out
• Switch-Mode Power Supplies
• High Current-Drive Capability of ±4 A at the • DC/DC Converters
Miller Plateau Region
• Motor Controllers
• Efficient Constant-Current Sourcing Even at
• Line Drivers
Low Supply Voltages
• Class D Switching Amplifiers
• TTL/CMOS Compatible Inputs Independent of
Supply Voltage
DESCRIPTION
• 20-ns Typical Rise and 15-ns Typical Fall
The UCC37323/4/5 family of high-speed dual-
Times with 1.8-nF Load
MOSFET drivers deliver large peak currents into
capacitive loads. Three standard logic options are
• Typical Propagation-Delay Times of 25 ns with
offered — dual-inverting, dual-noninverting, and one-
Input Falling and 35 ns with Input Rising
inverting and one-noninverting driver. The thermally
• 4.5-V to 15-V Supply Voltage
enhanced 8-pin PowerPAD MSOP package (DGN)
• Supply Current of 0.3 mA
drastically lowers the thermal resistance to improve
long-term reliability. UCC3732x is also offered in the
• Dual Outputs are Paralleled for Higher Drive
standard SOIC-8 (D) or PDIP-8 (P) packages.
Current
Using a design that inherently minimizes shoot-
• Available in Thermally Enhanced MSOP
through current, these drivers deliver 4-A of current
PowerPAD™ Package with 4.7°C/W θ
JC
where it is needed most at the Miller plateau region
• Rated From –40°C to +125°C
during the MOSFET switching transition. A unique
• TrueDrive™ Output Architecture Using Bipolar
BiPolar and MOSFET hybrid output stage in parallel
and CMOS Transistors in Parallel
also allows efficient current sourcing and sinking at
low supply voltages.
BLOCK DIAGRAM
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, TrueDrive are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2001–2013, 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.