{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL594IDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL594IDR","canonicalUrl":"https://icboms.com/texas-instruments/TL594IDR","factsUrl":"https://icboms.com/api/mcp/products/TL594IDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL594IDR, PWM controller, 1kHz–300kHz switching, 97% max duty cycle, 2 outputs, transistor driver, 7V–40V supply, -40°C–85°C, 16-SOIC.","salesMarkdown":"## PWM controller for multi-topology power supplies The Texas Instruments TL594IDR is a fixed-frequency PWM controller that can be configured for step-up, step-down, or step-up/step-down conversion across seven topologies: buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull. It integrates two transistor-driver outputs, a 1 kHz to 300 kHz oscillator, dead-time control, and a 7 V to 40 V supply range, making it a workhorse for industrial and telecom power supplies that need one controller to handle multiple rail architectures. ## 97% duty cycle — headroom and dead-time trade-off The 97% maximum duty cycle lets the controller hold the switch on nearly the whole period, useful for low-dropout regulation in boost or flyback stages. ## Switching frequency range: 1 kHz to 300 kHz The oscillator runs from 1 kHz to 300 kHz, set by a single RT/CT network.","metaTitle":"TL594IDR PWM Controller, 1kHz–300kHz, 97% Duty Cycle","metaDescription":"TL594IDR is a TI PWM controller supporting buck, boost, flyback, bridge topologies. 7V–40V supply, 1kHz–300kHz, 97% max duty, -40°C to 85°C. Active, ROHS3.","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)":"97%","Number of Outputs":"2","Serial Interfaces":"-","Base Product Number":"TL594","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":"$0.9500","priceTiers":[{"qty":1,"price":"$0.95000","currency":"USD"},{"qty":10,"price":"$0.85300","currency":"USD"},{"qty":25,"price":"$0.80920","currency":"USD"},{"qty":100,"price":"$0.66480","currency":"USD"},{"qty":250,"price":"$0.62148","currency":"USD"},{"qty":500,"price":"$0.54920","currency":"USD"},{"qty":1000,"price":"$0.43358","currency":"USD"},{"qty":2500,"price":"$0.40904","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e7f90ece3ceb8a04e3b238e384f44f54.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL594IDR/alternatives.json"},"ai":{"faq":[{"question":"Is TL594IDR obsolete?","answer":"No, the TL594IDR is listed as Active in production. TI continues to manufacture this part, so there is no last-time-buy risk for new designs."},{"question":"What is the maximum duty cycle of TL594IDR?","answer":"The maximum duty cycle is 97%, which allows near-continuous on-time for low-dropout regulation but requires careful dead-time control to ensure the transformer resets properly."},{"question":"What is the closest functional second-source for TL594IDR?","answer":"The UCC2806DWTR is a functional peer with similar topology support (boost, flyback, forward converter) and the same output count and temperature range, but it has a 50% maximum duty cycle and includes synchronous rectifier capability. For designs that need duty cycles above 50%, the TL594IDR is the better fit."},{"question":"What is TL594IDR's listed function?","answer":"The TL594IDR is a PWM controller that can be configured for step-up, step-down, or step-up/step-down conversion, supporting buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull topologies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL594IDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL594IDR 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}}