{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2391DGKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2391DGKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS2391DGKR","factsUrl":"https://icboms.com/api/mcp/products/TPS2391DGKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2391DGKR Hot Swap Controller, -48V, 1-Channel, No Internal Switch, 700 µA Supply, -80V ~ -36V Supply, 8-VSSOP, -40°C ~ 85°C.","salesMarkdown":"## What this -48V hot swap controller does on the board The Texas Instruments TPS2391DGKR is a single-channel hot swap controller designed for -48V telecom and industrial power rails. It manages the inrush current when a board is plugged into a live backplane, preventing glitches and connector damage. The controller relies on an external N-channel MOSFET — there is no internal switch, so the pass FET and sense resistor are your choice for the load current you need. It operates from a -80V to -36V supply, which covers the standard -48V telecom bus with headroom for transients. The chip itself draws 700 µA from the rail. Three programmable features — current limit, fault timeout, and slew rate — let you tune the startup ramp and fault response to match the downstream capacitance and system protection philosophy. Auto retry is built in: after a fault clears, the controller attempts to restart the load without a power cycle. Undervoltage lockout (UVLO) holds the FET off until the supply is within range. The industrial temperature grade (-40°C to 85°C) suits outdoor telecom cabinets and factory-floor installations. ## Package and mounting — field-service reality The TPS2391DGKR comes in an 8-VSSOP package (3.00 mm width, 0.118\" pitch). That is a small, surface-mount part — fine for a pick-and-place line, but not something you swap in the field with a soldering iron and tweezers. If this is a field-replaceable board, socket the controller or plan for board-level rework. The tape-and-reel or cut-tape option is standard for production volume. ## Lifecycle and sourcing — no obsolescence worry The TPS2391DGKR is listed as Active with ROHS3 compliance. No end-of-life notice, no last-time-buy pressure.","metaTitle":"TPS2391DGKR Hot Swap Controller, -48V, 8-VSSOP","metaDescription":"TI TPS2391DGKR -48V Hot Swap Controller with programmable current limit, fault timeout, slew rate. Active, 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":"Auto Retry, UVLO","Applications":"-48V","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"700 µA","Voltage - Supply":"-80V ~ -36V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Current Limit, Fault Timeout, Slew Rate","Supplier Device Package":"8-VSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.98","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.98000","currency":"USD"},{"qty":10,"price":"$3.57500","currency":"USD"},{"qty":25,"price":"$3.37960","currency":"USD"},{"qty":100,"price":"$2.92890","currency":"USD"},{"qty":250,"price":"$2.77872","currency":"USD"},{"qty":500,"price":"$2.49336","currency":"USD"},{"qty":1000,"price":"$2.12550","currency":"USD"},{"qty":2500,"price":"$2.12550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6f3ff11e2d37b828810bd1efc74095ea.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does TPS2391DGKR require external FETs?","answer":"Yes. The TPS2391DGKR has no internal switch — it drives an external N-channel MOSFET that you select based on your load current and thermal requirements. The controller provides the gate drive and fault protection; the FET and sense resistor are external."},{"question":"What package is TPS2391DGKR available in?","answer":"Shipping options include Tape & Reel and Cut Tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2391DGKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2391DGKR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}