{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L6491D","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L6491D","canonicalUrl":"https://icboms.com/stmicroelectronics/L6491D","factsUrl":"https://icboms.com/api/mcp/products/L6491D","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L6491D half-bridge gate driver, 4A peak source/sink, 600V bootstrap, 15ns typ rise/fall, 14-SOIC (0.154\", 3.90mm Width), tube.","salesMarkdown":"## Half-bridge gate driver in 14-SOIC — 4 A peak, 600 V bootstrap The L6491D is a half-bridge gate driver from STMicroelectronics, rated for 4 A peak source and sink current with a 600 V maximum bootstrap voltage. It drives both IGBT and N-channel MOSFET gates in a half-bridge configuration, with independent non-inverting channels. Rise and fall times are 15 ns typical, which keeps switching losses low at carrier frequencies above 100 kHz — relevant for motor-drive VFDs, switch-mode power supplies, and DC-DC converters where the dead-time budget is tight. ## Package, footprint, and temperature grade The supplier device package is 14-SO, which is the same mechanical outline. Operating junction temperature range is -40°C to 125°C, which suits industrial motor drives, outdoor telecom rectifiers, and under-hood automotive inverter stages where ambient heat is a factor. The part is ROHS3 compliant, so no RoHS exemption paperwork is needed for EU or global BOMs. ## Lifecycle and sourcing — active, no end-of-life notice The L6491DTR is the tape-and-reel variant of the same die; electrically identical, same package, same ratings. If your pick-and-place line prefers reel, the DTR suffix is the drop-in alternative without a board spin.","metaTitle":"STMicroelectronics L6491D Gate Driver, Half-Bridge, 4A","metaDescription":"L6491D half-bridge gate driver from STMicroelectronics, 4A peak output, 600V bootstrap, 15ns rise/fall, 14-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Gate Type":"IGBT, N-Channel MOSFET","Input Type":"Non-Inverting","Channel Type":"Independent","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 20V","Number of Drivers":"2","Driven Configuration":"Half-Bridge","Operating Temperature":"-40°C ~ 125°C (TJ)","Rise / Fall Time (Typ)":"15ns, 15ns","Supplier Device Package":"14-SO","Logic Voltage - VIL, VIH":"1.45V, 2V","High Side Voltage - Max (Bootstrap)":"600 V","Current - Peak Output (Source, Sink)":"4A, 4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.86","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.86000","currency":"USD"},{"qty":10,"price":"$2.56900","currency":"USD"},{"qty":25,"price":"$2.42400","currency":"USD"},{"qty":100,"price":"$2.06520","currency":"USD"},{"qty":250,"price":"$1.93920","currency":"USD"},{"qty":500,"price":"$1.69680","currency":"USD"},{"qty":1000,"price":"$1.40592","currency":"USD"},{"qty":2500,"price":"$1.30896","currency":"USD"},{"qty":5000,"price":"$1.26048","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1800da7cb082aaf8f0015ff337637ff2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will L6491D drop into a board designed for L6491DTR without rewiring?","answer":"Yes — the L6491D and L6491DTR share the same die, same electrical ratings, and same 14-SOIC package. The only difference is the shipping medium: tube (L6491D) versus tape-and-reel (L6491DTR). No PCB layout change is needed."},{"question":"What is the peak output current of the L6491D?","answer":"The L6491D delivers 4 A peak source and 4 A peak sink current, which is sufficient to drive large IGBT or MOSFET gates in half-bridge topologies at switching frequencies above 100 kHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L6491D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L6491D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}