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TOP249 - Integrated Off-line Switcher

Download the TOP249 datasheet PDF. This datasheet also covers the TOP247F variant, as both devices belong to the same integrated off-line switcher family and are provided as variant models within a single manufacturer datasheet.

General Description

TOPSwitch-GX uses the same proven topology as TOPSwitch, cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip.

Key Features

  • eliminate or reduce cost of external components.
  • Fully integrated soft-start for minimum stress/overshoot.
  • Externally programmable accurate current limit.
  • Wider duty cycle for more power, smaller input capacitor.
  • Separate line sense and current limit pins on Y/R/F packages.
  • Line under-voltage (UV) detection: no turn off glitches.
  • Line overvoltage (OV) shutdown extends line surge limit.
  • Line feed-forward with maximum duty cycle (DCMAX.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TOP247F_PowerIntegrations.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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TOP202 Three-terminal Off-line PWM Switch Power Integrations Inc.
TOP202YAI Three-terminal Off-line PWM Switch Power Integrations Inc.
TOP203YAI Three-terminal Off-line PWM Switch Power Integrations Inc.

Other Datasheets by Power Integrations

Part Number Description
TOP249F Integrated Off-line Switcher
TOP249FN Integrated Off-line Switcher
TOP249G Integrated Off-line Switcher
TOP249GN Integrated Off-line Switcher
TOP249P Integrated Off-line Switcher

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.

View original datasheet text
TOP242-250 TOPSwitch®-GX Family Extended Power, Design Flexible, EcoSmart,® Integrated Off-line Switcher Product Highlights Lower System Cost, High Design Flexibility • Extended power range for higher power applications • No heatsink required up to 34 W using P/G packages • Features eliminate or reduce cost of external components • Fully integrated soft-start for minimum stress/overshoot • Externally programmable accurate current limit • Wider duty cycle for more power, smaller input capacitor • Separate line sense and current limit pins on Y/R/F packages • Line under-voltage (UV) detection: no turn off glitches • Line overvoltage (OV) shutdown extends line surge limit • Line feed-forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line • Frequen