Texas Instruments' high-power Power-over-Ethernet controller can deliver greater...

Texas Instruments' high-power Power-over-Ethernet controller can deliver
greater than 90 percent efficiency

Integrated PoE Plus controller meets new standard for powered device
applications

DALLAS, May 18 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN)
introduced today a high-efficiency, high-power Power-over-Ethernet (PoE)
controller for 13-watt or 26-watt powered device (PD) applications, such as IP
phones, wireless access points or security cameras. Fully compliant to the
IEEE 802.3at draft 4.0 standard, the integrated TPS23754 supports DC/DC
converter topologies that can achieve higher than 90 percent power conversion
efficiency, which reduces heat and increases reliability of the system. The
single-chip PoE solution leverages a 100-V manufacturing process to provide a
robust solution in a 13-watt or 26-watt design. For product details and to
request samples see: www.ti.com/tps23754-pr.

Along with the TPS23754, TI is sampling the TPS23756 to support auxiliary
input voltages as low as 12 V, allowing a PoE designer to use popular,
inexpensive 12-V wall adapters. Additionally, the TPS23757 will support 13-W
and below applications requiring the higher efficiency DC/DC topologies. Both
the TPS23756 and TPS23757 will be available in the third quarter.

Key features
-- Complementary auxiliary driver with programmable dead-time
-- PD controller supports up to 825-mA continuous current
-- Power source selection priority
-- Current and inrush limit
-- 100-V monolithic SOI process

Key benefits
-- Supports high-efficiency isolated flyback and forward DC/DC converter
topologies
-- Implements IEEE 802.3at (draft 4.0) for PD applications requiring
greater than 13 W
-- Natively supports external, local power sources with or without PoE
power present
-- PD front end protects against current inrush and short circuits
-- Robust manufacturing process withstands voltage surges up to 100 V at
the IC

Availability and pricing
The TPS23754 is available now in a HTSSOP-20 package and is priced at $1.90 in
quantities of 1,000. The TPS23756 will be available in third quarter in the
same quantities and pricing. The TPS23757, also available in third quarter, is
priced at $1.65 in quantities of 1,000.

Find out more about PoE and connect with TI by visiting the links below:
-- See TI PoE portfolio, tools and resources: www.ti.com/poe-pr
-- Get PoE design support on TI E2E Community:
www.ti.com/poecommunity-pr
-- Find TI power management products and tools: www.ti.com/power-pr

-- TI's IP phone solutions: www.ti.com/voip-pr

About Texas Instruments
Texas Instruments (NYSE: TXN) helps customers solve problems and develop new
electronics that make the world smarter, healthier, safer, greener and more
fun. A global semiconductor company, TI innovates through manufacturing,
design and sales operations in more than 25 countries. For more information,
go to www.ti.com

Please refer all reader inquiries to:
Texas Instruments Incorporated
Semiconductor Group, SC-09047
Literature Response Center
14950 FAA Blvd.
Fort Worth, TX 76155
1-800-477-8924

Trademarks
All registered trademarks and other trademarks belong to their respective
owners.

SOURCE Texas Instruments Incorporated

Julie Day of Texas Instruments Incorporated, +1-214-567-4285, jday@ti.com; or
Melissa Cafiero of GolinHarris, +1-972-341-2523, mcafiero@golinharris.com, for
Texas Instruments Incorporated (Please do not publish these numbers or e-mail
addresses.)