FSDM0465RB
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FSDM0465RBWDTU (pdf) |
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FSDM0465RB Green Mode Fairchild Power Switch FPSTM • Internal Avalanche Rugged SenseFET • Advanced Burst-Mode Operation Consumes Under One W at 240VAC & 0.5W Load • Precision Fixed Operating Frequency 66kHz • Internal Start-up Circuit • Improved Pulse by Pulse Current Limiting • Over Voltage Protection OVP Auto-Restart • Over Load Protection OLP Auto-Restart • Internal Thermal Shutdown TSD Auto-Restart • Under Voltage Lock Out UVLO with Hysteresis • Low Operating Current 2.5mA • Built-in Soft Start Application • SMPS for LCD monitor and STB • Adapter 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 Power Switch Flyback Applications • AN4148 - Audible Noise Reduction Techniques for FPS Applications The FSDM0465RB is an integrated Pulse Width Modulator PWM and SenseFET 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 combines a rugged avalanche, SenseFET 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 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. OUTPUT POWER TABLE 4 230VAC ±15% 3 85-265VAC PRODUCT Adapt- Open Adapt- Open er 1 Frame 2 er 1 Frame 2 FSDM0465RB 48W FSDM0565RB 60W FSDM07652RB 70W FSDM12652RB 90W 110W Table Maximum Output Power Notes: Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient. Maximum practical continuous power in an open frame design at 50°C ambient. 230 VAC or 100/115 VAC with doubler. The junction temperature can limit the maximum output power. Typical Circuit AC IN Vstr Drain PWM Source DC OUT Figure Typical Flyback Application FPSTM is a trademark of Fairchild Semiconductor Corporation 2005 Fairchild Semiconductor Corporation FSDM0465RB Internal Block Diagram N.C 5 0.5/0.7V VFB 4 Vcc Vref Idelay Ordering Information Product Number FSDM0465RBWDTU WDTU Forming Type Package TO-220F-6L Forming Marking Code DM0465R BVdss 650V Rds on Max. DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 10/14/05 0.0m 001 2005 Fairchild Semiconductor Corporation |
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