{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494CDRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494CDRE4","canonicalUrl":"https://icboms.com/texas-instruments/TL494CDRE4","factsUrl":"https://icboms.com/api/mcp/products/TL494CDRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494CDRE4, PWM controller, Step-Up/Step-Down, Buck/Boost/Flyback/Forward/Half-Bridge/Push-Pull, 1kHz~300kHz, 7V~40V supply, 45% duty cycle, 2 outputs, 16-SOIC, 0°C~70°C.","salesMarkdown":"## PWM controller with 1 kHz to 300 kHz switching — topology fit The TL494CDRE4 is a fixed-frequency PWM controller from Texas Instruments that drives transistor outputs across a 1 kHz to 300 kHz switching range. The 7 V to 40 V supply range lets it run directly off 12 V, 24 V, or 48 V industrial rails without a separate bias regulator — a clean BOM simplification for multi-rail power supplies. ## Commercial temperature grade — indoor and bench use It is not specified for automotive under-hood or outdoor telecom cabinets where the ambient exceeds 70 °C. ## 16-SOIC narrow body — layout and thermal limits Housed in a 16-SOIC narrow-body package (3.90 mm width), the TL494CDRE4 uses the standard SOIC-16 footprint. There is no exposed thermal pad, so the junction-to-ambient thermal resistance is higher than in a TSSOP with pad — keep the total power dissipation below ~0.8 W in still air at 25 °C ambient. ## Sourcing and lifecycle — active production This is the tape-and-reel ordering code for the commercial-temperature variant. The base product number is TL494; other suffix options (TL494CD, TL494ID) differ by temperature grade or package. Confirm the exact suffix matches your BOM before ordering.","metaTitle":"TL494CDRE4 PWM Controller, 1 kHz–300 kHz, 7 V–40 V, 16-SOIC","metaDescription":"Texas Instruments TL494CDRE4 PWM controller with 1 kHz to 300 kHz switching, 7 V to 40 V supply, 45 % max duty cycle. Active production, 16-SOIC package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Function":"Step-Up, Step-Down, Step-Up/Step-Down","Topology":"Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Dead Time Control, Frequency Control","Duty Cycle (Max)":"45%","Number of Outputs":"2","Serial Interfaces":"-","Base Product Number":"TL494","Output Configuration":"Positive","Frequency - Switching":"1kHz ~ 300kHz","Operating Temperature":"0°C~70°C(TA)","Synchronous Rectifier":"No","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"7V ~ 40V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c7861fe9c4cffdf82e84953a76a5ab14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL494CDRE4/alternatives.json"},"ai":{"faq":[{"question":"Can TL494CDRE4 be used in a buck converter?","answer":"Yes. The TL494 supports buck topology. The 45 % max duty cycle per output limits the step-down ratio in a single-ended buck — for higher ratios, use the push-pull or half-bridge configuration with a transformer."},{"question":"What is the TL494CDRE4 used for?","answer":"It is a PWM controller for switch-mode power supplies: buck, boost, flyback, forward, half-bridge, and push-pull converters. Typical applications include bench supplies, telecom DC-DC modules, and appliance PSUs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494CDRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494CDRE4 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}}