{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840PL30DBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840PL30DBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840PL30DBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS3840PL30DBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840PL30DBVRQ1, Automotive AEC-Q100, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 3V Threshold, 619 ms Typical Reset Timeout, SOT-23-5, -40°C~125°C","salesMarkdown":"## What the 3V threshold and 619 ms timeout mean for your ECU The TPS3840PL30DBVRQ1 is a Texas Instruments automotive-grade simple reset IC, AEC-Q100 qualified, monitoring a single 3V rail with an active-low, push-pull output. The 3V threshold is set for 3.3V logic supplies — when the rail dips below 3V, the output pulls low and holds the microcontroller in reset for a typical 619 ms after the rail recovers. That 619 ms window is long enough for a bulk capacitor on the 3.3V rail to charge past the threshold before the CPU starts executing, which avoids the classic power-up brown-out glitch that corrupts flash vectors. ## Temperature range and package — board-fit check The SOT-23-5 package is a 5-lead SC-74A variant with 0.95 mm pitch — a straightforward two-layer board can route it, but keep the reset output trace short to avoid coupling noise back into the sense input. It is ROHS3 compliant. No stock-holding claim; quoted per RFQ.","metaTitle":"TPS3840PL30DBVRQ1 – TI Automotive Reset IC, 3V Threshold","metaDescription":"Texas Instruments TPS3840PL30DBVRQ1 – AEC-Q100 qualified simple reset IC, 3V threshold, 619 ms timeout, push-pull output, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Series":"Automotive, AEC-Q100","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":"3V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3100","priceTiers":[{"qty":1,"price":"$1.31000","currency":"USD"},{"qty":10,"price":"$1.17400","currency":"USD"},{"qty":25,"price":"$1.11440","currency":"USD"},{"qty":100,"price":"$0.91540","currency":"USD"},{"qty":250,"price":"$0.85568","currency":"USD"},{"qty":500,"price":"$0.75620","currency":"USD"},{"qty":1000,"price":"$0.59700","currency":"USD"},{"qty":3000,"price":"$0.56321","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/38b6907610defeba97afc045ec167792.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840PL30DBVRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3840PL30DBVRQ1 AEC-Q100 certified?","answer":"Yes, the TPS3840PL30DBVRQ1 is part of the Automotive, AEC-Q100 series, qualified for automotive applications."},{"question":"What is the closest functional second-source for TPS3840PL30DBVRQ1?","answer":"The TLV803EA29VDBZR is a similar simple reset IC with active-low, open-drain output and a 130 ms minimum reset timeout, but it lacks the push-pull output and the 619 ms timeout of the TPS3840PL30DBVRQ1. The TPS3840PL30DBVRQ1 also carries AEC-Q100 qualification, which the TLV803 series does not. Verify output type and reset timeout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840PL30DBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840PL30DBVRQ1 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}}