{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3831K50DQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3831K50DQNR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3831K50DQNR","factsUrl":"https://icboms.com/api/mcp/products/TPS3831K50DQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3831K50DQNR simple reset/power-on reset IC, active-low push-pull output, 4.38V threshold, 120ms minimum reset timeout, -40°C to 85°C, 4-X2SON (1x1mm) package, surface mount.","salesMarkdown":"## 4.38V threshold — this one is for 5V rails Its 4.38V threshold tells you this part monitors a 5V supply rail — it holds the reset output low until the supply comes up and stays above that threshold, then releases after the 120ms timeout. ## Active-low push-pull output — no external pull-up needed The reset output is active low with a push-pull, totem-pole stage. The 120ms minimum reset timeout gives the processor time to stabilize its oscillator and power rails before the reset is released. ## Industrial temp in a 1x1mm package The 4-X2SON package measures 1x1mm, so the PCB footprint is minimal. The exposed pad underneath needs a thermal via or a solid copper pour to the ground plane to keep junction temperature in check, especially if the ambient runs toward the top end.","metaTitle":"TI TPS3831K50DQNR Simple Reset/Power-On Reset","metaDescription":"Texas Instruments TPS3831K50DQNR simple reset IC, active-low push-pull output, 4.38V threshold, 120ms timeout, -40°C to 85°C, 4-X2SON package. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"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":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"120ms Minimum","Package / Case":"4-XDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3831","Voltage - Threshold":"4.38V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"4-X2SON (1x1)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4305","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/171738cafab7c3368a7e7902c6be9c34.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3831K50DQNR/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3831K50DQNR?","answer":"The reset timeout is 120ms minimum. After the supply voltage rises above the 4.38V threshold, the reset output stays low for at least 120ms before going high, giving the processor time to start up cleanly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3831K50DQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3831K50DQNR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}