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Renesas Electronics Announces New USB Power Delivery Controller that Implements USB Power Supply for Notebook PCs
|By Business Wire
|June 2, 2014 01:05 PM EDT
Renesas Electronics Corporation (TSE: 6723), a premier supplier of
advanced semiconductor solutions, today announced its new Universal
Serial Bus (USB) Power Delivery (PD) controller (part number µPD720250)
that is based on the USB PD Specification to deliver up to 100W (5 A at
20 V) power over a USB PD cable. Renesas will exhibit its new USB PD
controller at Computex Taipei from June 3 to June 7, 2014 at booth #
N0608, 4th floor of the Nangang exhibition hall in Taipei, Taiwan.
By combining the new USB PD controller with an optimal power supply
circuit, designers will be able to rapidly implement USB-based solutions
that provide higher power to notebook PCs and also can reduce the
battery charging time for smartphones and tablets. Furthermore, by
standardizing the AC adapters provided with notebook PCs and other
equipment, both development costs and design challenges can be reduced.
Smartphones and tablet PCs are demanding increasingly larger power
supplies. To address this market need, the USB PD Specification was
developed by the USB 3.0 Promoter Group in 2012 to allow equipment with
large power requirements, such as notebook PCs, to be powered over a USB
connection. In the USB PD Specification, the connected equipment can
mutually negotiate power supply capacities and requirements and then,
after safety has been verified, the USB circuits can control the power
supply up to 100 W; up from the previous 7.5 W level. The newer 100W
power supply adequately supports high-power consumption equipment and
significantly reduces battery charging times.
Furthermore, the earlier USB power supply was limited to unidirectional
supply from host/hub equipment to peripheral equipment; in the USB PD
Specification, the power supply is bidirectional and power can be sent
in either direction. This is expected to allow the creation of new
applications. For example, at the same time as video is being outputted
on a large-size monitor over a USB connection from a notebook PC, the
USB PD Specification will allow the large-size monitor, which is powered
from the AC power mains, to supply power to the notebook PC, which is
being operated on battery power.
Key features of the new USB PD controller:
(1) Based on the USB PD Specification
µPD720250 USB PD controller is based on the USB PD Specification and in
addition to supporting both the power supply and the power receiving
sides of a USB connection, can flexibly support either role depending on
the actual conditions of operation.
(2) Provision of optimal solutions for all types
The µPD720250 device is capable of control over an
SMBus (Note 1) and can be easily incorporated into tablets and notebook
PCs. It also provides flexible support for external ROM firmware and can
thus implement optimal systems for both the power supply and power
receiving sides. Furthermore, Renesas plans to provide powerful support
for system development by offering solution kits that include both
boards and software for all types of system.
(3) Low-power consumption to support Energy Star
(Note 2) and the EuP Directive (Note 3)
The µPD720250 device
takes advantage of Renesas' low-power technologies for reductions of
both standby and operating power consumption and is appropriate for the
Energy Star and the EuP Directive.
(4) Built-in regulator and compact package
µPD720250 device includes an integrated 1.0 V regulator and can operate
from a single 3.3 V power supply. It is provided in a compact package
and enables lower costs and miniaturization in system construction.
(Note 1) SMBus:
A serial interface specification for connecting the
various components within a personal computer and transmitting the
information necessary for power supply management.
(Note 2) Energy Star:
An environmental labeling system for
energy-saving electrical equipment products promoted by the United
States and operated in Japan, Australia, Canada, the EU, and other
countries and areas.
(Note 3) EuP Directive:
A European Union environment system that
aims at evaluating the environmental burden over the whole product life
cycle and reducing that burden.
Leadership in USB
As a member of the USB Implementers Forum (USB-IF) since 1996, Renesas
(formerly NEC Electronics) has played a leading role both in defining
USB standards and developing USB technology. In April 2000, the company
(then NEC Electronics) launched the world's first USB 2.0-compliant host
controller chip (uPD720100), the world's first USB 2.0-compliant hub
controller chip (uPD720110) and an extensive lineup of other USB
devices. Renesas has earned a reputation for delivering dedicated
customer service and high quality. In May 2009, Renesas (then NEC
Electronics) introduced the industry's first USB 3.0 xHCI host
controller (uPD720200) and earned the first “Certified SuperSpeed USB
(USB 3.0)” certification from the USB-IF. With the robust and compliant
design of uPD720200, Renesas contributed to the USB-IF certification
tests, providing the organization with a host controller product as the
platform for other USB 3.0 peripheral devices to perform
Samples of Renesas Electronics' µPD720250 will be available in July
2014. (Availability is subject to change without notice.)
About Renesas Electronics America Inc.
Renesas Electronics America, Inc., headquartered in Santa Clara,
California, is a wholly owned subsidiary of Renesas Electronics
Corporation (TSE: 6723), the world's number one supplier of
microcontrollers and a premier supplier of advanced semiconductor
solutions including microcontrollers, SoC solutions, and a broad range
of analog and power devices. More information about the products offered
by Renesas Electronics America can be found at http://am.renesas.com/.
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