FSQ0365RN

FAIRCHILD SEMICONDUCTOR  FSQ0365RN  开关模式电源, 15V电源, 55.6 kHz, 700V, DIP-8

The is a Switching Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated pulse-width modulation PWM controller and SenseFET specifically designed for valley switching operation 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 discrete MOSFET and PWM controller solutions, the FSQ-series reduces total cost, component count, size and weight; while simultaneously increasing efficiency, productivity and system reliability. This device provides a basic platform for cost-effective designs of valley switching fly-back converters.

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Optimized for valley switching converter VSC

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Low EMI through variable frequency control and inherent frequency modulation

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High efficiency through minimum voltage switching

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Narrow frequency variation range over wide load and input voltage variation

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Advanced burst-mode operation for low standby power consumption

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Pulse-by-pulse current limit

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Under-voltage lockout UVLO with hysteresis

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Internal startup circuit

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15ms Built-in soft-start