{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCA4307DGKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TCA4307DGKR","canonicalUrl":"https://icboms.com/texas-instruments/TCA4307DGKR","factsUrl":"https://icboms.com/api/mcp/products/TCA4307DGKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TCA4307DGKR Hot Swap Controller, 2.3V ~ 5.5V supply, 2.5 mA supply current, 1 channel, internal switch, programmable slew rate and UVLO, 8-VSSOP package, Tape & Reel.","salesMarkdown":"## Hot-swap controller for I2C and SMBus backplanes The TCA4307DGKR is a single-channel hot swap controller from Texas Instruments designed to insert and remove I2C-bus and SMBus cards from a live backplane without corrupting the bus or causing glitches on the data and clock lines. It integrates an internal switch and operates from a 2.3V to 5.5V supply rail, drawing 2.5 mA typical supply current. The 2.3V minimum means it works with both standard 2.5V and 3.3V I2C logic levels, and the 5.5V ceiling covers the 5V-tolerant SMBus specification. ## Programmable protection and temperature range Programmable features include slew-rate control and undervoltage lockout (UVLO) threshold. The slew-rate setting limits inrush current when the card is inserted, preventing the backplane supply from drooping; the UVLO threshold ensures the bus controller does not attempt to communicate until the supply rail is stable. ## Package options and board-level fit The TCA4307DGKR is offered in an 8-VSSOP package (supplier device package,), also described as 8-TSSOP or 8-MSOP with a 3.00mm body width. The 0.65mm pin pitch is a common footprint that routes easily on a two-layer board without micro-vias. The reel quantity is the standard TI 2500-unit reel for this package — a single reel covers most prototype runs and low-volume production without breaking the tape.","metaTitle":"TCA4307DGKR Hot Swap Controller, 2.3-5.5V, 8-VSSOP","metaDescription":"Texas Instruments TCA4307DGKR hot swappable I2C bus and SMBus controller. 2.3V-5.5V supply, 2.5 mA supply current, 8-VSSOP. Active production. RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"UVLO","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"2.5 mA","Voltage - Supply":"2.3V ~ 5.5V","Internal Switch(s)":"Yes","Number of Channels":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Programmable Features":"Slew Rate, UVLO","Supplier Device Package":"8-VSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.24000","currency":"USD"},{"qty":10,"price":"$2.91400","currency":"USD"},{"qty":25,"price":"$2.75480","currency":"USD"},{"qty":100,"price":"$2.38740","currency":"USD"},{"qty":250,"price":"$2.26496","currency":"USD"},{"qty":500,"price":"$2.03234","currency":"USD"},{"qty":1000,"price":"$1.73250","currency":"USD"},{"qty":2500,"price":"$1.73250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f70cd2eedae38420fe982d73e47098b9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the TCA4307DGKR used for?","answer":"It is a hot swap controller for I2C-bus and SMBus applications. It allows a card or module to be inserted into or removed from a live backplane without corrupting the bus data or causing supply glitches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TCA4307DGKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TCA4307DGKR 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}}