{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3899DL15DSER","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3899DL15DSER","canonicalUrl":"https://icboms.com/texas-instruments/TPS3899DL15DSER","factsUrl":"https://icboms.com/api/mcp/products/TPS3899DL15DSER","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3899DL15DSER, nanopower voltage supervisor (Monitor), fixed 1.5V threshold, active-low open-drain output, 619ms typical reset timeout, 6-WSON (1.5x1.5) package, -40°C to 125°C.","salesMarkdown":"## Nanopower supervisor for 1.5V rails The TPS3899DL15DSER is a fixed-threshold voltage monitor from TI's nanopower supervisor family, designed to assert a reset when the monitored rail drops below 1.5V. It draws negligible quiescent current — typical for the series — which makes it a fit for battery-powered or always-on systems where every microamp counts. The output is open-drain, active-low, so it can be wire-ORed with other reset sources or pulled up to a different voltage than the monitored rail. The 619ms typical reset timeout gives the supply time to stabilise after power-up before the processor starts executing. ## Fixed threshold, wide temperature range This part monitors a single voltage with a factory-set threshold of 1.5V — no external resistor divider needed. That makes it a drop-in choice for 1.5V core or I/O rails, but it won't work for a 3.3V or 5V rail without an external divider (which defeats the simplicity).","metaTitle":"TPS3899DL15DSER – TI Nanopower Supervisor, 1.5V Threshold","metaDescription":"Texas Instruments TPS3899DL15DSER nanopower voltage monitor with fixed 1.5V threshold, 619ms reset timeout, -40°C to 125°C range, 6-WSON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Monitor","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":"6-WFDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3899","Voltage - Threshold":"1.5V","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"6-WSON (1.5x1.5)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5400","priceTiers":[{"qty":1,"price":"$1.54000","currency":"USD"},{"qty":10,"price":"$1.37700","currency":"USD"},{"qty":25,"price":"$1.30640","currency":"USD"},{"qty":100,"price":"$1.07320","currency":"USD"},{"qty":250,"price":"$1.00324","currency":"USD"},{"qty":500,"price":"$0.88658","currency":"USD"},{"qty":1000,"price":"$0.69993","currency":"USD"},{"qty":3000,"price":"$0.56277","currency":"USD"},{"qty":6000,"price":"$0.53463","currency":"USD"},{"qty":15000,"price":"$0.51453","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0f049012f0bb7f40ae959ae09941c01c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3899DL15DSER/alternatives.json"},"ai":{"faq":[{"question":"Is the TPS3899DL15DSER a direct replacement for the TLV803EA29VDBZR?","answer":"Both are active-low, open-drain supervisors, but the TPS3899DL15DSER has a fixed 1.5V threshold and a 619ms typical reset timeout, while the TLV803EA29VDBZR has a 2.93V threshold and a 130ms minimum timeout. They are not pin-compatible — the TPS3899 is in a 6-WSON package, the TLV803 in a SOT-23. For a 1.5V rail, the TPS3899DL15DSER is the right choice; the TLV803 is for 2.93V rails."},{"question":"Can the TPS3899DL15DSER monitor a 3.3V rail?","answer":"Not directly — the threshold is fixed at 1.5V. To monitor a 3.3V rail, you would need an adjustable-threshold supervisor or a part with a higher fixed threshold, such as the TLV803EA29VDBZR (2.93V threshold). The TPS3899DL15DSER is intended for 1.5V core or I/O supplies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3899DL15DSER","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3899DL15DSER 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}}