{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840DL16DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840DL16DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840DL16DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840DL16DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840DL16DBVR, Simple Reset/Power-On Reset, Active Low, Open Drain, 1.6V threshold, 619ms typical timeout, SOT-23-5 package, -40°C to 125°C junction temperature.","salesMarkdown":"## Why a 1.6V threshold and 619ms timeout matter for your processor start-up The TPS3840DL16DBVR monitors a single 1.6V rail and holds the reset output low for 619ms typical after the rail crosses the threshold. That long timeout gives your MCU or SoC time to finish its internal power-on sequence and let the oscillator stabilize before the first instruction fetch. The reset output is active low and open drain, which matches the reset input on most Cortex-M, AVR, and PIC microcontrollers. No external inverter needed — just a pull-up resistor to the supply rail. ## Temperature range and package — where this part fits on the board The SOT-23-5 package is hand-solderable with a fine-tip iron — no hot-air station required, which makes it a good candidate for prototype rework or small-batch builds.","metaTitle":"TPS3840DL16DBVR – TI Simple Reset IC, 1.6V Threshold","metaDescription":"Texas Instruments TPS3840DL16DBVR: Simple Reset/Power-On Reset, Active Low, Open Drain, 1.6V threshold, 619ms timeout, -40°C to 125°C, 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":"Simple Reset/Power-On Reset","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":"1.6V","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":"$1.08100","currency":"USD"},{"qty":25,"price":"$1.02600","currency":"USD"},{"qty":100,"price":"$0.84290","currency":"USD"},{"qty":250,"price":"$0.78792","currency":"USD"},{"qty":500,"price":"$0.69630","currency":"USD"},{"qty":1000,"price":"$0.54971","currency":"USD"},{"qty":3000,"price":"$0.39000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840DL16DBVR/alternatives.json"},"ai":{"faq":[{"question":"Is the TPS3840DL16DBVR active low or active high?","answer":"Active low. The open-drain output pulls low when the monitored voltage drops below the threshold."},{"question":"What package does the TPS3840DL16DBVR come in?","answer":"SOT-23-5 (SC-74A / SOT-753). Five pins, 0.95 mm pitch — hand-solderable with a fine tip."},{"question":"Does the TPS3840DL16DBVR have a direct replacement from another brand?","answer":"The TLV803EA29VDBZR and TLV803ED29DBZR are similar simple reset ICs from TI with different thresholds and timeouts — not pin-for-pin equivalents. Confirm the threshold and timeout match your design before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840DL16DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840DL16DBVR 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}}