{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840DL44DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840DL44DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840DL44DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840DL44DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840 series, Simple Reset/Power-On Reset, 1-channel supervisor, 4.4V threshold, active-low open-drain output, 619ms typical reset timeout, SOT-23-5 package, -40°C to 125°C junction temperature.","salesMarkdown":"## 4.4V threshold — the trip point that decides if your rail is healthy The TPS3840DL44DBVR is a single-channel voltage supervisor with a 4.4V threshold. That means it holds the reset line low until the monitored supply crosses above 4.4V, then releases after a 619ms typical timeout. If you are running a 5V rail and need a clean power-on reset for an MCU or FPGA, this part gives you a fixed trip without external resistors. ## Active-low open-drain output — field-swap friendly The reset output is active-low, open-drain. On site, that means you can wire-OR it with other reset sources — no conflict if another supervisor or a manual reset button pulls the line low. The open-drain output also lets you pull up to any voltage up to the absolute max, so it works with 3.3V or 5V logic without a level shifter. For procurement, that means you can plan multi-year builds without a last-time-buy trigger. Sourced per RFQ — lead time and pricing confirmed at quote time. ## SOT-23-5 package — fits a standard footprint The TPS3840DL44DBVR comes in a SC-74A / SOT-23-5 package. That is a five-pin SOT-23 with 0.95mm pitch — easy to hand-solder or rework with a standard iron. No hot-air station needed, no hidden thermal pad. The pinout is straightforward: GND, RESET, VDD, and two no-connect pins.","metaTitle":"TPS3840DL44DBVR — TI Simple Reset/Power-On Reset","metaDescription":"Texas Instruments TPS3840DL44DBVR supervisor IC: 4.4V threshold, active-low open-drain output, 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":"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":"$0.9600","priceTiers":[{"qty":1,"price":"$0.96000","currency":"USD"},{"qty":10,"price":"$0.86100","currency":"USD"},{"qty":25,"price":"$0.81720","currency":"USD"},{"qty":100,"price":"$0.67130","currency":"USD"},{"qty":250,"price":"$0.62756","currency":"USD"},{"qty":500,"price":"$0.55460","currency":"USD"},{"qty":1000,"price":"$0.43784","currency":"USD"},{"qty":3000,"price":"$0.32951","currency":"USD"},{"qty":6000,"price":"$0.30679","currency":"USD"},{"qty":15000,"price":"$0.29543","currency":"USD"},{"qty":30000,"price":"$0.28406","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840DL44DBVR/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3840DL44DBVR a direct replacement for TPS3840DL30DBVR?","answer":"The TPS3840DL44DBVR has a 4.4V threshold, while the TPS3840DL30DBVR has a 3.0V threshold. They are not direct replacements — the trip voltage is different. Check your monitored rail voltage before substituting."},{"question":"What is the output type and reset polarity?","answer":"The output is open-drain, active-low. The reset pin goes low when the supply drops below the threshold and releases high after the timeout when the supply recovers."},{"question":"Is TPS3840DL44DBVR RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840DL44DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840DL44DBVR 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}}