{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS2777G+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS2777G","canonicalUrl":"https://icboms.com/analog-devices/DS2777G","factsUrl":"https://icboms.com/api/mcp/products/DS2777G%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS2777G+ Multi-Function Controller, Li-Ion 2-Cell, I²C Interface, 14-WFDFN Exposed Pad, -20°C to 70°C, Tube.","salesMarkdown":"## What this part is and where it fits The Analog Devices DS2777G+ is a multi-function controller built for 2-cell lithium-ion/polymer battery packs. It handles charge and discharge monitoring, communicates over I²C to a host MCU, and integrates over-current and over-voltage fault protection. The part is aimed at portable equipment, power tools, medical devices, and backup-battery systems where the ambient stays between -20°C and 70°C — indoor or sheltered environments, not under-hood automotive or outdoor enclosures without climate control. Package is a 14-TDFN (3x5 mm) with an exposed pad for thermal relief, surface-mount only. ## I²C interface and fault protection — what matters for the BOM The I²C interface is the only host link on this controller. If your MCU does not have an I²C peripheral, you will need a bit-banged GPIO pair or an I²C bridge. The over-current and over-voltage fault protection is built in, which reduces external sense resistors and comparators — saves board area and BOM count. The protection thresholds are set internally; there is no external trim resistor for the trip points, so verify the default limits match your cell chemistry and charge profile. ## Package and mounting 14-TDFN with exposed pad, 3x5 mm body. The exposed pad must be soldered to a thermal land on the PCB — do not leave it floating. The pad is the primary heat path; a via array under the pad to a copper plane keeps junction temperature within the -20°C to 70°C operating range. Tube shipment, not tape-and-reel, so plan for manual placement or a tube feeder if your line is set up for reels. ## Lifecycle and sourcing The DS2777G+ carries an Active product status with ROHS3 compliance. No NRND or last-time-buy notice. It is sourced through independent distribution and quoted to order against an RFQ — availability and current pricing confirmed at quote time. No pin-compatible second source or official replacement has been published; if you need a cross, the closest functional sibling is another Analog Devices 2-cell Li-Ion controller with I²C, but the package and protection set differ — verify the full pinout before substituting.","metaTitle":"DS2777G+ Multi-Function Controller, I²C, 2-Cell Li-Ion","metaDescription":"DS2777G+ from Analog Devices is an active multi-function controller for 2-cell Li-Ion packs with I²C interface, over-current and over-voltage fault protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Tube","Function":"Multi-Function Controller","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"14-WFDFN Exposed Pad","Number of Cells":"2","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Operating Temperature":"-20°C ~ 70°C (TA)","Supplier Device Package":"14-TDFN (3x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.77","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.77000","currency":"USD"},{"qty":10,"price":"$9.72800","currency":"USD"},{"qty":25,"price":"$9.27600","currency":"USD"},{"qty":100,"price":"$8.05410","currency":"USD"},{"qty":250,"price":"$7.69216","currency":"USD"},{"qty":500,"price":"$7.01344","currency":"USD"},{"qty":1000,"price":"$6.10848","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/DS2775-DS2778.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does DS2777G+ support I2C communication?","answer":"Yes, the DS2777G+ communicates over an I²C interface to a host microcontroller."},{"question":"What is the fault protection on DS2777G+?","answer":"The DS2777G+ includes built-in over-current and over-voltage fault protection for the battery pack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS2777G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS2777G 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}}