{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494CDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494CDR","canonicalUrl":"https://icboms.com/texas-instruments/TL494CDR","factsUrl":"https://icboms.com/api/mcp/products/TL494CDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494CDR, PWM controller, 7 V to 40 V supply, 1 kHz to 300 kHz switching, 45% max duty cycle, 2 outputs, transistor driver, 16-SOIC, active lifecycle.","salesMarkdown":"## Active PWM controller for multi-topology power stages The TL494CDR is a fixed-frequency PWM controller supporting buck, boost, flyback, forward, full-bridge, half-bridge, and push-pull topologies. Its 7 V to 40 V supply range covers industrial buses without an external regulator. Two transistor-driver outputs each deliver a maximum duty cycle of 45%, which forces a push-pull or half-bridge architecture for output voltages above the input rail. The 1 kHz to 300 kHz switching frequency range lets the designer trade transformer size against core loss. ## Duty-cycle ceiling and topology selection At 45% max duty cycle per output, the TL494CDR cannot run a single-ended forward converter without a reset winding or a two-switch forward topology. The UCC2806DWTR offers a 50% duty cycle and synchronous rectifier capability, but its 47 kHz maximum switching frequency limits transformer miniaturisation.","metaTitle":"TL494CDR Texas Instruments PWM Controller – Active, 16-SOIC","metaDescription":"TL494CDR PWM controller from TI, active lifecycle, 7 V to 40 V supply, 1 kHz to 300 kHz switching, 45% max duty cycle, 16-SOIC. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","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":"$0.4500","priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.38900","currency":"USD"},{"qty":25,"price":"$0.36280","currency":"USD"},{"qty":100,"price":"$0.29030","currency":"USD"},{"qty":250,"price":"$0.26960","currency":"USD"},{"qty":500,"price":"$0.22812","currency":"USD"},{"qty":1000,"price":"$0.17627","currency":"USD"},{"qty":2500,"price":"$0.13292","currency":"USD"},{"qty":5000,"price":"$0.12487","currency":"USD"},{"qty":12500,"price":"$0.11681","currency":"USD"},{"qty":25000,"price":"$0.11400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c7861fe9c4cffdf82e84953a76a5ab14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL494CDR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum duty cycle of TL494CDR?","answer":"45% per output. This limits single-ended forward converter designs without a reset winding; push-pull or half-bridge topologies are the natural fit."},{"question":"Is TL494CDR obsolete?","answer":"No."},{"question":"What are the equivalents or cross references for TL494CDR?","answer":"The UCC2806DWTR is a functional peer with 50% duty cycle and synchronous rectifier support, but its 47 kHz max switching frequency is lower. The LM5150QURUMRQ1 is a single-output boost controller with automotive qualification — not a direct cross for multi-topology designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494CDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494CDR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}