{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UC2842BN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"UC2842BN","canonicalUrl":"https://icboms.com/stmicroelectronics/UC2842BN","factsUrl":"https://icboms.com/api/mcp/products/UC2842BN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics UC2842BN current-mode PWM controller, boost/flyback topology, 96% max duty cycle, up to 500 kHz switching, 10-30V supply, through-hole 8-DIP, -25°C to 85°C.","salesMarkdown":"## Current-mode PWM controller for boost and flyback converters The STMicroelectronics UC2842BN is a current-mode PWM controller designed for boost and flyback converter topologies. It integrates a transistor driver output, frequency control, and positive output configuration capable of isolation. ## Through-hole DIP package and temperature grade Housed in an 8-pin DIP (0.300\", 7.62 mm) through-hole package, the UC2842BN is suited for prototyping, low-volume builds, and designs where wave soldering or hand assembly is preferred over SMT. ## Active lifecycle — no immediate obsolescence risk ROHS3 compliance covers current regulatory requirements for lead-free assembly.","metaTitle":"UC2842BN PWM Controller, Boost/Flyback, 96% Duty, 8-DIP","metaDescription":"UC2842BN current-mode PWM controller for boost and flyback topologies. Up to 500 kHz switching, 96% duty cycle, 10-30V supply. Through-hole 8-DIP.","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","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Through Hole","Output Phases":"1","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Control Features":"Frequency Control","Duty Cycle (Max)":"96%","Number of Outputs":"1","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"Up to 500kHz","Operating Temperature":"-25°C ~ 85°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"8-Mini DIP","Voltage - Supply (Vcc/Vdd)":"10V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.29","priceTiers":[{"qty":1,"price":"$1.29000","currency":"USD"},{"qty":10,"price":"$1.14900","currency":"USD"},{"qty":25,"price":"$1.09040","currency":"USD"},{"qty":100,"price":"$0.89570","currency":"USD"},{"qty":250,"price":"$0.83732","currency":"USD"},{"qty":500,"price":"$0.73994","currency":"USD"},{"qty":1000,"price":"$0.64295","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a1e92e6bbc45d0f8e3020163c44f39c7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/UC2842BN/alternatives.json"},"ai":{"faq":[{"question":"Can UC2842BN be used as a direct replacement for UC2843BN?","answer":"The UC2842BN and UC2843BN are pin-compatible current-mode PWM controllers. The key difference is the undervoltage lockout (UVLO) thresholds: the UC2842BN has a 16 V turn-on / 10 V turn-off threshold, while the UC2843BN uses 8.5 V / 7.6 V. They are not drop-in replacements without checking the supply rail and UVLO behavior in the existing design."},{"question":"What is the maximum duty cycle of UC2842BN?","answer":"The UC2842BN supports a maximum duty cycle of 96%. This allows the controller to maintain regulation at high step-up ratios in boost and flyback topologies without pulse-skipping or mode hopping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/UC2842BN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/UC2842BN 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}}