{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC5954RTQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC5954RTQR","canonicalUrl":"https://icboms.com/texas-instruments/TLC5954RTQR","factsUrl":"https://icboms.com/api/mcp/products/TLC5954RTQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLC5954RTQR linear LED driver, shift register topology, 48 outputs, 24.4/34.9mA per channel, 10V output, 56-VFQFN exposed pad package, tape and reel.","salesMarkdown":"## 48-channel constant-current sink for signage backplanes The TLC5954RTQR is a 48-channel linear LED driver from Texas Instruments, built around a shift-register topology and designed for signage applications. Each of the 48 outputs sinks either 24.4 mA or 34.9 mA, selectable per channel, with a 10 V output compliance that gives headroom for series LED strings in large-format displays. Operating from a 3.0 V to 3.6 V supply rail, the driver accepts serial data and clocks it through the shift register, latching the output state on the rising edge of the latch signal. This makes it a direct fit for multiplexed or static-drive LED panels where the controller feeds pixel data over a few signal lines rather than one line per LED. ## Output current selection and thermal budget The two current settings — 24.4 mA and 34.9 mA — are set by an external resistor on the IREF pin. At 34.9 mA per channel, all 48 channels active simultaneously dissipate roughly 1.68 W in the driver (48 × 34.9 mA × 1.0 V dropout typical), which the 56-QFN exposed pad must conduct to the PCB copper plane. The -40°C to 85°C ambient range covers indoor signage and most outdoor cabinet environments, but the thermal pad solder joint and via array under the package determine the real junction temperature at full load. The 56-VFQFN package (8 mm × 8 mm) with exposed pad requires a thermal land pattern on the PCB — the datasheet's recommended footprint includes a 5.2 mm × 5.2 mm pad with a 3 × 3 via matrix to the ground plane. Without that thermal via cluster, the driver derates above 60°C ambient at full channel count. ## Active production and sourcing posture The TLC5954RTQR carries an active product status from Texas Instruments. It is ROHS3 compliant, which covers the EU RoHS exemption list through the latest revision. Sourced to order against BOM quantities through independent distribution channels.","metaTitle":"TLC5954RTQR LED Driver, 48-Channel, 24.4/34.9mA, 56-QFN","metaDescription":"Active-production TLC5954RTQR linear LED driver from TI, 48 outputs at 24.4/34.9mA per channel, shift-register topology, 56-QFN package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Shift Register","Applications":"Signage","Mounting Type":"Surface Mount","Package / Case":"56-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Output":"10V","Number of Outputs":"48","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"3.6V","Voltage - Supply (Min)":"3V","Supplier Device Package":"56-QFN (8x8)","Current - Output / Channel":"24.4mA, 34.9mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.89000","currency":"USD"},{"qty":10,"price":"$4.39500","currency":"USD"},{"qty":25,"price":"$4.15480","currency":"USD"},{"qty":100,"price":"$3.60070","currency":"USD"},{"qty":250,"price":"$3.41608","currency":"USD"},{"qty":500,"price":"$3.06522","currency":"USD"},{"qty":1000,"price":"$2.61300","currency":"USD"},{"qty":2000,"price":"$2.61300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/82c6b7656701f4a58ae9c1230ec1af65.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for TLC5954RTQR?","answer":"Submit an RFQ through this listing. The part is sourced to order against your BOM quantity; pricing and lead time are confirmed at quote time through independent distribution channels."},{"question":"Will TLC5954RTQR drop into a board designed for TLC5940RHBR?","answer":"No — the TLC5940RHBR has 16 outputs at 120 mA per channel, while the TLC5954RTQR has 48 outputs at 24.4/34.9 mA. The pinout, package (56-QFN vs 32-QFN), and serial protocol differ. A board spin is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC5954RTQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC5954RTQR 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}}