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KA5M0765RQCTU 데이터시트(PDF) 1 Page - Fairchild Semiconductor |
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KA5M0765RQCTU 데이터시트(HTML) 1 Page - Fairchild Semiconductor |
1 / 12 page ©2004 Fairchild Semiconductor Corporation www.fairchildsemi.com Rev.1.0.5 Features • Precision Fixed Operating Frequency (70kHz) • Low Start-up Current (Typ. 100 µA) • Pulse by Pulse Current Limiting • Over Load Protection • Over Current Protection • Over Voltage Protection (Min. 25V) • 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 IC. Included PWM controller features integrated fixed frequency oscillator, under voltage lock-out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal shutdown protection, over voltage protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. compared to discrete MOSFET and PWM controller or RCC solution, a Fairchild Power Switch(FPS) can reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in either a flyback converter or a forward converter. TO-220-5L 1. DRAIN 2. GND 3. VCC 4. FB 5. S/S 1 Internal Block Diagram VOF F SE T Sense FET 15V/9V UVLO Vref 2.5R 5uA R 1mA Good Logic INTERNAL BIAS LEB + ++ + - S R Q OSC CLK 7.5V Shutdown Latch Power-on Reset /Auto-restart Rsense ※ LEB : Leading Edge Blanking ※ OCL : Over Current Limit Vcc GND Drain + ++ + - 14V 27V + ++ + - OVP-out OVP S R Q 3 2 1 VCC VREF VOLTAGE LIMIT CIRCUIT OLP OCL (VS=1.4V) TSD (TJ=150℃) OVP-out (VCC=27V) VS 5V Soft Start 5 Feedback 4 KA5M0765RQC Fairchild Power Switch(FPS) |
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