{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IR2151SPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IR2151SPBF","canonicalUrl":"https://icboms.com/infineon/IR2151SPBF","factsUrl":"https://icboms.com/api/mcp/products/IR2151SPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IR2151SPBF half-bridge gate driver, 600V bootstrap, 125mA source / 250mA sink peak output, 80ns/40ns rise/fall, 10V-20V supply, -40°C to 150°C, 8-SOIC.","salesMarkdown":"## Half-bridge driver that ran its production run The Infineon IR2151SPBF is a self-oscillating half-bridge gate driver designed for driving IGBTs and N-Channel MOSFETs in a synchronous configuration. It integrates a 600V bootstrap supply for the high-side gate, an RC input circuit that sets the oscillator frequency, and two output channels with 125mA source / 250mA sink peak current capability. The 80ns rise and 40ns fall times (typical) keep switching losses manageable in the 20-100 kHz range typical of half-bridge converters, electronic ballasts, and switch-mode power supplies. The 10V to 20V supply range gives headroom for driving standard MOSFET threshold voltages without an external regulator. The 600V high-side voltage max (bootstrap) is the hard ceiling for the DC bus in your half-bridge topology. If you're running a 400V DC bus from a rectified 230VAC line, you have 200V of margin — comfortable. If you're pushing toward a 550V bus from a three-phase rectifier, the margin gets thin and you need to watch switching transients that could exceed the rating. The 150°C TJ max is the absolute limit — at continuous high ambient you'll need to derate the output current per the datasheet's thermal impedance curves. The 125mA source / 250mA sink peak output is asymmetric: the stronger sink pulls the gate down faster than the source pulls it up. That's intentional for half-bridge shoot-through prevention — the low-side turn-off is quicker than the high-side turn-on. For a power MOSFET with 30-50 nC total gate charge, expect gate rise/fall in the 80-150 ns range depending on the external gate resistor. The closest functional replacement path is to evaluate the IR2153 series (self-oscillating half-bridge) or the IRS2153 family, which share the same basic topology but have different pinouts and dead-time characteristics. A pin-to-pin drop-in replacement is not guaranteed without checking the datasheet's recommended replacement note. For a board in production that already uses the IR2151SPBF, the realistic sourcing path is through independent distribution. The 8-SOIC package is common, so the physical part is findable in surplus channels, but quantities over a few thousand may require splitting across multiple date-code lots. ## Package and mounting — the 8-SOIC footprint The surface-mount footprint is standard SOIC-8 with 1.27 mm pitch — no exotic land pattern needed.","metaTitle":"IR2151SPBF Half-Bridge Driver, 600V Bootstrap, 8-SOIC","metaDescription":"Infineon IR2151SPBF half-bridge gate driver for IGBT/N-Channel MOSFET. 600V bootstrap, 125mA/250mA peak, 80ns/40ns rise/fall. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"-","Package":"Tube","Gate Type":"IGBT, N-Channel MOSFET","Input Type":"RC Input Circuit","Channel Type":"Synchronous","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 20V","Number of Drivers":"2","Base Product Number":"IR2151","Driven Configuration":"Half-Bridge","Operating Temperature":"-40°C ~ 150°C (TJ)","Rise / Fall Time (Typ)":"80ns, 40ns","Supplier Device Package":"8-SOIC","Logic Voltage - VIL, VIH":"-","High Side Voltage - Max (Bootstrap)":"600 V","Current - Peak Output (Source, Sink)":"125mA, 250mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IR2151SPBF/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy IR2151SPBF?","answer":"The IR2151SPBF is obsolete and no longer in factory production. Submit a request with your target quantity and we'll quote to order."},{"question":"What is the replacement for IR2151SPBF?","answer":"Infineon has not listed a direct pin-compatible successor for the IR2151SPBF. The IR2153 and IRS2153 series are functional successors in the self-oscillating half-bridge family, but their pinouts and dead-time characteristics differ. Check the Infineon application note for the recommended replacement path before committing a board spin."},{"question":"Is IR2151SPBF obsolete?","answer":"Yes, the IR2151SPBF carries an Obsolete product status. Infineon has ended production with no last-time-buy window open. Sourcing is limited to surplus and broker inventory."},{"question":"What is IR2151SPBF's listed gate type?","answer":"The IR2151SPBF is specified to drive both IGBTs and N-Channel MOSFETs. The driven configuration is half-bridge with synchronous channel type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IR2151SPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IR2151SPBF 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}}