{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6391KA46+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6391KA46~3T","canonicalUrl":"https://icboms.com/analog-devices/MAX6391KA46~3T","factsUrl":"https://icboms.com/api/mcp/products/MAX6391KA46%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX6391KA46+T multi-voltage supervisor, active-low reset, open drain output, 4.63V threshold, 140ms reset timeout, SOT-23-8, tape and reel.","salesMarkdown":"## Active production — two-rail supervisor in SOT-23-8 The MAX6391KA46+T is an active-production multi-voltage supervisor from Analog Devices, monitoring two supply rails with a fixed 4.63 V threshold on one channel and an adjustable threshold on the second. The active-low reset output is open drain, pulling low for 140 ms (minimum, adjustable) when either monitored voltage drops below its threshold — a standard sequencing fit for MPU, FPGA, or DSP core and I/O rails. ## Threshold selection and reset timing One channel has a factory-set 4.63 V threshold, typically used for a 5 V nominal rail; the second channel accepts an external resistor divider for any voltage down to 0.6 V. The 140 ms reset timeout is the default minimum; an external capacitor extends it, giving the designer control over power-good hold-off time during start-up sequencing. ## SOT-23-8 package and sourcing Housed in an SOT-23-8 package (supplier device package SOT-23-8), the MAX6391KA46+T is surface-mount and available in tape-and-reel or cut-tape quantities.","metaTitle":"MAX6391KA46+T Multi-Voltage Supervisor, 4.63V Threshold","metaDescription":"MAX6391KA46+T multi-voltage supervisor from Analog Devices, active-low reset, 4.63V threshold, SOT-23-8. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Type":"Multi-Voltage Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"140ms/Adjustable Minimum","Package / Case":"SOT-23-8","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.63V, Adj","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-8","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.50000","currency":"USD"},{"qty":10,"price":"$3.14200","currency":"USD"},{"qty":25,"price":"$2.97000","currency":"USD"},{"qty":100,"price":"$2.57400","currency":"USD"},{"qty":250,"price":"$2.44200","currency":"USD"},{"qty":500,"price":"$2.19120","currency":"USD"},{"qty":1000,"price":"$1.84800","currency":"USD"},{"qty":2500,"price":"$1.75560","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/73d114ab67846c57748831646173434f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the reset output type and timeout on MAX6391KA46+T?","answer":"The reset output is active-low, open drain. The reset timeout is 140 ms minimum, adjustable with an external capacitor on the delay pin."},{"question":"How many voltages does the MAX6391KA46+T monitor and what are the thresholds?","answer":"It monitors two voltages. One channel has a fixed 4.63 V threshold; the second channel uses an adjustable threshold set by an external resistor divider."},{"question":"Where can I buy MAX6391KA46+T and how is it quoted?","answer":"The MAX6391KA46+T is sourced through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6391KA46~3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6391KA46~3T 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}}