1H0280R Datasheet | Fairchild Semiconductor

Features - - - - - - - - - Precision Fixed Operating Frequency KA1M0280RB (67k Hz) , KA1H0280RB (100k Hz) Pulse by Pulse Over Current Limiting Over Load Protection Over Voltage Protection (Min. 23V) Internal Thermal Shutdown Function Under Voltage Lockout Internal High Voltage Sense FET Auto Restart Description The Fairchild Power Switch(FPS) product family is specially designed for an off line SMPS with minimal external ponents. The Fairchild Power Switch(FPS) consist of high voltage power Sense FET 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 pensated precision current sources for loop pensation and fault protection circuit. pared to discrete MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce total ponent 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-220F-4L 1. GND 2. DRAIN 3. VCC 4. FB Internal Block Diagram #3 VCC 32V 5V Vref Good logic OSC 9V 5µA #4 FB 1m A - 2.5R 1R + 7.5V - + 25V - Thermal S/D OVER VOLTAGE S/D + S R L.E.B 0.1V S R Q #1 GND Q Internal bias #2 DRAIN SFET Power on reset Rev.1.0.2 ©2003 Fairchild Semiconductor Corporation .. KA1M0280RB/KA1H0280RB Absolute Maximum Ratings Parameter Maximum Drain Voltage (1) Symbol VD,MAX VDGR VGS IDM EAS IAS ID ID VCC,MAX VFB PD Darting TA TSTG Value 800 800 ±30 8.0 90 8 2.0 1.3 30 -0.3 to VSD 35 0.28 -25 to +85 -55 to +150 Unit V V V ADC m J A ADC ADC V V W W/°C °C °C Drain-Gate Voltage (RGS=1MΩ) Gate-Source (GND) Voltage Drain Current Pulsed (2) Single Pulsed Avalanche Energy (3) Avalanche Current (4) Continuous Drain Current (TC=25°C) Continuous Drain Current (TC=100°C) Maximum...