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This literature is subject to all applicable copyright laws and is not for resale in any manner.www.fairchildsemi.com FSDM0465RB TM Green Mode Fairchild Power Switch (FPS ) Features (4) OUTPUT POWER TABLE Internal Avalanche Rugged SenseFET (3) 230VAC 15% 85-265VAC Advanced Burst-Mode Operation Consumes Under One W at 240VAC & 0.5W Load PRODUCT Adapt- Open Adapt- Open (1) (2) (1) (2) Precision Fixed Operating Frequency (66kHz) er Frame er Frame Internal Start-up Circuit FSDM0465RB 48W 56W 40W 48W Improved Pulse by Pulse Current Limiting FSDM0565RB 60W 70W 50W 60W Over Voltage Protection (OVP) : Auto-Restart FSDM07652RB 70W 80W 60W 70W Over Load Protection (OLP): Auto-Restart Internal Thermal Shutdown (TSD) : Auto-Restart FSDM12652RB 90W 110W 80W 90W Under Voltage Lock Out (UVLO) with Hysteresis Table 1. Maximum Output Power Low Operating Current (2.5mA) Notes: Built-in Soft Start 1. Typical continuous power in a non-ventilated enclosed adapter measured at 50C ambient. Application 2. Maximum practical continuous power in an open frame design at 50C ambient. SMPS for LCD monitor and STB 3. 230 VAC or 100/115 VAC with doubler. Adapter 4. The junction temperature can limit the maximum output power. Related Application Notes AN4137 - Design Guidelines for Off-line Flyback Converters Using Fairchild Power Switch (FPS) AN4140 - Transformer Design Consideration for Off-line Flyback Converters Using Fairchild Power Switch AN4141 - Troubleshooting and Design Tips for Fairchild Typical Circuit Power Switch Flyback Applications AN4148 - Audible Noise Reduction Techniques for FPS Applications AC IN DC Description OUT The FSDM0465RB is an integrated Pulse Width Modulator (PWM) and SenseFET specifically designed for high Vstr Drain performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an PWM integrated high voltage power switching regulator which combines a rugged avalanche, SenseFET with a current mode Vfb Vcc Source 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 Figure 1. Typical Flyback Application compensation and self protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the PWM/ FSDMRB can reduce total cost, component count, size and weigh, while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform well suited for cost-effective designs of flyback converters. TM FPS is a trademark of Fairchild Semiconductor Corporation Rev.1.0.0 2005 Fairchild Semiconductor Corporation