[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-560644-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-560644-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","tl431-programmable-voltage-reference","TL431 - Programmable Voltage Reference","","TL431 is a programmable shunt voltage reference that can be adjusted to an output voltage anywhere from approximately 2.5 V (Vref) up to 36 V using two external resistors. It supports a cathode current operating range of 1 to 100 mA, with a typical dynamic output impedance around 0.22 Ω. The device specifies guaranteed temperature stability across the full operating range, along with voltage precision figures (1% and 2%) and detailed electrical characteristics and pin connections.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/tl431-programmable-voltage-reference/560644/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/tl431-programmable-voltage-reference/560644.png","ImageObject",300,407,{"name":42,"@type":43},"Melati","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-23","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",8,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What output voltage range can the TL431 be programmed for?","Question",{"text":63,"@type":64},"The TL431 output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V using two external resistors.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What is the operating cathode current range and typical dynamic impedance?",{"text":68,"@type":64},"The TL431 operates with cathode current from 1 to 100 mA, with a typical dynamic impedance around 0.22 Ω.",{"name":70,"@type":61,"acceptedAnswer":71},"What are the absolute maximum limits for cathode-to-anode voltage and currents?",{"text":72,"@type":64},"The absolute maximum cathode-to-anode voltage is 37 V, and the absolute reference input current range is specified (including storage temperature limits) according to the device’s absolute maximum ratings table.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},560644,1791818104,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,105,110,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":103,"slug":104},6,50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":97,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":102,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":123,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":143,"read_time":144},962085570644,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","􀁛  \nTL431  \nPROGRAMMABLE VOLTAGE REFERENCE  \n. ADJUSTABLE OUTPUT VOLTAGE :  \n2.5 to 36V  \n. SINK CURRENT CAPABILITY : 1 to 100mA  \n. TYPICAL OUTPUT IMPEDANCE : 0 .22Ω  \n. 1% AND 2% VOLTAGE PRECISION  \nZ  \nTO92  \n(Plastic Package)  \nN  \nDIP8  \n(Plastic Package)  \nDESCRIPTION  \nThe TL431 is a programmable shunt voltage reference with guaranteed temperature stability over the entire temperature range of operation. The output voltage may be set to any value between Vref (approximately 2 .5V) and 36V with two external resistors.  \nThe TL431 operates with a wide current range from 1 to 100mA with a typical dynamic impedance of 0.22Ω .  \nPIN CONNECTIONS  \nD  \nSO8  \n(Batwing Plastic Micropackage)  \nORDER CODES  \nPart number  \nTL431C/AC  \nTL431I/AI  \nTemperature Range  \nZ  \n0oC, +70oC •  \n-40oC, +105oC •  \nPackage  \nN D  \n• •  \n• •  \nTO92  \n(Top view)  \nCathode Anode Reference 1 2 3  \nDIP8  \n(Top view)  \n8 7 6 5  \n1-Cathode  \n2-N.C.  \n3-N.C.  \n4-N.C.  \n5-N.C.  \n6-Anode  \n7-N.C.  \n8-Reference  \nSO8  \n(Top view)  \n8 7 6 5  \n1-Cathode  \n2-Anode  \n3-Anode  \n4-N.C.  \n5-N.C.  \n6-Anode  \n7-Anode  \n8-Reference  \n1 2 3 4 1 2 3 4  \nNovember 1998 1/9  \nTL431  \nABSOLUTE MAXIMUM RATINGS  \nSymbol  \nVKA  \nIK  \nIref To per  \nTstg  \nParameter  \nCathode to Anode Voltage Continuous Cathode Current Range Reference Input Current Range Operating Free-air Temperature Range  \nStorage Temperature Range  \nTL431C/AC  \nTL431I/AI  \nValue  \n37 -100 to +150 -0.05 to +10  \n0 to +70  \n-40 to +105 -65 to +150  \nUnit  \nV  \nmA  \nmA  \noC  \noC  \nOPERATING CONDITIONS  \nSymbol Parameter Value Unit  \nVKA Cathode toAnode Voltage Vref to 36 V  \nIK Cathode Current 1 to 100 mA  \nELECTRICAL CHARACTERISTICS  \nTamb =25oC (unless otherwise specified)  \nSymbol  \nVref  \n∆Vref  \n∆Vref  \n∆VKAIref  \n∆Iref  \nImin  \nIoff |ZKA |  \nTL431C TL431AC  \nParameter Unit  \nMin. Typ. Max. Min. Typ. Max.  \nReference Input Voltage- (figure 1) V  \nVKA = Vref, IK = 10mA Tamb = 25oC 2.44 2.495 2.55 2.47 2.495 2.52  \nTmin. ≤ Tamb ≤ Tmax. 2.423 2.567 2.453 2.537  \nReference Input Voltage Deviation Over mV  \nTemperature Range- (figure 1, note1)  \nVKA = Vref, IK = 10mA, T min. ≤ Tamb ≤ T max. 3 17 3 15  \nRatio of Change in Reference Input Voltage to mV/V  \nChange in Cathode to Anode Voltage- (figure 2)  \nIK = 10mA ∆VKA = 10V to Vref -1.4 -2.7 -1.4 -2.7  \n∆VKA = 36V to 10V -1 -2 -1 -2  \nReference Input Current- (figure 2) µAIK = 10mA, R 1 = 10kΩ, R2 = ∞  \nTamb = 25oC 1.8 4 1.8 4  \nTmin. ≤ Tamb ≤ Tmax. 5.2 5.2  \nReference Input Current Deviation Over µA  \nTemperature Range- (figure 2)  \nIK = 10mA, R 1 = 10kΩ, R2 = ∞ 0.4 1.2 0.4 1.2  \nTmin. ≤ Tamb ≤ Tmax.  \nMinimum Cathode Current for Regulation- (figure 1) mA VKA = Vref 0.5 1 0.5 0.6  \nOff-State Cathode Current- (figure 3) 2.6 1000 2.6 1000 nA  \nDynamic Impedance- (figure 1, note 2) Ω VKA = Vref, ∆IK = 1 to 100mA, f ≤ 1kHz 0.22 0.5 0.22 0.5  \nNotes : 1. ∆Vref is defined as the difference between the maximum and minimum values obtained over the full temperature range.  \n∆Vref = Vref max. -Vref min V ref ma x.  \nVre fmin.  \nTempera ture  \nT1 T2  \n2. The dynamic Impedance is defined as |ZKA| = IKKA  \n2/9  \nTL431  \nELECTRICAL CHARACTERISTICS  \nTamb =25oC (unless otherwise specified)  \nSymbol  \nVref  \n∆Vref  \n∆Vref  \n∆VKAIref  \n∆Iref  \nImin  \nIoff |ZKA |  \nParameter  \nReference Input Voltage- (figure 1)  \nVKA = Vref, IK = 10mA Tamb = 25oC  \nTmin. ≤ Tamb ≤ Tmax.  \nReference Input Voltage Deviation Over Temperature Range- (figure 1, note1)  \nVKA = Vref, IK = 10mA, T min. ≤ Tamb ≤ T max.  \nMin.  \n2.44  \n2.41  \nTL431I  \nTyp.  \n2.495  \n7  \nMax.  \n2.55  \n2.58  \n30  \nTL431AI  \nMin. Typ. Max.  \nUnit  \nV  \n2.47 2.495 2.52  \n2.44 2.55  \nmV  \n7 30  \nRatio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage- (figure 2)  \nIK = 10mA ∆VKA = 10V to Vref  \n∆VKA = 36V to 10V Reference Input Current- (figure 2)  \nIK = 10mA, R 1 = 10kΩ, R2 = ∞ Tamb = 25oC  \nTmin. ≤ Tamb ≤ Tmax.  \nReference Input Current Deviation Over Temperature Range- (figure 2)  \nIK = 10mA, R 1","cbCaiamBBMpv6krw","https://ap.wps.com/l/cbCaiamBBMpv6krw","pdf",95492,"English","# Description\n# Pin Connections\n# Order Codes\n# Absolute Maximum Ratings\n# Operating Conditions\n# Electrical Characteristics\n## Reference Input Voltage\n## Reference Input Current\n## Minimum Cathode Current and Off-State Current\n## Dynamic Impedance\n# Reference Voltage vs Temperature","[{\"question\":\"What output voltage range can the TL431 be programmed for?\",\"answer\":\"The TL431 output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V using two external resistors.\"},{\"question\":\"What is the operating cathode current range and typical dynamic impedance?\",\"answer\":\"The TL431 operates with cathode current from 1 to 100 mA, with a typical dynamic impedance around 0.22 Ω.\"},{\"question\":\"What are the absolute maximum limits for cathode-to-anode voltage and currents?\",\"answer\":\"The absolute maximum cathode-to-anode voltage is 37 V, and the absolute reference input current range is specified (including storage temperature limits) according to the device’s absolute maximum ratings table.\"}]","TL431 - Programmable Voltage Reference | PDF",1791803793,25]