{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840DL29DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840DL29DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840DL29DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840DL29DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840DL29DBVR power supply monitor, 2.9V threshold, active-low open-drain output, 619ms typical reset timeout, SOT-23-5 package, -40°C to 125°C operating range.","salesMarkdown":"## 2.9 V threshold supervisor for single-rail monitoring The 619 ms typical reset timeout holds the downstream device in reset long enough for the supply to stabilise after power-up, covering the majority of processor and FPGA power-on sequences without external timing components. ## 619 ms timeout — what it buys the power-up sequence A 619 ms reset timeout means the output stays low for over half a second after the supply crosses the 2.9 V threshold. If your system needs a shorter or longer delay, the TPS3840 family offers other timeout options — this variant is the mid-range choice. ## SOT-23-5 footprint and 125°C junction rating Housed in a SOT-23-5 package (SC-74A), this supervisor occupies minimal board area and is a direct footprint replacement for many industry-standard voltage supervisors.","metaTitle":"TPS3840DL29DBVR Power Supply Monitor, 2.9V Threshold","metaDescription":"TI TPS3840DL29DBVR power supply monitor with 2.9V threshold, active-low open-drain output, 619ms reset timeout. SOT-23-5, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Power Supply Monitor","Reset":"Active Low","Output":"Open Drain or Open Collector","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":"2.9V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840DL29DBVR/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3840DL29DBVR?","answer":"The reset timeout is 619 ms typical. This is the delay from when the monitored voltage rises above the 2.9 V threshold to when the reset output de-asserts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840DL29DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840DL29DBVR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}