{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1737EEI+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1737EEI","canonicalUrl":"https://icboms.com/analog-devices/MAX1737EEI","factsUrl":"https://icboms.com/api/mcp/products/MAX1737EEI%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1737EEI+, standalone Li-Ion battery charger IC, 1-4 cells, 28V supply max, constant-current charging, timer programmability, -40°C to 85°C, 28-SSOP (0.154\", 3.90mm Width), surface mount, Tube, ROHS3 compliant.","salesMarkdown":"## 28V input, 1-4 cell Li-Ion charger in a 28-SSOP The MAX1737EEI+ from Analog Devices (formerly Maxim Integrated) is a standalone constant-current Li-Ion battery charger IC designed to charge 1 to 4 series cells. It accepts a supply voltage up to 28V, making it suitable for applications powered by unregulated wall adapters, automotive 12V rails, or multi-cell battery packs. The device is packaged in a 28-SSOP (0.154\", 3.90mm width) for surface-mount assembly and operates over the industrial temperature range of -40°C to 85°C. ## Constant-current charging with timer-based termination This charger uses a constant-current charging algorithm, which is the standard approach for Li-Ion cells up to the voltage regulation threshold. The only programmable feature is a timer, so charge termination is based on timeout rather than current tapers or temperature monitoring. This simplifies the BOM for fixed-capacity battery packs where the charge time is well-characterized, but it means the designer must ensure the timer period matches the cell capacity and charge current to avoid under- or over-charging. ## Industrial temperature grade and sourcing posture Rated for -40°C to 85°C ambient, the MAX1737EEI+ fits outdoor telecom, automotive cabin, industrial instrumentation, and portable medical gear where the charger must survive cold starts and hot enclosures. The part is listed as Active and ROHS3 compliant, meaning it remains a current-production, first-choice design-in for new BOMs.","metaTitle":"MAX1737EEI+ Li-Ion Battery Charger IC, 1-4 Cells, 28V Input","metaDescription":"MAX1737EEI+ standalone Li-Ion charger IC from Analog Devices. Charges 1-4 cells at constant current, 28V max input, -40°C to 85°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"28-SSOP (0.154\\\", 3.90mm Width)","Number of Cells":"1 ~ 4","lifecycle_stage":"eol_hot","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant","Battery Pack Voltage":"16.8V","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Timer","Voltage - Supply (Max)":"28V","Supplier Device Package":"28-QSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.36000","currency":"USD"},{"qty":10,"price":"$6.64500","currency":"USD"},{"qty":25,"price":"$6.33560","currency":"USD"},{"qty":100,"price":"$5.50130","currency":"USD"},{"qty":250,"price":"$5.25400","currency":"USD"},{"qty":500,"price":"$4.79044","currency":"USD"},{"qty":1000,"price":"$4.17231","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX1737.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can MAX1737EEI+ charge a single-cell lithium battery?","answer":"Yes, it supports 1 to 4 series Li-Ion cells, so a single-cell (1S) pack is within its capability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1737EEI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1737EEI 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}}