{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24157YFFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24157YFFR","canonicalUrl":"https://icboms.com/texas-instruments/BQ24157YFFR","factsUrl":"https://icboms.com/api/mcp/products/BQ24157YFFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24157YFFR, single-cell Li-Ion/Polymer battery charger IC, I²C programmable, 1.55A max charge current, 4.44V max battery voltage, over-temperature and over-voltage protection, 20-DSBGA package, -30°C to 85°C operating range.","salesMarkdown":"It uses an I²C interface for programmable charge current control, with a maximum charge current of 1.55A and a maximum battery pack voltage of 4.44V. This is the part to reach for when you need a compact, host-controlled charger for a single-cell Li-Ion pack in a space-constrained design. ## 1.55A charge current — sizing the charge path The 1.55A maximum charge current sets the charge time for a typical 1000 mAh to 2000 mAh single-cell pack at roughly one hour to two hours, depending on termination. The I²C interface lets the host adjust the current on the fly for thermal management or USB input current limiting. Keep the PCB trace from the charger output to the battery connector wide enough for 1.55A continuous — 20 mils minimum on 1 oz copper, or use a short, direct route with a via stitch to an inner plane. ## 20-DSBGA — footprint and handling","metaTitle":"BQ24157YFFR Li-Ion Battery Charger IC, 1.55A Max, I²C","metaDescription":"Texas Instruments BQ24157YFFR single-cell Li-Ion/Polymer charger IC with I²C interface, programmable charge current up to 1.55A, over-temperature and","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-UFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24157","Battery Pack Voltage":"4.44V (Max)","Charge Current - Max":"1.55A","Operating Temperature":"-30°C~85°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"6V","Supplier Device Package":"20-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","priceTiers":[{"qty":1,"price":"$1.97000","currency":"USD"},{"qty":10,"price":"$1.77000","currency":"USD"},{"qty":25,"price":"$1.66960","currency":"USD"},{"qty":100,"price":"$1.42240","currency":"USD"},{"qty":250,"price":"$1.33560","currency":"USD"},{"qty":500,"price":"$1.16864","currency":"USD"},{"qty":1000,"price":"$0.96831","currency":"USD"},{"qty":3000,"price":"$0.94500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a0e4a85350ae46f92781d2ccf269b93d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ24157YFFR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum charge current for BQ24157YFFR?","answer":"The maximum programmable charge current is 1.55A, controlled via the I²C interface. The actual current set in firmware should account for the input supply limit and thermal budget of the 20-DSBGA package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24157YFFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24157YFFR 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}}