{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24045DSQT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24045DSQT","canonicalUrl":"https://icboms.com/texas-instruments/BQ24045DSQT","factsUrl":"https://icboms.com/api/mcp/products/BQ24045DSQT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24045DSQT, single-cell Lithium Ion/Polymer linear charger IC, 1A max charge current, 4.35V battery pack voltage, 10-WFDFN exposed pad package, active production.","salesMarkdown":"The BQ24045DSQT is a single-cell linear charger for Lithium Ion or Polymer packs, with a programmable charge current up to 1A and a battery regulation voltage of 4.35V. That 4.35V ceiling is the high-density cell chemistry sweet spot — standard chargers stop at 4.2V, so if your BOM calls for a 4.35V cell, this part is the fit. It packs over-temperature, over-voltage, and short-circuit fault protection on-chip, which means you don't need a separate supervisor IC for the basic safety envelope. ## Charge current and voltage — the two numbers that matter The 1A max charge current is constant-current programmable via a single resistor. For a 500 mAh cell that means a ~30-minute CC phase; for a 2000 mAh pouch you're looking at over two hours to full. The 4.35V battery pack voltage is the termination ceiling — the charger cuts off at that point, so confirm your cell's absolute max rating is at least 4.35V. If your BOM already uses a 4.2V pack, either of those siblings saves a few cents and widens the temp range on the low end.","metaTitle":"BQ24045DSQT Texas Instruments Li-Ion Charger IC – 1A, 4.35V","metaDescription":"Texas Instruments BQ24045DSQT single-cell Li-Ion/Polymer charger IC. Max charge current 1A, battery pack voltage 4.35V, 10-WSON 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":"-","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","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":"BQ24045","Battery Pack Voltage":"4.35V","Charge Current - Max":"1A","Operating Temperature":"0°C~125°C(TJ)","Programmable Features":"Current","Voltage - Supply (Max)":"28V","Supplier Device Package":"10-WSON (2x2)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8400","priceTiers":[{"qty":1,"price":"$1.84000","currency":"USD"},{"qty":10,"price":"$1.64900","currency":"USD"},{"qty":25,"price":"$1.55560","currency":"USD"},{"qty":100,"price":"$1.32530","currency":"USD"},{"qty":250,"price":"$1.24444","currency":"USD"},{"qty":500,"price":"$1.08888","currency":"USD"},{"qty":1250,"price":"$0.90222","currency":"USD"},{"qty":2500,"price":"$0.88050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fc5605cfbdf636b692eebae5cdfb5891.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ24045DSQT/alternatives.json"},"ai":{"faq":[{"question":"Can BQ24045DSQT charge a 4.35V Li-ion battery at 1A?","answer":"Yes. The battery pack voltage is 4.35V and the max charge current is 1A, both on the datasheet. The charge current is programmable via a single resistor, so you set the rate below 1A if the cell or thermal budget demands it."},{"question":"What fault protection does BQ24045DSQT include?","answer":"Over-temperature, over-voltage, and short-circuit protection are integrated. No external supervisor IC is needed for these three fault types."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24045DSQT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24045DSQT 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}}