{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ULQ2003ADR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ULQ2003ADR","canonicalUrl":"https://icboms.com/texas-instruments/ULQ2003ADR","factsUrl":"https://icboms.com/api/mcp/products/ULQ2003ADR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ULQ2003ADR, Series ULx200xA, 7-channel NPN low-side driver, 50V load, 500mA per output, inverting inputs, 16-SOIC, -40 to 85°C.","salesMarkdown":"## What this driver does and where it fits The Texas Instruments ULQ2003ADR is a 7-channel NPN Darlington transistor array from the ULx200xA series, designed as a low-side switch for inductive loads. Each of the seven outputs sinks up to 500 mA and handles a load voltage up to 50 V, making it a direct fit for driving relays, solenoids, stepper motors, and incandescent lamps in industrial control panels, PLC output stages, and automotive body electronics. The inverting input polarity means a logic low on the input turns the output on — standard for microcontroller GPIO that defaults high at reset, preventing unintended load activation during power-up. ## 500 mA per channel — what it means for your load budget The 500 mA per-output rating is the absolute maximum; running all seven channels simultaneously at full current pushes the package dissipation past the SOIC's thermal limit. For continuous duty, derate per channel or limit the number of active outputs. ## Temperature range and environment Rated for -40°C to 85°C ambient, the ULQ2003ADR fits unheated factory floors, outdoor telecom cabinets, and engine-bay-adjacent enclosures. The 16-SOIC package (3.90 mm body width) is a standard footprint for automated pick-and-place; the surface-mount form saves board space compared to the through-hole DIP version of the same driver array. ## Lifecycle and sourcing No second-source alternate is listed in the official cross-reference.","metaTitle":"ULQ2003ADR NPN Relay Driver, 50V 500mA, 16-SOIC","metaDescription":"ULQ2003ADR from the ULx200xA series: 7-channel NPN low-side driver, 50V max load, 500mA per output, -40 to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"ULx200xA","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"ULx200xA","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"Parallel","Input Type":"Inverting","Output Type":"NPN","Switch Type":"Relay, Solenoid Driver","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Voltage - Load":"50V (Max)","lifecycle_stage":"eol_hot","Number of Outputs":"7","Output Configuration":"Low Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"500mA","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.60000","currency":"USD"},{"qty":10,"price":"$0.52500","currency":"USD"},{"qty":100,"price":"$0.40230","currency":"USD"},{"qty":500,"price":"$0.31800","currency":"USD"},{"qty":1000,"price":"$0.25440","currency":"USD"},{"qty":2500,"price":"$0.23055","currency":"USD"},{"qty":5000,"price":"$0.22500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/47159ae4a134e60382767c37551a2317.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between ULQ2003ADR and ULN2003?","answer":"The ULQ2003ADR is the surface-mount 16-SOIC version of the same Darlington array; the ULN2003 is typically the through-hole DIP variant. Both share the same 7-channel NPN low-side driver with 50 V, 500 mA ratings and integral clamping diodes. The choice is footprint — SOIC for automated assembly, DIP for breadboard or hand-wired prototypes."},{"question":"Does ULQ2003ADR include clamping diodes?","answer":"Yes, the ULQ2003ADR includes integral flyback (clamping) diodes across each output, so no external diode is needed when driving inductive loads like relays or solenoids."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ULQ2003ADR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ULQ2003ADR 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}}