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The bridge-configured vertical driver delivers adjustable output current from 0.5 A (p-p) to 3 A (p-p), with differential input excitation. The design includes a flyback switch, guard output for blanking, and protections covering thermal behavior and short-circuit conditions at output pins and to the supply VP.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dc-coupled-vertical-deflection-circuit-tda8351-product-data-sheet/560765/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/dc-coupled-vertical-deflection-circuit-tda8351-product-data-sheet/560765.png","ImageObject",300,407,{"name":92,"@type":93},"Rizky","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-21","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What applications and operating frequency ranges is TDA8351 designed for?","Question",{"text":112,"@type":113},"TDA8351 is intended for 90° and 110° colour deflection systems with field frequencies from 50 to 120 Hz.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is the vertical output current controlled in the TDA8351 circuit?",{"text":117,"@type":113},"A differential input circuit and an external resistor determine the output current through the deflection coil, with current adjustable from 0.5 A (p-p) to 3 A (p-p) by varying RM.",{"name":119,"@type":110,"acceptedAnswer":120},"What protections and guard features does TDA8351 include?",{"text":121,"@type":113},"The circuit includes thermal protection and short-circuit protection for the output pins, plus a guard output activated during flyback, short-circuit, open loop, and thermal protection activation for blanking the picture tube screen.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},560765,1791907288,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962085564807,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","INTEGRATED CIRCUITS  \nDATA SHEET  \nTDA8351  \nDC-coupled vertical deflection circuit  \nProduct specification Supersedes data of January 1995 File under Integrated Circuits, IC02  \n1999 Sep 27  \nDC-coupled vertical deflection circuit TDA8351  \nFEATURES  \n• Few external components  \n• Highly efficient fully DC-coupled vertical output bridge circuit  \n• Vertical flyback switch  \n• Guard circuit  \n• Protection against:  \n– short-circuit of the output pins (7 and 4)  \n– short-circuit of the output pins to VP  \n• Temperature protection  \n• High EMC immunity because of common mode inputs  \n• A guard signal in zoom mode.  \nGENERAL DESCRIPTION  \nThe TDA8351 is a power circuit for use in 90° and 110° colour deflection systems for field frequencies of 50 to 120 Hz. The circuit provides a DC driven vertical deflection output circuit, operating as a highly efficient class G system.  \nQUICK REFERENCE DATA  \n\n| SYMBOL | PARAMETER | CONDITIONS | MIN. | TYP. | MAX. | UNIT |\n| --- | --- | --- | --- | --- | --- | --- |\n| DC supply |  |  |  |  |  |  |\n| VP | supply voltage |  | 9 | − | 25 | V |\n| Iq | quiescent supply current |  | − | 30 | − | mA |\n| Vertical circuit |  |  |  |  |  |  |\n| IO(p-p) | output current\u003Cbr>(peak-to-peak value) |  | − | − | 3 | A |\n| I diff(p-p) | differential input current (peak-to-peak value) |  | − | 600 | − | µA |\n| V diff(p-p) | differential input voltage (peak-to-peak value) |  | − | 1.5 | 1.8 | V |\n| Flyback switch |  |  |  |  |  |  |\n| IM | peak output current |  | − | − | ± 1.5 | A |\n| VFB | flyback supply voltage |  | − | − | 50 | V |\n|  |  | note 1 | − | − | 60 | V |\n| Thermal data (in accordance with IEC 747-1) |  |  |  |  |  |  |\n| Tstg | storage temperature |  | −55 | − | +150 | °C |\n| Tamb | operating ambient temperature |  | −25 | − | +75 | °C |\n| Tvj | virtual junction temperature |  | − | − | 150 | °C |\n\nNote  \n1. A flyback supply voltage of >50 V up to 60 V is allowed in application. A 220 nF capacitor in series with a 22 Ω resistor (depending on IO and the inductance of the coil) has to be connected between pin 7 and ground. The decoupling capacitor of VFB has to be connected between pin 6 and pin 3 . This supply voltage line must have a resistance of  \n33 Ω (see application circuit Fig.6) .  \n1999 Sep 27 2  \nDC-coupled vertical deflection circuit TDA8351  \nORDERING INFORMATION  \n\n| TYPE NUMBER | PACKAGE |  |  |\n| --- | --- | --- | --- |\n|  | NAME | DESCRIPTION | VERSION |\n| TDA8351 | SIL9P | plastic single-in-line power package; 9 leads | SOT131-2 |\n\nBLOCK DIAGRAM  \n\n| | VP VO(guard)\u003Cbr>\u003Cbr>VFB\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>GND | |\n| --- | --- | --- |\n| Fig.1 Block diagram. |  |  |\n\n1999 Sep 27 3  \nDC-coupled vertical deflection circuit TDA8351  \nPINNING FUNCTIONAL DESCRIPTION  \n\n| SYMBOL | PIN | DESCRIPTION |\n| --- | --- | --- |\n| I drive(pos) | 1 | input power-stage (positive); includes II(sb) signal bias |\n| I drive(neg) | 2 | input power-stage (negative); includes II(sb) signal bias |\n| VP | 3 | operating supply voltage |\n| VO(B) | 4 | output voltage B |\n| GND | 5 | ground |\n| VFB | 6 | input flyback supply voltage |\n| VO(A) | 7 | output voltage A |\n| VO(guard) | 8 | guard output voltage |\n| VI(fb) | 9 | input feedback voltage |\n\n\n| I drive(pos)\u003Cbr>I drive(neg)\u003Cbr>VP\u003Cbr>VO(B)\u003Cbr>GND\u003Cbr>V FB\u003Cbr>VO(A)\u003Cbr>VO(guard)\u003Cbr>VI(fb) | 1 TDA8351 2 3 4 5 6 7 8 9\u003Cbr>\u003Cbr>MBC989 |\n| --- | --- |\n| Metal block connected to substrate pin 5 .\u003Cbr>Metal on back.\u003Cbr>Fig.2 Pin configuration. |  |\n\nThe vertical driver circuit is a bridge configuration. The deflection coil is connected between the output amplifiers, which are driven in opposite phase. An external resistor (RM) connected in series with the deflection coil provides internal feedback information. The differential input circuit is voltage driven. The input circuit has been adapted to enable it to be used with the TDA9150, TDA9151B, TDA9160A, TDA9162, TDA8366 and TDA8376 which deliver symmetrical current signals. An external resistor (RCON) connected between the differential input ","cbCaihASaqccsmCe","https://ap.wps.com/l/cbCaihASaqccsmCe","pdf",94051,17,"English","# Features\n# General Description\n# Quick Reference Data\n## Supply and Output Parameters\n## Flyback Switch and Thermal Data\n# Note on Flyback Supply\n# Ordering Information\n# Block Diagram\n# Pinning and Functional Description\n# Operating Principles and Guard Function\n# Limiting Values","[{\"question\":\"What applications and operating frequency ranges is TDA8351 designed for?\",\"answer\":\"TDA8351 is intended for 90° and 110° colour deflection systems with field frequencies from 50 to 120 Hz.\"},{\"question\":\"How is the vertical output current controlled in the TDA8351 circuit?\",\"answer\":\"A differential input circuit and an external resistor determine the output current through the deflection coil, with current adjustable from 0.5 A (p-p) to 3 A (p-p) by varying RM.\"},{\"question\":\"What protections and guard features does TDA8351 include?\",\"answer\":\"The circuit includes thermal protection and short-circuit protection for the output pins, plus a guard output activated during flyback, short-circuit, open loop, and thermal protection activation for blanking the picture tube screen.\"}]","DC-coupled vertical deflection circuit TDA8351 - Product data sheet | PDF",1791804078,43]