TI Introduces Fastest 4-A and 5-A Two-output MOSFET Drivers for Telecom and Server Power Supplies |
Texas Instruments, Inc. (TI)
12500 TI Blvd.
Dallas, TX, 75243-4136
USA
Press release date: January 4, 2012
High-performance MOSFET drivers deliver efficiency and reliability, protecting a power system from 100-V surges
DALLAS - Texas Instruments Incorporated (TI) (NASDAQ: TXN) is expanding its MOSFET driver portfolio with three next-generation two-output gate drivers that improve efficiency and reliability in high-density isolated power supplies.
First 120-V boot high-side/low-side MOSFET driver
The UCC27210 and UCC27211 are the industry's first 120-V boot, high- and low-side, two-output MOSFET drivers to provide up to 4-A output current, while handling -10 volts of direct current (VDC) immunity on the driver inputs. The drivers support multiple high-frequency half-bridge and full-bridge power topologies with an extremely fast 18-nanosecond (ns) propagation delay. The combined features improve efficiency and enhance reliability in telecom, server and industrial power supply designs with 100-V surge requirements. For samples, PSpice transient model and evaluation modules, visit: www.ti.com/ucc27210-pr.
Key technical features of UCC27210 and UCC27211:
o Industry's first 120-V rated, 4-A high- and low-side drivers (TTL and pseudo-CMOS compatible input versions) that drive both N-channel high-side and low-side FETs.
o 0.9 ohm pull-up and pull-down resistance minimizes switching loss as the MOSFET transitions through the Miller Plateau.
o Increased system reliability: Inputs support -10 volts of direct current, and allows direct interface to gate-driver transformers without the need for rectification diodes.
Driving higher currents faster
TI also introduced the industry's fastest 5-A dual-channel low-side driver for secondary-side synchronous rectifier MOSFETs and IGBT power switches. The UCC27524 delivers low pulse distortion and high efficiency with a fast 12-ns propagation delay, 6-ns rise time with 1-ns output delay matching. The driver, which supports 4.5-V to 18-V operating voltages, has the flexibility to combine both outputs to drive up to 10-A applications, such as motor drive systems. For samples, PSpice transient model and evaluation modules, visit: www.ti.com/ucc27524-pr.
Key technical features of UCC27524:
o High-current and high-performance: 5-A peak source and sink drive currents with high efficiency. Support a 4.5-V to 18-V input range. Both outputs can be paralleled for higher current drive.
o Extremely fast: 12-ns typical propagation delay, 6-ns typical rise time with only 1-ns typical output delay matching between two channels.
o Small size: Industry standard 8-pin SOIC and PDIP packages.
Availability and pricing
The UCC27210 and UCC27211 are available in an 8- or 10-pin, 4-mm x 4-mm 8-pin SON and an 8-pin SOIC package. The UCC27524 comes in industry-standard 8-pin SOIC and PDIP packages. A 3-mm x 3-mm, 8-pin WSON will be available later in the first quarter. Suggested resale pricing for the UCC27210/1 is $1.50 in 1,000-unit quantities and $0.70 for the UCC27524.
Find out more about TI's MOSFET gate driver and power supply controller portfolio:
o Portfolio of TI MOSFET Gate Drivers.
o The new UCC27xxx drivers complement TI's leading PWM controllers, such as UCC28250, UCC28950, LM5045, LM5046 and LM5035.
o Download the new Power Stage Designer(TM) switch-mode power supply topology tool.
o TI E2E(TM) Community to ask questions and help solve problems with fellow engineers: www.ti.com/powerforum-pr.
About Texas Instruments
Texas Instruments semiconductor innovations help 80,000 customers unlock the possibilities of the world as it could be - smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do - from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at www.ti.com.
SOURCE Texas Instruments Incorporated
Web Site: http://www.ti.com
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