{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840PL27DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840PL27DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840PL27DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840PL27DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840PL27DBVR, Power Supply Monitor, 2.7V threshold, Active Low reset, Push-Pull output, 619ms typical reset timeout, SOT-23-5, -40°C to 125°C junction","salesMarkdown":"## 2.7V threshold supervisor with 619ms reset timeout The TPS3840PL27DBVR is a single-channel power supply monitor from Texas Instruments that asserts a reset signal when the monitored rail drops below 2.7V. The reset output stays low for 619ms typical after the supply recovers — long enough to let a downstream MCU or SoC complete its power-on reset sequence before the core starts executing code. The push-pull output drives the reset line directly without an external pull-up resistor, saving one component per rail. The output is active low, compatible with most reset input logic. No single-source risk — the part is widely stocked across the distribution network.","metaTitle":"TPS3840PL27DBVR – TI Power Supply Monitor, 2.7V Threshold","metaDescription":"Texas Instruments TPS3840PL27DBVR power supply monitor, 2.7V threshold, 619ms reset timeout, push-pull output, SOT-23-5. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Power Supply Monitor","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"619ms Typical","Package / Case":"SC-74A, SOT-753","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3840","Voltage - Threshold":"2.7V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0100","priceTiers":[{"qty":1,"price":"$1.01000","currency":"USD"},{"qty":10,"price":"$0.90400","currency":"USD"},{"qty":25,"price":"$0.85760","currency":"USD"},{"qty":100,"price":"$0.70460","currency":"USD"},{"qty":250,"price":"$0.65864","currency":"USD"},{"qty":500,"price":"$0.58204","currency":"USD"},{"qty":1000,"price":"$0.45951","currency":"USD"},{"qty":3000,"price":"$0.43350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840PL27DBVR/alternatives.json"},"ai":{"faq":[{"question":"How can I order TPS3840PL27DBVR or check stock?","answer":"Submit an RFQ with your target quantity. The part is active (Texas Instruments, ROHS3 compliant, SOT-23-5 package) and available through our sourcing network. Current pricing and lead time are confirmed at quote time — no stock-holding claim, sourced per order."},{"question":"What is the reset timeout for TPS3840PL27DBVR?","answer":"619ms typical. This is the delay from when the supply crosses the 2.7V threshold to when the reset output de-asserts (goes high). The timeout is fixed internally — no external capacitor needed."},{"question":"Is TPS3840PL27DBVR push-pull or open drain?","answer":"Push-pull (totem pole) output. It drives the reset line high and low without an external pull-up resistor. This is a direct BOM simplification over open-drain alternatives like the TLV803 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840PL27DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840PL27DBVR 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}}