{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494IDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494IDRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL494IDRG4","factsUrl":"https://icboms.com/api/mcp/products/TL494IDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494IDRG4, PWM controller, 1 kHz to 300 kHz switching frequency, 7 V to 40 V supply, 45% max duty cycle per output, 2 outputs, transistor driver, 16-SOIC package, -40°C to 85°C.","salesMarkdown":"## PWM controller for isolated and non-isolated topologies The Texas Instruments TL494IDRG4 is a fixed-frequency PWM controller supporting buck, boost, flyback, forward, half-bridge, full-bridge, and push-pull topologies. The supply range of 7 V to 40 V lets it run directly off a rectified AC bus or a 12 V/24 V/36 V industrial rail without an extra regulator. ## Duty cycle and topology fit The 45% maximum duty cycle per output means each driver is off for at least 10% of the period. This dead time is inherent and suits push-pull and half-bridge converters where cross-conduction must be avoided. For a single-ended forward converter the effective duty cycle is still 45%, so the transformer reset winding must handle the volt-seconds during the off time. Dead-time control and frequency control are available as external adjustments, so the designer can set the overlap blanking and the switching frequency independently.","metaTitle":"TL494IDRG4 PWM Controller, 1 kHz–300 kHz, 7 V–40 V, 16-SOIC","metaDescription":"TL494IDRG4 PWM controller from TI. Switching frequency 1 kHz to 300 kHz, supply 7 V to 40 V, 45% max duty cycle per output. 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":"-40°C~85°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/TL494IDRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum duty cycle of TL494IDRG4?","answer":"The maximum duty cycle per output is 45%."},{"question":"Is TL494IDRG4 RoHS compliant?","answer":"The TL494IDRG4 is listed with a Tape & Reel package; TI's standard RoHS compliance applies to this suffix. Verify the specific date code against the RoHS certificate at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494IDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494IDRG4 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}}