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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-JX family devices, which enable highly efficient and compact laptop power supplies to be in a sealed enclosure, to withstand high ambient temperatures (e.g., 40 °C), and provide no-load performance <90 mW at 230 VAC.

TOPSwitch-JX is also available in a ultra-low-profile package (eDIP Package), that enables remarkably slim, compact, and lightweight power supplies from 20 to 100 watts.

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Each IC includes a 725 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.


Design Examples

Document Description 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      

Recommended Product Families

IC Product
Family		 Design Guides Typical Circuit
Configuration		 Power/Current
Ratings		 Description
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™ Product family application note. AC Power Supply NA Easy to use device for reducing standby mode power by eliminating power losses from X capacitor discharge resistors
TOPSwitch™-JX
Product family application note. Flyback 12 W to 177 W Integrated Off-Line Switcher with EcoSmart™ Technology for Highly Efficient Power Supplies


Related Design Support Documents

General Design Information
Active Power Factor Correction – Basics
Product Datasheets
AC-DC Selector Guide
Package Information

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