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FSCM0765RC
Green Mode Fairchild Power Switch (FPS)
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
DescriptionThe FSCM0765R 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
