{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPA3121D2PWP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPA3121D2PWP","canonicalUrl":"https://icboms.com/texas-instruments/TPA3121D2PWP","factsUrl":"https://icboms.com/api/mcp/products/TPA3121D2PWP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPA3121D2PWP, Class D audio amplifier IC, 30W x 1 @ 8Ω mono or 15W x 2 @ 4Ω stereo, 10V–26V supply, -40°C to 85°C, 24-HTSSOP exposed-pad package, Tube.","salesMarkdown":"## Mono or stereo wiring — one chip, two topologies For stereo operation, wire each channel to its own 4 Ω speaker — the part delivers 15 W per side. For mono, bridge the outputs into a single 8 Ω load for 30 W. The datasheet application diagrams show the BTL (bridged) connection for mono and the single-ended filter for stereo. The mute and shutdown pins are active-low; pull them to ground to disable the output, or leave them pulled up through a resistor for normal operation. The depop circuit ramps the output bias slowly on startup, so you don't get a thump into the speaker. ## Active, ROHS3, sourced to order","metaTitle":"TPA3121D2PWP Class D Audio Amp IC, 30W Mono / 15W Stereo","metaDescription":"TI TPA3121D2PWP Class D amplifier IC: 30W mono into 8Ω or 15W stereo into 4Ω. 10-26V supply, industrial temp, integrated protection. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class D","Package":"Tube","Features":"Depop, Mute, Short-Circuit and Thermal Protection, Shutdown","Output Type":"1-Channel (Mono) or 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 26V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-HTSSOP","Max Output Power x Channels @ Load":"30W x 1 @ 8Ohm; 15W x 2 @ 4Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.47","priceTiers":[{"qty":1,"price":"$5.47000","currency":"USD"},{"qty":10,"price":"$4.91400","currency":"USD"},{"qty":25,"price":"$4.64600","currency":"USD"},{"qty":100,"price":"$4.02650","currency":"USD"},{"qty":250,"price":"$3.82004","currency":"USD"},{"qty":500,"price":"$3.42770","currency":"USD"},{"qty":1000,"price":"$2.92200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7838dddb25a3cec3cc0f7ad5af546868.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPA3121D2PWP/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TPA3121D2PWP and TPA3121D2?","answer":"The TPA3121D2PWP is the same die in a 24-HTSSOP exposed-pad package (PowerPAD), while TPA3121D2 refers to the standard 24-TSSOP non-exposed-pad variant. The PWP suffix indicates the PowerPAD package, which improves thermal dissipation for higher continuous output power."},{"question":"Is TPA3121D2PWP a direct replacement for TPA3121D2?","answer":"Yes, the TPA3121D2PWP is pin-compatible with the TPA3121D2. The PWP version adds an exposed thermal pad for better heat transfer. In a design originally laid out for the standard TSSOP, the PWP version fits the same footprint — just ensure the PCB has a copper pad under the part for the exposed pad to solder to."},{"question":"Does TPA3121D2PWP require an external heatsink?","answer":"At 30 W mono into 8 Ω, the exposed pad on the 24-HTSSOP package can dissipate roughly 2-3 W into a good copper pour. For continuous full-power operation, a small clip-on heatsink or a larger board copper area is recommended. At 15 W stereo into 4 Ω, the pad alone may suffice with adequate airflow."},{"question":"How do I wire TPA3121D2PWP for stereo operation?","answer":"For stereo, connect each channel's output through an LC filter (typically 10 µH + 0.47 µF) to a 4 Ω speaker. The left channel uses the OUTL+ and OUTL- pins; the right channel uses OUTR+ and OUTR-. Leave the BTL (bridge-tied load) configuration for mono only. The datasheet application schematic shows the filter component values."},{"question":"How to configure TPA3121D2PWP for mono output?","answer":"For mono, bridge the two channels by connecting the speaker between OUTL+ and OUTR- (or the complementary pair), and drive both channels with the same input signal. This BTL configuration delivers 30 W into an 8 Ω load. The datasheet provides the exact pin connections."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPA3121D2PWP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPA3121D2PWP 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}}