{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL494CNG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL494CNG4","canonicalUrl":"https://icboms.com/texas-instruments/TL494CNG4","factsUrl":"https://icboms.com/api/mcp/products/TL494CNG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL494CNG4 PWM controller, multi-topology buck/boost/flyback/push-pull, 1kHz-300kHz switching, 7V-40V supply, 45% max duty cycle, 2 outputs, PDIP-16, 0°C-70°C.","salesMarkdown":"## Multi-topology PWM controller in a socketable PDIP-16 The TL494CNG4 is a fixed-frequency PWM controller that handles step-up, step-down, and step-up/step-down topologies, covering buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull configurations. With a wide supply range of 7V to 40V and switching frequency from 1kHz to 300kHz, it fits industrial power supplies, battery chargers, and motor drives. The 16-pin PDIP package means you can socket it on a through-hole board — no hot-air station needed for a field swap. ## Two outputs, 45% duty cycle, dead-time control Two transistor-driver outputs with a maximum duty cycle of 45% per output, plus dead-time control and frequency control pins let you set the switching behaviour for push-pull or half-bridge designs. Output configuration is positive, and there is no synchronous rectifier built in — you add external Schottky or FETs for the low-side. The 45% ceiling per channel is a hard limit for push-pull stages; plan the transformer turns ratio accordingly.","metaTitle":"TL494CNG4 PWM Controller, 1kHz-300kHz, 7V-40V, PDIP-16","metaDescription":"TL494CNG4 PWM controller from Texas Instruments. Multi-topology buck/boost/flyback, 7V-40V supply, 45% max duty cycle, 2 outputs, PDIP-16.","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":"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":"Through Hole","Output Phases":"1","Package / Case":"16-DIP (0.300\\\", 7.62mm)","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-PDIP","Voltage - Supply (Vcc/Vdd)":"7V ~ 40V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c7861fe9c4cffdf82e84953a76a5ab14.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL494CNG4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TL494CNG4 and TL494CN?","answer":"Both are the same base PWM controller. The TL494CNG4 is the lead-free / RoHS-compliant variant of the TL494CN. Pin-compatible, same electrical specs — the G4 suffix indicates green (RoHS) plating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL494CNG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL494CNG4 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}}