{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24203DGN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24203DGN","canonicalUrl":"https://icboms.com/texas-instruments/BQ24203DGN","factsUrl":"https://icboms.com/api/mcp/products/BQ24203DGN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ24203DGN, single-cell Li-Ion/Polymer linear charger IC, 500mA max charge current, 4.1V battery pack voltage, over-temperature and short-circuit protection, 8-HVSSOP package, active lifecycle.","salesMarkdown":"## 500 mA max charge current — sizing the charge path The BQ24203DGN is a single-cell linear charger IC from Texas Instruments for Li-Ion and Li-Polymer battery packs. Its maximum charge current is 500 mA, which sets the charge time and thermal dissipation for a given cell capacity — a 1000 mAh cell charges in roughly two hours at this rate. ## 4.1V termination — not the usual 4.2V ceiling The battery pack voltage is regulated to 4.1V, not the more common 4.2V. This matters when the BOM specifies a cell with a 4.1V full-charge voltage — using a 4.2V charger would overcharge the cell and risk damage or reduced cycle life. ## Built-in fault protection reduces external BOM Over-temperature and short-circuit protection are integrated, so the design does not need external supervisory components for these fault conditions. The constant-current charging algorithm is fixed, with programmable current and timer settings via external resistors. ## Package and thermal path: 8-HVSSOP with exposed pad Surface-mount assembly with standard reflow profiles applies.","metaTitle":"BQ24203DGN Li-Ion/Polymer Charger IC, 500mA Max, 4.1V","metaDescription":"Texas Instruments BQ24203DGN single-cell Li-Ion/Polymer charger IC. 500mA max charge current, 4.1V battery pack voltage, over-temp & short-circuit protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant","Base Product Number":"BQ24203","Battery Pack Voltage":"4.1V","Charge Current - Max":"500mA","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"13.5V","Supplier Device Package":"8-HVSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8d269c85a61d814b6ccabe42b85d2ae7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current of BQ24203DGN?","answer":"The maximum charge current is 500 mA. This is a constant-current linear charger, so the charge time scales inversely with the cell capacity."},{"question":"What package is BQ24203DGN available in?","answer":"It is supplied in an 8-HVSSOP package (3.00 mm width, exposed pad) on tape and reel or tube. The supplier device package code is 8-HVSSOP."},{"question":"Can BQ24203DGN charge a 4.2V cell?","answer":"No. The battery pack voltage is regulated to 4.1V. Charging a 4.2V cell with this part will under-charge it, leaving capacity unused. For 4.2V cells, look at the BQ24200 or BQ24201 variants in the same family."},{"question":"Does BQ24203DGN support over-temperature protection?","answer":"Yes, over-temperature and short-circuit fault protection are integrated. No external components are needed for these functions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24203DGN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24203DGN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}