{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TFA9879HN/N1,157","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"TFA9879HN-N1157","canonicalUrl":"https://icboms.com/nxp/TFA9879HN-N1157","factsUrl":"https://icboms.com/api/mcp/products/TFA9879HN%2FN1%2C157","rawCanonicalId":null},"summary":{"shortDescription":"NXP TFA9879HN/N1,157 Class D mono audio amplifier, 2.75W into 4Ω, 2.5V–5.5V supply, I²S/I²C digital input, 24-HVQFN (4x4 mm), -20°C to 85°C.","salesMarkdown":"The TFA9879HN/N1,157 delivers 2.75 W continuous into a 4 Ω load from a single mono channel. That output level suits small speakers in portable speakers, soundbars, IoT voice assistants, and battery-powered audio devices where a few watts of clean audio are enough. ## Digital audio interface and control Audio data enters via I²S, a standard serial interface that connects directly to most SoCs and audio codecs without an external DAC. The I²C bus handles volume, tone control, mute, and the depop (pop-free) startup sequence — all programmable, which saves board space compared to analog-controlled amps. Short-circuit and thermal protection are built in, so the amp can survive a speaker-wire short or a stalled airflow condition without latching up. ## Package and thermal management The 24-VFQFN with exposed pad (4x4 mm body) is the standard land pattern for this class of audio amp.","metaTitle":"TFA9879HN/N1,157 Class D Mono Amp, 2.75W into 4Ω","metaDescription":"NXP TFA9879HN/N1,157 Class D mono audio amplifier, 2.75W into 4Ω, 2.5V–5.5V supply, I²S/I²C, 24-HVQFN. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Class D","Package":"Tray","Features":"Depop, Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Tone and Volume Control","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"24-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Operating Temperature":"-20°C ~ 85°C (TA)","Supplier Device Package":"24-HVQFN (4x4)","Max Output Power x Channels @ Load":"2.75W x 1 @ 4Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.49000","currency":"USD"},{"qty":10,"price":"$2.23500","currency":"USD"},{"qty":25,"price":"$2.10800","currency":"USD"},{"qty":80,"price":"$1.79613","currency":"USD"},{"qty":230,"price":"$1.68648","currency":"USD"},{"qty":440,"price":"$1.47568","currency":"USD"},{"qty":945,"price":"$1.22271","currency":"USD"},{"qty":2450,"price":"$1.13839","currency":"USD"},{"qty":4900,"price":"$1.09622","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2528e7adfe9be45813f7fd6e8257a5d5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of TFA9879HN?","answer":"The TFA9879HN delivers 2.75 W into a 4 Ω load from a single mono channel. That is the rated maximum output power per channel at the specified load impedance."},{"question":"What is the equivalent of TFA9879HN?","answer":"The TFA9879HN is a mono Class D amp with I²S/I²C digital input — any alternative would need to match the 24-HVQFN footprint, the 2.75 W output into 4 Ω, and the digital interface. Check the NXP product selector for the latest cross-reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/TFA9879HN-N1157","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/TFA9879HN-N1157 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}}