{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL594ING4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL594ING4","canonicalUrl":"https://icboms.com/texas-instruments/TL594ING4","factsUrl":"https://icboms.com/api/mcp/products/TL594ING4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL594ING4 PWM controller, 2 outputs, 97% max duty cycle, 1kHz-300kHz switching, 7V-40V supply, 16-PDIP, -40°C to 85°C, Tube.","salesMarkdown":"Its 97% maximum duty cycle means the output can ride within a few percent of the input rail — essential for a boost converter that must hold regulation as the input sags, or for a forward converter that needs to maximise volt-seconds on the transformer primary. The part is in a 16-pin PDIP through-hole package, suited for prototyping, low-volume production, and designs where rework ease matters more than board density. ## Switching frequency and supply — sizing the passives The switching frequency spans 1 kHz to 300 kHz. The supply range of 7 V to 40 V covers standard industrial buses. ## Control features and temperature grade Dead-time control and frequency control are on-chip, letting you set the overlap between the two output phases and synchronise the oscillator to an external clock if needed — though the part does not include a dedicated clock-sync pin, so synchronisation is done by injecting a signal into the RT/CT pin. No synchronous rectifier driver is included, so the output stage uses Schottky or ultrafast diodes on the secondary side. The 16-PDIP package ships in tube form, which is typical for through-hole ICs in production runs and prototyping alike.","metaTitle":"TL594ING4 PWM Controller, 97% Duty Cycle, 16-PDIP","metaDescription":"Texas Instruments TL594ING4 PWM controller with 97% max duty cycle, 1kHz-300kHz switching, 7V-40V supply. Active lifecycle, industrial temp range.","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)":"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-PDIP","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/TL594ING4/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum duty cycle of TL594ING4?","answer":"The maximum duty cycle is 97%. This allows the output to regulate very close to the input rail, which is critical in boost and forward-converter designs that need to maintain output voltage as the input drops."},{"question":"Does TL594ING4 support external synchronization?","answer":"The TL594ING4 does not have a dedicated clock-sync pin. External synchronization can be achieved by injecting a synchronising signal into the RT/CT timing pin, but the part does not include a built-in clock-sync function."},{"question":"Is TL594ING4 pin compatible with TL494?","answer":"The TL594 is a functional upgrade of the TL494 with improved dead-time control and a higher maximum duty cycle. The pinout is the same 16-pin PDIP layout, so TL594ING4 is a drop-in replacement for TL494 in most designs, provided the supply voltage and frequency range match the application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL594ING4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL594ING4 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}}