{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS2399DGK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS2399DGK","canonicalUrl":"https://icboms.com/texas-instruments/TPS2399DGK","factsUrl":"https://icboms.com/api/mcp/products/TPS2399DGK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS2399DGK Hot Swap Controller, -48V, 1-channel, no internal switch, programmable current limit/fault timeout/slew rate, UVLO, auto-retry, -80V to -36V supply, 700 µA supply current, -40 to 85°C, 8-VSSOP package, Tube.","salesMarkdown":"## What this -48V hot swap controller does on the backplane The Texas Instruments TPS2399DGK is a single-channel hot swap controller designed for -48V telecom and industrial backplanes. It manages inrush current during card insertion and provides overcurrent protection with a programmable current limit, fault timeout, and slew rate. The part includes auto-retry and undervoltage lockout (UVLO) as built-in features, and it operates from a -80V to -36V supply rail, drawing 700 µA of supply current. Housed in an 8-VSSOP package, it is rated for the industrial temperature range of -40°C to 85°C, making it suitable for outdoor telecom cabinets, base stations, and -48V distributed power systems where board swapping happens live. ## Supply voltage and what it means for your -48V rail The -80V to -36V supply range covers the full tolerance band of a nominal -48V telecom bus, including transients and battery float voltages. If your backplane runs at -48V nominal with a -36V brownout threshold and -60V transient peaks, this controller stays within its operating window. The UVLO feature can be set to hold off the external MOSFET until the rail is above a safe minimum, preventing partial turn-on that would cook the pass element. ## Programmable protection — setting the inrush and fault behavior Three programmable parameters — current limit, fault timeout, and slew rate — let you tailor the startup ramp and fault response to the load capacitance and system coordination. A slow slew rate limits inrush into a bank of bulk capacitors; a fast fault timeout clears a short before the upstream breaker trips. The auto-retry feature means the controller will keep trying to restart after a fault, which is useful for transient loads but can be a nuisance if the fault is permanent — plan your retry count with external logic if needed. ## Package and mounting — fits the 8-VSSOP footprint The TPS2399DGK comes in an 8-VSSOP surface-mount package, 3.00 mm width. The Tube shipping medium is typical for prototype and low-volume builds. ## Lifecycle and sourcing — active, no LTB concern It is ROHS3 compliant.","metaTitle":"TPS2399DGK Hot Swap Controller, -48V, 8-VSSOP","metaDescription":"TI TPS2399DGK -48V hot swap controller with auto-retry, UVLO, programmable current limit. Industrial temp -40 to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller","Package":"Tube","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":"$4.78","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.78000","currency":"USD"},{"qty":10,"price":"$4.28900","currency":"USD"},{"qty":25,"price":"$4.05440","currency":"USD"},{"qty":100,"price":"$3.51390","currency":"USD"},{"qty":250,"price":"$3.33368","currency":"USD"},{"qty":500,"price":"$2.99132","currency":"USD"},{"qty":1000,"price":"$2.55000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7fea7aa0483eb87b6f1d200ef163f8fc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS2399DGK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS2399DGK 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}}