{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPA731DGN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPA731DGN","canonicalUrl":"https://icboms.com/texas-instruments/TPA731DGN","factsUrl":"https://icboms.com/api/mcp/products/TPA731DGN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPA731DGN, Class AB mono audio amplifier, 700mW x 1 @ 8Ohm output, supply 2.5V~5.5V, operating -40°C~85°C, 8-HVSSOP exposed-pad package, surface mount, shutdown and protection features.","salesMarkdown":"## 700 mW mono Class AB — what the output power rating tells you That 700 mW figure is the maximum output power per channel at 10% THD into 8 Ω — enough to drive a small speaker in a portable radio, intercom, or alarm panel. The supply range means it runs directly from a single lithium cell (3.6 V nominal) or a 5 V rail without a separate audio regulator. The 8-HVSSOP package includes an exposed thermal pad; without a proper via-stitched copper pour on the PCB, the junction temperature will exceed the limit at full output in a warm enclosure. A heatsink is not required if the board provides at least 1 square inch of 1-oz copper on the pad's layer — but that copper area is the heatsink. ## Protection features save board space Integrated short-circuit protection, thermal shutdown, and a shutdown pin let you omit external protection diodes or a supervisor IC. The thermal shutdown kicks in at approximately 150°C junction, which protects against a sustained output short but also means the thermal pad design must be adequate — otherwise the part will cycle in and out of shutdown during normal high-volume playback.","metaTitle":"TPA731DGN Class AB Mono Amplifier, 700mW into 8Ω","metaDescription":"Texas Instruments TPA731DGN, Class AB mono audio amplifier, 700mW x 1 @ 8Ohm, 2.5V to 5.5V supply, -40°C to 85°C, 8-HVSSOP with exposed pad.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Class AB","Package":"Tube","Features":"Differential Inputs, Short-Circuit and Thermal Protection, Shutdown","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-HVSSOP","Max Output Power x Channels @ Load":"700mW x 1 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.90000","currency":"USD"},{"qty":10,"price":"$2.60100","currency":"USD"},{"qty":25,"price":"$2.45880","currency":"USD"},{"qty":100,"price":"$2.13110","currency":"USD"},{"qty":250,"price":"$2.02180","currency":"USD"},{"qty":500,"price":"$1.81414","currency":"USD"},{"qty":1000,"price":"$1.54650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b44459939e13e5a73dd8ff9de0c3f234.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of the TPA731DGN?","answer":"The TPA731DGN delivers 700 mW maximum output power into an 8 Ω load, 1-channel mono, Class AB."},{"question":"Does TPA731DGN require a heatsink?","answer":"It does not require a separate heatsink if the PCB provides adequate copper area on the exposed thermal pad — typically at least 1 square inch of 1-oz copper."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPA731DGN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPA731DGN 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}}