Description of ChangesOctober -19981First Issue14-May-20042Stylesheet update. No content change.9/9TDA8145Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequencesof use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is grantedby implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subjectto change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are notauthorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.The ST logo is a registered trademark of STMicroelectronics.All other names are the property of their respective owners 2004 STMicroelectronics - All rights reservedSTMicroelectronics GROUP OF COMP FEATURES SUMMARY LOW DISSIPATION SQUARE GENERATOR FOR PARABOLIC CURRENT SPECIALLY DESIGNED FOR SQUARE C.R.T. CORRECTION EXTERNAL KEYSTONE ADJUSTMENT (symmetry of the parabola) INPUT FOR DYNAMIC FIELD CORRECTION (beam current change) STATIC PICTURE WIDTH ADJUSTMENT PULSE-WIDTH MODULATOR FINAL STAGE D-CLASS WITH ENERGY REDELIVERY PARASITIC PARABOLA SUPPRESSION, DURING FLYBACK TIME OF THE VERTICAL SAWTOOTHDESCRIPTIONThe TDA8145 is a monolithic integrated circuit in a8 pin minidip plastic package designed for use inthe square C.R.T. east-west pin-cushion correc-tion by driving a diode modulator in TV and moni-tor applications.Figure 1. PackageFigure 2. Pin Connections (top view)POWERDIP8(Plastic Package)12348765KEYSTONE CORRECTION INPUTFRAME SAWTOOTH CURRENT INPUTCURRENT REFERENCEGNDNON-INVERTING INPUT 100 A CURRENT SINKPARABOLA OUTPUT INVERTING INPUTOUTPUT+VSTDA81452/9Figure 3. Schematic DiagramTable 1. Absolute Maximum RatingsTable 2. Thermal DataSymbolParameterValueUnitVS Supply Voltage Specifications mentioned in this publication a