{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BTS50045-1TAC","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BTS50045-1TAC","canonicalUrl":"https://icboms.com/infineon/BTS50045-1TAC","factsUrl":"https://icboms.com/api/mcp/products/BTS50045-1TAC","rawCanonicalId":null},"summary":{"shortDescription":"Infineon BTS50045-1TAC automotive high-side power switch, single N-channel output, 4.5 mOhm typ Rds(on), 23 A max, 3.2 V to 28 V load, AEC-Q100, PG-TO-263-7-8 package.","salesMarkdown":"## Automotive high-side switch with 4.5 mOhm Rds(on) — what it handles The Infineon BTS50045-1TAC is a single-channel high-side N-channel power switch rated for a continuous load current of 23 A with a typical on-resistance of 4.5 mOhm. That Rds(on) figure means the voltage drop across the switch at full load is just over 100 mV — negligible for a 12 V automotive rail, so the load sees nearly the full battery voltage. The part operates over a 3.2 V to 28 V load supply range, covering nominal 12 V and 24 V truck systems as well as cold-crank and load-dump transients. The PG-TO-263-7-8 package (D²Pak with 6 leads plus tab) provides a low-thermal-resistance path to the PCB copper plane for heat sinking. ## Fault protection set — what survives and what doesn't The BTS50045-1TAC integrates over-temperature protection, over-voltage clamping, reverse battery protection, short-circuit protection, and under-voltage lockout (UVLO). Reverse battery protection is built in — if the battery is connected backwards, the switch blocks the reverse current path without damage to the load or the IC. Over-voltage protection handles load-dump events up to 28 V, and the short-circuit protection limits the output current during a fault. The slew-rate controlled turn-on reduces inrush current into capacitive loads, and the integrated load discharge resistor pulls the output to ground when the switch is off.","metaTitle":"BTS50045-1TAC High-Side Power Switch, 4.5 mOhm, AEC-Q100","metaDescription":"Infineon BTS50045-1TAC automotive high-side switch, 4.5 mOhm Rds(on), 23 A max, reverse battery protection. AEC-Q100 qualified.","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, AEC-Q100","Package":"Bulk","Features":"Load Discharge, Slew Rate Controlled","Interface":"-","Input Type":"Non-Inverting","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"4.5mOhm","Mounting Type":"Surface Mount","Package / Case":"TO-263-7, D²Pak (6 Leads + Tab)","Product Status":"Active","Voltage - Load":"3.2V ~ 28V","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Reverse Battery, Short Circuit, UVLO","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~150°C(TJ)","Current - Output (Max)":"23A","Supplier Device Package":"PG-TO-263-7-8","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e34f82751e9f49d74fe0321b0bb49ef8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does BTS50045-1TAC have reverse battery protection?","answer":"Yes, reverse battery protection is one of the integrated fault protections listed for this part. It blocks the reverse current path if the battery is connected backwards, protecting both the switch and the downstream load."},{"question":"Is BTS50045-1TAC AEC-Q100 qualified?","answer":"Yes, the part is listed under the Automotive series and carries AEC-Q100 qualification, making it suitable for automotive-grade applications including under-hood and chassis-domain environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BTS50045-1TAC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BTS50045-1TAC 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}}