TI's flyback controller surpasses Energy Star 5 standby power requirements for 10- to 65-W AC adapters

TI's flyback controller surpasses Energy Star 5 standby power requirements for
                           10- to 65-W AC adapters

Accurate quasi-resonant PWM controller achieves less than 10-mW standby power
and eliminates need for cable compensation

PR Newswire

DALLAS, March 19, 2013

DALLAS, March 19, 2013 /PRNewswire/ -- Expanding its line of energy-efficient,
no-load adapter power controllers, Texas Instruments Incorporated (TI)
(NASDAQ: TXN) today announced the industry's first flyback controller that
exceeds Energy Star 5 standby power requirements for 10- to 65-W AC/DC
adapters used with notebooks, motor control, smart meters, micro-inverters and
other high-powered applications. Used in conjunction with TI's award-winning
WEBENCH^® online design tool, the LM5023 flyback controller simplifies and
speeds high-voltage DC/DC designs. For more information, visit:

TI is demonstrating the LM5023 in its booth #109 at the Applied Power
Electronics Conference and Expo (APEC) in Long Beach, Calif.

TI's new LM5023 isolated quasi-resonant pulse-width modulation (PWM)
controller with integrated 700-mA driver offers high efficiency at up to 90
percent, low EMI and less than 10-mW of standby power. The LM5023 provides
1-percent accurate output voltage regulation, eliminating the need for cable
compensation. When coupled with the highly accurate LMV431 shunt reference, it
provides a competitively priced, 1-percent accurate flyback controller system.

Key features and benefits of the LM5023:

  oOne-percent voltage output regulation over line, load and temperature
    eliminates the need for cable compensation.
  oExceeds Energy Star 5 and European Commission 5-Star requirements for
    stand-by power (greater than 30 mW): Operates at low-power skip mode for
    ultra-low stand-by power, or less than 10 mW at 230 Vac. This minimizes
    energy-wasting vampire effect of AC/DC power supplies.
  oQuasi-resonant operation improves efficiency while lowering EMI emission
    versus fixed frequency schemes.
  oIntegrated 700-mA gate driver drives large FETs for higher power outputs
    without additional components.
  oHiccup-mode overload protection  reduces the stress on power components
    during overload conditions, increasing system reliability.
  oCritical conduction mode  results in higher efficiencies, reducing
    switching losses through lower EMI and the use of a less expensive
    rectifier diode.

High-efficiency adapter power

Adapter power products from TI, including the LM5023, UCC28710, UCC28710 and
UCC24610 primary and secondary PWM controllers, provide reliable, efficient,
low-cost power solutions for a wide range of AC/DC charger and adapter
applications. Innovative, high-efficiency power management controllers reduce
both energy consumption and solution size. Universal charge controllers help
designers minimize environmental impact and reduce charging times with
standards compliance. With or without wires, TI solutions provide
best-in-class no load power performance and highest average system efficiency.

Availability and pricing

Samples can be requested today and production quantities of the LM5023 are
expected to be available in the second quarter. Offered in an 8-pin MSOP
package, the LM5023 is priced at US$0.38 in quantities of 1,000.

The LM5023EVM notebook adapter evaluation module is priced at US$49.99 in
1,000-unit quantities and is expected to be available through TI's eStore this
quarter. TI also offers a 3.5-W multi-output adapter reference design, that
generates an isolated 3.3-V output at 200 mA from an input of 100 V to 250 V.

TI analog for industrial

TI is the industrial semiconductor market share leader, providing a diverse
portfolio of analog integrated circuits (ICs) for a broad range of
applications, including Smart Grid, factory automation, high-voltage power,
LED lighting and control. TI data converters, amplifiers, interface,
isolation, clocking, and power management devices enable customers to
differentiate their products, while TI software, design tools and reference
designs simplify and accelerate design cycles. Learn how TI analog products
improve industrial safety, efficiency and reliability at

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

  oCheck out TI's extensive line of adapter power solutions.
  oSee more of TI's isolated power solutions.
  oDesign a complete power management system online with TI's WEBENCH Power
  oSpeed time-to-market with TI's PowerLab™ reference design library,
    including TI's new UCC28710 controller-based 10-W AC Eco-charger for
    tablets and smartphones design.
  oCheck out "Jeff does APEC" live on the Power House blog to keep up with
    trends and topics from the showroom floor.
  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.


WEBENCH is a registered trademark and TI E2E and PowerLab 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; Mary
C. Dunnie, GolinHarris, +1-972-341-2576, mdunnie@golinharris.com
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