New CHY103D IC optimizes efficiency to prevent handset overheating
during high-speed charging
SAN JOSE, Calif.--(BUSINESS WIRE)--
Power Integrations (Nasdaq: POWI),
the leader in high-voltage integrated circuits for energy-efficient
power conversion, today announced its newest member of the ChiPhy™
charger-interface IC family CHY103D, the first IC for off-line AC-DC
chargers compatible with the Quick Charge (QC) 3.0 protocol from
Qualcomm Technologies, Inc. (Nasdaq: QCOM),
a subsidiary of Qualcomm Inc.
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Used alongside Power Integrations’ InnoSwitch™
AC-DC switcher ICs, the CHY103D
device incorporates all of the functions needed to support QC 3.0. The
QC 3.0 protocol implemented in the CHY103D device substantially reduces
losses in the smart mobile device handset during rapid charging. This
permits system designers to choose to charge handsets faster or reduce
phone touch-temperature during charging, and enhances the efficiency of
the charging process.
The IC improves charging efficiency and reduces heat dissipation by
enabling voltage changes in 200 mV increments instead of the larger
steps (e.g., from 5 volts to 9 or 12 volts) employed in many current
rapid-charging designs. This technique allows the mobile device to
optimize the supply voltage from the offline charger, minimizing losses
in the phone’s internal charge-management system.
CHY103D
includes a wealth of protection features including Adaptive Output
Overvoltage Protection (AOVP), which prevents the output from exceeding
120% of the set output voltage, Output Soft Short-circuit Protection
(OSSP), which detects partial shorts and stops power delivery to prevent
overheating of cable and connector, and a Remote Shutdown Protection
(RESP) feature which enables the powered device to shut the adapter off
remotely if a fault is detected.
The CHY103D
device itself consumes less than 1 mW at 5 V output; in combination with
highly efficient InnoSwitch devices, this low power consumption aids
designers in complying with stringent efficiency requirements for
chargers, such as the upcoming revision to U.S. federal standards for
external power supplies.
Adds Shyam Dujari, director of marketing at Power Integrations: “Fast
charging of mobile devices requires more power than traditional
charging, so the question of how to avoid overheating is a critical
issue. CHY103D
helps solve this challenge by improving charging efficiency. We are
excited to be working alongside Qualcomm Technologies in their efforts
to enhance the utility of mobile devices with Quick Charge 3.0
technology.”
CHY103D
devices are suitable for battery chargers for mobile devices such as
tablets, smartphones, Bluetooth® accessories and various USB power
output ports. It is also compatible with Quick Charge 2.0 products.
Visit http://www.power.com/chy103/
for more information.
About Power Integrations
Power
Integrations, Inc. is a leading innovator in semiconductor
technologies for high-voltage power conversion. The company’s products
are key building blocks in the clean-power ecosystem, enabling the
generation of renewable energy as well as the efficient transmission and
consumption of power in applications ranging from milliwatts to
megawatts. For more information please visit http://www.power.com.
Power Integrations, ChiPhy, InnoSwitch, and EcoSmart and the Power
Integrations logo are trademarks or registered trademarks of Power
Integrations, Inc. All other trademarks are the property of their
respective owner.
View source version on businesswire.com: http://www.businesswire.com/news/home/20150915005823/en/
Source: Power Integrations, Inc.