{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC59281DBQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC59281DBQR","canonicalUrl":"https://icboms.com/texas-instruments/TLC59281DBQR","factsUrl":"https://icboms.com/api/mcp/products/TLC59281DBQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLC59281DBQR, Linear LED Driver with Shift Register, 16 outputs, 35 mA per channel, 35 MHz clock, 3 V to 5.5 V supply, -40°C to 85°C, 24-SSOP package.","salesMarkdown":"## 16-channel constant-current sink with shift register The TLC59281DBQR is a linear LED driver from Texas Instruments that integrates a 35 MHz shift register and 16 constant-current sink outputs, each rated for 35 mA. It operates from a 3 V to 5.5 V supply and drives LEDs with an output voltage rating of 17 V. The internal switches eliminate external driver transistors, saving board space in multiplexed or direct-drive LED arrays. Typical applications include industrial panel indicators, signage, and telecom equipment status lights where a serial interface reduces I/O count on the host controller. ## 35 mA per channel — what it means for the BOM Each of the 16 outputs sinks 35 mA continuously, enough to drive standard through-hole or SMD LEDs at full brightness without external current-setting resistors. The constant-current regulation holds the LED current steady across supply and temperature shifts, so the BOM can skip per-channel ballast resistors. If your design needs more than 35 mA per channel, this part is not the fit — look at a higher-current sink driver or add an external transistor stage. ## 35 MHz shift clock — update rate and bus timing The 35 MHz shift register clock updates all 16 outputs. The serial interface daisy-chains for multiple devices. ## Industrial temperature range and package Rated for -40°C to 85°C ambient, the TLC59281DBQR fits outdoor telecom cabinets, factory-floor HMI panels, and unconditioned enclosures. The 24-SSOP package (3.90 mm body width) is a common footprint for serial-input LED drivers; it routes easily on a two-layer board. The surface-mount package suits automated assembly lines, and the ROHS3 compliance avoids restricted-substance restrictions in EU and other regulated markets. ## Sourcing and lifecycle That means no last-time-buy pressure for new designs or ongoing BOMs. The ROHS3 compliance is current, so no exemption expiry to track for European markets.","metaTitle":"TLC59281DBQR LED Driver, 16-Channel 35 mA, 24-SSOP","metaDescription":"TLC59281DBQR linear LED driver with shift register, 16 outputs at 35 mA each, 35 MHz clock, 3-5.5 V supply, -40 to 85°C, 24-SSOP. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Shift Register","Frequency":"35MHz","Mounting Type":"Surface Mount","Package / Case":"24-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Output":"17V","Number of Outputs":"16","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"3V","Supplier Device Package":"24-SSOP","Current - Output / Channel":"35mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.18200","currency":"USD"},{"qty":25,"price":"$1.12200","currency":"USD"},{"qty":100,"price":"$0.92160","currency":"USD"},{"qty":250,"price":"$0.86148","currency":"USD"},{"qty":500,"price":"$0.76130","currency":"USD"},{"qty":1000,"price":"$0.60102","currency":"USD"},{"qty":2500,"price":"$0.56700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d4ce968742c2ea628635fba45faa4376.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum output current per channel of TLC59281DBQR?","answer":"Each of the 16 outputs is rated for 35 mA constant-current sink. The internal regulation holds that current steady across the 3 V to 5.5 V supply range and the -40°C to 85°C temperature range."},{"question":"Does TLC59281DBQR have a direct replacement or equivalent?","answer":"There is no pin-compatible second source listed for the TLC59281DBQR. The LM2703MF-ADJ/NOPB is a different class of part — a boost regulator for backlight applications, not a multi-channel linear sink driver — so it is not a functional equivalent. For a replacement, verify the exact footprint and output current requirements against the original design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC59281DBQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC59281DBQR 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}}