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TOP249R

Power Integrations
Part Number TOP249R
Manufacturer Power Integrations
Description Integrated Off-line Switcher
Published Jul 7, 2006
Detailed Description www.DataSheet4U.com TOP242-250 TOPSwitch -GX Family Extended Power, Design Flexible, ® EcoSmart, Integrated Off-line Sw...
Datasheet PDF File TOP249R PDF File

TOP249R
TOP249R

Overview
www.
DataSheet4U.
com 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 30 W using P package • 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 • Frequency jittering reduces EMI and EMI filtering costs • Regulates to zero load without dummy loading • 132 kHz frequency reduces transformer/power supply size • Half frequency option in Y...


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