{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS389020DSET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS389020DSET","canonicalUrl":"https://icboms.com/texas-instruments/TPS389020DSET","factsUrl":"https://icboms.com/api/mcp/products/TPS389020DSET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS389020DSET, Simple Reset/Power-On Reset, 1-channel supervisor with Active Low, Open Drain output, 2V threshold, 6-WSON (1.5x1.5) package, -40°C to 125°C junction temperature range.","salesMarkdown":"## Rail supervisor for a 2V supply – what the threshold means in practice It monitors a single rail and asserts a reset signal when the voltage drops below the 2V threshold, holding the reset active until the supply recovers above that level. The 2V threshold is fixed—no external resistor divider needed—so it is a direct fit for a 2V core or I/O rail where you want an undervoltage lockout without extra components. ## Output type and reset polarity – open drain, active low The reset output is Active Low with an Open Drain or Open Collector stage. That means the output pulls low when the monitored voltage falls below threshold, and floats high when the rail is good. You supply the pull-up resistor to your logic rail—typically 10 kΩ to 100 kΩ—which allows the reset signal to interface with any logic family voltage without level shifting. The open-drain nature also lets you wire-OR multiple supervisors onto a single reset line if you are monitoring several rails. ## Temperature range and package – where this part lives on the board The package is a 6-WSON (1.5x1.5 mm), supplier device package 6-WSON—this is the small 1.5 mm square leadless package with an exposed pad for thermal relief. For a production BOM, this means you can plan multi-year builds without a forced redesign.","metaTitle":"TPS389020DSET Simple Reset/Power-On Reset, 2V Threshold","metaDescription":"Texas Instruments TPS389020DSET – Simple Reset/Power-On Reset, 2V threshold, Active Low, Open Drain output, 6-WSON package, -40°C to 125°C.","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":"-","Package / Case":"6-WFDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS389020","Voltage - Threshold":"2V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"6-WSON (1.5x1.5)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6300","priceTiers":[{"qty":1,"price":"$2.63000","currency":"USD"},{"qty":10,"price":"$2.36500","currency":"USD"},{"qty":25,"price":"$2.23120","currency":"USD"},{"qty":100,"price":"$1.90110","currency":"USD"},{"qty":250,"price":"$1.78504","currency":"USD"},{"qty":500,"price":"$1.56192","currency":"USD"},{"qty":1250,"price":"$1.29415","currency":"USD"},{"qty":2500,"price":"$1.26300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2d1de5df4cf4f466f5eb966b89cde635.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS389020DSET/alternatives.json"},"ai":{"faq":[{"question":"Does TPS389020DSET have an open drain output?","answer":"Yes, the output is Open Drain or Open Collector, Active Low."},{"question":"Can TPS389020DSET replace a TPS389020DSE?","answer":"The base product number is TPS389020. The 'DSET' suffix indicates the specific package and reel option (6-WSON, Tape & Reel). A TPS389020DSE variant would share the same silicon but may differ in package or packaging—confirm the exact package code against your BOM before substituting."},{"question":"What is the closest functional second-source for TPS389020DSET?","answer":"However, its reset timeout is 130 ms minimum (vs the TPS389020's unspecified timeout), and the threshold is 2.93V, not 2V. Verify your threshold requirement before cross-referencing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS389020DSET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS389020DSET 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}}