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KA5Q1565RFTU Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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KA5Q1565RFTU Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
1 / 16 page ©2003 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev.1.0.3 Features • Quasi Resonant Converter Controller • Internal Burst Mode Controller for Stand-by Mode • Pulse by Pulse Current Limiting • Over Current Latch Protection • Over Voltage Protection (Vsync: Min. 11V) • Internal Thermal Shutdown Function • Under Voltage Lockout • Internal High Voltage Sense FET • Auto-Restart Mode Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM controller IC. PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over voltage protection, temperature compensated precision current sources for loop compensation and fault protection circuit. compared to discrete MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce total component count, design size, and weight and at the same time increase & efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in quasi resonant converter as C-TV power supply. TO-220F-5L 1. Drain 2. GND 3. VCC 4. FB 5. Sync TO-3PF-5L 1 1 Internal Block Diagram - + Rsense 11V on 12V off 3 1 2 4 VREF Internal BIAS S Q R LEB 450ns S QB R Ro n Rof f Power on Reset OVP OLP 7.5V - + 12V Sync - + - + UVLO 15V/9V 5 Burst Mode 3.5V/1.25V SYNC SYNC SYNC SYNC - + R 2.5R - + - + Offset Thermal Thermal Thermal Thermal Shut Down Shut Down Shut Down Shut Down S Q R Power on Reset (VCC=6.5V) Delay 80ns 1V - + OCL 1V FEEDBACK FEEDBACK FEEDBACK FEEDBACK VCC VCC VCC VCC DRAIN DRAIN DRAIN DRAIN SOURCE SOURCE SOURCE SOURCE Normal Mode 4.6V/2.6V OSC - + - + Idelay Ifb VREF 32V 1% + - Ron Roff KA5Q-SERIES KA5Q0765RT/KA5Q12656RT/KA5Q1265RF/ KA5Q1565RF Fairchild Power Switch(FPS) |
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