{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX691CWE-T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX691CWE-T","canonicalUrl":"https://icboms.com/analog-devices/MAX691CWE-T","factsUrl":"https://icboms.com/api/mcp/products/MAX691CWE-T","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX691CWE-T Battery Backup Circuit, 16-SOIC, Active High/Active Low Reset, Push-Pull Output, 4.65V Threshold, 35ms Reset Timeout, Surface Mount.","salesMarkdown":"## What the 4.65 V threshold and 35 ms timeout mean on the bench The MAX691CWE-T is a battery-backup supervisor IC from Analog Devices — it monitors a single supply rail at 4.65 V and asserts reset when the voltage dips below that threshold, holding the reset active for a minimum of 35 ms after the rail recovers. That 35 ms window is the time the system gets to stabilise before the processor starts executing code; if your board's power supply has a slow ramp or a glitchy start-up, this timeout gives the oscillator and PLL time to lock before the CPU fetches its first instruction. ## Reset and output wiring The part offers both active-high and active-low reset outputs, each driven by a push-pull stage — no external pull-up resistor needed on either pin. That means you can wire the active-low output directly to a microcontroller's /RST input and the active-high output to a power-good LED or an enable line on a downstream regulator without adding a resistor divider. ## Package and temperature grade The 16-SOIC package is straightforward to rework with hot air; the wide body gives you room to route traces between the pads without necking down below the fab's minimum clearance. Pin 1 is clearly marked with a dot on the package top, so orientation is unambiguous under a microscope. It is RoHS non-compliant per the manufacturer's designation, so factor that into any EU or RoHS-restricted BOM line.","metaTitle":"MAX691CWE-T Battery Backup Circuit, 4.65V Threshold, 16-SOIC","metaDescription":"Analog Devices MAX691CWE-T supervisor IC, Battery Backup Circuit type, 4.65V threshold, 35ms reset timeout, 16-SOIC. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Type":"Battery Backup Circuit","Reset":"Active High/Active Low","Output":"Push-Pull, Push-Pull","Package":"Bulk","Mounting Type":"Surface Mount","Reset Timeout":"35ms Minimum","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.65V","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"16-SOIC","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.88","stockQuantity":0,"priceTiers":[{"qty":62,"price":"$4.88000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b8ff0dc662222b8c53e41b1162893d81.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX691CWE-T used for?","answer":"Typical use is in microprocessor systems that need a clean reset during power-up or brownout conditions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX691CWE-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX691CWE-T 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}}