{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9531D,118","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"PCA9531D~6118","canonicalUrl":"https://icboms.com/nxp/PCA9531D~6118","factsUrl":"https://icboms.com/api/mcp/products/PCA9531D%2C118","rawCanonicalId":null},"summary":{"shortDescription":"NXP Semiconductors PCA9531D,118 I²C-bus 8-bit LED driver, Linear type, 25 mA per channel, 2.3 V to 5.5 V supply, 16-SOIC package, Tape & Reel.","salesMarkdown":"## Active lifecycle — BOM-fit for new designs The PCA9531D,118: ROHS3 compliant — no exemption-based restrictions on the BOM for global markets requiring full RoHS conformance. ## 8-channel I²C-bus LED driver — 25 mA per channel This is an I²C-bus 8-bit LED driver with linear constant-current outputs. Each of the eight channels sinks up to 25 mA, set by an external resistor — the total output current is programmable via the I²C interface, allowing per-channel PWM dimming without additional processor overhead. Internal switches are integrated — no external driver FETs needed for the LED current path; the part handles the switching internally. Suitable for outdoor-rated backlight units, automotive cabin lighting (non-engine bay), and industrial control panels where ambient stays within this band. ## 16-SOIC surface-mount package Surface-mount assembly — standard SOIC footprint with 1.27 mm pitch, compatible with reflow soldering. CT works for prototyping or small-batch runs. ## Target application: backlight dimming The PCA9531D,118 is specifically listed for backlight applications — common in LCD panel backlighting, keypad illumination, and indicator arrays where I²C-controlled dimming simplifies the host firmware. Each channel's PWM duty cycle is set via the I²C bus, so a single microcontroller I²C port can manage eight independent LED strings without dedicated PWM timer pins.","metaTitle":"NXP PCA9531D,118 LED Driver, 8-Ch I²C, 25mA, 16-SOIC","metaDescription":"NXP PCA9531D,118 I²C-bus 8-bit LED driver, 25 mA per channel, 2.3-5.5 V supply, -40 to 85°C. Active, RoHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Linear","Dimming":"I²C","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Outputs":"8","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.3V","Supplier Device Package":"16-SO","Current - Output / Channel":"25mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.85","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.85000","currency":"USD"},{"qty":10,"price":"$2.55700","currency":"USD"},{"qty":25,"price":"$2.41720","currency":"USD"},{"qty":100,"price":"$2.09500","currency":"USD"},{"qty":250,"price":"$1.98756","currency":"USD"},{"qty":500,"price":"$1.78344","currency":"USD"},{"qty":1000,"price":"$1.69851","currency":"USD"},{"qty":2500,"price":"$1.69851","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/856da986fdea7be7bde7fdd87cec3f9d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is PCA9531D,118's listed type and dimming method?","answer":"The type is Linear (constant-current sink), and dimming is controlled via the I²C bus — each of the eight outputs can be set to a PWM duty cycle independently."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/PCA9531D~6118","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/PCA9531D~6118 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}}