{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL594IPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL594IPW","canonicalUrl":"https://icboms.com/texas-instruments/TL594IPW","factsUrl":"https://icboms.com/api/mcp/products/TL594IPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL594IPW, PWM Controller, Step-Up/Step-Down, 1 kHz–300 kHz, 7 V–40 V supply, 97% duty cycle, 2 outputs, 16-TSSOP, -40°C to 85°C, Tube.","salesMarkdown":"## Multi-topology PWM controller for industrial power supplies The Texas Instruments TL594IPW is a fixed-frequency PWM controller that supports step-up, step-down, and step-up/step-down topologies including buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull configurations. It provides two push-pull transistor-driver outputs with a maximum duty cycle of 97%, operating from a 7 V to 40 V supply rail and switching between 1 kHz and 300 kHz. ## Switching frequency and duty cycle — design trade-offs The 1 kHz to 300 kHz switching range lets the designer balance transformer size against core losses: lower frequencies simplify magnetic design but increase component volume; higher frequencies shrink the magnetics but demand faster diodes and careful layout to manage switching losses. A 97% maximum duty cycle means the controller can run near dropout in boost mode or maintain regulation with a narrow input-to-output voltage margin — useful in battery-backed or loosely regulated front-end supplies. Dead-time control and frequency control are available on dedicated pins, allowing the designer to adjust the overlap between output phases and synchronise to an external clock if needed — though the part lacks a dedicated clock sync input. Designers evaluating this part for a new project should consider the active TL594 family variants in compatible packages or a modern PWM controller with similar topology support, though pin compatibility must be verified against the target footprint. ## 16-TSSOP footprint and thermal notes The 16-TSSOP package (0.173\" body width, 4.40 mm) is a compact surface-mount option for space-constrained PCBs. There is no exposed thermal pad — junction-to-ambient thermal resistance depends on the copper area on the top and bottom layers and the number of thermal vias under the package.","metaTitle":"TL594IPW PWM Controller, Obsolete, 16-TSSOP, Industrial Temp","metaDescription":"TL594IPW is an obsolete PWM controller from TI supporting buck, boost, flyback, and bridge topologies. 1 kHz–300 kHz switching, 7 V–40 V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"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-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Obsolete","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-TSSOP","Voltage - Supply (Vcc/Vdd)":"7V ~ 40V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e7f90ece3ceb8a04e3b238e384f44f54.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL594IPW/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL594IPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL594IPW 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}}