{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3617-50DGK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3617-50DGK","canonicalUrl":"https://icboms.com/texas-instruments/TPS3617-50DGK","factsUrl":"https://icboms.com/api/mcp/products/TPS3617-50DGK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3617-50DGK battery backup supervisor IC, active-low reset, push-pull output, 4.55 V threshold, 60 ms reset timeout, -40 to 85 °C, 8-VSSOP package.","salesMarkdown":"## 4.55 V threshold supervisor for 5 V battery-backed rails The Texas Instruments TPS3617-50DGK is a battery backup supervisor IC that monitors a single 5 V supply rail and switches to battery when the voltage drops below 4.55 V. It asserts a push-pull active-low reset with a guaranteed minimum timeout of 60 ms, giving the processor time to save state and the oscillator to stabilise before release. ## Reset timing and output drive The reset output is push-pull (totem pole), so no external pull-up resistor is needed. A single voltage is monitored — the 4.55 V threshold is fixed and trimmed for 5 V nominal systems. Housed in an 8-VSSOP (also listed as 8-TSSOP / 8-MSOP, 3.00 mm width), this is a surface-mount part with a 0.65 mm pitch. The small footprint suits space-constrained designs on 5 V rails where a separate supervisor and battery switchover would take more board area.","metaTitle":"TPS3617-50DGK Battery Backup Circuit, Active Low Reset","metaDescription":"Texas Instruments TPS3617-50DGK battery backup supervisor IC with 4.55 V threshold, 60 ms reset timeout, push-pull output.","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":"Tube","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":"$2.4807","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b94f173724737950b63ddf5a42a7cec9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3617-50DGK/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3617-50DGK?","answer":"The reset timeout is 60 ms minimum, ensuring the processor stays in reset long enough for the supply rail and oscillator to stabilise after a brownout or power-up."},{"question":"What is the difference between TPS3617-50DGK and TPS3617-33DGK?","answer":"The key difference is the voltage threshold: the -50 variant monitors a 4.55 V threshold for 5 V rails, while the -33 variant monitors a lower threshold for 3.3 V rails. Both share the same package, reset timeout, and temperature range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3617-50DGK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3617-50DGK 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}}