{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494CPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494CPW","canonicalUrl":"https://icboms.com/texas-instruments/TL494CPW","factsUrl":"https://icboms.com/api/mcp/products/TL494CPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494CPW, PWM controller, 16-TSSOP, 7V–40V supply, 1 kHz–300 kHz switching, 45% max duty cycle per output, 2 transistor-driver outputs, commercial temp 0°C–70°C.","salesMarkdown":"The TL494CPW is a fixed-frequency PWM controller that drives two external transistors in step-up, step-down, or step-up/step-down topologies — buck, boost, flyback, forward, full-bridge, half-bridge, or push-pull. Switching frequency is programmable from 1 kHz to 300 kHz. At the low end it drives line-frequency transformers in push-pull or half-bridge; at the high end it shrinks magnetics for a 100–200 kHz buck converter. The 45% max duty cycle per output prevents simultaneous conduction in push-pull stages — a deliberate design guard against core saturation. ## Package, temperature, and board-fit checks Housed in a 16-TSSOP (0.173-inch body width, 4.40 mm). The fine-pitch leads (0.65 mm) require a controlled reflow profile and solder-paste inspection — not a hand-solder part. Two transistor-driver outputs with positive output configuration drive external NPN or N-channel FETs. Dead-time control and frequency control are on-chip; no synchronous rectifier, so the secondary-side rectification is diode-based. The base product number is TL494. No official TI successor or cross-reference has been issued for this variant. ## How it compares to the UCC2806DWTR The UCC2806DWTR is a close functional peer also from TI: a PWM controller with 50% max duty cycle (vs. 45% on the TL494CPW) and synchronous rectifier capability (the TL494CPW lacks this). The UCC2806 runs from an 8V supply (vs. 7V–40V) and is specified over –40°C to 85°C, giving it a wider temperature envelope. If your design needs synchronous rectification or industrial temperature range, the UCC2806DWTR is the cleaner fit; the TL494CPW wins on supply-range flexibility and lower cost for commercial-grade builds.","metaTitle":"TL494CPW PWM Controller – Texas Instruments, Active","metaDescription":"TL494CPW PWM controller from TI, active production. 7V–40V supply, 1 kHz–300 kHz switching, 45% max duty cycle per output. 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":"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":"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-TSSOP","Voltage - Supply (Vcc/Vdd)":"7V ~ 40V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2600","priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.12600","currency":"USD"},{"qty":25,"price":"$1.06840","currency":"USD"},{"qty":100,"price":"$0.87770","currency":"USD"},{"qty":250,"price":"$0.82044","currency":"USD"},{"qty":500,"price":"$0.72504","currency":"USD"},{"qty":1000,"price":"$0.57240","currency":"USD"},{"qty":2500,"price":"$0.54000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c7861fe9c4cffdf82e84953a76a5ab14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL494CPW/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for TL494CPW?","answer":"The UCC2806DWTR is the nearest TI peer: same dual-output PWM controller function, 50% max duty cycle vs. 45%, and it adds synchronous rectifier support. However, its supply range is fixed at 8V (vs. 7V–40V) and it comes in a different package (16-SOIC). Confirm pin compatibility before substituting."},{"question":"What are the typical applications for TL494CPW?","answer":"Buck, boost, flyback, forward, half-bridge, full-bridge, and push-pull converters. Common in ATX power supplies, battery chargers, telecom DC-DC bricks, and industrial control supplies where the 7V–40V supply range and 1 kHz–300 kHz switching cover most rail voltages and transformer sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494CPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494CPW 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}}