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A Quasi-Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to a conventional hard-switched converter with a fixed switching frequency. Therefore, a QRC is well suited for noise-sensitive applications, such as color TV and audio. Each product in the FSCQ series contains an integrated Pulse Width Modulation (PWM) controller and a SenseFET. This series is specifically designed for quasi-resonant off-line Switch Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed frequency oscillator, under-voltage lockout, leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSCQ series can reduce total cost, component count, size, and weight; while increasing efficiency, productivity, and system reliability. These devices provide a basic platform for cost-effective designs of quasi-resonant switching flyback converters.
| FSCQ0565RT Datasheet |
| Product | Product & Eco Status | Unit Price/1K Order | Packing Method Convention | Package Marking Convention* |
|---|---|---|---|---|
| FSCQ0565RTYDTU | Full Production Green as of Oct 2010 China RoHS | $1.3 | TO-220F 5L
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4.7 x 10.16 x 15.87mm,
RAIL
| Line 1$Y (Fairchild logo) &Z (Plant Code) &3 (3-Digit Date Code) &K
Line 2CQ0565RT |