{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840DL22DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840DL22DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840DL22DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840DL22DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840DL22DBVR, Power Supply Monitor, 1-channel supervisor, 2.2V threshold, active-low open-drain reset, 619ms timeout, SOT-23-5 package.","salesMarkdown":"## Single-channel supervisor with a 2.2V trip point The TPS3840DL22DBVR is a power supply monitor — a reset supervisor that asserts a reset signal when the monitored voltage drops below 2.2V. It holds the reset output low for 619ms typical after the rail recovers, long enough for most power-good sequences to stabilise.","metaTitle":"TPS3840DL22DBVR Power Supply Monitor – 2.2V Threshold","metaDescription":"Texas Instruments TPS3840DL22DBVR power supply monitor with 2.2V threshold, 619ms reset timeout, open-drain output. Active production, SOT-23-5.","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":"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":"2.2V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2100","priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":10,"price":"$1.08500","currency":"USD"},{"qty":25,"price":"$1.03000","currency":"USD"},{"qty":100,"price":"$0.84600","currency":"USD"},{"qty":250,"price":"$0.79080","currency":"USD"},{"qty":500,"price":"$0.69886","currency":"USD"},{"qty":1000,"price":"$0.55173","currency":"USD"},{"qty":3000,"price":"$0.52050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840DL22DBVR/alternatives.json"},"ai":{"faq":[{"question":"Does TPS3840DL22DBVR require an external pull-up resistor?","answer":"Yes — the reset output is open-drain, so it needs a pull-up resistor to the supervisor's supply rail to pull the output high when the reset is deasserted. Without it, the output floats low."},{"question":"Is TPS3840DL22DBVR a direct replacement for TPS3840DL30DBVR?","answer":"No — the TPS3840DL22DBVR has a 2.2V threshold, while the TPS3840DL30DBVR monitors a 3.0V rail. They are pin-compatible but not drop-in replacements unless your rail voltage matches."},{"question":"What is the difference between TPS3840DL22DBVR and TPS3840DL25DBVR?","answer":"The threshold voltage differs: TPS3840DL22DBVR trips at 2.2V, while the TPS3840DL25DBVR trips at 2.5V. Both are active-low, open-drain supervisors in SOT-23-5 with the same 619ms timeout."},{"question":"When sourcing TPS3840DL22DBVR, what's the closest functional second-source?","answer":"The TLV803EA29VDBZR is a similar active-low, open-drain supervisor from Texas Instruments, but it has a 2.93V threshold and a 130ms minimum reset timeout. Not a pin-for-pin replacement — verify the threshold and timeout against your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840DL22DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840DL22DBVR 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}}