{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25120AYFPT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25120AYFPT","canonicalUrl":"https://icboms.com/texas-instruments/BQ25120AYFPT","factsUrl":"https://icboms.com/api/mcp/products/BQ25120AYFPT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25120AYFPT, single-cell Li-Ion/Polymer linear charger, 300 mA max charge current, I²C programmable, 5.5 V supply max, -40°C to 125°C, 25-DSBGA package.","salesMarkdown":"## 300 mA I²C-programmable linear charger for single-cell Li-ion packs The Texas Instruments BQ25120AYFPT is a single-cell Li-Ion/Polymer linear battery charger with a maximum charge current of 300 mA, controlled via an I²C interface. It integrates over-temperature, over-voltage, and short-circuit fault protection, reducing the external component count for a compact charging solution. The 25-DSBGA package suits space-constrained portable designs where board area is at a premium. ## Charge current ceiling and programmable control The 300 mA charge current ceiling is set by the constant-current programmable feature, adjustable via the I²C bus from the host microcontroller. This allows the system to trade off charge speed against thermal budget in real time — useful in a sealed enclosure where junction temperature at the 25-DSBGA package limits dissipation. The battery pack voltage is fixed at 4.2 V, standard for a single Li-ion cell. Supply voltage maxes out at 5.5 V. ## Package and mounting: 25-DSBGA land pattern The 25-DSBGA package requires a surface-mount assembly process with a solder-paste stencil matched to the bump geometry.","metaTitle":"BQ25120AYFPT Single-Cell Li-Ion Charger, 300 mA, I²C","metaDescription":"Texas Instruments BQ25120AYFPT single-cell Li-Ion/Polymer charger, 300 mA max, I²C programmable, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"25-XFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ25120","Battery Pack Voltage":"4.2V","Charge Current - Max":"300mA","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current","Voltage - Supply (Max)":"5.5V","Supplier Device Package":"25-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3681d9549b5d911afd0df281bfda88f3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current for BQ25120AYFPT?","answer":"The maximum charge current is 300 mA, programmable via the I²C interface. The charger operates as a constant-current source up to this ceiling, then transitions to constant-voltage at the 4.2 V battery regulation point."},{"question":"Is BQ25120AYFPT RoHS compliant?","answer":"RoHS compliance is standard for TI's BQ25120 series; confirm the specific date-code compliance certificate with your order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25120AYFPT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25120AYFPT 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}}