{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ21061YFPT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ21061YFPT","canonicalUrl":"https://icboms.com/texas-instruments/BQ21061YFPT","factsUrl":"https://icboms.com/api/mcp/products/BQ21061YFPT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ21061YFPT, single-cell Li-Ion/Polymer linear battery charger IC, 500 mA max charge current, I²C programmable, overcurrent protection, 20-DSBGA package, -40°C to 85°C.","salesMarkdown":"## Single-cell Li-Ion charger with I²C control The Texas Instruments BQ21061YFPT is a single-cell linear battery charger IC for Lithium Ion/Polymer packs. It delivers a programmable charge current up to 500 mA, set via the I²C interface or an external resistor. Overcurrent protection is built in. The part operates from a 5.25 V max supply and is rated over -40°C to 85°C, suiting portable and wearable devices where board space is tight. ## 500 mA charge current — sizing the charge time The 500 mA maximum charge current sets the charge rate for a single-cell Li-Ion pack. The current is constant and programmable. ## I²C interface — what it buys you The I²C bus lets the system host adjust the charge current on the fly, read fault flags, and control the charge cycle without extra GPIOs. That is useful in multi-chemistry or multi-capacity product lines — one BOM, firmware-selectable current. The interface is the only programmable feature listed; no voltage or termination-current registers are confirmed in this record, so treat the current as the primary I²C-controlled parameter. ## 20-DSBGA — footprint and assembly The 20-DSBGA package is surface-mount. The supplier device package is 20-DSBGA.","metaTitle":"TI BQ21061YFPT Li-Ion Battery Charger IC, 500mA, I²C","metaDescription":"Texas Instruments BQ21061YFPT single-cell Li-Ion/Polymer battery charger IC. 500 mA max charge current, I²C programmable, overcurrent protection, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"20-XFBGA, DSBGA","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"2.4V ~ 4.6V","Charge Current - Max":"500mA","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Current","Voltage - Supply (Max)":"5.25V","Supplier Device Package":"20-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.76000","currency":"USD"},{"qty":10,"price":"$3.37800","currency":"USD"},{"qty":25,"price":"$3.19360","currency":"USD"},{"qty":100,"price":"$2.76770","currency":"USD"},{"qty":250,"price":"$2.62576","currency":"USD"},{"qty":500,"price":"$2.35610","currency":"USD"},{"qty":1250,"price":"$2.00850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ad003d8d86e3e15f8a6351c20e11058e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current of BQ21061YFPT?","answer":"The maximum charge current is 500 mA. The current is constant and programmable via the I²C interface or an external resistor."},{"question":"Is the BQ21061YFPT I²C programmable?","answer":"Yes, the I²C interface is used to program the charge current. The part also has a programmable current feature, which is the I²C-controlled parameter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ21061YFPT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ21061YFPT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T20:31:30.698Z","lastPublished":"2026-07-13T20:31:30.698Z","indexable":true}}