{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6389XS44D3","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6389XS44D3","canonicalUrl":"https://icboms.com/analog-devices/MAX6389XS44D3","factsUrl":"https://icboms.com/api/mcp/products/MAX6389XS44D3","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX6389XS44D3 multi-voltage supervisor, 2-channel, active low reset, open-drain output, 4.38V fixed threshold plus adjustable second channel, 140ms minimum reset timeout, SC-70-4 package, -40°C to 125°C.","salesMarkdown":"## Two-rail supervisor in a four-pin SC-70 Reset timeout is a minimum of 140ms, long enough to cover most MCU/FPGA boot sequences without external timing components. The open-drain output lets the reset line be shared across multiple supervisors or pulled up to a different voltage than the monitored rails. ## Temperature grade and package fit Rated for -40°C to 125°C ambient, this part suits industrial motor drives, outdoor telecom, and automotive under-hood environments where the PCB sees extended thermal cycling. Housed in a 4-pin SC-70 (SOT-343) package, it occupies minimal board area. ## Lifecycle and sourcing posture No last-time-buy risk; it can be specified into new designs and production BOMs without obsolescence concern. Note the RoHS non-compliant marking — this is the legacy tin-lead finish version. If your assembly line is RoHS-exempt (military, aerospace, or medical with exemption 7a), this is the correct variant. For standard RoHS builds, verify the lead-free suffix (e.g., MAX6389XS44D3+T) is the intended order code.","metaTitle":"MAX6389XS44D3 Multi-Voltage Supervisor, 4.38V Threshold","metaDescription":"MAX6389XS44D3 multi-voltage supervisor monitors two rails with 4.38V fixed threshold and adjustable second channel.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Multi-Voltage Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Package":"Bulk","Mounting Type":"Surface Mount","Reset Timeout":"140ms Minimum","Package / Case":"SC-82A, SOT-343","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.38V, Adj","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SC-70-4","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.74","stockQuantity":0,"priceTiers":[{"qty":110,"price":"$2.74000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2a43ef6f52c719a0bf0ab10173c69901.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of the MAX6389XS44D3 — open-drain or push-pull?","answer":"The reset output is open-drain (open collector). This allows the reset line to be pulled up to any voltage up to the absolute maximum rating, enabling level translation between the monitored rail and the processor reset input."},{"question":"Is the MAX6389XS44D3 RoHS compliant?","answer":"No, the MAX6389XS44D3 is listed as RoHS non-compliant. It uses a tin-lead (SnPb) finish. For RoHS-compliant builds, check the lead-free suffix variant (e.g., MAX6389XS44D3+T)."},{"question":"What is the reset timeout on the MAX6389XS44D3?","answer":"The reset timeout is 140ms minimum. This is the duration the reset output stays asserted after all monitored voltages rise above their thresholds."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6389XS44D3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6389XS44D3 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}}