Rugged off-line buck switcher IC survives wide fluctuations in mains
supply
MUNICH--(BUSINESS WIRE)--
Power Integrations (Nasdaq: POWI),
the leader in high-voltage integrated circuits for energy-efficient
power conversion, today introduced its LinkSwitch™-TN2
off-line switcher IC for non-isolated applications with up to 360 mA
output current. The new device, which may be configured as a buck,
buck-boost or a non-isolated flyback converter, delivers high accuracy,
high efficiency and excellent no-load performance. The device
incorporates new safety features including input and output over-voltage
protection and a rugged MOSFET with a 725 V breakdown voltage, offering
robust output short-circuit and over-temperature protection against line
surges and swells. Applications include appliances, HVAC, industrial,
home automation (IOT) and metering systems, particularly those destined
for India and other geographies with challenging power grid stability.
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New LinkSwitch-TN2 Switcher ICs from Power Integrations Deliver High Accuracy in Non-Isolated Off-Line Applications (Photo: Business Wire)
LinkSwitch-TN2
ICs feature voltage regulation of better than -/+ 3%. This high level of
accuracy allows designers to eliminate post regulators, minimizing the
BOM, increasing efficiency and reducing size. The new IC requires just
20 additional components to complete a buck converter, and may be
configured to use off-the-shelf inductors, further reducing cost and
supply chain complexity.
The new devices are very efficient in low-power applications– above 80 %
in 12 V, 120 mA (1.4 W) buck designs for example. LinkSwitch-TN2 designs
typically provide excellent efficiency across the entire load range
while consuming less than 30 mW no-load in a buck arrangement and less
than 10 mW when configured as a non-isolated flyback. This is a key tool
for designers addressing Total Energy Consumption (TEC) regulations,
which prescribe an energy budget limit over a range of operating modes.
LinkSwitch-TN2 efficiency performance enables manufacturers to design
power supplies to meet worldwide product energy-efficiency requirements
from the U.S. DOE, European Commission ErP Ecodesign Directive,
California Energy Commission, ENERGY STAR®, and others.
Comments senior product marketing manager Silvestro Fimiani: “Our LinkSwitch-TN2
off-line converter ICs include a selectable cycle-by-cycle current limit
which allows designers to choose low-cost inductors and capacitors
saving cost and board space, or configure the circuit to output higher
power using optimized external components. The new device’s robust 725 V
MOSFET allows a typical design to easily withstand 1 kV differential
line surges without additional surge suppressors.”
LinkSwitch-TN2
ICs come in three different packages: PDIP-8C, SO-8C, and SMD-8C.
Devices are available now, priced at $0.60 in 10,000-piece quantities.
Information including reference designs is available from the Power
Integrations website at www.power.com/linkswitch-tn2.
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 www.power.com.
Power Integrations, LinkSwitch-TN2, 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/20161108005063/en/
Source: Power Integrations, Inc.