{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24123RHLTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24123RHLTG4","canonicalUrl":"https://icboms.com/texas-instruments/BQ24123RHLTG4","factsUrl":"https://icboms.com/api/mcp/products/BQ24123RHLTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments bqSWITCHER™ series, BQ24123RHLTG4, Li-Ion/Polymer battery charger IC, 1-3 cells, 2A max charge current, 16V supply, 20-VFQFN Exposed Pad, -40 to 85°C.","salesMarkdown":"## Battery charger for 1-3 Li-Ion cells The Texas Instruments BQ24123RHLTG4 is a bqSWITCHER™ series switch-mode battery charger IC designed for 1 to 3 series Li-Ion or Li-Polymer cells. It delivers a programmable constant-current charge up to 2A maximum, with a battery pack voltage target of 8.4V for the 2-cell configuration. The input supply can go up to 16V, making it compatible with common 5V USB or 12V wall adapters. ## Charge current and programmable features The charge current is constant-current programmable, with a maximum rating of 2A. The IC also provides programmable timer and current features via external components, giving the designer control over charge termination and safety timeout. ## Industrial temperature grade and protection On-chip fault protection includes over-temperature shutdown, which prevents damage if the die exceeds safe limits during a high-current charge cycle in a hot enclosure.","metaTitle":"BQ24123RHLTG4 Li-Ion Charger IC, 2A, 16V Input, bqSWITCHER","metaDescription":"Texas Instruments BQ24123RHLTG4 battery charger IC for 1-3 Li-Ion/Polymer cells. 2A max charge current, 16V supply, -40 to 85°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"bqSWITCHER™","Package":"Tape & Reel (TR)","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Number of Cells":"1 ~ 3","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24123","Battery Pack Voltage":"8.4V","Charge Current - Max":"2A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"16V","Supplier Device Package":"20-VQFN (3.5x4.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$58.8000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/113f4600c3c0000927d760994a454ad9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can BQ24123RHLTG4 charge a 4-cell Li-Ion pack?","answer":"No. The IC supports only 1 to 3 series cells. A 4-cell pack (16.8V nominal) exceeds the battery pack voltage rating of 8.4V and the charge algorithm is not designed for that chemistry stack."},{"question":"What is the difference between BQ24123RHLTG4 and BQ24123RHLTRG4?","answer":"The suffix difference indicates packaging and reel quantity. BQ24123RHLTG4 is Tape & Reel (TR) — typically a standard reel quantity. BQ24123RHLTRG4 is also Tape & Reel but may differ in reel size or quantity. The die and electrical specifications are identical."},{"question":"What is the maximum charge current of BQ24123RHLTG4?","answer":"The maximum charge current is 2A, programmable via an external sense resistor or current-set resistor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24123RHLTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24123RHLTG4 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}}