KA2142

www.fairchildsemi.com KA2142C Vertical Deflection Output Circuit Features High output current Pump - up circuit Low dissipation Minimum number of external parts required Direct drive to the deflectin coils Internal thermal shutdown circuit Description The KA2142C is a monolithic linear IC designed for color TV and monitor vertical deflection output. It is intended for direct drive of the deflection coils with a high efficiency. 10-SIP H/S Applications Power Amplifier Thermal Protection Flyback Generator Internal Block Diagram Vcc(L) + + Vcc(H) 2 9 4 FLYBACK GENERATOR Sawtooth IN 1 Vref 10 + - PRE AMP DRIVE STAGE OUTPUT STAGE 6 THERMAL SHUTDOWN D.Y 5 + + Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation KA2142C Pin Assignments C KA2142A 1 2 3 4 5 6 7 Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol Vin ( - ) Vcc(L) F.G GND VO Vcc(H) Vin ( + ) I/O I I O O I I Pin Function Descrition Inverting Input Supply Voltage N.C. Flyback Generator Ground Output N.C. N.C. Output Stage Supply Voltage Non-Inverting Input 2 KA2142C Pin Definitions Pin Number Pin Name Waveform Equivalent Circuit vcc 1 Inverting Input 1 2 Voltage Supply DC - vCC 4 Flyback Generator 4 5 Ground DC - vCC 6 Output Voltage 6 9 Output Stage Voltage Supply Vs 2Vs - vcc 10 Non-Inverting Input DC 10 3 KA2142C Absolute Maximum Rating ( Ta = 25oC ) Parameter Supply Voltage Flyback Peak Voltage Flyback Generator Voltage Input Voltage Peak - to - Peak Output Curre...