UNISONIC TECHNOLOGIES CO., LTD T78040 LINEAR INTEGRATED CIRCUIT VERTICAL DEFLECTION OUTPUT CIRCUIT DESCRIPTION The UTC T78040 is a monolithic integrated circuit and designed for use in high-definition TV and CRT monitors. It is intended to directly drive the deflection coil. Besides, the T78040 offers a maximum deflection current of 1.8A peak to peak to suitable for small to medium diameter CRTs. FEATURES * Deflection current can be 1.8A peak value * Deflection voltage up to 70V * Flyback generator * Thermal protection circuit * Low cross-over distortion * Supports DC Coupling ORDERING INFORMATION Ordering Number Lead Free Halogen Free T78040L-TB7-T T78040G-TB7-T www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package Packing TO-220Z7 Tube 1 of 5 QW-R121-013.C T78040 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS 7 Non-Inverting input 6 Output stage supply 5 Output 4 Ground 3 Flyback generator 2 Supply voltage 1 Inverting input Tab connected to Pin 4 BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R121-013.C T78040 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA= 25℃) PARAMETER SYMBOL RATINGS UNIT Supply Voltage (pin 2 to Pin4) VCC2 34 V Output Peak Power Supply Voltage (Pin 5 to Pin 4) VCC6 70 V Output Peak Current I5MAX -1.5 ~ +1.5 A Power Dissipation PD 9 W Junction Temperature TJ 150 ℃ Operating Temperature TOPR -20 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 ℃ Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERAML DATA PARAMETER Junction to Case SYMBOL θJC RATINGS 4.0 UNIT °C/W ELECTRICAL CHARACTERISTICS (TA = 25℃, VCC = 24V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Supply Voltage VCC Output Saturated Voltage to GND VS5-4 I5=0.9A Output Saturated Voltage to Supply VS5-6 I5=-0.9A Saturation Voltage on Pin 3 VS3-4 I3 = 20mA Saturation Voltage to Pin 3 (2nd part of flyback) VS3-2 I3 = -0.9A Output Middle Point Voltage VO(MID) Quiescent Current IQ Recommend Biggest Deflect Current I5P-P UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 16 TYP 24 11 35 12 MAX 33 1.3 3.2 1.8 3.0 13 65 1.8 UNIT V V V V V V mA A 3 of 5 QW-R121-013.C T78040 APPLICATION CIRCUITS For AC Coupling (Single Power Supply) +VCC CF 3 6 2 Flyback Generator 7 + 1 - Power Amplifier + - Output Stage 5 Thermal Protection R1 VREF 2.2V Drive Stage Deflection Coil 4 0.22μF R2 CS R3 CL R4 R5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 300 For DC Coupling (Dual Power Supply) 0.47 LINEAR INTEGRATED CIRCUIT 4 of 5 QW-R121-013.C T78040 LINEAR INTEGRATED CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R121-013.C