{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3619-50DGKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3619-50DGKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3619-50DGKR","factsUrl":"https://icboms.com/api/mcp/products/TPS3619-50DGKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3619-50DGKR battery backup circuit, active-low reset, push-pull output, 4.55 V threshold, 60 ms minimum reset timeout, 8-VSSOP package, -40 to 85 °C.","salesMarkdown":"## Battery backup supervisor for volatile memory rails It asserts a reset output (active-low, push-pull) and holds it for a minimum of 60 ms after the supply recovers, giving the processor time to stabilise before re-enabling the system. This part is designed for applications where a microcontroller or SRAM must retain state during a brief power loss — think RAID controllers, industrial PLCs, or any board with a coin-cell backup domain. ## 4.55 V threshold — where the switchover lands On a nominal 5 V rail, the supervisor triggers the backup switchover before the rail drops below the minimum operating voltage of most 5 V logic, preventing brown-out corruption. On a 3.3 V system this part is not the right fit — the threshold would never be reached, so the backup never engages. The reset timeout of 60 ms minimum gives the main supply time to come up cleanly after a glitch. If your processor needs a longer hold time before release, you will need an external delay or a different supervisor with a programmable timeout. ## Package and footprint for assembly planning If your rework station or prototype run needs a tube, the TPS3619-50DGK (the tube variant) is the same die in the same package — just a different shipping medium.","metaTitle":"Texas Instruments TPS3619-50DGKR Battery Backup Circuit","metaDescription":"Texas Instruments TPS3619-50DGKR battery backup supervisor IC. Active-low reset, push-pull output, 60 ms timeout, 4.55 V threshold, -40 to 85 °C.","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":"TPS3619","Voltage - Threshold":"4.55V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"8-VSSOP","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2750","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ae93676fcfae3cff35626cc09a4a46ae.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3619-50DGKR/alternatives.json"},"ai":{"faq":[{"question":"Can TPS3619-50DGKR be used as a drop-in replacement for TPS3619-50DGK?","answer":"Yes — the TPS3619-50DGK and TPS3619-50DGKR share the same die and package (8-VSSOP). The only difference is the shipping medium: the -R suffix denotes Tape & Reel, while the -DGK suffix is tube. Functionally they are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3619-50DGKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3619-50DGKR 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}}