{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25155YFPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25155YFPR","canonicalUrl":"https://icboms.com/texas-instruments/BQ25155YFPR","factsUrl":"https://icboms.com/api/mcp/products/BQ25155YFPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25155YFPR, single-cell Li-Ion/Polymer linear charger IC, I²C interface, programmable charge current to 500 mA, 20-bump DSBGA package, -40°C to 85°C operation.","salesMarkdown":"## 500 mA I²C-programmable linear charger for 1-cell Li-ion It integrates fault protection covering overcurrent, overtemperature, overvoltage, reverse battery, and short-circuit conditions. ## I²C programmability and fault envelope Charge current is set through the I²C interface — no external resistor divider needed, which saves two passives and one GPIO. The protection set covers the common failure modes in single-cell portable systems: input overvoltage, battery reverse connection, and die overtemperature. The 3.6 V max supply means this part runs off a standard USB VBUS or a regulated 3.3 V rail, not a 5 V direct input — plan the upstream supply accordingly. No PCN or last-time-buy has been issued. ## 20-bump DSBGA — layout and assembly considerations The 20-DSBGA package has a 0.4 mm ball pitch typical for this class. A four-layer board with microvias is recommended for fan-out. The 1-cell architecture targets battery packs with a 4.2 V termination voltage.","metaTitle":"BQ25155YFPR Texas Instruments Li-Ion Charger IC – I²C","metaDescription":"Texas Instruments BQ25155YFPR single-cell Li-Ion/Polymer charger IC. I²C-programmable charge current up to 500 mA. Active production, 20-DSBGA package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"20-XFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature, Over Voltage, Reverse Battery, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ25155","Battery Pack Voltage":"4.2V","Charge Current - Max":"500mA","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"3.6V","Supplier Device Package":"20-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1200","priceTiers":[{"qty":1,"price":"$3.12000","currency":"USD"},{"qty":10,"price":"$2.79800","currency":"USD"},{"qty":25,"price":"$2.64480","currency":"USD"},{"qty":100,"price":"$2.29230","currency":"USD"},{"qty":250,"price":"$2.17476","currency":"USD"},{"qty":500,"price":"$1.95140","currency":"USD"},{"qty":1000,"price":"$1.66350","currency":"USD"},{"qty":3000,"price":"$1.66350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/55af868ef1473fa47c552e219a8acf78.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ25155YFPR/alternatives.json"},"ai":{"faq":[{"question":"Is the BQ25155YFPR obsolete?","answer":"No — it carries an Active product status. No end-of-life notice has been issued, so it remains suitable for new designs."},{"question":"How do I program the charge current via I²C?","answer":"The BQ25155YFPR uses a standard I²C interface to set the charge current and monitor fault status. The charge current is constant and programmable; the host writes the desired current value to the appropriate register. Refer to the Texas Instruments datasheet for the register map and I²C timing."},{"question":"What is the closest alternative to the BQ25155YFPR in the same family?","answer":"The base product number BQ25155 shares the same die and function. The YFP suffix indicates the DSBGA package variant. Any BQ25155 variant with the same package code is a direct alternative; confirm the package marking and tape/reel option for your assembly house."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25155YFPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25155YFPR 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}}