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Notebook Adapter Applications

Power Integrations offerings include integrated, high-voltage ICs for off-line power conversion in Notebook Adapter power supply applications. Notebook Adapter applications utilize the TOPSwitch-HX family’s largest devices, which enable highly efficient and compact laptop power supplies to be in a sealed enclosure and to withstand ambient temperatures up to 40 °C.

TOPSwitch-HX is also available in a ultra-low-profile package (L Package), that enables remarkably slim, compact, and lightweight power supplies from 20 to 100 watts. The elegance of adapter designs enabled by the new package is demonstrated by a new reference design (DER-196) for a 65 W notebook adapter only slightly larger than a standard deck of playing cards (see pictures below).

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Each IC includes a 700 V power MOSFET with a feature-rich PWM controller in one device. 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.

Typical Product Application Design
Ideas		 Design
Example
Reports 		Engineering
Prototype
Reports		 Reference
Design
Kits
65 W Adapter Using TOP269EG   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Ultra-low Profile (15.4 mm) 65 W Notebook Adapter Using TOP259LN   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
40 W Power Supply Using TOP256EN   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    

Ultra-low Profile (15.4 mm) 65 W Notebook Adapter Using TOP261LN

 Design Ideas are concise two-page documents describing a design for a specific application Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
65 W Notebook Adapter Using TOP258EN
(Highest Efficiency, Lowest Cost Design)		 Design Ideas are concise two-page documents describing a design for a specific application Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Standard 65 W Notebook Adapter Using TOP259EN Design Ideas are concise two-page documents describing a design for a specific application      

Product Families Used in These Applications

IC Product
Family		 Typical Circuit
Configuration		 Power/Current
Ratings		 Description
TOPSwitch®-JX
Flyback 12 W to 177 W Integrated Off-Line Switcher with EcoSmart® Technology for Highly Efficient Power Supplies
TOPSwitch®-HX Flyback Up to 254 W
Incorporates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.

Related Design Support Documents

General Design Information Design Guides
Product Datasheets AN-47 TOPSwitch-JX Design Guide
AC-DC Selector Guide AN-43 TOPSwitch-HX Design Guide
Package Information    
Contact your local Power Integrations Sales Representative or Distributor for assistance.