{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6409BS44","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6409BS44","canonicalUrl":"https://icboms.com/analog-devices/MAX6409BS44","factsUrl":"https://icboms.com/api/mcp/products/MAX6409BS44","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX6409BS44 Simple Reset/Power-On Reset IC, Active Low, Push-Pull Output, 4.38V Threshold, 20µs Propagation Delay, 4-UCSP (1.05×1.05mm), -40°C to 85°C.","salesMarkdown":"## 4.38 V threshold — the line between brownout and reliable boot The MAX6409BS44: This is the part that holds a microcontroller in reset until the supply is stable, preventing code-execution glitches during power-up or brownout events. The 20 µs typical propagation delay means the output responds within one clock cycle of most low-speed microcontrollers — the processor sees the fault before the next instruction fetch. ## Industrial temperature range and tiny footprint The 4-UCSP package (1.05 × 1.05 mm) is a wafer-level chip-scale package — the die sits directly on the board with no plastic overmold, so the board-mounting process must manage the exposed silicon edge and the narrow solder-joint standoff. Because it monitors only one voltage, the MAX6409BS44 is a dedicated single-rail supervisor — not a multi-voltage sequencer. For a design that already has a separate PMIC or sequencer, this part serves as a local reset generator for a single core or I/O rail. Note the RoHS compliance flag: this part is listed as RoHS non-compliant. If your BOM requires RoHS exemption or a fully compliant alternative, confirm the material declaration with the factory before committing the line.","metaTitle":"MAX6409BS44 Simple Reset/Power-On Reset, 4.38V Threshold","metaDescription":"MAX6409BS44 from Analog Devices — active simple reset IC, 4.38V threshold, active-low push-pull output, 20µs propagation delay, -40 to 85°C, 4-UCSP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Package":"Bulk","Mounting Type":"Surface Mount","Reset Timeout":"20µs Typical Propagation Delay","Package / Case":"4-WFBGA, CSPBGA","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.38V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"4-UCSP (1.05x1.05)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.74","stockQuantity":0,"priceTiers":[{"qty":110,"price":"$2.74000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ada3077327137de0b16fdb868c7d52f8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the MAX6409BS44 RoHS compliant?","answer":"No — the part is listed as RoHS non-compliant. Verify your board-level compliance requirements before specifying this supervisor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6409BS44","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6409BS44 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}}