{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VN540-E","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VN540-E","canonicalUrl":"https://icboms.com/stmicroelectronics/VN540-E","factsUrl":"https://icboms.com/api/mcp/products/VN540-E","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPower™ VN540-E, high-side power switch, 1 output, 2.8 A max, 50 mOhm Rds(on) typ, 10 V to 36 V load, Pentawatt-5 through-hole, -25°C to 85°C.","salesMarkdown":"## High-side switch for 24 V industrial loads — 2.8 A, 50 mOhm The STMicroelectronics VN540-E is a single-channel high-side power switch from the VIPower™ family, designed to drive resistive, inductive, and lamp loads on a 10 V to 36 V supply rail. It delivers up to 2.8 A continuous output with a typical on-resistance of 50 mOhm, which keeps conduction losses manageable at full load — about 0.4 W dissipation at 2.8 A, well within the Pentawatt-5 package's thermal budget if the copper area under the tab is adequate. The switch is self-contained: it needs no external Vcc supply (the logic supply is derived from the load voltage), and its On/Off interface is non-inverting, so a logic high on the input turns the output on. Built-in fault protection includes fixed current limiting and over-temperature shutdown, which means the part can survive a shorted load or a stalled fan without immediate destruction — the thermal limit cycles the output until the fault clears. ## Pentawatt-5 through-hole — rework-friendly, board-space trade-off The VN540-E comes in a Pentawatt-5 package (vertical, bent and staggered leads), a through-hole format that is straightforward to hand-solder and rework — no hot-air station needed, and the staggered lead arrangement gives good mechanical retention on the board. The downside is board area: the package footprint is larger than an equivalent SMD part like a DPAK or SO-8, so it is better suited to plated-through-hole layouts where the tab can be soldered to a copper island for heat sinking. For applications that see sustained ambient above 70°C, the 2.8 A rating should be derated — the datasheet's thermal impedance curve is the guide. Because the part is obsolete, any new design should avoid it unless the BOM is locked and the production run is short enough to cover from surplus stock. For a repair or a legacy-board refit, the VN540-E can still be sourced, but expect higher per-unit cost and longer lead times compared to an active-production part.","metaTitle":"STMicroelectronics VN540-E VIPower high-side switch, 2.8 A","metaDescription":"STMicroelectronics VN540-E VIPower high-side driver, 2.8 A output, 50 mOhm Rds(on), 10-36 V load range, Pentawatt-5 through-hole.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPower™","Package":"Tube","Features":"Status Flag","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"-","Switch Type":"General Purpose","Rds On (Typ)":"50mOhm (Max)","Mounting Type":"Through Hole","Package / Case":"Pentawatt-5 (Vertical, Bent and Staggered Leads)","Product Status":"Obsolete","Voltage - Load":"10V ~ 36V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature","Number of Outputs":"1","Base Product Number":"VN540","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-25°C ~ 85°C (TJ)","Current - Output (Max)":"2.8A","Supplier Device Package":"5-PENTAWATT","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/262c4fb04d7eec0779d2de91be2fb1be.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VN540-E/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the VN540-E and VN540?","answer":"The VN540-E is the tube-packaged variant of the base VN540 device. The electrical specifications — 2.8 A output, 50 mOhm Rds(on), 10 V to 36 V load range, Pentawatt-5 package — are identical. The only difference is the shipping medium: tube vs. other packaging options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VN540-E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VN540-E 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}}