{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL391BIDBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL391BIDBVR","canonicalUrl":"https://icboms.com/texas-instruments/TL391BIDBVR","factsUrl":"https://icboms.com/api/mcp/products/TL391BIDBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL391BIDBVR general purpose comparator, single element, open-collector/CMOS/MOS/TTL output, SOT-23-5 package, 3V to 36V supply, -40°C to 125°C.","salesMarkdown":"## Supply flexibility and output drive The TL391BIDBVR runs on a single or dual supply from 3 V to 36 V, so it works on a 5 V logic rail, a 12 V industrial bus, or a 24 V battery line without a separate regulator. Its output stage accepts open-collector, CMOS, MOS, or TTL logic levels — the same part drives a microcontroller GPIO or a relay coil through a pull-up resistor. At 18 mA typical output current at 5 V, it can sink enough current to drive an LED indicator or a small optocoupler input directly. ## Temperature range and sensing accuracy Input offset voltage maxes at 2.5 mV at 36 V — tight enough for a window comparator in a battery undervoltage/overvoltage monitor without trimming. Maximum input bias current of 25 nA at 5 V means a 1 MΩ source resistor adds only 25 mV of offset error, preserving accuracy in high-impedance sensor interfaces like thermistors or photodiodes. ## Speed and quiescent budget Maximum quiescent current of 430 µA keeps the power budget low in battery-powered threshold detectors that run continuously. ## Lifecycle and compliance status RoHS3 compliant and free of the six restricted substances plus four phthalates, so it passes EU and California regulatory checks without an exemption.","metaTitle":"Texas Instruments TL391BIDBVR General Purpose Comparator","metaDescription":"Texas Instruments TL391BIDBVR general purpose comparator. Active, RoHS3 compliant. 3V-36V supply, 1µs prop delay, -40°C to 125°C. SOT-23-5. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"General Purpose","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Open-Collector, CMOS, MOS, TTL","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C","Current - Output (Typ)":"18mA @ 5V","Propagation Delay (Max)":"1µs (Typ)","Supplier Device Package":"SOT-23-5","Current - Quiescent (Max)":"430µA","Current - Input Bias (Max)":"0.025µA @ 5V","Voltage - Input Offset (Max)":"2.5mV @ 36V","Voltage - Supply, Single/Dual (±)":"3V ~ 36V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.74","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.74000","currency":"USD"},{"qty":10,"price":"$0.64700","currency":"USD"},{"qty":25,"price":"$0.60800","currency":"USD"},{"qty":100,"price":"$0.49610","currency":"USD"},{"qty":250,"price":"$0.46084","currency":"USD"},{"qty":500,"price":"$0.39220","currency":"USD"},{"qty":1000,"price":"$0.31376","currency":"USD"},{"qty":3000,"price":"$0.28435","currency":"USD"},{"qty":6000,"price":"$0.27750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/071f015ef9d912a042e221b3ca49857e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What output types does TL391BIDBVR support?","answer":"The output stage is compatible with open-collector, CMOS, MOS, and TTL logic levels. A pull-up resistor to the appropriate supply rail selects the logic family."},{"question":"How is TL391BIDBVR supplied and quoted for orders?","answer":"The TL391BIDBVR is an active Texas Instruments part sourced through authorized distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL391BIDBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL391BIDBVR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}