{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL2842D-8","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL2842D-8","canonicalUrl":"https://icboms.com/texas-instruments/TL2842D-8","factsUrl":"https://icboms.com/api/mcp/products/TL2842D-8","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL2842D-8 PWM controller, Boost/Flyback/Forward topology, up to 500kHz switching, 97% duty cycle, 10V-30V supply, 8-SOIC package, -40°C to 85°C.","salesMarkdown":"## PWM controller for boost, flyback, and forward converters The TL2842D-8 is a fixed-frequency current-mode PWM controller from Texas Instruments, designed for step-up and step-up/step-down topologies including boost, flyback, and forward converters. It drives an external transistor with a single output and operates at switching frequencies up to 500kHz. The controller supports a wide supply range of 10V to 30V and delivers a maximum duty cycle of 97%, allowing high step-up ratios in flyback designs or wide input-voltage regulation in forward converters. Housed in an 8-SOIC surface-mount package, it is suited for industrial power supplies, telecom DC-DC modules, battery chargers, and auxiliary bias rails where a robust, simple controller is needed without synchronous rectification or clock synchronization. The 500kHz switching ceiling lets you shrink the magnetic components compared to a 100kHz design, but the controller lacks clock sync, so multiple units on the same board will beat unless you add external filtering or spread-spectrum techniques. The 97% duty cycle is a practical max — at high line or light load the controller will skip pulses before hitting that limit, which keeps the output in regulation without saturating the core. The 10V to 30V Vcc range covers standard 12V and 24V industrial buses with headroom for transients. This part is a standard production item through independent distribution — no supply-chain urgency beyond normal lead times. The TL2842D-8 is a current-production, ROHS3-compliant PWM controller in an 8-SOIC package. For dual-sourcing considerations, the UCC2806DWTR is a functional peer (current-mode, boost/flyback/forward) but carries a 50% duty cycle limit and two outputs — check the pinout and compensation network before substituting.","metaTitle":"TL2842D-8 PWM Controller, Boost/Flyback/Forward","metaDescription":"TL2842D-8 PWM controller from Texas Instruments. Step-Up/Step-Down, Boost/Flyback/Forward topology, 97% duty cycle, 10V-30V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, Forward","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"97%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"Up to 500kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"10V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.47","priceTiers":[{"qty":1,"price":"$1.47000","currency":"USD"},{"qty":10,"price":"$1.31300","currency":"USD"},{"qty":25,"price":"$1.24640","currency":"USD"},{"qty":100,"price":"$1.02400","currency":"USD"},{"qty":250,"price":"$0.95720","currency":"USD"},{"qty":500,"price":"$0.84588","currency":"USD"},{"qty":1000,"price":"$0.66780","currency":"USD"},{"qty":2500,"price":"$0.63000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/04bd2b839616d0c086e0d2dca2011cd3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL2842D-8/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TL2842 and TL2842D-8?","answer":"The TL2842D-8 is the surface-mount 8-SOIC variant of the TL2842. The TL2842 itself is typically a DIP-8 package. Functionally they are identical — same current-mode PWM controller, same 97% duty cycle, same 500kHz switching limit. The D-8 suffix designates the SOIC footprint."},{"question":"What are the applications of TL2842D-8?","answer":"Boost, flyback, and forward converters in industrial power supplies, telecom DC-DC modules, battery chargers, and auxiliary bias rails. The wide 10V-30V supply range and 97% duty cycle suit unregulated 24V bus inputs and high step-up ratio designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL2842D-8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL2842D-8 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}}