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FSDM1265RB Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FSDM1265RB Datasheet(HTML) 1 Page - Fairchild Semiconductor |
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©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev.1.0.0 FPSTM is a trademark of Fairchild Semiconductor Corporation. Features • Internal Avalanche Rugged Sense FET • Advanced Burst-Mode operation that consumes less than 1 W at 240VAC and 0.5W load • Precision Fixed Operating Frequency (66kHz) • Internal Start-up Circuit • Improved Pulse by Pulse Current Limiting • Over-Voltage Protection (OVP) • Over-Load Protection (OLP) • Internal Thermal Shutdown Function (TSD) • Auto-Restart Mode • Under Voltage Lock Out (UVLO) with Hysteresis • Low Operating Current (2.5mA) • Built-in Soft Start Application • SMPS (Switch Mode Power Supplies) for LCD monitor and STB • Adapter Description The FSDM1265RB is an integrated Pulse-Width Modulator (PWM) and a SenseFET which is specifically designed for high performance offline SMPS with minimal external components. This device is an integrated high-voltage power switching regulator which combines a rugged avalanche 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, and precise current sources that are temperature compensated for loop compensation and self protection circuitry. Compared with discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size, and weight, while simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform which is 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. 4. The junction Temperature can limit the Maximum output power. Typical Circuit Figure 1. Typical Flyback Application OUTPUT POWER TABLE(4) PRODUCT 230VAC ±15%(3) 85-265VAC Adapt- er(1) Open Frame(2) Adapt- er(1) Open Frame(2) FSDM0565RB 60W 70W 50W 60W FSDM0565RBI 60W 70W 50W 60W FSDM07652RB 70W 80W 60W 70W FSDM1265RB 90W 110W 80W 90W Drain Source Vstr Vfb Vcc PWM AC IN DC OUT FSDM1265RB Green Mode Fairchild Power Switch (FPSTM) |
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