{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL3845D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL3845D","canonicalUrl":"https://icboms.com/texas-instruments/TL3845D","factsUrl":"https://icboms.com/api/mcp/products/TL3845D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL3845D, Automotive AEC-Q100 PWM controller, step-up/step-up/step-down, boost/flyback/forward converter topology, 100 kHz switching frequency, 48% max duty cycle, 14-SOIC surface-mount package.","salesMarkdown":"## Multi-topology PWM controller with AEC-Q100 grade The TL3845D is a current-mode PWM controller from Texas Instruments, part of the Automotive AEC-Q100 series. It supports boost, flyback, and forward converter topologies, making it a flexible choice for isolated and non-isolated DC-DC stages in automotive-grade power supplies. Switching at a fixed 100 kHz, the controller delivers a single transistor-driver output with a maximum duty cycle of 48%. The supply range spans 7.6 V to 30 V, and the device operates over a commercial temperature range of 0°C to 70°C. The tube packaging is typical for prototype and low-volume builds; for reels, check the alternate order codes. The 100 kHz fixed frequency simplifies EMI filter design — the fundamental and its harmonics fall in a predictable band. No clock sync input means the switching frequency cannot be slaved to an external oscillator; plan for a standalone power stage. ## Lifecycle and compliance The commercial temperature range (0°C to 70°C) limits it to ambient or conditioned environments — not suitable for extended high-temp or engine-bay use without thermal analysis.","metaTitle":"TL3845D Texas Instruments PWM Controller, 100 kHz, 14-SOIC","metaDescription":"Texas Instruments TL3845D PWM controller, 100 kHz fixed frequency, 48% max duty cycle, 7.6-30 V supply. Active, RoHS3 compliant. AEC-Q100 qualified.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tube","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, Forward Converter","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)":"48%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz","Operating Temperature":"0°C ~ 70°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"14-SOIC","Voltage - Supply (Vcc/Vdd)":"7.6V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.18000","currency":"USD"},{"qty":10,"price":"$1.05100","currency":"USD"},{"qty":25,"price":"$0.99720","currency":"USD"},{"qty":100,"price":"$0.81920","currency":"USD"},{"qty":250,"price":"$0.76576","currency":"USD"},{"qty":500,"price":"$0.67670","currency":"USD"},{"qty":1000,"price":"$0.53424","currency":"USD"},{"qty":2500,"price":"$0.50400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/04bd2b839616d0c086e0d2dca2011cd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for the TL3845D?","answer":"The TL3845D is not pin-compatible with the UCC2806DWTR — the 14-SOIC footprint is the same, but the pin functions differ. A board spin is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL3845D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL3845D 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}}