{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494CD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494CD","canonicalUrl":"https://icboms.com/texas-instruments/TL494CD","factsUrl":"https://icboms.com/api/mcp/products/TL494CD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494CD, PWM controller, step-up/step-down/step-up/step-down, buck/boost/flyback/forward/full-bridge/half-bridge/push-pull topology, 1 kHz–300 kHz, 7 V–40 V supply, 45% max duty cycle, 16-SOIC, 0°C–70°C.","salesMarkdown":"## PWM controller for multi-topology power supplies The Texas Instruments TL494CD is a fixed-frequency PWM controller designed for a wide range of switching regulator topologies including buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull configurations. Control features include dead-time control and frequency control, allowing the designer to adjust the overlap between output phases and synchronize to an external clock if needed. ## Commercial temperature grade — environment check It is not qualified for automotive under-hood, outdoor telecom cabinets, or industrial motor drives where ambient temperatures exceed 70°C. For extended-temperature applications, a different controller family with industrial or automotive temperature range would be required. ## Lifecycle status — obsolete, last-time-buy concluded The TL494CD is marked Obsolete by Texas Instruments. No last-time-buy window is currently open. Sourcing is through independent distribution and surplus channels. Buyers should confirm date code and condition at time of order; the part is not available through authorized factory channels. For new designs, a current-production PWM controller with similar functionality should be evaluated. ## Sourcing reality for the BOM line Availability is limited to independent-distributor inventory and surplus lots. Pricing and lead time vary with market conditions and are confirmed at quote time. Buyers should plan for a non-cancellable, non-returnable transaction typical of end-of-life components.","metaTitle":"TL494CD PWM Controller, 1 kHz–300 kHz, 16-SOIC","metaDescription":"TL494CD PWM controller from Texas Instruments. Switching frequency 1 kHz to 300 kHz, 7 V to 40 V supply, 45% max duty cycle, 16-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","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)","Product Status":"Active","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":"$0.5300","priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.12600","currency":"USD"},{"qty":25,"price":"$1.06840","currency":"USD"},{"qty":100,"price":"$0.87770","currency":"USD"},{"qty":250,"price":"$0.82044","currency":"USD"},{"qty":500,"price":"$0.72504","currency":"USD"},{"qty":1000,"price":"$0.57240","currency":"USD"},{"qty":2500,"price":"$0.54000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c7861fe9c4cffdf82e84953a76a5ab14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL494CD/alternatives.json"},"ai":{"faq":[{"question":"Is TL494CD obsolete?","answer":"Yes, Texas Instruments has marked the TL494CD as Obsolete. No last-time-buy window is currently open."},{"question":"What is a replacement for TL494CD?","answer":"No official replacement is listed by Texas Instruments. For a similar-function PWM controller, the UCC2806DWTR offers a 50% duty cycle, synchronous rectifier capability, and an extended temperature range of -40°C to 85°C, but it is not a pin-compatible drop-in. Designers should evaluate the UCC2806 or a current-production controller such as the LM5150 for new designs."},{"question":"What is TL494CD's listed function?","answer":"The TL494CD is a PWM controller supporting step-up, step-down, and step-up/step-down regulation topologies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494CD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494CD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-14T12:07:58.912Z","lastPublished":"2026-07-14T12:07:58.912Z","indexable":true}}