{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL2842BD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL2842BD","canonicalUrl":"https://icboms.com/texas-instruments/TL2842BD","factsUrl":"https://icboms.com/api/mcp/products/TL2842BD","rawCanonicalId":null},"summary":{"shortDescription":"ON Semiconductor TL2842BD current-mode PWM controller, boost/flyback/forward topology, 1 output, transistor driver, up to 500 kHz switching, 96% max duty cycle, 14-SOIC surface mount, -40 to 85°C operating temperature.","salesMarkdown":"## 500 kHz current-mode PWM controller for boost, flyback, and forward converters The ON Semiconductor TL2842BD is a current-mode PWM controller designed for step-up and step-up/step-down topologies including boost, flyback, and forward converters. It delivers a single transistor-driver output with a maximum duty cycle of 96%, allowing wide conversion ratios without an extra winding or charge pump. The switching frequency runs up to 500 kHz, which lets the designer shrink the transformer and output filter magnetics compared to lower-frequency controllers — useful for space-constrained industrial power supplies, bias rails in motor drives, and isolated telecom converters. ## Supply voltage and control features The controller operates from a 10 V to 30 V Vcc supply, so it needs a bias rail above 10 V — not a 5 V-only bus. A frequency-control pin is provided for external timing adjustment, but the part does not include clock synchronization or synchronous rectification, so the designer handles multi-phase alignment externally and uses a freewheeling diode on the output. The output configuration is positive, and the output type is a transistor driver, meaning the gate-drive signal is intended to drive an external power switch (typically a MOSFET) through a series resistor. ## Industrial temperature grade and package Rated for -40°C to 85°C ambient operation, the TL2842BD fits factory automation, outdoor telecom cabinets, and motor-drive control boards where the interior temperature stays within that range. The part comes in a 14-SOIC surface-mount package with a 3.90 mm body width, which is a common footprint for this class of PWM controller and easy to route on a two-layer board. ## Lifecycle and sourcing The TL2842BD carries an Active product status and is ROHS3 compliant. No official second-source alternate is listed in the manufacturer's cross-reference, but the UCC2806DWTR is a functional peer with a 50% duty-cycle limit and dual outputs, suited for designs that need synchronous rectification or two-phase operation.","metaTitle":"TL2842BD PWM Controller, Boost/Flyback/Forward","metaDescription":"TL2842BD current-mode PWM controller for boost, flyback, forward converters. Switching frequency up to 500 kHz, 96% duty cycle, 10-30 V supply, -40 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":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"96%","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":"14-SOIC","Voltage - Supply (Vcc/Vdd)":"10V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.34","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.34000","currency":"USD"},{"qty":10,"price":"$1.20100","currency":"USD"},{"qty":25,"price":"$1.13960","currency":"USD"},{"qty":100,"price":"$0.93620","currency":"USD"},{"qty":250,"price":"$0.87512","currency":"USD"},{"qty":500,"price":"$0.77338","currency":"USD"},{"qty":1000,"price":"$0.61056","currency":"USD"},{"qty":2500,"price":"$0.57600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f450aa6242c0dd363ceebc87ffbffd81.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the TL2842BD alternatives or equivalents?","answer":"The UCC2806DWTR is a functional peer with a 50% duty-cycle limit and dual outputs, suitable for designs needing synchronous rectification or two-phase operation. No pin-compatible second source is listed on the manufacturer's cross-reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL2842BD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL2842BD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}