{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ULQ2003ATDQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ULQ2003ATDQ1","canonicalUrl":"https://icboms.com/texas-instruments/ULQ2003ATDQ1","factsUrl":"https://icboms.com/api/mcp/products/ULQ2003ATDQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ULQ2003ATDQ1, Automotive AEC-Q100, 7-channel low-side NPN relay/solenoid driver, 500 mA per output, 50V load, 16-SOIC, tube.","salesMarkdown":"## Driving inductive loads in automotive boards The ULQ2003ATDQ1 is a 7-channel low-side NPN driver array from Texas Instruments, part of the Automotive AEC-Q100 series. It is designed to switch relay coils, solenoids, and small inductive loads directly from a microcontroller's logic outputs, with each channel sinking up to 500 mA at a maximum load voltage of 50 V. The inverting input logic and 1:1 input-to-output ratio mean a logic-high on the input turns the output on — no extra inversion stage needed in the firmware or external logic. ## Current per channel and thermal budget Each of the seven outputs is rated for 500 mA continuous. In a typical relay-driving application where each relay coil draws 100-200 mA, the total package dissipation stays within the SOIC's thermal limits even when all channels are active simultaneously. The 50 V maximum load voltage gives headroom for 12 V and 24 V automotive relay coils, including the inductive flyback spike that the integrated clamp diodes handle. No external Vcc supply is required for the driver logic — the input pins are directly compatible with 5 V logic families, including standard CMOS and TTL outputs. The parallel interface simplifies PCB routing: each input connects straight to a GPIO pin without level-shifting components. The part is supplied in tube packaging, 16-SOIC (0.154-inch width, 3.90 mm body). The supplier device package is 16-SOIC, surface-mount, with a standard footprint that matches the industry-wide SOIC-16 land pattern.","metaTitle":"ULQ2003ATDQ1 Texas Instruments Relay Solenoid Driver, 500 mA","metaDescription":"ULQ2003ATDQ1 active production, AEC-Q100 qualified, 7-channel low-side NPN driver, 500 mA per output, 50V load max, -40 to 105°C. Quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tube","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 ~ 105°C (TA)","Current - Output (Max)":"500mA","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.24000","currency":"USD"},{"qty":10,"price":"$1.10700","currency":"USD"},{"qty":100,"price":"$0.86310","currency":"USD"},{"qty":500,"price":"$0.71296","currency":"USD"},{"qty":1000,"price":"$0.56286","currency":"USD"},{"qty":2000,"price":"$0.53100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1984e06f756b941cb117d7c4733de5b3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the ULQ2003ATDQ1 and how is it quoted?","answer":"The ULQ2003ATDQ1 is an active-production part from Texas Instruments. No stock-holding claim is made — each order is quoted individually."},{"question":"Does the ULQ2003ATDQ1 have AEC-Q100 qualification?","answer":"Yes, the ULQ2003ATDQ1 is part of the Automotive, AEC-Q100 series from Texas Instruments, meaning it is qualified for automotive-grade reliability and temperature performance."},{"question":"What is the maximum output current of the ULQ2003ATDQ1?","answer":"Each of the seven outputs can sink up to 500 mA continuously, with a maximum load voltage of 50 V. The device is a low-side NPN driver with integrated clamp diodes for inductive loads."},{"question":"Is the ULQ2003ATDQ1 compatible with 5V logic?","answer":"Yes, the inputs are inverting and require no external Vcc supply — they are directly compatible with 5 V logic families such as CMOS and TTL. The parallel interface connects straight to microcontroller GPIO pins."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ULQ2003ATDQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ULQ2003ATDQ1 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}}