DGAP-News: Dialog Semiconductor Plc. / Key word(s): Product Launch
Dialog Semiconductor Plc.: Dialog Semiconductor Collaborates With
Qualcomm Technologies For Higher Efficiency Rapid Smartphone Charging
20.01.2014 / 07:59
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DIALOG SEMICONDUCTOR COLLABORATES WITH QUALCOMM TECHNOLOGIES FOR HIGHER
EFFICIENCY RAPID SMARTPHONE CHARGING
Qualcomm Quick Charge 2.0-compatible AC/DC adapter solution enables up to
88% efficiency for high power density rapid charge power supplies up to 40W
London, UK, 20 January 2014 - Dialog Semiconductor plc (FWB:DLG), a
provider of highly integrated power management, AC/DC, solid state lighting
and short-range wireless technologies, is debuting its high efficiency
AC/DC adapter interface IC for Qualcomm(R) Quick Charge 2.0 power supplies.
The new iW620 rapid charge interface IC resides on the secondary side of
the AC/DC charger power supply and works with Dialog's iW1760
PrimAccurate(TM) primary-side digital pulse width modulation (PWM)
controller. Efficiency as high as 88% enables the higher power density
needed for smaller form-factor fast charging adapters. Quick Charge 2.0 is
a proprietary protocol from Qualcomm Technlogies, Inc., a wholly owned
subsidiary of Qualcomm Incorporated (NASDAQ: QCOM), for charging
smartphones, tablets and other mobile devices up to 75% faster than
conventional USB charging technology.
Dialog's Quick Charge 2.0 rapid charge AC/DC adapter solution delivers high
efficiency up to 83% without the need for a synchronous rectifier as
required by competing solutions. For the ultimate in high power density and
small form factor, Dialog's Quick Charge 2.0 rapid charge solution can be
used with a synchronous rectifier to provide even higher efficiency up to
88%.
The iW620 rapid charge interface IC detects commands from the Quick Charge
2.0-enabled mobile device via the USB cable, then communicates with the
iW1760 PWM primary-side controller and configures the power adapter output
voltage.
Current sensing is performed by the iW1760 on the primary side, eliminating
the need for a secondary-side current sense resistor for an inherently more
efficient solution than competing Quick Charge 2.0 wall charger
approaches. Primary-side current control also enables low cost
implementation of different constant current thresholds for each output
voltage.
The iW620 ensures safe operation with programmable, patented active fast
output voltage discharge from 9V or 12V down to 5V. So, when the USB cable
is unplugged from a Quick Charge 2.0 phone and then used with a non-Quick
Charge 2.0 phone, the iW620 rapidly discharges the output voltage down to
5V, to protect the phone from damage.
'Reducing battery charge time is one of the most compelling trends today
in smartphones,' said Mark Tyndall, Senior VP Corporate Development &
Strategy, GM Power Conversion Business Group at Dialog Semiconductor. 'With
our leadership position in accurate primary-side control in AC/DC power
supplies from our iWatt acquisition, Dialog is excited to debut the first
primary-side regulation solution for Quick Charge 2.0, delivering on our
goal to be an early provider of high power density rapid charge
solutions.'
The iW620 supports Quick Charge 2.0 High Voltage Dedicated Charging Port
(HVDCP) Class A (5V, 9V, 12V output) applications and, with the iW1760
primary-side digital PWM controller, it provides fast voltage transition
and low no-load power consumption of under 100mW. The iW620+iW1760 rapid
charge solution provides comprehensive protection features: adjacent
pin-to-pin short circuit and floating pin protection; built-in fault
protections against output short-circuit, output over-voltage, output
over-current, and current-sense resistor short; output current limit and
over-load protection; and a dedicated pin for external over-temperature and
over-voltage protection.
The iW620 and iW1760 product briefs are available: iW620 Product Brief;
iW1760 Product Brief
Qualcomm Quick Charge 2.0-Compatible AC/DC Adapter Solution Benefits
- Quick Charge 2.0 enables up to 75% faster charge time vs conventional
USB charging
- Supports Quick Charge 2.0 Class A with 5V, 9V, 12V voltage
configurations
- High efficiency: up to 88% efficiency with synchronous rectifier; up to
83% without synchronous rectifier
- Primary-side current control enables low cost implementation of
different constant current thresholds for each output voltage
- Backward compatible with 5V USB BC 1.2 mobile devices
â ENDS â
PrimAccurate is a registered trademark of iWatt Inc., an affiliated company
of Dialog Semiconductor plc. All other trademarks and registered trademarks
are the property of their respective owners.
Company Contact:
Dialog Semiconductor
Lauren Ofstedahl
Phone: +1 (408) 845-8518
lauren.ofstedahl@diasemi.com
Web: www.dialog-semiconductor.com
Twitter: @DialogSemi
Sherry Hill
Dialog Semiconductor
Power Conversion Business Group
Phone: +1 (408) 628-6521
sherry.hill@diasemi.com
Media Contact:
Racepoint Group
Lauren Ginsberg
Phone: +1 (617) 624-3254
lginsberg@racepointgroup.com
About Dialog Semiconductor
Dialog Semiconductor creates highly integrated, mixed-signal integrated
circuits (ICs), optimised for personal portable, low energy short-range
wireless, LED solid state lighting and automotive applications. The company
provides flexible and dynamic support, world-class innovation and the
assurance of dealing with an established business partner.
With its focus and expertise in energy-efficient system power management
and a technology portfolio that also includes audio, short-range wireless,
AC/DC power conversion and multi-touch, Dialog brings decades of experience
to the rapid development of ICs for personal portable and digital consumers
applications, including smartphones, tablets, Ultrabooks(TM) and digital
cordless phones.
Dialog's power management processor companion chips increase the
performance of portable devices by extending battery lifetime, enabling
faster charging and enhancing the consumer's multimedia experience. With
world-class manufacturing partners, Dialog operates a fabless business
model.
Dialog Semiconductor plc is headquartered in London with a global sales,
R&D and marketing organisation. In 2013, it had approximately $910 million
in revenue and was one of the fastest growing European public semiconductor
companies. It currently has approximately 1,100 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. It also has convertible bonds listed on the Euro MTF Market
on the Luxemburg Stock Exchange (ISIN XS0757015606).
End of Corporate News
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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.diasemi.com
ISIN: GB0059822006, XS0757015606
WKN: 927200
Indices: TecDAX
Listed: Regulierter Markt in Frankfurt (Prime Standard);
Freiverkehr in Berlin, Düsseldorf, Hamburg, München,
Stuttgart
End of News DGAP News-Service
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248453 20.01.2014
DGAP-News: Dialog Semiconductor Plc.: Dialog Semiconductor Collaborates With Qualcomm Technologies For Higher Efficiency Rapid Smartphone Charging
| Source: EQS Group AG