FSCQ1565RTYDTU

PWM 控制器，Fairchild Semiconductor### 离线和隔离直流-直流控制器，Fairchild Semiconductor回扫控制器、线路电平控制 LLC 控制器和初级侧调节控制器显著节能，以满足开关模式电源 SMPS 设计的需要。 所有控制器随附集成软启动和过压、开口反馈、过载、输出短路、过电流、电压中断和欠压闭锁功能。

The is a 650V Integrated Power Switch for 170W offline flyback converters. 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 colour 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.

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Optimized for Quasi-Resonant Converter QRC

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Advanced burst-mode operation for under 1W standby power consumption

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Pulse-by-pulse current limit

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Overload protection OLP - Auto restart

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Overvoltage protection OVP - Auto restart

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Abnormal Over-current Protection AOCP - Latch

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Internal thermal shutdown TSD - Latch

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Under-voltage lockout UVLO with hysteresis

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Low start-up current of 25µA typical

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Internal high voltage SenseFET

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Built-in soft-start 20ms

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Extended quasi-resonant switching

ESD sensitive device, take proper precaution while handling the device.