DGAP-News: Dialog Semiconductor Plc.: Dialog Semiconductor's Rapid Charge(TM) Technology Supporting Huawei's Proprietary Protocol Sees First Commercial Adoption


DGAP-News: Dialog Semiconductor Plc. / Key word(s): Product
Launch/Miscellaneous
Dialog Semiconductor Plc.: Dialog Semiconductor's Rapid Charge(TM)
Technology Supporting Huawei's Proprietary Protocol Sees First
Commercial Adoption

03.08.2015 / 08:01

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Chipset supporting Fast Charger Protocol (FCP), enhanced by Dialog's
SmartDefender(TM) technology used in Huawei's latest Honor 7 smartphone
model

London UK, 03 August 2015 - Dialog Semiconductor plc (FWB:DLG), a provider
of highly integrated power management, AC/DC power conversion, solid state
lighting (SSL) and Bluetooth(R) Smart technology, today announced that
Huawei's new Honor 7 smartphones use Dialog's iW630+iW1780+iW671 Rapid
Charge adapter chipset to enable Huawei's Fast Charger Protocol (FCP). FCP
is a proprietary protocol from Huawei, designed to charge smartphones and
other mobile devices significantly faster than conventional USB charging
technology. Dialog's iW630+iW1780+iW671 chipset provides very high
efficiency and high power density needed for small form-factor
fast-charging smartphones and mobile device power adapters.

"As a leader in global communications technologies, Huawei continues to
deliver smartphones that enhance the user experience with better design,
smarter functionality and exceptional user experience," said Mr. Zhaoxing
Zhou, Power Management Expert of Huawei Device. "We selected Dialog's
chipset to support our Fast Charger Protocol based on their established
expertise in digital power control to enable lower cost, higher efficiency
and more reliable fast charging power adapters."

"In today's digital world of 'always on' mobile applications, social media
and video streaming, leading manufacturers are quickly delivering
smartphones that address consumer demand for faster charging," said Davin
Lee, Senior Vice President and General Manager of the Power Conversion
Business Group at Dialog. "Dialog is delighted to support Huawei's
innovative Fast Charger Protocol in its latest Honor 7 smartphone,
solidifying our leadership position with an estimated 70% for fast charging
power conversion IC's in China's smartphone market."

The iW630 Rapid Charge interface IC resides on the secondary side of the
AC/DC charger power supply and works with Dialog's iW1780 PrimAccurate(TM)
primary-side digital pulse width modulation (PWM) controller. The iW1780
uses a unique secondary-to-primary digital communication link signal to
receive all rapid charge commands and then dynamically scales the output
voltage regulation and output current limit of the power adapter to deliver
more power through a standard USB cable.

Current sensing is performed by the iW1780 on the primary side, eliminating
the need for a secondary-side current sense resistor for an inherently high
efficiency solution, with the iW671 synchronous rectifier further boosting
efficiency up to 88%.

Soft short circuits in mobile device power supplies can be caused by dirt
in the USB cable or damaged or worn cables and connectors, which can create
excessive heat build-up, resulting in burned or melted charging cables and
damaged mobile devices.

Conventional AC/DC power adapters typically provide protection from
over-current fault events caused by shorts by either turning off the output
voltage and latching it off or by repeatedly cycling the power off and on
(commonly called hiccup) until the fault event is removed. If latchoff
occurs, consumers need to unplug the cable from the AC input and recycle
the power, which can be inconvenient or even perceived as a defective or
failed adapter. With conventional hiccup, PWM switching pulses are sent out
in every power-on-reset (POR) cycle. This kind of cycle-by-cycle hiccup can
result in high average output current from the USB cable and high average
power dissipated in the charger cable and connector. This may generate
excessive heat and can result in the risk of melting or burning the adapter
cable and/or connector.

Instead of continuously attempting restarts in every cycle during a
persistent fault, Dialog's SmartDefender advanced hiccup technology in the
iW1780 controller only sends out the PWM switching pulses in two POR cycles
and then blocks the PWM switching pulses in the next six POR cycles. This
increases the shutdown interval every two cycles, and reduces the average
power delivered to a short circuit by up to 75% without latching off - all
with no added components.

Dialog SmartDefender(TM) video: 
http://iwatt.com/press/image-library/#smartdefender (English)
http://iwatt.com/press/image-library/#smartdefender-cn (Chinese)

‒ ENDS ‒

PrimAccurate is a registered trademark and Rapid Charge is a trademark of
Dialog Semiconductor Inc., an affiliated company of Dialog Semiconductor
plc.

Company Contact:
Lauren Ofstedahl
Dialog Semiconductor
Phone: +1 (408) 845-8518
lauren.ofstedahl@diasemi.com
Web: www.dialog-semiconductor.com
Twitter: @DialogSemi

Media Contact:
Bob Jones
Publitek
Phone: +44 (0) 1225 470000
bob.jones@publitek.com

About Dialog Semiconductor
Dialog Semiconductor provides highly integrated standard (ASSP) and custom
(ASIC) mixed-signal integrated circuits (ICs), optimised for Smartphone,
Tablet, IoT, LED Solid State Lighting (SSL)  and Smart Home applications.
Dialog brings decades of experience to the rapid development of ICs while
providing flexible and dynamic support, world-class innovation and the
assurance of dealing with an established business partner. With world-class
manufacturing partners, Dialog operates a fabless business model and is a
socially responsible employer pursuing many programs to benefit the
employees, community, other stakeholders and the environment we operate in.

Dialog's power saving technologies including DC-DC configurable system
power management deliver high efficiency and enhance the consumer's user
experience by extending battery lifetime and enabling faster charging of
their portable devices. Its technology portfolio also includes audio,
Bluetooth(R) Smart, Rapid Charge(TM) AC/DC power conversion and
multi-touch.

Dialog Semiconductor plc is headquartered in London with a global sales,
R&D and marketing organisation. In 2014, it had approximately $1.16 billion
in revenue and was one of the fastest growing European public semiconductor
companies. It currently has approximately 1,400 employees worldwide. The
company is listed on the Frankfurt (FWB: DLG) stock exchange (Regulated
Market, Prime Standard, ISIN GB0059822006) and is a member of the German
TecDax index.



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Language:    English                                                    
Company:     Dialog Semiconductor Plc.                                  
             Tower Bridge House, St. Katharine's Way                    
             E1W 1AA London                                             
             United Kingdom                                             
Phone:       +49 7021 805-412                                           
Fax:         +49 7021 805-200                                           
E-mail:      jose.cano@diasemi.com                                      
Internet:    www.dialog-semiconductor.com                               
ISIN:        GB0059822006, XS0757015606                                 
WKN:         927200                                                     
Indices:     TecDAX                                                     
Listed:      Regulated Market in Frankfurt (Prime Standard); Regulated  
             Unofficial Market in Berlin, Dusseldorf, Hamburg, Munich,  
             Stuttgart; Luxemburg                                       
 
 
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