[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-562201-105":59,"doc-detail-562201-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","tl494-pwm-power-control-circuitry-overview-dead-time-and-output-control","TL494 - PWM Power-Control Circuitry Overview - Dead Time and Output Control","","TL494 integrates complete pulse-width-modulation (PWM) power-control functions on a single chip for power-supply control. It includes two error amplifiers, an adjustable on-chip oscillator, a dead-time control comparator, pulse-steering flip-flop, and output-control circuitry with a stable 5-V 5% regulator reference. The device supports push-pull or single-ended output selection and prevents double pulsing in push-pull mode, with dead time adjustable for total range control.",{"@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/tl494-pwm-power-control-circuitry-overview-dead-time-and-output-control/562201/",{"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/tl494-pwm-power-control-circuitry-overview-dead-time-and-output-control/562201.png","ImageObject",300,407,{"name":92,"@type":93},"SANS","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-23","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What key functions does the TL494 integrate for PWM power control?","Question",{"text":112,"@type":113},"It integrates two error amplifiers, an adjustable oscillator, dead-time control comparator, pulse-steering flip-flop, a 5-V precision regulator, and output-control circuits.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the TL494 select between push-pull and single-ended operation?",{"text":117,"@type":113},"The output-control function selects push-pull or single-ended operation, and the architecture prevents either output from being pulsed twice during push-pull operation.",{"name":119,"@type":110,"acceptedAnswer":120},"What are the typical capabilities of the TL494 regulator reference and dead-time control?",{"text":121,"@type":113},"The internal regulator provides a stable 5-V reference with 5% tolerance, while the dead-time control comparator provides an approximately 5% dead time offset with variable dead time for broader control.","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},562201,1791879814,{"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":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":56,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},962090760505,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","FEATURES  \n• Complete PWM Power-Control Circuitry  \n• Uncommitted Outputs for 200-mA Sink or Source Current  \n• Output Control Selects Single-Ended or Push-Pull Operation  \n• Internal Circuitry Prohibits Double Pulse at Either Output  \n• Variable Dead Time Provides Control Over Total Range  \n• Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance  \n• Circuit Architecture Allows Easy Synchronization  \nD, DB, N, NS, OR PW PACKAGE (TOP VIEW)  \n1IN+  \n1IN−  \nFEEDBACK  \nDTC  \nCT  \nRT  \nGND  \nC1  \n2IN+  \n2IN−  \nREF  \nOUTPUT CTRL V CC  \nC2  \nE2  \nE1  \nDESCRIPTION  \nThe TL494 incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.  \nThe TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.  \nThe error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies.  \nThe uncommitted output transistors provide either common-emitter or emitter-follower output capability. The TL494 provides for push-pull or single-ended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation.  \nThe TL494C is characterized for operation from 0°C to 70°C. The TL494I is characterized for operation from –40°C to 85°C.  \nAVAILABLE OPTIONS  \n\n| TA | PACKAGED DEVICES(1) |  |  |  |  |\n| --- | --- | --- | --- | --- | --- |\n|  | SMALL OUTLINE\u003Cbr>(D) | PLASTIC DIP\u003Cbr>(N) | SMALL OUTLINE\u003Cbr>(NS) | SHRINK SMALL\u003Cbr>OUTLINE\u003Cbr>(DB) | THIN SHRINK\u003Cbr>SMALL OUTLINE\u003Cbr>(PW) |\n| 0°C to 70°C | TL494CD | TL494CN | TL494CNS | TL494CDB | TL494CPW |\n| –40°C to 85°C | TL494ID | TL494IN | — | — | — |\n\n(1) The D, DB, NS, and PW packages are available taped and reeled. Add the suffix R to device type (e.g. , TL494CDR) .  \nPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  \nPRODUCTION DATA information is current as of publication date. Copyright © 1983–2005, Texas Instruments Incorporated  \nProducts conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.  \nFUNCTION TABLE  \n\n| INPUT TO\u003Cbr>OUTPUT CTRL | OUTPUT FUNCTION |\n| --- | --- |\n| VI = GND | Single-ended or parallel output |\n| VI = V ref | Normal push-pull operation |\n\nFUNCTIONAL BLOCK DIAGRAM  \nRT  \nCT  \nDTC  \n1IN+  \n1IN−  \n2IN+  \n2IN−  \nFEEDBACK  \nOUTPUT CTRL  \n16  \n15  \nError Amplifier 2 +  \n−  \n12  \n14  \n7  \n3  \n0.7 mA  \n1D  \n C1  \nReference  \nRegulator  \n(see Function Table)  \nOscillator  \n+  \n−  \nC1  \nE1  \nC2  \nE2  \nV CC  \nREF  \nGND  \n[www.ti.com](www.ti.com)  \nTL494  \nPULSE-WIDTH-MODULATION CONTROL CIRCUITS  \nSLVS074E–JANUARY 1983–REVISED FEBRUARY 2005  \nAbsolute Maximum Ratings (1)  \nover operating free-air temperature range (unless otherwise noted)  \n\n|  |  | MIN MAX | UNIT |\n| --- | --- | --- | --- |\n| V CC Supply voltage(2) |  | 41 | V |\n| VI Amplifier input voltage |  | V CC + 0.3 | V |\n| VO Collector output voltage |  | 41 | V |\n| IO Collector output current |  | 250 | mA |\n| θJA Package thermal impedance(3) (4) | D package | 73 | °C/W |\n|  | DB package | 82 |  |\n|  | N package | 67 |  |\n|  | NS package | 64 |  |\n|  ","cbCait0NjkI19KJF","https://ap.wps.com/l/cbCait0NjkI19KJF","pdf",670971,"English","# Features\n# Description\n# Available Options\n# Function Table\n# Functional Block Diagram\n# Absolute Maximum Ratings\n# Recommended Operating Conditions\n# Electrical Characteristics","[{\"question\":\"What key functions does the TL494 integrate for PWM power control?\",\"answer\":\"It integrates two error amplifiers, an adjustable oscillator, dead-time control comparator, pulse-steering flip-flop, a 5-V precision regulator, and output-control circuits.\"},{\"question\":\"How does the TL494 select between push-pull and single-ended operation?\",\"answer\":\"The output-control function selects push-pull or single-ended operation, and the architecture prevents either output from being pulsed twice during push-pull operation.\"},{\"question\":\"What are the typical capabilities of the TL494 regulator reference and dead-time control?\",\"answer\":\"The internal regulator provides a stable 5-V reference with 5% tolerance, while the dead-time control comparator provides an approximately 5% dead time offset with variable dead time for broader control.\"}]","TL494 - PWM Power-Control Circuitry Overview - Dead Time and Output Control | PDF",1791807997,48]