{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840DL44DBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840DL44DBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840DL44DBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS3840DL44DBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100 series, TPS3840DL44DBVRQ1, Simple Reset/Power-On Reset, Active Low, Open Drain, 4.4V threshold, 619ms typical timeout, -40°C to 125°C, SOT-23-5 package.","salesMarkdown":"## 4.4V threshold supervisor for 5V rails It monitors a single supply rail and asserts a reset output when the voltage drops below the 4.4V threshold. The reset output is active-low, open-drain, so it can be wire-ORed with other reset sources on the board. The 619ms typical reset timeout holds the system in reset long enough for the supply to stabilise after a brownout, avoiding premature startup into an unsettled rail. Compared to the TLV803EA29VDBZR, which has a 130ms minimum timeout and a 1.0V minimum supply, the TPS3840DL44DBVRQ1 offers a longer 619ms timeout and a fixed 4.4V threshold — better suited for 5V rails where a longer debounce period is needed to filter supply noise. ## Active production, SOT-23-5 package Texas Instruments continues to manufacture this part, so production planning can proceed without obsolescence risk. Supplied in a SOT-23-5 package (SC-74A, SOT-753) with surface-mount mounting. The package footprint is standard for a 5-pin supervisor, making PCB layout straightforward.","metaTitle":"TPS3840DL44DBVRQ1 – 4.4V Threshold, 619ms Reset, AEC-Q100","metaDescription":"Texas Instruments TPS3840DL44DBVRQ1: Simple Reset/Power-On Reset, Active Low, Open Drain, 4.4V threshold, 619ms timeout, -40°C to 125°C, AEC-Q100, SOT-23-5.","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":"Open Drain or Open Collector","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":"4.4V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1900","priceTiers":[{"qty":1,"price":"$1.19000","currency":"USD"},{"qty":10,"price":"$1.06600","currency":"USD"},{"qty":25,"price":"$1.01200","currency":"USD"},{"qty":100,"price":"$0.83140","currency":"USD"},{"qty":250,"price":"$0.77712","currency":"USD"},{"qty":500,"price":"$0.68678","currency":"USD"},{"qty":1000,"price":"$0.54219","currency":"USD"},{"qty":3000,"price":"$0.46050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/38b6907610defeba97afc045ec167792.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840DL44DBVRQ1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy TPS3840DL44DBVRQ1 and how is it quoted?","answer":"The TPS3840DL44DBVRQ1 is available through our distribution channel. As an active Texas Instruments part, we can quote it against your BOM quantity. Submit an RFQ for current pricing and lead time — no stock-holding claim is made here."},{"question":"What is the exact reset timeout of TPS3840DL44DBVRQ1?","answer":"The reset timeout is 619ms typical. This is the time the output stays asserted after the monitored voltage rises above the 4.4V threshold."},{"question":"Is TPS3840DL44DBVRQ1 a suitable replacement for TPS3840DL44?","answer":"The TPS3840DL44DBVRQ1 is the automotive-qualified (AEC-Q100) variant of the base TPS3840DL44. The threshold and timeout are identical; the suffix 'DBVRQ1' indicates the SOT-23-5 package and automotive grade. It is a direct functional replacement in the same footprint, provided the application requires the wider temperature range and qualification."},{"question":"What are the operating conditions for TPS3840DL44DBVRQ1?","answer":"It monitors a single voltage with a 4.4V threshold and provides an active-low, open-drain reset output with a 619ms typical timeout."},{"question":"Does TPS3840DL44DBVRQ1 meet AEC-Q100 automotive qualification?","answer":"Yes, the device is listed as Automotive, AEC-Q100 series, confirming it meets the stress and reliability requirements for automotive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840DL44DBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840DL44DBVRQ1 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}}