FS7M0880 Datasheet | Fairchild Semiconductor

Features - Pulse by Pulse Current Limit - Over load protection (OLP) - Latch - Over voltage protection (OVP) - Latch - Internal Thermal Shutdown (TSD) - Latch - Under Voltage Lock Out (UVLO) with hysteresis - Internal High Voltage Sense FET (800V rated) - User defined Soft Start - Precision Fixed Operating Frequency (66k Hz) Application - PC power supply - PDP Table 1. Maximum Output Power OUTPUT POWER TABLE PRODUCT 230VAC ±15%(2) Open Frame(1) 85-265VAC Open Frame(1) FS7M0680 80W (Flyback) 150W (Forward) 180W (Forward) (3) 65W (Flyback) 110W (Flyback) 200W (Forward) 250W (Forward) (3) 85W (Flyback) Notes: 1. Maximum practical continuous power in an open frame design at 50°C ambient. 2. 230 VAC or 100/115 VAC with doubler. 3. When the cooling fan is used. Description The Fairchild Power Switch FS7M-series is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external ponents. This device is an integrated high voltage power switching regulator which bine 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, soft start, temperature pensated precise current sources for a loop pensation and self protection circuitry. pared with discrete MOSFET and PWM controller solution, it can reduce total cost, ponent 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 and forward converters. Typical Circuit AC IN FS7M-series S/S VFB Vcc Drain GND Vo Figure 1. Typical Forward Application ©2005 Fairchild Semiconductor Corporation Rev.1.0.2 FS7M0680, FS7M0880 Internal Block...