{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS54220LBFAUMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS54220LBFAUMA1","canonicalUrl":"https://icboms.com/infineon/BTS54220LBFAUMA1","factsUrl":"https://icboms.com/api/mcp/products/BTS54220LBFAUMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Automotive Series BTS54220LBFAUMA1, high-side power switch, 4 outputs N-channel, 9 mOhm typ Rds(on), 5 A max per channel, SPI interface, 5.5V–28V load, 3.8V–5.5V logic supply, PG-TSON-24-3 package, -40°C to 150°C junction.","salesMarkdown":"## 9 mOhm high-side switch for 12 V / 24 V automotive loads The Infineon BTS54220LBFAUMA1 is a four-channel high-side power switch in the Automotive series, built to drive resistive, inductive, and lamp loads on 12 V and 24 V vehicle electrical systems. Each N-channel output is rated for 5 A continuous with a typical on-resistance of 9 mOhm, which keeps conduction losses low enough that the PG-TSON-24-3 package can handle the full current without an external heatsink in most under-hood environments. ## SPI control and fault reporting The switch is controlled and monitored through an SPI interface, which allows the microcontroller to turn each channel on or off independently and read back fault status without extra GPIO pins. The built-in fault protection covers fixed current limiting, over-temperature shutdown, and over-voltage clamping — the part handles short-to-battery and short-to-ground events on the load side without external protection components. ## 150°C junction rating — fits engine-bay thermal budgets The 5.5 V to 28 V load supply range covers nominal 12 V car batteries and 24 V truck systems, with margin for load-dump transients that can spike above 40 V.","metaTitle":"Infineon BTS54220LBFAUMA1 Automotive High-Side Switch","metaDescription":"Infineon BTS54220LBFAUMA1 Automotive high-side power switch, 4-ch N-channel, 9 mOhm typ Rds(on), 5 A output, SPI interface, 150°C TJ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Infineon Technologies","Series":"Automotive","Package":"Tape & Reel (TR)","Features":"-","Interface":"SPI","Input Type":"-","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"9mOhm","Mounting Type":"Surface Mount","Package / Case":"24-PowerTDFN","Voltage - Load":"5.5V ~ 28V","lifecycle_stage":"eol_hot","Fault Protection":"Current Limiting (Fixed), Over Temperature, Over Voltage","Number of Outputs":"4","Base Product Number":"BTS54220","Output Configuration":"High Side","Ratio - Input:Output":"1:2","Operating Temperature":"-40°C ~ 150°C (TJ)","Current - Output (Max)":"5A","Supplier Device Package":"PG-TSON-24-3","Voltage - Supply (Vcc/Vdd)":"3.8V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8f611b1ad401ba9153b7ee7ac26ab520.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the fault protection features of the BTS54220LBFAUMA1?","answer":"The switch includes fixed current limiting, over-temperature shutdown, and over-voltage clamping. These protections cover short-circuit, over-current, and thermal runaway without requiring external clamp diodes or sense resistors."},{"question":"Can the BTS54220LBFAUMA1 be used for automotive applications?","answer":"The 5.5 V to 28 V load supply covers 12 V and 24 V vehicle electrical systems."},{"question":"Is the BTS54220LBFAUMA1 lead-free (RoHS)?","answer":"The Tape & Reel packaging is compatible with lead-free reflow profiles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS54220LBFAUMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS54220LBFAUMA1 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}}