{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL594CDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL594CDRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL594CDRG4","factsUrl":"https://icboms.com/api/mcp/products/TL594CDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL594CDRG4, PWM controller, 1kHz~300kHz switching frequency, 7V~40V supply, 97% max duty cycle, 2 outputs, transistor driver, 16-SOIC package, 0°C~70°C.","salesMarkdown":"## PWM controller for multi-topology power supplies The Texas Instruments TL594CDRG4 is a fixed-frequency PWM controller that drives two transistor outputs for step-up, step-down, or step-up/step-down converters. It supports buck, boost, flyback, forward converter, half-bridge, full-bridge, and push-pull topologies — one part number covers a wide range of isolated and non-isolated designs. ## Switching frequency and duty cycle — design budget The oscillator runs from 1kHz to 300kHz, set by an external RT and CT. The 97% maximum duty cycle leaves only 3% dead time per cycle — important for forward converters where the reset winding must saturate before the next on-time, and for boost stages that need a long on-time at low input voltage. ## Supply range and control features The Vcc range of 7V to 40V lets the controller run directly from a 12V, 24V, or 48V industrial bus without a separate bias supply. Dead-time control and frequency control pins give the designer adjustment over the output waveform — the dead-time pin can be used to implement soft-start or to limit the maximum duty cycle below 97%. The narrow-body SOIC limits power dissipation compared to a wide-body package — the total junction-to-ambient thermal resistance is higher, so the designer must account for the controller's own power draw plus the gate-drive current when sizing the thermal footprint. The Tape & Reel (TR) packaging is the standard shipping form for the 16-SOIC body.","metaTitle":"TL594CDRG4 PWM Controller, 1kHz-300kHz, 7V-40V, 16-SOIC","metaDescription":"TL594CDRG4 PWM controller from Texas Instruments. 97% duty cycle, 7V to 40V supply, supports buck/boost/flyback/forward/half/full-bridge/push-pull.","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":"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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e7f90ece3ceb8a04e3b238e384f44f54.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL594CDRG4/alternatives.json"},"ai":{"faq":[{"question":"Does TL594CDRG4 support push-pull topology?","answer":"Yes — push-pull is listed among the supported topologies alongside buck, boost, flyback, forward converter, half-bridge, and full-bridge."},{"question":"What is the maximum duty cycle of TL594CDRG4?","answer":"The maximum duty cycle is 97%, which leaves 3% dead time per cycle for transformer reset or bootstrap refresh."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL594CDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL594CDRG4 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}}