{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4821EUP+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4821EUPT","canonicalUrl":"https://icboms.com/analog-devices/MAX4821EUPT","factsUrl":"https://icboms.com/api/mcp/products/MAX4821EUP%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4821EUP+T, 8-channel low-side relay/solenoid driver, 70 mA per channel, 2 Ω Rds(on), parallel/serial interface, 2.3 V to 5.5 V load supply, -40°C to 85°C, 20-TSSOP-EP.","salesMarkdown":"## Package and mounting The MAX4821EUP+T is an 8-channel low-side N-channel driver from Analog Devices, built to switch relays, solenoids, and small inductive loads. Each output sinks up to 70 mA, with a typical on-resistance of 2 Ω. The load supply runs from 2.3 V to 5.5 V. The part accepts both parallel and serial interface control, which means you can drive it from a GPIO port or daisy-chain it on a shift-register bus. That dual-interface flexibility simplifies BOM consolidation — one driver IC covers both legacy and SPI-driven controller architectures. ## Industrial temperature range and package Rated for -40°C to 85°C ambient, the MAX4821EUP+T fits factory-floor automation, outdoor telecom enclosures, and HVAC panels. It is not AEC-Q100 qualified, so keep it out of under-hood or chassis-domain automotive designs. The 20-TSSOP with exposed pad (20-TSSOP-EP) helps pull heat into the PCB copper pour — important if you are running all eight channels near the 70 mA limit in a still-air enclosure. ## Lifecycle and sourcing posture The MAX4821EUP+T carries an Active lifecycle status and is ROHS3 compliant. There is no last-time-buy or NRND flag, so it is safe to qualify into new production.","metaTitle":"MAX4821EUP+T Relay & Solenoid Driver, 8-Ch Low-Side, 70 mA","metaDescription":"MAX4821EUP+T 8-channel low-side driver from Analog Devices. 70 mA per channel, 2 Ω Rds(on), parallel/serial interface, 20-TSSOP-EP. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"Parallel, Serial","Output Type":"N-Channel","Switch Type":"Relay, Solenoid Driver","Rds On (Typ)":"2Ohm","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width) Exposed Pad","Voltage - Load":"2.3V ~ 5.5V","lifecycle_stage":"eol_hot","Number of Outputs":"8","Output Configuration":"Low Side","Ratio - Input:Output":"1:8","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"70mA","Supplier Device Package":"20-TSSOP-EP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.95","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.95000","currency":"USD"},{"qty":10,"price":"$4.44700","currency":"USD"},{"qty":25,"price":"$4.20400","currency":"USD"},{"qty":100,"price":"$3.64360","currency":"USD"},{"qty":250,"price":"$3.45672","currency":"USD"},{"qty":500,"price":"$3.10172","currency":"USD"},{"qty":1000,"price":"$2.61590","currency":"USD"},{"qty":2500,"price":"$2.48510","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX4820-MAX4821.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current per channel?","answer":"Each of the eight low-side outputs can sink up to 70 mA maximum. Typical on-resistance is 2 Ω, so voltage drop at full load is about 140 mV."},{"question":"What package does the MAX4821EUP+T use?","answer":"It comes in a 20-lead TSSOP with exposed pad (20-TSSOP-EP), surface-mount. The exposed pad aids thermal dissipation into the PCB ground plane."},{"question":"What interface does the MAX4821EUP+T support?","answer":"It supports both parallel and serial interface control. You can drive it directly from GPIO lines or daisy-chain it on a serial bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4821EUPT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4821EUPT 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}}