{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLC5947RHBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLC5947RHBR","canonicalUrl":"https://icboms.com/texas-instruments/TLC5947RHBR","factsUrl":"https://icboms.com/api/mcp/products/TLC5947RHBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLC5947RHBR LED driver IC, Linear type, 24-channel constant-current sink, 30 mA per channel, 30 V output, Shift Register topology, 4 MHz clock, 32-VFQFN Exposed Pad package, Tape & Reel.","salesMarkdown":"## Active production — a current BOM fit The TLC5947RHBR: This 24-channel constant-current sink LED driver delivers 30 mA per channel with a 30 V output compliance voltage, which covers the forward voltage stack of most backlight and sign LED strings without an external boost stage. ## Shift-register interface and throughput The internal shift-register topology clocks at 4 MHz, which sets the serial data update rate for daisy-chained multi-device panels — at 24 bits per device, a single TLC5947 updates in 6 µs, so a chain of 16 devices refreshes in under 100 µs, well within a 60 Hz frame period. The 3 V to 5.5 V supply range lets the logic interface run directly from a 3.3 V MCU or a 5 V system rail without an external level shifter. ## Package and thermal path The 32-VQFN (5x5 mm) exposed-pad package (supplier device package 32-VQFN) requires a thermal via array under the centre pad to pull heat from the die to the PCB ground plane — the -40 °C to 85 °C ambient operating range is achievable only when the pad is properly soldered to a copper island. Surface-mount assembly with the exposed pad means the reflow profile must follow the QFN solder-paste stencil aperture recommendations to avoid voiding under the die attach pad. ## Regulatory and compliance ROHS3 compliant, so it clears the EU RoHS directive without an exemption declaration — no additional paperwork for the BOM reviewer.","metaTitle":"TLC5947RHBR LED Driver, 24-Channel, 30 mA, 32-VQFN","metaDescription":"Active-production TLC5947RHBR LED driver IC, 24 constant-current sink channels at 30 mA, 30 V output compliance, 32-VQFN package. ROHS3 compliant.","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","Frequency":"4MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"32-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Output":"30V","Number of Outputs":"24","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"3V","Supplier Device Package":"32-VQFN (5x5)","Current - Output / Channel":"30mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.22","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.22000","currency":"USD"},{"qty":10,"price":"$3.78900","currency":"USD"},{"qty":25,"price":"$3.58240","currency":"USD"},{"qty":100,"price":"$3.10460","currency":"USD"},{"qty":250,"price":"$2.94544","currency":"USD"},{"qty":500,"price":"$2.64292","currency":"USD"},{"qty":1000,"price":"$2.25300","currency":"USD"},{"qty":3000,"price":"$2.25300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3fc5c98b43758ea062132f03bb841fb3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current per channel on the TLC5947RHBR?","answer":"Each of the 24 channels sinks a constant 30 mA, set by an external resistor. The output compliance voltage goes up to 30 V, so you can stack multiple LEDs per channel within that headroom."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLC5947RHBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLC5947RHBR 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}}