{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3617-50DGKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3617-50DGKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3617-50DGKR","factsUrl":"https://icboms.com/api/mcp/products/TPS3617-50DGKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3617-50DGKR battery backup supervisor IC, active-low push-pull reset, 4.55 V threshold, 60 ms reset timeout, -40°C to 85°C, 8-VSSOP package, Tape & Reel.","salesMarkdown":"## Battery backup supervisor for 5 V rails The Texas Instruments TPS3617-50DGKR is a battery backup supervisor IC that monitors a single 5 V supply and switches to a backup battery when the main rail drops below the 4.55 V threshold. Its active-low, push-pull reset output holds the target device in reset for a minimum of 60 ms after the supply returns above the threshold, giving the system time to stabilise. Typical applications include SRAM backup, RTC hold-up, and microcontroller power-fail detection in industrial and telecom equipment where a clean reset and seamless battery switchover are required. The 4.55 V threshold is set for a nominal 5 V rail with a typical tolerance of ±10 %. A supervisor with a lower threshold (e.g., 4.40 V) would allow the rail to droop further before asserting reset, which may be acceptable for some 5 V logic but risks data corruption in SRAM backup scenarios. The 60 ms minimum reset timeout is long enough to cover most power-supply ramp-up and oscillator start-up delays, but if the system uses a large output capacitor on the 5 V rail, verify that the timeout does not expire before the rail is fully settled — a supervisor with a longer timeout may be needed.","metaTitle":"TPS3617-50DGKR Battery Backup Circuit, Active-Low Reset","metaDescription":"Texas Instruments TPS3617-50DGKR battery backup supervisor IC with 4.55 V threshold, active-low push-pull reset, 60 ms timeout.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Battery Backup Circuit","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Reset Timeout":"60ms Minimum","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3617","Voltage - Threshold":"4.55V","Operating Temperature":"-40°C~85°C(TJ)","Supplier Device Package":"8-VSSOP","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5825","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b94f173724737950b63ddf5a42a7cec9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3617-50DGKR/alternatives.json"},"ai":{"faq":[{"question":"Is the TPS3617-50DGKR still active or obsolete?","answer":"The TPS3617-50DGKR is listed with an active product status. No discontinuation or last-time-buy notice has been issued. It remains suitable for new designs requiring a 5 V battery backup supervisor."},{"question":"Does the TPS3617-50DGKR have an active-low reset output?","answer":"Yes, the reset output is active low with a push-pull, totem-pole output stage. It asserts low when the monitored voltage falls below the 4.55 V threshold and remains low for at least 60 ms after the supply recovers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3617-50DGKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3617-50DGKR 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}}