Power Integrations offers a broad range of highly integrated, high-voltage ICs for off-line power conversion in major appliance applications. Each IC includes a ≥700 V power MOSFET combined with control and protection circuitry on a single chip. Features include current limiting and thermal shutdown with automatic fault recovery capability to improve reliability, frequency jittering to reduce EMI, and EcoSmart™ technology to dramatically reduce standby energy waste.

LinkSwitch-XT2 is available with 900 V primary MOSFETs for high-quality appliances destined for regions with unstable mains grids, tropical regions with frequent lightning strikes or any area where high-energy ring-waves and surges are prevalent.

Design Examples

Buck/Tapped Buck

Document Description	Design Ideas	Design Example Reports	Reference Design Reports	Reference Design Kits
10 W Non-Isolated Tapped Buck Power Supply usign LinkSwitch-CV
2.37 W Two Output Non-Isolated Cooktop Controller
1.2 W Dual Output Power Supply with Positive or Negative Outputs				RDK-138
White Goods (1.2 W, Non-Isolated, Dual Output Buck Converter)
Air Conditioner (1.44 W, Non-Isolated Buck Converter)
Washing Machine (3 W, Non-Isolated Buck/Boost)
Home Appliance (1.8 W, Non-Isolated Buck/Boost)

Flyback Primary Side Regulation

Document Description	Design Ideas	Design Example Reports	Reference Design Reports	Reference Design Kits
8.4 W Open Frame Power Supply for Appliances Using LinkSwitch-3				RDK-734
17 W Dual Output Flyback Converter
Lossless Generation of AC Zero Crossing and AC Fault/Loss Signals using CAPZero™
2.25 W Cooktop Controller Power Supply

Flyback Secondary Side Regulation

Document Description	Design Ideas	Design Example Reports	Reference Design Reports	Reference Design Kits
15 W Dual Output Power Supply with >83% Standby Efficiency
7 W Wide-Range Input, Dual Output, Non-Isolated Flyback Power Supply using 900 V LinkSwitch-XT2
17. 5 W Dual Output Embedded Power Supply
Dual Output 20 W Embedded Power Supply				RDK-469
<5 mW No-Load Input Power, 8 W Standby Power Supply
20 W Standby Power Supply				RDK-295
High Efficiency 40 W Standby Supply
High Efficiency 30 W Standby Supply
White Goods (1.5 W Non-Isolated Zero Standby Consumption)
100 W Refrigeration Power Supply
Air Conditioner/Condensing Boiler (24 V/2.08 A)
Oven Control (19.3 W 207-400AC Input Flyback)
Dual-Output Cooktop (20 W Flyback)
White Goods (13 W,17.2 W Peak Non-Isolated Flyback)
Refrigerator (12 W Flyback)				RDK-91
Residential Heating Control (9.65 W, FlyBack No Y-Cap)

Other Topologies

Document Description	Design Ideas	Design Example Reports	Reference Design Reports	Reference Design Kits
150 W LLC High-Voltage DC-DC Resonant Converter				RDK-239

Recommended Product Families

IC Product Family	Design Guides	Typical Circuit Configuration	Power/Current Ratings	Description
InnoSwitch™-EP	NA	Flyback	15 to 35 W	Off-Line CV/CC Flyback Switcher IC with Integrated MOSFET, Sync-Rect and Feedback
InnoSwitch3™-EP	NA	Flyback	10 to 45 W	Off-Line CV/CC QR Flyback Switcher IC with Integrated 725 V MOSFET, Synchronous Rectification and FluxLink Feedback
LinkZero™-LP	NA	Flyback	3 W	Zero No-Load Consumption Integrated Off-Line Switcher
TinySwitch™-4	NA	Flyback	5 W to 36.5 W	Energy-Efficient, Off-Line Switcher With Line-Compensated Overload Power
LinkSwitch™-HP	NA	Flyback	9 W to 90 W	Energy Efficient, High-Power Off-Line Switcher with Accurate Primary-Side Regulation (PSR)
LinkSwitch™-3	NA	Flyback	3.5 to 10 W	Energy-Efficient, Accurate Primary-Side Regulation CV/CC Switcher for Adapters and Chargers
HiperLCS™		LLC Half-bridge	Up to 440 W	Integrated LLC power stage incorporating a multi-function controller, high-side and low-side gate drivers, plus two power MOSFETs in a half-bridge configuration
HiperPFS™-4	NA	Boost PFC	110 to 610 W	PFC Controller with Integrated 600 V MOSFET
LinkZero™-AX	NA	Flyback	NA	Integrated offline switching IC that enables designers to achieve 0.00 Watts of standby energy consumption in auxiliary power supplies
SENZero™	NA	AC Power Supply	NA	Simple-to-use device that eliminates significant standby losses by disconnecting unused circuit paths during power-saving modes
CAPZero™-2		AC Power Supply	NA	Easy to use device for reducing standby mode power by eliminating power losses from X capacitor discharge resistors
LinkSwitch™-CV		Flyback	Up to 8.5 W	Tight CV, primary side control, capable of exceeding all energy efficiency specifications
TOPSwitch™-JX		Flyback	12 W to 177 W	Integrated Off-Line Switcher with EcoSmart™ Technology for Highly Efficient Power Supplies
LinkSwitch™-TN2	NA	Buck	Up to 360 mA	Highly Energy Efficient Off-line Switcher IC with Integrated System Level Protection
LinkSwitch™-XT2	NA	Flyback	Up to 9 W	Energy Efficient, Low Power Off-Line Switcher IC With Integrated System Level Protection

Related Design Support Documents

Contact your local Power Integrations Sales Representative or Distributor for assistance.