{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840PL25DBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840PL25DBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840PL25DBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS3840PL25DBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments, Automotive AEC-Q100 series, Simple Reset/Power-On Reset IC, 2.5V threshold, Active Low reset, Push-Pull output, 619ms typical reset timeout, SOT-23-5 package, -40°C to 125°C junction temperature.","salesMarkdown":"## What the 2.5 V threshold and 619 ms timeout mean for your rail The TPS3840PL25DBVRQ1 monitors a single 2.5 V supply rail and asserts a reset output when the voltage drops below the threshold. The 619 ms typical reset timeout holds the system in reset long enough for the supply to recover from a brownout or for the main regulator to sequence up — common in automotive ECU power-on sequencing where the MCU needs a clean start after the CAN transceiver and sensor supplies settle. The push-pull output drives the reset line directly without an external pull-up resistor, saving one component per rail. Active low reset matches the majority of automotive MCU reset inputs. ## AEC-Q100 qualification and 125 °C junction rating The SOT-23-5 package keeps the footprint small enough for space-constrained ECU boards. The base product number TPS3840 shares the same die and package options across the threshold-voltage family, so a BOM change to a different voltage variant is a straightforward drop-in swap. The part is sourced per RFQ — confirm the BOM quantity and target lead time at quote. No stock-holding claim; availability confirmed at order placement.","metaTitle":"TPS3840PL25DBVRQ1 – TI Automotive Simple Reset/Power-On","metaDescription":"Texas Instruments TPS3840PL25DBVRQ1 – AEC-Q100 qualified simple reset IC with 2.5V threshold, 619ms timeout, push-pull output. Active lifecycle.","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":"2.5V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4300","priceTiers":[{"qty":1,"price":"$1.43000","currency":"USD"},{"qty":10,"price":"$1.27800","currency":"USD"},{"qty":25,"price":"$1.21320","currency":"USD"},{"qty":100,"price":"$0.99650","currency":"USD"},{"qty":250,"price":"$0.93148","currency":"USD"},{"qty":500,"price":"$0.82316","currency":"USD"},{"qty":1000,"price":"$0.64986","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/TPS3840PL25DBVRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3840PL25DBVRQ1 AEC-Q100 qualified?","answer":"Yes, the series is listed as Automotive, AEC-Q100."},{"question":"What is the reset timeout of TPS3840PL25DBVRQ1?","answer":"The typical reset timeout is 619 ms. This duration allows the monitored rail to recover from a transient brownout before the system exits reset."},{"question":"What is the closest functional second-source to TPS3840PL25DBVRQ1?","answer":"The TLV803EA29VDBZR is a similar simple reset IC with active low reset and a 2.93 V threshold, but its output is open-drain (not push-pull) and the minimum reset timeout is 130 ms. The TPS3840PL25DBVRQ1's push-pull output and 619 ms timeout make it a different fit for designs that need no external pull-up and a longer reset hold time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840PL25DBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840PL25DBVRQ1 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}}