Texas Instruments gate drivers target IGBT and SiC FET designs

        Texas Instruments gate drivers target IGBT and SiC FET designs

Single-channel, 2.5-A/5-A gate drivers support renewable energy and industrial
applications, expand TI's portfolio of IGBT and wide band-gap drivers

PR Newswire

DALLAS, Feb. 26, 2013

DALLAS, Feb. 26, 2013 /PRNewswire/ -- Texas Instruments Incorporated (TI)
(NASDAQ: TXN) today introduced the industry's first 35-V, single-channel,
output stage power management gate drivers for insulated-gate bipolar
transistors (IGBTs) and silicon carbide (SiC) FETs. TI's new UCC27531 and
UCC27532 output stage gate drivers with split output provide the most
efficient output drive capability, shortest propagation delay and increased
system protection for isolated power designs, such as solar DC/AC inverters,
uninterruptible power supplies and electric vehicle charging. For more
information and samples, visit: www.ti.com/ucc27531-pr. 

Today's renewable energy applications require power components that safely
deliver more power with greater efficiency. Designers prefer to use IGBTs or
the latest SiC FETs that achieve lower power loss at greater than 400 V. Those
devices also have standoff voltages up to 1,200 volts, and offer lower ON
resistance than equivalent MOSFETs. They are often managed by a TI
microcontroller or dedicated digital power controller, such as the UCD3138.
Next-generation IGBT- and SiC FET-based designs also require both power and
signal isolation from the noisy switching environment of the power stage.

The UCC27531 and UCC27532 prevent the digital controllers from operating too
close to the power circuitry, extending the lifetime of isolated power
designs.

Key features and benefits of the UCC27531:

  oStrong output drive capability: Peak current of 2.5 A source and 5 A sink
    allows fast charging of IGBTs and ensures reliable and efficient
    operation.
  oFastest propagation time: 17 ns typical delay improves driver efficiency.
  oHigh reliability: UVLO settings and rail-to-rail output voltage provide
    system protection.
  oHandles noisy environments: Negative input voltage handling allows the
    driver to support many industrial designs.
  oSystem protection: Split-output configuration improves Miller turn-on
    immunity and prevents damage of IGBT/MOSFET.

Expanding IGBT driver portfolio

The new output stage drivers expand TI's analog and digital controllers that
drive IGBTs. Isolated gate drivers, such as the ISO5500, increase safety and
system performance in high-current and high-voltage designs. The driver also
provides proven reliability of SiO2 dielectric with stability over time,
temperature and moisture. TI also has a large portfolio of single and dual 5-A
high-speed, low-side power management gate drivers, such as the UCC2751x and
UCC2752x families.

Availability and pricing

The UCC27531 and UCC27532 gate drivers are available in a 6-pin, SOT-23
package and are priced at US$0.75 in quantities of 1,000. The UCC27531EVM-184
IGBT driver daughter card evaluation module is priced at US$49 and available
for ordering through TI's eStore. In addition, a PSpice model and application
note 35-V single-channel gate drivers for IGBTs help speed design time.

Find out more about TI's power management and isolated portfolio:

  oReview TI's power supply control portfolio for isolated power designs.
  oCheck out the new 2.5-A isolated gate driver, ISO5500 with over-current
    protection.
  oLearn more about TI's motor drive and control solutions.
  oDesign with 32-bit, real-time control, such as TI's C2000™ Delfino™ and
    Piccolo™ microcontrollers.
  oAsk questions and help solve problems in the Power Forum in the TI E2E™
    Community: www.ti.com/powerforum-pr.

About Texas Instruments

Texas Instruments Incorporated (TI) is a global semiconductor design and
manufacturing company that develops analog ICs and embedded processors.By
employing the world's brightest minds, TI creates innovations that shape the
future of technology.TI is helping more than 100,000 customers transform the
future, today. Learn more at www.ti.com.

Trademarks

TI E2E, C2000, Delfino and Piccolo are trademarks of Texas Instruments. All
registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

Website: http://www.ti.com
Contact: Heather Weir, Texas Instruments, +1-214-479-2143, weir@ti.com; or
Mary C. Dunnie, GolinHarris, +1-972-341-2576, mdunnie@golinharris.com (Please
do not publish these numbers or e-mail addresses.)