{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL594IDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL594IDRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL594IDRG4","factsUrl":"https://icboms.com/api/mcp/products/TL594IDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL594IDRG4, PWM controller, 1kHz~300kHz switching frequency, 97% max duty cycle, 7V~40V supply, 16-SOIC surface mount, -40°C~85°C.","salesMarkdown":"## PWM controller for multi-topology power supplies The Texas Instruments TL594IDRG4 is a fixed-frequency PWM controller that handles step-up, step-down, and step-up/step-down topologies — buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull — from a single 16-SOIC package. Its 7V to 40V supply range directly powers from a 12V or 24V industrial bus without an intermediate regulator, and the 1kHz to 300kHz switching frequency lets the designer trade transformer size against core loss. ## Switching frequency and duty cycle — sizing the magnetics The 1kHz~300kHz oscillator range sets the transformer flux swing and output filter corner. A 100kHz design shrinks the magnetics versus 50kHz, but pushes gate-drive loss higher; the TL594IDRG4's transistor-driver outputs handle the increased sink current. Maximum duty cycle of 97% allows the output to stay on nearly the whole cycle — useful in a boost converter that needs low dropout between input and output, or in a forward converter that must reset the core within the off-time.","metaTitle":"TL594IDRG4 PWM Controller, 1kHz~300kHz, 97% Duty, 16-SOIC","metaDescription":"Texas Instruments TL594IDRG4 PWM controller. 7V~40V supply, 1kHz~300kHz switching, 97% max duty cycle. Active lifecycle.","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)":"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":"$0.8900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e7f90ece3ceb8a04e3b238e384f44f54.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL594IDRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum duty cycle of TL594IDRG4?","answer":"The maximum duty cycle is 97%, allowing near-continuous on-time for the output stage."},{"question":"Is TL594IDRG4 RoHS compliant?","answer":"The 'G4' suffix in the order code indicates a RoHS-compliant, green (halogen-free) finish per Texas Instruments' environmental compliance marking."},{"question":"What is the difference between TL594 and TL594IDRG4?","answer":"The base part number is TL594. A TL594 with a different suffix may have a commercial temperature range or a different package — confirm the full order code matches the BOM requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL594IDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL594IDRG4 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}}