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TOP202 - Three-terminal Off-line PWM Switch

General Description

The TOPSwitch family implements, with only three pins, all functions necessary for an off-line switched mode control system: high voltage N-channel power MOSFET with controlled turn-on gate driver, voltage mode PWM controller with integrated 100 kHz oscillator, high voltage start-up bias circuit, ba

Key Features

  • Auto-restart and cycle by cycle current limiting functions handle both primary and secondary faults.
  • On-chip latching thermal shutdown protects the entire system against overload Highly Versatile.
  • Implements Buck, Boost, Flyback or Forward topology.
  • Easily interfaces with both opto and primary feedback.
  • Supports continuous or discontinuous mode of operation AC IN DRAIN SOURCE.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® TOP200-4/14 TOPSwitch® Family Three-terminal Off-line PWM Switch Product Highlights Low Cost Replacement for Discrete Switchers • 20 to 50 fewer components - cuts cost, increases reliability • Source-connected tab and Controlled MOSFET turn-on reduce EMI and EMI filter costs • Allows for a 50% smaller and lighter solution • Cost competitive with linears above 5 W Up to 90% Efficiency in Flyback Topology • Built-in start-up and current limit reduce DC losses • Low capacitance 700 V MOSFET cuts AC losses • CMOS controller/gate driver consumes only 6 mW • 70% maximum duty cycle minimizes conduction losses Simplifies Design - Reduces Time to Market • Supported by many reference design boards • Integrated PWM Controller and 700 V MOSFET in a industry standard three pin TO-220 package • Only