{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24157SYFFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24157SYFFT","canonicalUrl":"https://icboms.com/texas-instruments/BQ24157SYFFT","factsUrl":"https://icboms.com/api/mcp/products/BQ24157SYFFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24157SYFFT, single-cell Lithium Ion/Polymer battery charger IC, I²C programmable charge current up to 1.25 A, 4.44 V max battery pack voltage, over-temperature and over-voltage fault protection, 20-DSBGA package.","salesMarkdown":"The BQ24157SYFFT is a single-cell Lithium Ion/Polymer battery charger IC from Texas Instruments. It delivers a programmable charge current up to 1.25 A to a battery pack voltage of 4.44 V max. The I²C interface lets the system microcontroller set the charge current and termination voltage without external resistors, saving board space. ## 1.25 A charge current — thermal and layout impact At the 1.25 A maximum charge current, the power dissipation in the 20-DSBGA package becomes the limiting factor. The 0.5 mm pitch BGA has no exposed thermal pad; heat conducts through the solder balls and the top-layer copper. The constant-current charge phase is programmable via I²C, so the charge current can be reduced to stay within the thermal budget of a given PCB layout. The part is ROHS3 compliant. For volume requirements, the Tape & Reel (TR) packaging option is standard; Cut Tape (CT) is available for prototyping. ## Supply rail and protection features The IC operates from a supply voltage up to 6 V and includes over-temperature and over-voltage fault protection. The -30°C to 85°C ambient temperature range covers industrial and consumer portable applications.","metaTitle":"BQ24157SYFFT Li-Ion Battery Charger IC – 1.25A, I²C","metaDescription":"Active Texas Instruments BQ24157SYFFT single-cell Li-Ion charger with I²C interface, 1.25A max charge current, 4.44V battery pack voltage. 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-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":"1.25A","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":"$3.8700","priceTiers":[{"qty":1,"price":"$3.87000","currency":"USD"},{"qty":10,"price":"$3.47400","currency":"USD"},{"qty":25,"price":"$3.28400","currency":"USD"},{"qty":100,"price":"$2.84630","currency":"USD"},{"qty":250,"price":"$2.70028","currency":"USD"},{"qty":500,"price":"$2.42296","currency":"USD"},{"qty":1250,"price":"$2.06550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1e82ee7d6fb3026ab2d14b6357bf0f26.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ24157SYFFT/alternatives.json"},"ai":{"faq":[{"question":"What package does the BQ24157SYFFT come in?","answer":"The supplier device package is 20-DSBGA. It is available on Tape & Reel (TR) or Cut Tape (CT)."},{"question":"How does the BQ24157SYFFT compare to the BQ24156?","answer":"The BQ24157SYFFT and BQ24156 are both single-cell Li-Ion chargers from the same TI family. The BQ24157 adds I²C programmability for charge current and termination voltage, while the BQ24156 uses external resistor programming. The package and pinout differ — verify compatibility against your BOM before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24157SYFFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24157SYFFT 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}}