{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM74700QDBVTQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM74700QDBVTQ1","canonicalUrl":"https://icboms.com/texas-instruments/LM74700QDBVTQ1","factsUrl":"https://icboms.com/api/mcp/products/LM74700QDBVTQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM74700QDBVTQ1, N+1 ORing Controller, Automotive AEC-Q100, N-Channel, 3.2V to 65V supply, 5A max output, 1.4µs on-delay, 450ns off-delay, SOT-23-6 package, -40°C to 125°C.","salesMarkdown":"## ORing controller for redundant automotive supply rails The Texas Instruments LM74700QDBVTQ1 is an N+1 ORing controller designed to replace a Schottky diode in redundant power-supply architectures. It drives an external N-channel MOSFET to steer current from the higher-voltage input to the output, blocking reverse current when a supply fails or shorts. Rated for a 3.2V to 65V supply range, it covers 12V and 24V automotive buses as well as 48V telecom rails. The 5A maximum output current is the MOSFET's rating, not the controller's — the actual load is limited by the external FET and its thermal management. ## Switching speed and reverse-current blocking The on-delay of 1.4 µs allows the controller to wait for the input to stabilize before turning on the FET, preventing false triggering during supply transients. The off-delay of 450 ns is the critical number: when the input drops below the output, the controller turns off the FET in under half a microsecond, limiting reverse current to a few hundred milliamps depending on the gate capacitance and load. Because the LM74700QDBVTQ1 has no internal switch, the designer selects the external N-channel FET. The gate drive is sized for standard logic-level and standard-threshold FETs. The SOT-23-6 package is a compact, 6-pin surface-mount footprint that fits on the back side of a PCB or in tight spaces near the input connector. The 1:1 input-to-output ratio means one controller handles one ORing leg; for N+1 redundancy, each supply rail gets its own LM74700QDBVTQ1 and external FET.","metaTitle":"LM74700QDBVTQ1 N+1 ORing Controller, 3.2V-65V, AEC-Q100","metaDescription":"Texas Instruments LM74700QDBVTQ1 N+1 ORing controller, 3.2V to 65V input, 5A output, AEC-Q100 qualified, SOT-23-6.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"N+1 ORing Controller","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","Product Status":"Active","Delay Time - ON":"1.4 µs","lifecycle_stage":"eol_hot","Delay Time - OFF":"450 ns","Voltage - Supply":"3.2V ~ 65V","Internal Switch(s)":"No","Base Product Number":"LM74700","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C~125°C(TJ)","Current - Output (Max)":"5A","Supplier Device Package":"SOT-23-6"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1272f02989ea02f6e3797dd7978bcab.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM74700QDBVTQ1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM74700QDBVTQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM74700QDBVTQ1 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}}