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PWM Switch, Off-Line, TOPSwitch-II, 85VAC-265VAC, 100 kHz, 700V/100mA out, TO-220-3


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Manufacturer Part No:
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Product Range
TOPSwitch-II Series
Technical Datasheet:
TOP223YN   Datasheet
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Product Range Selector (TOPSwitch-II Series)

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Product Overview

The TOP223YN is a second generation, off line PWM switch in 3 pin TO-220 package. It is a lowest cost and lowest component count switcher solution. Many significant circuit enhancements that reduce sensitivity to board layout and line transients make the design easier. TOPSwitch-II family is more cost effective and provides several enhancements over first generation TOPSwitch family. It incorporates all functions necessary for switched mode control system into three terminal monolithic IC. The TOP223YN has built-in auto restart and current limiting features. It works with primary or opto feedback. The circuit simplicity and design tools reduce time to market. This PWM switch implements flyback, forward, boost or buck topologies. It integrates high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip.
  • Output power of 50W at 100/115/230VAC single voltage input and 30W at 85 to 265VAC wide input
  • Output frequency of 100KHz
  • Duty cycle range from 1.7% to 67%
  • Drain supply voltage of 36V
  • Cost competitive with liners above 5W
  • Very low AC/DC losses and up to 90% efficiency
  • Latching thermal shutdown for system level protection
  • Stable in discontinuous or continuous conduction mode
  • Source connected tab for low EMI
  • Operating junction temperature range from -40°C to 150°C


Consumer Electronics, Portable Devices, Audio, Power Management, Multimedia


Do not plug this device into a hot IC socket during test. External CONTROL pin capacitance may be charged to excessive voltage and cause device damage.

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Boost, Buck, Flyback, Forward



TOPSwitch-II Series


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Technical Documents (1)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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