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FSCM0565R Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FSCM0565R Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 20 page ![]() ©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev.1.0.0 Features • Internal Avalanche Rugged Sense FET • Low startup current (max 40uA) • Low power consumption under 1 W at 240VAC & 0.4W load • Precise Fixed Operating Frequency (66kHz) • Frequency Modulation for low EMI • Pulse by Pulse Current Limiting (Adjustable) • Over Voltage Protection (OVP) • Over Load Protection (OLP) • Thermal Shutdown Function (TSD) • Auto-Restart Mode • Under Voltage Lock Out (UVLO) with hysteresis • Built-in Soft Start (15ms) Application • SMPS for VCR, SVR, STB, DVD & DVCD • Adaptor • SMPS for LCD Monitor Description The FSCM0565R is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET with a current mode PWM control block. The PWM controller includes integrated fixed frequency oscillator, under voltage lockout, leading edge blanking (LEB), optimized gate driver, internal soft start, temperature compensated precise current sources for a loop compensation and self protection circuitry. Compared with discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of flyback converters. Table 1. Maximum Output Power Notes: 1. Typical continuous power in a non-ventilated enclosed adapter measured at 50 °C ambient. 2. Maximum practical continuous power in an open frame design at 50 °C ambient. 3. 230 VAC or 100/115 VAC with doubler. Typical Circuit Figure 1. Typical Flyback Application OUTPUT POWER TABLE PRODUCT 230VAC ±15%(3) 85-265VAC Adapt- er(1) Open Frame(2) Adapt- er(1) Open Frame(2) FSCM0565RD 50W 65W 40W 50W FSCM0765RD 65W 70W 50W 60W FSCM0565RC 70W 85W 60W 70W FSCM0765RC 85W 95W 70W 85W Drain GND Vfb Vcc PWM AC IN DC OUT I limit FSCM0565R Green Mode Fairchild Power Switch (FPSTM) |