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TOP245YN - Integrated Off-line Switcher

Download the TOP245YN datasheet PDF. This datasheet also includes the TOP247F variant, as both parts are published together in a single manufacturer document.

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

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.

Many new functions are integrated to reduce system cost and improve design flexibility, performance and energy efficiency.

Depending on package type, either 1 or 3 additional pins over the TOPSwitch standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feed-forward/DCMAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and freq

Overview

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.

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.

More Datasheets from Power Integrations

Part Number Description
TOP245Y Integrated Off-line Switcher
TOP245 Integrated Off-line Switcher
TOP245F Integrated Off-line Switcher
TOP245FN Integrated Off-line Switcher
TOP245G Integrated Off-line Switcher
TOP245GN Integrated Off-line Switcher
TOP245P Integrated Off-line Switcher
TOP245PN Integrated Off-line Switcher
TOP245R Integrated Off-line Switcher
TOP242 Integrated Off-line Switcher