TOP222PN - Power Integrations, Inc. - Three-terminal Off-line PWM Switch



Detailed Product Description

Quick Detail:


Three-terminal Off-line PWM Switch





The second generation TOPSwitch-II family is more cost effective and provides several enhancements over the first generation TOPSwitch family. The TOPSwitch-II family extends the power range from 100W to 150W for 100/115/230 VAC input and from 50W to 90W for 85-265 VAC universal input.

This brings TOPSwitch technology advantages to many new applications, i.e. TV, Monitor, Audio amplifiers, etc. Many significant circuit enhancements that reduce the sensitivity to board layout and line transients now make the design even easier. The standard 8L PDIP package option reduces cost in lower power, high efficiency applications. The internal lead frame of this package uses six of its pins to transfer heat from the chip directly to the board, eliminating the cost of a heat sink.

TOPSwitch incorporates all functions necessary for a switched mode control system into a three terminal monolithic IC: power MOSFET, PWM controller, high voltage start up circuit, loop compensation and fault protection circuitry.





• Lowest cost, lowest component count switcher solution

• Cost competitive with linears above 5W

• Very low AC/DC losses – up to 90% efficiency

• Built-in Auto-restart and Current limiting

• Latching Thermal shutdown for system level protection

• Implements Flyback, Forward, Boost or Buck topology

• Works with primary or opto feedback

• Stable in discontinuous or continuous conduction mode

• Source connected tab for low EMI

• Circuit simplicity and Design Tools reduce time to market






TOP221 - 227

Product Photos


Standard Package



Integrated Circuits (ICs)


PMIC - AC DC Converters, Offline Switchers





Output Isolation


Frequency Range

90kHz ~ 110kHz

Voltage - Input


Voltage - Breakdown


Voltage - Output


Power (Watts)


Operating Temperature

-40°C ~ 150°C

Package / Case

8-DIP (0.300", 7.62mm)

Supplier Device Package




Competitive Advantage:


Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .

Why buy from us >>> Fast / Safely / Conveniently

•    SIERRA SUPERIOR ELECTRON LTD is a Stock keeper and trade company of Electronic components .Our branches office include China, Hong Kong, Sigapore , Canada . Offer business, service, resourcing and information for our global member.
•    Goods are ensured the highest quality possible and are delivered to our customers all over the world with speed and precision.


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