Power Integrations Introduces InnoSwitch5 Offline Flyback Switcher IC
31 January 2024 - 1:03AM
Business Wire
Zero-voltage switching (ZVS) flyback topology
and advanced SR FET control enable 95 percent efficiency, reduce
power supply size and component count
Power Integrations (NASDAQ: POWI), the leader in high-voltage
integrated circuits for energy-efficient power conversion, today
announced the release of the InnoSwitch™5-Pro family of
high-efficiency, programmable flyback switcher ICs. The single-chip
switcher achieves over 95 percent efficiency with a novel
secondary-side control scheme which achieves zero-voltage switching
(ZVS) without a dedicated and costly additional high-voltage
switch. The new IC, which features a 750 V or a 900 V PowiGaN™
primary switch, primary-side controller, FluxLink™ isolated
feedback and secondary controller with an I2C interface, optimizes
the design and manufacture of compact, highly efficient single- or
multi-port USB PD adapters. Applications are notebooks, high-end
cellphones and other portable consumer products, including designs
that require the new USB PD EPR (Extended Power Range)
protocol.
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Power Integrations Introduces
InnoSwitch5-Pro Offline Flyback Switcher IC (Photo: Business
Wire)
Adnaan Lokhandwala, senior product marketing manager at Power
Integrations, said: "The combination of ZVS and GaN is power supply
magic. Switching losses vanish, and we can leverage the low
conduction losses of GaN to implement super dense adapter layouts
with far fewer components than asymmetric half-bridge (AHB)
circuits or active clamp alternatives. For example, we have
demonstrated 140 W / 28 V USB PD adapters in 4.2 cubic inches using
only 106 components. The flyback topology used by InnoSwitch5-Pro
ICs is much easier to implement than AHB and can also operate from
universal mains with or without a PFC stage.”
InnoSwitch5-Pro flyback switcher ICs feature lossless input line
voltage sensing on the secondary side for adaptive DCM/CCM and ZVS
control to maximize efficiency and simplify design across line and
load. The ICs also feature a post-production tolerance offset to
facilitate accurate output constant-current (CC) control of better
than two percent to support the UFCS protocol. Excellent efficiency
– better than 95 percent – allows designers to eliminate heat
sinks, spreaders and potting materials for thermal management,
further reducing size, weight, component cost and manufacturing
complexity.
Key markets for the InnoSwitch5-Pro family of flyback switcher
ICs include high-density USB PD 3.1 Extended Power Range (EPR),
UFCS and multi-protocol adapters, notebook adapters and
after-market single- and multi-port chargers and adapters.
Availability &
Resources
Pricing for InnoSwitch5-Pro devices starts at $2.40 for
10,000-unit quantities. For further information, contact a Power
Integrations sales representative or visit power.com.
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, the Power Integrations logo, InnoSwitch and
PowiGaN are trademarks, service marks or registered trademarks of
Power Integrations, Inc. All other trademarks are the property of
their respective owner.
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version on businesswire.com: https://www.businesswire.com/news/home/20240130086519/en/
Media Contact Linda Williams Power Integrations
(408)-414-9837 linda.williams@power.com Press Agency Contact
Nick Foot BWW Communications +44-1491-636 393
nick.foot@bwwcomms.com
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